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www.rosemount.com Reference Manual 00809-0100-4793, Rev CA August 2004 Rosemount 8742C Magnetic Flowmeter Transmitter with FOUNDATION Fieldbus and 8700 Series Magnetic Flowmeter Flowtube

Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

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Page 1: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual 00809-0100-4793, Rev CA

August 2004

Rosemount 8742C Magnetic Flowmeter

Transmitter with FOUNDATION™ Fieldbus and

8700 Series Magnetic Flowmeter Flowtube

Product Discontinued

www.rosemount.com

Page 2: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson
Page 3: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual 00809-0100-4793, Rev CA

August 2004 Rosemount 8742C

Rosemount 8742C Magnetic Flowmeter Transmitter with FOUNDATION

™ Fieldbus and 8700

Series Magnetic Flowmeter Flowtube

Rosemount, the Rosemount logotype, Fisher-Rosemount, Managing the Process Better,

PlantWeb, and SMART FAMILY are registered trademarks of Rosemount Inc.

DeltaV is a trademark of the Fisher-Rosemount group of companies.

HART is a registered trademark of the HART Communication Foundation.

Tefzel and Teflon are registered trademarks of E.I. du Pont de Nemours & Co.

Ryton is a registered trademark of the Phillips Petroleum Co.

Fluoraz is a registered trademark of Greens, Tweed & Co., Inc.

Hastelloy C and Hastelloy C-22 are registered trademarks of Haynes International,

FOUNDATION is a trademark of the Fieldbus Foundation.

Cover photo: 8742h0002

NOTICE

Read this manual before working with the product. For personal and system safety, and for

optimum product performance, make sure you thoroughly understand the contents before

installing, using, or maintaining this product.

Within the United States, Rosemount Inc. has two toll-free assistance numbers:

Customer Central

Technical support, quoting, and order-related questions.

1-800-999-9307 (7:00 am to 7:00 pm CST)

North American Response Center

Equipment service needs.

1-800-654-7768 (24 hours—includes Canada)

Outside of the United States, contact your local Rosemount representative.

The products described in this document are NOT designed for nuclear-qualified

applications. Using non-nuclear qualified products in applications that require

nuclear-qualified hardware or products may cause inaccurate readings.

For information on Rosemount nuclear-qualified products, contact your local Rosemount

Sales Representative.

www.rosemount.com

Page 4: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson
Page 5: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual 00809-0100-4793, Rev CA

August 2004 Rosemount 8742C

Table of Contents

SECTION 1Introduction

System Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Return of Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

SECTION 2Installation

Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Transmitter Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Pre-Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Identify Options and Configurations . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Hardware Switches. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Simulate Enable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Transmitter Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Changing Hardware

Switch Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Rotate Transmitter Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Conduit Ports and Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Conduit Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Conduit Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Transmitter Coil Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Installation Category. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Overcurrent Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Transmitter Communication Input . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Power Conditioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Field Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Transmitter Wiring Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

Transmitter to

Flowtube Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Flowtube to Remote Mount Transmitter Connections . . . . . . . . . . 2-9

Flowtube to Integral Mount Transmitter Connections. . . . . . . . . . 2-10

www.rosemount.com

Page 6: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual00809-0100-40793, Rev CA

August 2004Rosemount 8742C

SECTION 3Flowtube Installation

Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Flowtube Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Flowtube Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Upstream/Downstream

Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Flowtube Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Flow Direction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Installation (Flanged Flowtube) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Gaskets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Flange Bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Installation

(Wafer Flowtube) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

Gaskets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

Flange Bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

Installation

(Sanitary Flowtube) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

Gaskets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

Alignment and Bolting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

Process Leak Protection (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

Standard Housing Configuration . . . . . . . . . . . . . . . . . . . . . . . . . 3-16

Relief Valves. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16

Process Leak Containment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17

SECTION 4Configuration

Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Quick Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Flowtube Calibration Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Assigning Device Tag and Node Address . . . . . . . . . . . . . . . . . . . . . . 4-2

AI Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Arithmetic Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Integrator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

PID Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Configuring Links and Scheduling Block Execution. . . . . . . . . . . . . . . 4-5

Advanced Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

Cascade Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7

Resource Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8

FEATURES and FEATURES_SEL . . . . . . . . . . . . . . . . . . . . . . . . 4-8

MAX_NOTIFY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9

PlantWeb™ Alarms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9

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Page 7: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual 00809-0100-4793, Rev CA

August 2004 Rosemount 8742C

SECTION 5Operation and Maintenance

Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Software Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Local Display Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

Electronics Trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

Auto Zero Trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

Configuring the Advanced Diagnostics and Empty Pipe . . . . . . . . 5-4

Learning Empty Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

Diagnostic Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

Diagnostic Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9

Hardware Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9

Replacing the FOUNDATION™ Fieldbus Electronics Housing. . . . . . 5-9

Replacing the FOUNDATION™ Fieldbus Terminal Block in the Housing5-10

Replacing the FOUNDATION™ Fieldbus Electronics Boards. . . . . . 5-10

SECTION 6Troubleshooting

Step 1: Function Block Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

Step 2: Diagnostic Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

Step 3: Wiring Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

Step 4: Process Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

Step 5: Installed Flowtube Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

Step 6: Uninstalled Flowtube Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5

APPENDIX AReference Data

Rosemount 8742C Transmitter Specifications . . . . . . . . . . . . . . . . . .A-1

Functional Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-1

Foundation Fieldbus Specifications . . . . . . . . . . . . . . . . . . . . . . . .A-3

Performance Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-4

Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-5

Rosemount 8705 and 8707 Flowtubes Specifications. . . . . . . . . . . . .A-5

Functional Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-5

Performance Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-8

Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-8

Rosemount 8711 Wafer Flowtube Specifications . . . . . . . . . . . . . . .A-11

Functional Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-11

Performance Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-12

Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-12

Rosemount 8714D Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . .A-14

Functional Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-14

Performance Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-14

Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-14

Dimensional Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-15

Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-22

Rosemount 8742C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-22

Rosemount 8705 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-24

Rosemount 8707 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-28

Rosemount 8711 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-30

Rosemount 8714 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-31

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Page 8: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual00809-0100-40793, Rev CA

August 2004Rosemount 8742C

APPENDIX BProduct Certifications

Approved Manufacturing Locations . . . . . . . . . . . . . . . . . . . . . . . .B-1

European Directive Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-1

ATEX Directive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-1

European Pressure Equipment Directive (PED) (97/23/EC) . . . . .B-1

Electro Magnetic Compatibility (EMC) (89/336/EEC) . . . . . . . . . . .B-2

Low Voltage Directive (93/68/EEC) . . . . . . . . . . . . . . . . . . . . . . . .B-2

Other important guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-2

Hazardous Location Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-3

Transmitter Approval Information . . . . . . . . . . . . . . . . . . . . . . . . .B-3

Flowtube Approval Information. . . . . . . . . . . . . . . . . . . . . . . . . . . .B-7

APPENDIX CResource Block

Definition. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-1

Parameters and Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-1

Resource Block Errors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-5

Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-5

Alarm Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-6

Status Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-6

VCR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-6

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-6

APPENDIX DTransducer Block

Definition. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D-1

Parameters and Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D-2

Flow-Specific Block Configuration Values . . . . . . . . . . . . . . . . . . . . . .D-3

Transducer Block Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D-4

Transducer Block Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D-5

Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D-5

Alarm Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D-5

Status Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D-6

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D-6

APPENDIX EField-Removable Electrodes

Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .E-1

Remove the Electrode Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . .E-1

Replace the Electrode Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . .E-2

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Page 9: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual 00809-0100-4793, Rev CA

August 2004 Rosemount 8742C

Section 1 Introduction

System Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-1

Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-3

Return of Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-3

SYSTEM DESCRIPTION The Rosemount® 8700 Series Magnetic Flowmeter System combines separate flowtube and transmitter units, and measures volumetric flow rate by detecting the velocity of a conductive liquid that passes through a magnetic field. Magnetic Flowmeter Systems consist of a flowtube and a transmitter. There are three Rosemount magnetic flowmeter flowtubes:

• Flanged Rosemount 8705

• Flanged High-Signal Rosemount 8707

• Wafer-Style Rosemount 8711

• Sanitary 8721

There are three Rosemount magnetic flowmeter transmitters:

• Rosemount 8712D/H

• Rosemount 8732C

• Rosemount 8742C

The flowtube is installed in-line with process piping — either vertically or horizontally. Coils located on opposite sides of the flowtube create a magnetic field. A conductive liquid moving through the magnetic field generates a voltage at the two electrodes that is proportional to the flow velocity.

The transmitter drives the coils to generate a magnetic field and electronically conditions the voltage detected by the electrodes. The transmitter then amplifies and conditions the electrode signal to provide a flow signal. The transmitter can be integrally mounted or remotely mounted from the flowtube.

This manual is designed to assist in the installation and operation of Rosemount 8742C Magnetic Flowmeter Transmitter with FOUNDATION

™ fieldbus and 8700 Series Magnetic Flowmeter Flowtubes.

Attempting to install and operate the Rosemount 8705, 8707 High-Signal,

or 8711 Magnetic Flowmeter Flowtubes with the Rosemount 8712D/H,

8732, or 8742 Magnetic Flowmeter Transmitter without reviewing the instructions

contained in this manual could result in personal injury or equipment damage.

www.rosemount.com

Page 10: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual00809-0100-4793, Rev CA

August 2004Rosemount 8742C

Section 2: Installation

• Transmitter Commissioning

• Wiring Flowmeter to a Flowtube

Section 3: Flowtube Installation

• Handling

• Mounting

• Installation of a Flanged, Wafer, and Sanitary Flowtube

Section 4: Configuration

• Assigning Device Tag

• Configuring Blocks

• Configuring Links and Scheduling Block Execution

Section 5: Operation and Maintenance

• Software Operation

• Hardware Maintenance

• Replacing the FOUNDATION™ fieldbus Electronics Housing

Section 6: Troubleshooting

• Troubleshooting Procedures

• Electrical Circuit Diagrams

Appendix A: Reference Data

• Specifications for Rosemount 8742 Transmitter and 8700 Series Flowtubes

• Ordering Tables

• Dimensional Drawings

Appendix B: Product Certifications

• Transmitter Approval Information

• Flowtube Approval Information

Appendix C: Resource Block

• Parameters and Descriptions

• Modes

Appendix D: Transducer Block

• Parameters and Descriptions

• Modes

Appendix E: Field-Removable Electrodes

• Electrode Assembly

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Page 11: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual 00809-0100-4793, Rev CA

August 2004 Rosemount 8742C

SAFETY MESSAGES Procedures and instructions in this manual may require special precautions to ensure the safety of the personnel performing the operations. Refer to the safety messages listed at the beginning of each section before performing any operations.

RETURN OF MATERIALS To expedite the return process outside the United States, contact the nearest Rosemount representative.

Within the United States and Canada, call the North American Response Center using the 800-654-RSMT (7768) toll-free number. The Response Center, available 24 hours a day, will assist you with any needed information or materials.

The center will ask for product model and serial numbers, and will provide a Return Material Authorization (RMA) number. The center will also ask for the name of the process material to which the product was last exposed.

Mishandling products exposed to a hazardous substance may result in death or serious injury. If the product being returned was exposed to a hazardous substance as defined by OSHA, a copy of the required Material Safety Data Sheet (MSDS) for each hazardous substance identified must be included with the returned goods.

The North American Response Center will detail the additional information and procedures necessary to return goods exposed to hazardous substances.

See “Safety Information” on page 4-1 for complete warning information.

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Reference Manual 00809-0100-4793, Rev CA

August 2004 Rosemount 8742C

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Page 13: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual 00809-0100-4793, Rev CA

August 2004 Rosemount 8742C

Section 2 Installation

Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-1

Transmitter Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-2

Pre-Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-2

Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-4

This section covers the steps required to physically install the magnetic flowmeter. Instructions and procedures in this section may require special precautions to ensure the safety of the personnel performing the operations. Please refer to the following safety messages before performing any operation in this section.

SAFETY INFORMATION

Failure to follow these installation guidelines could result in death or serious injury:

Installation and servicing instructions are for use by qualified personnel only. Do not

perform any servicing other than that contained in the operating instructions, unless

qualified. Verify that the operating environment of the flowtube and transmitter is

consistent with the appropriate FM or CSA approval.

Do not connect a Rosemount 8742C to a non-Rosemount flowtube that is located in an

explosive atmosphere.

The flowtube liner is vulnerable to handling damage. Never place anything through the

flowtube for the purpose of lifting or gaining leverage. Liner damage can render the

flowtube useless.

To avoid possible damage to the flowtube liner ends, do not use metallic or

spiral-wound gaskets. If frequent removal is anticipated, take precautions to protect the

liner ends. Short spool pieces attached to the flowtube ends are often used for

protection.

Correct flange bolt tightening is crucial for proper flowtube operation and life. All bolts

must be tightened in the proper sequence to the specified torque limits. Failure to

observe these instructions could result in severe damage to the flowtube lining and

possible flowtube replacement.

www.rosemount.com

Page 14: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual00809-0100-4793, Rev CA

August 2004Rosemount 8742C

TRANSMITTER SYMBOLS

Caution Symbol — Check product documentation for details.

Protective conductor (grounding) terminal.

PRE-INSTALLATION Before installing the Rosemount 8742C Magnetic Flowmeter Transmitter, there are several pre-installation steps that should be completed to make the installation process easier. They include identifying the options and configurations that apply to your application, setting the hardware switches if necessary, and consideration of physical requirements.

The mounting site for the 8742C should provide enough room for secure mounting, easy access to the conduit ports, and full opening of the transmitter covers.

To ensure maximum transmitter life, avoid excessive heat and vibration. Typical problem areas include high-vibration lines with integrally mounted transmitters, warm-climate installations in direct sunlight, and outdoor installations in cold climates. To avoid potential problems, remotely mounted transmitters may be installed in the control room. This protects the electronics from the harsh environment and provides easy access for configuration or service.

The Rosemount 8742C transmitter requires external power regardless of whether it is mounted remotely or integrally to the flowtube. Access to a suitable power source must be ensured.

Identify Options and Configurations

The standard application of the Rosemount 8742C includes a FOUNDATION fieldbus output. Be sure to identify options and configurations that apply to your situation, and keep a list of them nearby for consideration during the installation and configuration procedures.

Hardware Switches The Rosemount 8742C electronics board is equipped with two user-selectable hardware switches. These switches set Simulate Enable and Transmitter Security. The standard configurations for these switches when shipped from the factory are as follows:

Simulate Enable: Off

Transmitter Security: Off

Definitions of these switches and their functions are provided below. The switches are located on the outerboard of the electronics transmitter stack. See Figure 2-1 on page 2-3.

Simulate Enable The simulate enable switch is used in conjunction with the Analog Input (AI) function block. The switch is used to enable flow measurement simulation. The switch is also used as a lock-out feature for the AI function block. To enable the simulate enable feature, the switch must transition form OFF to ON after power is applied to the transmitter, preventing the transmitter from being accidentally left in simulate mode.

Transmitter Security After you configure the transmitter, you may want to protect the configuration data from unwarranted changes. Each transmitter is equipped with a security switch that can be positioned ON to prevent the accidental or deliberate change of configuration data.

2-2

Page 15: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual 00809-0100-4793, Rev CA

August 2004 Rosemount 8742C

Instructions for changing the hardware switches are provided in “Changing Hardware Switch Settings” on page 2-3.

Figure 2-1. Hardware Switches

Changing Hardware Switch Settings

In most cases, it is not necessary to change the setting of the hardware switches. If you need to change the switch settings, complete the steps outlined below:

NOTEThe hardware switches are located on the electronics board and changing their settings requires opening of the electronics housing. If possible, carry out these procedures away from the plant environment in order to protect the electronics.

1. Disconnect power to the transmitter.

2. Unscrew and remove the electronics cover.

3. Identify the location of the switch.

4. Change the setting of the desired switches with a small screwdriver. Refer to Figure 2-1.

5. Screw and tighten the electronics cover.

Rotate Transmitter Housing

The electronics housing can be rotated on the flowtube in 90° increments by loosening the four mounting bolts on the bottom of the housing, rotating the housing, and reinstalling the bolts. Refer to Figure 2-2 on page 2-4. When the housing is returned to its original position, be sure the surface is clean and there is no gap between the housing and the flowtube.

See “Safety Information” on page 2-1 for complete warning information.

Simulate Enable

Transmitter Security

8742-1

002H

01A

2-3

Page 16: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual00809-0100-4793, Rev CA

August 2004Rosemount 8742C

Figure 2-2. Rosemount 8742C Transmitter Dimensional Drawing

WIRING Correct cable preparation is important for a successful installation. The conduit connections needed for installation depend on transmitter location. A conduit run between the flowtube and transmitter is not required if the transmitter is integrally mounted on the flowtube.

Conduit Ports and Connections

Both the flowtube and transmitter junction boxes have ports for ¾-inch NPT conduit connections. These connections should be made in accordance with local or plant electrical codes. Unused ports should be sealed with metal plugs. Housing damage will result if metal plugs are overtightened.

Proper electrical installation is necessary to prevent errors due to electrical noise and interference. Before making any electrical connections to the Rosemount 8742C, consider the following standards and be sure to have proper power supply, conduit, and other accessories. Shielded cable must be used for best results in electrically noisy environments.

Conduit Connections The transmitter has ports for ¾–inch NPT conduit connections. If the port is not being used, conduit seals should to be installed. In some cases, conduits may also require drainage if moisture could build up in the line.

5.10

(130)

6.48 (165)

3.07

(78)

8.81

(224)

3.43

(87)

3/4”-14 NPT Electrical

Conduit Connections

(2 places)

3/4”-14 NPT

Flowtube Conduit

Connections

(2 places)

7.49 (190)

1.94

(49)

3.00

(76)

LOI Cover

10.5

(267)

11.02

(280)

2-4

Page 17: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual 00809-0100-4793, Rev CA

August 2004 Rosemount 8742C

Conduit Cables Run the appropriate size cable through the conduit connections in your magnetic flowmeter system. Run the power cable from the power source to the transmitter. Run the coil drive and electrode cables between the flowmeter and transmitter.

Prepare the ends of the coil drive and electrode cables as shown in Figure 2-3. Limit the unshielded wire length to 1-inch on both the electrode and coil drive cables.

NOTEExcessive lead length or failure to connect cable shields can create electrical noise resulting in unstable meter readings.

Figure 2-3. Cable Preparation Detail

Transmitter Coil Input The Rosemount 8742C Magnetic Flowmeter Transmitter is a four-wire device. This wiring section covers supplying power to the flowtube coils through the transmitter. The transmitter coil input power sends a pulsed DC frequency to the flowtube.

Wire the transmitter according to local electrical requirements. Ground the transmitter cage via the threaded conduit connection. For ac power applications, connect ac Neutral to terminal N and connect ac Line to terminal L1. For dc power applications, properly connect the positive and negative terminals. Units powered by 15-50 V dc power supply may draw up to 1 amp of current. In addition, follow the supply wire and disconnect requirements below:

1.00(26)

NOTEDimensions are in inches (millimeters).Cable Shield

8705-0041B

Power Supply (Volts)

1.0

0.75

0.5

0.25

015 5020 30 40

I = 10/VI = Supply current requirement (Amps)V = Power supply voltage (Volts)

Su

pp

ly C

urr

en

t (A

mp

s)

2-5

Page 18: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual00809-0100-4793, Rev CA

August 2004Rosemount 8742C

Supply Wire Requirements

Use 12 to 18 AWG wire rated for the proper temperature application. For connections in ambient temperatures above 140 °F (60 °C), use a wire rated for 176 °F (80 °C). For ambients greater than 176 °F (80 °C), use a wire rated for 230 °F (110 °C).

Disconnects

Connect the device through an external disconnect or circuit breaker. Clearly label the disconnect or circuit breaker and locate it near the transmitter and per local electrical control.

Installation Category The installation category for the Rosemount 8742C is (Overvoltage) Category II.

Overcurrent Protection The Rosemount 8742C Flowmeter Transmitter requires overcurrent protection of the supply lines. Maximum ratings of overcurrent devices are as follows:

Transmitter Communication Input

The FOUNDATION fieldbus communication requires a minimum of 9 V dc and a maximum of 32 V dc at the transmitter communication terminals.

NOTES

• Do not exceed 32 V dc at the transmitter communication terminals.

• Do not apply ac line voltage to the transmitter communication terminals.

Improper supply voltage can damage the transmitter.

Power Conditioning Each fieldbus power supply requires a power conditioner to decouple the power supply output from the fieldbus wiring segment.

Field Wiring Power independent of the coil power supply must be supplied for FOUNDATION fieldbus communications. Use shielded, twisted pair for best results. For new installations or to get maximum performance, twisted pair cable designed especially for fieldbus should be used. Table 2-1 details cable characteristics and ideal specifications.

Table 2-1. Ideal Cable Specificationsfor Fieldbus Wiring

Power System Fuse Rating Manufacturer

110 V ac 250 V; 1 Amp, Quick Acting Bussman AGCI or Equivalent

220 V ac 250 V; 0.5 Amp, Quick Acting Bussman AGCI or Equivalent

See “Safety Messages” on page 2-1 for complete warning information.

Characteristic Ideal Specification

Impedance 100 Ohms ± 20% at 31.25 kHz

Wire Size 18 AWG (0,8 mm2)

Shield Coverage 90%

Attenuation 3 db/km

Capacitive Unbalance 2 nF/km

2-6

Page 19: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual 00809-0100-4793, Rev CA

August 2004 Rosemount 8742C

NOTEThe number of devices on a fieldbus segment is limited by the power supply voltage, the resistance of the cable, and the amount of current drawn by each device.

Transmitter Wiring Connection

To make the transmitter communication wiring connection, remove the end cover on the electronics housing. Connect the power leads to the positive (+) and negative (–) fieldbus communication terminals. The communication terminals are polarity insensitive: the polarity of the dc power leads does not matter when connecting to the power terminals.

When wiring to screw terminals, crimped lugs are recommended. Tighten the terminals to ensure adequate contact.

Both transmitter covers must be fully engaged to meet explosion proof requirements. Do not remove the transmitter covers in an explosive atmosphere when the transmitter is powered(1).

Figure 2-4. Rosemount 8742C Transmitter Field Wiring

(1) Pending final approval.

8742

-874

2_01

A

Integrated Power

Conditioner and Filter Terminators

6234 ft (1900 m) max(depending upon cable

Fieldbus Segment

(Sp

ur)

(Trunk)

(The power supply, filter, first terminator, and configuration tool are typically located in the control room.)

*Intrinsically safe installations may allow fewer devices per I.S. barrier.

Power Supply

FOUNDATION Fieldbus

Configuration Tool

(Sp

ur)

Devices 1 through 11*

2-7

Page 20: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual00809-0100-4793, Rev CA

August 2004Rosemount 8742C

Figure 2-5. Power Connections

Transmitter to Flowtube Wiring

Flanged and wafer flowtubes have two conduit ports as shown in Figures 3-13, 3-14, 3-15, and 3-16. Either one may be used for both the coil drive and electrode cables. Use the stainless steel plug that is provided to seal the unused conduit port.

A single dedicated conduit run for the coil drive and electrode cables is needed between a flowtube and a remote transmitter. Bundled cables in a single conduit are likely to create interference and noise problems in your system. Use one set of cables per conduit run. See Figure 2-6 for proper conduit installation diagram and Table 2-2 for recommended cable. For integral and remote wiring diagrams refer to Figure 2-7 and Figure 2-8.

Figure 2-6. Conduit Preparation

8742

-100

2F01

A

Input Power 90–250 V ac

Fieldbus Outputs

Grounding Lugs

Wrong Correct

Coil Drive and

Electrode Cables

Power

Outputs

Power

Outputs

Power Power

OutputsOutputs

Coil Drive and Electrode

Cables

2-8

Page 21: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual 00809-0100-4793, Rev CA

August 2004 Rosemount 8742C

Table 2-2. Cable Requirements

Remote transmitter installations require equal lengths of signal and coil drive cables. Integrally mounted transmitters are factory wired and do not require interconnecting cables.

Lengths from 5 to 1,000 feet (1.5 to 300 meters) may be specified, and will be shipped with the flowtube.

Flowtube to Remote Mount Transmitter Connections

Connect coil drive and electrode cables as shown in Figure 2-7.

Do not connect ac power to the flowtube or to terminals 1 and 2 of the transmitter, or replacement of the electronics board will be necessary.

Figure 2-7. Wiring Diagram

Description Part Number

Signal Cable (20 AWG) Belden 8762, Alpha 2411 equivalent 08712-0061-0001

Coil Drive Cable (14 AWG) Belden 8720, Alpha 2442 equivalent 08712-0060-0001

Combination Signal and Coil Drive Cable (18 AWG)(1)

Belden 9368 equivalent

(1) Combination signal and coil drive cable is not recommended for high-signal magmeter system. For remote mount installations, combination signal and coil drive cable should be limited to less than 100 ft. (30 m).

08712-0750-0001

8742

b_07

a

2-9

Page 22: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual00809-0100-4793, Rev CA

August 2004Rosemount 8742C

Table 2-3. Flowtube to Remote Mount Transmitter

Flowtube to Integral Mount Transmitter Connections

Connect coil drive and electrode cables as shown in Figure 2-8.

Do not connect ac power to the flowtube or to terminals 1 and 2 of the transmitter, or replacement of the electronics board will be necessary.

Figure 2-8. Wiring Diagram to Rosemount 8732C/8742C Transmitter

Table 2-4. Flowtube to Integral Mount Transmitter

Rosemount 8712D/H Transmitters Rosemount 8705/8707/8711 Flowtubes

1 1

2 2

17 17

18 18

19 19

Electronics Board

8732-8732B01A

Rosemount 8732C/8742C Rosemount 8705/8711 Flowtubes

1 1

2 2

17 17

18 18

19 19

2-10

Page 23: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual 00809-0100-4793, Rev CA

August 2004 Rosemount 8742C

Section 3 Flowtube Installation

Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3-1

Flowtube Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3-3

Flowtube Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3-4

Installation (Flanged Flowtube) . . . . . . . . . . . . . . . . . . . . . page 3-7

Installation (Wafer Flowtube) . . . . . . . . . . . . . . . . . . . . . . . page 3-10

Installation (Sanitary Flowtube) . . . . . . . . . . . . . . . . . . . . . page 3-12

Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3-12

Process Leak Protection (Optional) . . . . . . . . . . . . . . . . . page 3-15

This section covers the steps required to physically install the magnetic flowtube. For electrical connections and cabling see Section 2: Installation. Instructions and procedures in this section may require special precautions to ensure the safety of the personnel performing the operations. Please refer to the following safety messages before performing any operation in this section.

SAFETY MESSAGES This symbol is used throughout this manual to indicate that special attention to warning information is required.

Failure to follow these installation guidelines could result in death or serious injury:

Installation and servicing instructions are for use by qualified personnel only. Do not perform

any servicing other than that contained in the operating instructions, unless qualified. Verify

that the operating environment of the flowtube and transmitter is consistent with the

appropriate hazardous area approval.

Do not connect a Rosemount 8742C to a non-Rosemount flowtube that is located in an

explosive atmosphere.

www.rosemount.com

Page 24: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual00809-0100-4793, Rev CA

August 2004Rosemount 8742C

Explosions could result in death or serious injury:

Installation of this transmitter in an explosive environment must be in accordance with the

appropriate local, national, and international standards, codes, and practices. Please review

the approvals section of the 8742C reference manual for any restrictions associated with a

safe installation.

Before connecting a HART-based communicator in an explosive atmosphere, make sure

the instruments in the loop are installed in accordance with intrinsically safe or

non-incendive field wiring practices.

Electrical shock can result in death or serious injury

Avoid contact with the leads and terminals. High voltage that may be present on leads can

cause electrical shock.

The flowtube liner is vulnerable to handling damage. Never place anything through the

flowtube for the purpose of lifting or gaining leverage. Liner damage can render the flowtube

useless.

To avoid possible damage to the flowtube liner ends, do not use metallic or spiral-wound

gaskets. If frequent removal is anticipated, take precautions to protect the liner ends. Short

spool pieces attached to the flowtube ends are often used for protection.

Correct flange bolt tightening is crucial for proper flowtube operation and life. All bolts must

be tightened in the proper sequence to the specified torque limits. Failure to observe these

instructions could result in severe damage to the flowtube lining and possible flowtube

replacement.

3-2

Page 25: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual 00809-0100-4793, Rev CA

August 2004 Rosemount 8742C

FLOWTUBE HANDLING Handle all parts carefully to prevent damage. Whenever possible, transport the system to the installation site in the original shipping containers. Teflon®-lined flowtubes are shipped with end covers that protect it from both mechanical damage and normal unrestrained distortion. Remove the end covers just before installation.

Flanged 6- through 36-inch flowtubes come with a lifting lug on each flange. The lifting lugs make the flowtube easier to handle when it is transported and lowered into place at the installation site.

Flanged ½- to 4-inch flowtubes do not have lugs. They must be supported with a lifting sling on each side of the housing.

Figure 3-1 shows flowtubes correctly supported for handling and installation. Notice the plywood end pieces are still in place to protect the flowtube liner during transportation.

Figure 3-1. Rosemount 8705 Flowtube Support for Handling

See ”Safety Messages” on pages 3-1 and 3-2 for complete warning information.

½- through 4-Inch Flowtubes

6-Inch and Larger Flowtubes

8732-0

281B

02A

B, C

02A

B

3-3

Page 26: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual00809-0100-4793, Rev CA

August 2004Rosemount 8742C

FLOWTUBE MOUNTING Physical mounting of a flowtube is similar to installing a typical section of pipe. Conventional tools, equipment, and accessories (bolts, gaskets, and grounding hardware) are required.

Upstream/DownstreamPiping

To ensure specification accuracy over widely varying process conditions, install the flowtube a minimum of five straight pipe diameters upstream and two pipe diameters downstream from the electrode plane (see Figure 3-2).

Figure 3-2. Upstream and Downstream Straight Pipe Diameters

Flowtube Orientation The flowtube should be installed in a position that ensures the flowtube remains full during operation. Figures 3-3, 3-4, and 3-5 show the proper flowtube orientation for the most common installations. The following orientations ensure that the electrodes are in the optimum plane to minimize the effects of entrapped gas.

Vertical installation allows upward process fluid flow and is generally preferred. Upward flow keeps the cross-sectional area full, regardless of flow rate. Orientation of the electrode plane is unimportant in vertical installations. As illustrated in Figures 3-3 and 3-4, avoid downward flows where back pressure does not ensure that the flowtube remains full at all times.

Figure 3-3. Vertical Flowtube Orientation

FLOW

5 Pipe Diameters 2 Pipe Diameters

8732-0

281G

02A

FLOW

FLOWAB

8735-0

005A

01A

B, 0005A

01B

B

3-4

Page 27: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual 00809-0100-4793, Rev CA

August 2004 Rosemount 8742C

Figure 3-4. Incline or Decline Orientation

Horizontal installation should be restricted to low piping sections that are normally full. Orient the electrode plane to within 45 degrees of horizontal in horizontal installations. A deviation of more than 45 degrees of horizontal would place an electrode at or near the top of the flowtube thereby making it more susceptible to insulation by air or entrapped gas at the top of the flowtube.

Figure 3-5. Horizontal Flowtube Orientation

The electrodes in the Rosemount 8711 are properly oriented when the top of the flowtube is either vertical or horizontal, as shown in Figure 3-6. Avoid any mounting orientation that positions the top of the flowtube at 45° from the vertical or horizontal position.

FLOW

FLOWAB

8732-0

005A

01E

B, 0005A

01F

B

FLOW

87

32

-00

05

A0

1C

3-5

Page 28: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual00809-0100-4793, Rev CA

August 2004Rosemount 8742C

Figure 3-6. Rosemount 8711 Mounting Position

Flow Direction The flowtube should be mounted so that the FORWARD end of the flow arrow, shown on the flowtube identification tag, points in the direction of flow through the tube (see Figure 3-7).

Figure 3-7. Flow Direction

8711-8

711-E

01A

B, 8711

-8711-F

01A

45° Electrode Plane

45° Electrode Plane

FLOW

8712-0

281H

02F

D

3-6

Page 29: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual 00809-0100-4793, Rev CA

August 2004 Rosemount 8742C

INSTALLATION (FLANGED FLOWTUBE)

The following section should be used as a guide in the installation of the flange-type Rosemount 8705 and Rosemount 8707 High-Signal Flowtubes. Refer to page 3-10 for installation of the wafer-type Rosemount 8711 Flowtube.

Gaskets The flowtube requires a gasket at each of its connections to adjacent devices or piping. The gasket material selected must be compatible with the process fluid and operating conditions. Metallic or spiral-wound gaskets can damage the liner. If the gaskets will be removed frequently, protect the liner ends. All other applications (including flowtubes with lining protectors or a grounding electrode) require only one gasket on each end connection, as shown in Figure 3-8. If grounding rings are used, gaskets are required on each side of the grounding ring, as shown in Figure 3-9.

Figure 3-8. Gasket Placement

Figure 3-9. Gasket Placement with Non-attached Grounding Rings

Flange Bolts Suggested torque values by flowtube line size and liner type are listed in Table 3-1 on page 3-8 for ASME B16.5 (ANSI) flanges and Table 3-2 and Table 3-3 for DIN flanges. Consult the factory for other flange ratings. Tighten flange bolts in the incremental sequence as shown in Figure 3-10. See Table 3-1 and Table 3-2 for bolt sizes and hole diameters.

See ”Safety Messages” on pages 3-1 and 3-2 for complete warning information.

Gasket (Supplied by user) 8705-0

040E

Gasket (Supplied by user)Grounding Ring

Gasket (Supplied by user)

8705

-003

8D

3-7

Page 30: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual00809-0100-4793, Rev CA

August 2004Rosemount 8742C

NOTEDo not bolt one side at a time. Tighten each side simultaneously. Example: 1. Snug left2. Snug right3. Tighten left4. Tighten rightDo not snug and tighten left and then snug and tighten right. Failure to do so will result in liner damage.

Always check for leaks at the flanges after tightening the flange bolts. Failure to use the correct flange bolt tightening methods can result in severe damage. All flowtubes require a second torquing twenty-four hours after initial flange bolt tightening.

Table 3-1. Flange Bolt Torque Specifications for Rosemount 8705 and 8707 High-Signal Flowtubes

Teflon/Tefzel liner Polyurethane liner

Size Code Line Size

Class 150

(pound-feet)

Class 300

(pound-feet)

Class 150

(pound-feet)

Class 300

(pound-feet)

005 1/2-inch (15 mm) 8 8 — —

010 1 inch (25 mm) 8 12 — —

015 11/2 inch (40 mm) 13 25 7 18

020 2 inch (50 mm) 19 17 14 11

030 3 inch (80 mm) 34 35 23 23

040 4 inch (100 mm) 26 50 17 32

060 6 inch (150mm) 45 50 30 37

080 8 inch (200 mm) 60 82 42 55

100 10 inch (250 mm) 55 80 40 70

120 12 inch (300 mm) 65 125 55 105

140 14 inch (350 mm) 85 110 70 95

160 16 inch (400 mm) 85 160 65 140

180 18 inch (450 mm) 120 170 95 150

200 20 inch (500 mm) 110 175 90 150

240 24 inch (600 mm) 165 280 140 250

300 30 inch (750 mm) 195 415 165 375

360 36 inch (900 mm) 280 575 245 525

See ”Safety Messages” on pages 3-1 and 3-2 for complete warning information.

3-8

Page 31: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual 00809-0100-4793, Rev CA

August 2004 Rosemount 8742C

Figure 3-10. Flange Bolt Torquing Sequence

Table 3-2. Flange Bolt Torque and Bolt Load Specifications for Rosemount 8705

Teflon/Tefzel liner

Size

Code

PN10 PN 16 PN 25 PN 40

Line Size (Newton-meter) (Newton) (Newton-meter) (Newton) (Newton-meter) (Newton) (Newton-meter) (Newton)

005 1/2-inch (15 mm) 7 3209 7 3809 7 3809 7 4173

010 1 inch (25 mm) 13 6983 13 6983 13 6983 13 8816

015 11/2 inch (40 mm) 24 9983 24 9983 24 9983 24 13010

020 2 inch (50 mm) 25 10420 25 10420 25 10420 25 14457

030 3 inch (80 mm) 14 5935 14 5935 18 7612 18 12264

040 4 inch (100 mm) 17 7038 17 7038 30 9944 30 16021

060 6 inch (150mm) 23 7522 32 10587 60 16571 60 26698

080 8 inch (200 mm) 35 11516 35 11694 66 18304 66 36263

100 10 inch (250 mm) 31 10406 59 16506 105 25835 105 48041

120 12 inch (300 mm) 43 14439 82 22903 109 26886 109 51614

140 14 inch (350 mm) 42 13927 80 22091 156 34578 156 73825

160 16 inch (400 mm) 65 18189 117 28851 224 45158 224 99501

180 18 inch (450 mm) 56 15431 99 24477 — — — 67953

200 20 inch (500 mm) 66 18342 131 29094 225 45538 225 73367

240 24 inch (600 mm) 104 25754 202 40850 345 63940 345 103014

4-Bolt 8-Bolt

12-Bolt 14-Bolt

20-Bolt

Torque the flange bolts in increments according to

the above numerical sequence.

8701-0

870G

02A

3-9

Page 32: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual00809-0100-4793, Rev CA

August 2004Rosemount 8742C

INSTALLATION (WAFER FLOWTUBE)

The following section should be used as a guide in the installation of the Rosemount 8711 Flowtube. Refer to page 3-7 for installation of the flange-type Rosemount 8705 and 8707 High-Signal flowtube.

Gaskets The flowtube requires a gasket at each of its connections to adjacent devices or piping. The gasket material selected must be compatible with the process fluid and operating conditions. Metallic or spiral-wound gaskets can damage the liner. If the gaskets will be removed frequently, protect the liner ends. If grounding rings are used, a gasket is required on each side of the grounding ring.

Alignment and Bolting 1. On 11/2 - through 8-inch (40 through 200 mm) line sizes, place centering rings over each end of the flowtube. The smaller line sizes, 0.15- through 1-inch (4 through 25 mm), do not require centering rings.

2. Insert studs for the bottom side of the flowtube between the pipe flanges. Stud specifications are listed in Table 3-4. Using carbon steel bolts on smaller line sizes, 0.15- through 1-inch (4 through 25 mm), rather than the required stainless steel bolts, will degrade performance.

Table 3-3. Flange Bolt Torque and Bolt Load Specifications for Rosemount 8705

Size

Code Line Size

Polyurethane Liner

PN 10 PN 16 PN 25 PN 40

(Newton-meter) (Newton) (Newton-meter) (Newton) (Newton-meter) (Newton) (Newton-meter) (Newton)

005 1/2-inch (15 mm) 1 521 1 826 2 1293 6 3333

010 1 inch (25 mm) 2 1191 3 1890 5 2958 10 5555

015 11/2 inch (40 mm) 5 1960 7 3109 12 4867 20 8332

020 2 inch (50 mm) 6 2535 10 4021 15 6294 26 10831

030 3 inch (80 mm) 5 2246 9 3563 13 5577 24 19998

040 4 inch (100 mm) 7 3033 12 4812 23 7531 35 11665

060 6 inch (150mm) 16 5311 25 8425 47 13186 75 20829

080 8 inch (200 mm) 27 8971 28 9487 53 14849 100 24687

100 10 inch (250 mm) 26 8637 49 13700 87 21443 155 34547

120 12 inch (300 mm) 36 12117 69 19220 91 22563 165 36660

140 14 inch (350 mm) 35 11693 67 18547 131 29030 235 47466

160 16 inch (400 mm) 55 15393 99 24417 189 38218 335 62026

200 20 inch (500 mm) 58 15989 114 25361 197 39696 375 64091

240 24 inch (600 mm) 92 22699 178 36006 304 56357 615 91094

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3. Place the flowtube between the flanges. Make sure that the centering rings are properly placed in the studs. The studs should be aligned with the markings on the rings that correspond to the flange you are using.

4. Insert the remaining studs, washers, and nuts.

5. Tighten to the torque specifications shown in Table 3-5. Do not overtighten the bolts or the liner may be damaged.

NOTEOn the 4- and 6-inch PN 10–16, insert the flowtube with rings first and then insert the studs. The slots on this ring scenario are located on the inside of the ring.

Figure 3-11. Gasket Placement with Centering Rings

Flange Bolts Flowtube sizes and torque values for both Class 150 and Class 300 flanges are listed in Table 3-5. Tighten flange bolts in the incremental sequence, shown in Figure 3-10.

Always check for leaks at the flanges after tightening the flange bolts. All flowtubes require a second torquing 24 hours after initial flange bolt tightening.

Table 3-4. Stud Specifications

Nominal Flowtube Size Stud Specifications

0.15 – 1 inch (4 – 25 mm) 316 SST ASTM A193, Grade B8M

Class 1 threaded mounted studs

11/2 – 8 inch (40 – 200 mm) CS, ASTM A193, Grade B7, threaded mounting studs

Customer-supplied Gasket

FLOW

8732-0002A1A

Installation, Studs Nuts and Washers

Centering Rings

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INSTALLATION (SANITARY FLOWTUBE)

Gaskets The flowtube requires a gasket at each of its connections to adjacent devices or piping. The gasket material selected must be compatible with the process fluid and operating conditions. Gaskets are supplied with all Rosemount 8721 Sanitary flowtubes except when the process connection is an IDF sanitary screw type.

Alignment and Bolting Standard plant practices should be followed when installing a magmeter with sanitary fittings. Unique torque values and bolting techniques are not required.

Figure 3-12. Rosemount 8721 Sanitary Installation

GROUNDING Process grounding the flowtube is one the most important details of flowtube installation. Proper process grounding ensures that the transmitter amplifier is referenced to the process. This creates the lowest noise environment for the transmitter to make a stable reading. Use Table 3-6 to determine which grounding option to follow for proper installation.

Table 3-5. Flange bolt Torque Specifications of Rosemount 8711 Flowtubes

Size Code Line Size Pound-feet Newton-meter

15F 0.15 inch (4 mm) 5 6.8

30F 0.30 inch (8 mm) 5 6.8

005 1/2-inch (15 mm) 5 6.8

010 1 inch (25 mm) 10 13.6

015 11/2 inch (40 mm) 15 20.5

020 2 inch (50 mm) 25 34.1

030 3 inch (80 mm) 40 54.6

040 4 inch (100 mm) 30 40.1

060 6 inch (150 mm) 50 68.2

080 8 inch (200 mm) 70 81.9

User supplied clamp

User supplied gasket8721_A_06.EPS

If ordered manufacturer supplied clamp and gasket.

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NOTEConsult factory for installations requiring cathodic protection or situations where there are high currents or high potential in the process.

The flowtube case should always be earth grounded in accordance with national and local electrical codes. Failure to do so may impair the protection provided by the equipment. The most effective grounding method is direct connection from the flowtube to earth ground with minimal impedance.

The Internal Ground Connection (Protective Ground Connection) located in side the junction box is the Internal Ground Connection screw. This screw is identified by the ground symbol:

Figure 3-13. No Grounding Options or Grounding Electrode in Lined Pipe

Table 3-6. Grounding Installation

Grounding Options

Type of Pipe No Grounding Options Grounding Rings Grounding Electrodes Lining Protectors

Conductive Unlined Pipe See Figure 3-13 Not Required Not Required See Figure 3-14

Conductive Lined Pipe Insufficient Grounding See Figure 3-14 See Figure 3-13 See Figure 3-14

Non-Conductive Pipe Insufficient Grounding See Figure 3-15 See Figure 3-16 See Figure 3-15

EarthGround

8705-0040C

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Figure 3-14. Grounding with Grounding Rings or Lining Protectors

Figure 3-15. Grounding with Grounding Rings or Lining Protectors

EarthGround

Grounding Rings or Lining Protectors 8

705-038C

Earth Ground

8711-0360A01B

Grounding Rings

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Figure 3-16. Grounding with Grounding Electrodes

PROCESS LEAK PROTECTION (OPTIONAL)

The Rosemount 8705 Flowtube housing is fabricated from carbon steel to perform two separate functions. First, it provides shielding for the flowtube magnetics so that external disturbances cannot interfere with the magnetic field and thus affect the flow measurement. Second, it provides the physical protection to the coils and other internal components from contamination and physical damage that might occur in an industrial environment. The housing is completely welded and gasket-free.

The three housing configurations are identified by the W0, W1, or W3 in the model number option code when ordering. Below are brief descriptions of each housing configuration, which are followed by a more detailed overview.

• Code W0 — sealed, welded coil housing (standard configuration)

• Code W1 — sealed, welded coil housing with a relief valve capable of venting fugitive emissions to a safe location (additional plumbing from the flowtube to a safe area, installed by the user, is required to vent properly)

• Code W3 — sealed, welded coil housing with separate electrode compartments capable of venting fugitive emissions (additional plumbing from the flowtube to a safe area, installed by the user, is required to vent properly)

Earth Ground

8711-0360A01A

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Standard Housing Configuration

The standard housing configuration is identified by a code W0 in the model number. This configuration does not provide separate electrode compartments with external electrode access. In the event of a process leak, these models will not protect the coils or other sensitive areas around the flowtube from exposure to the pressure fluid (Figure 3-17).

Figure 3-17. Standard Housing — Configuration Sealed Welded Housing (Option Code W0)

Relief Valves The first optional configuration, identified by the W1 in the model number option code, uses a completely welded coil housing. This configuration does not provide separate electrode compartments with external electrode access. This optional housing configuration provides a relief valve in the housing to prevent possible overpressuring caused by damage to the lining or other situations that might allow process pressure to enter the housing. The relief valve will vent when the pressure inside the flowtube housing exceeds 5 psi. Additional piping (provided by the user) may be connected to this relief valve to drain any process leakage to safe containment (see Figure 3-18).

Figure 3-18. Coil-Housing Configuration — Standard Welded Housing With Relief Valve (Option Code W1)

¾–14 NPT Conduit Connection(no relief valve)

8705-1002A05D

Optional:Use drain port to

plumb to a safe area (Supplied by user)

¾–14 NPT Conduit Connection

¼'' NPT – 5 psi Pressure Relief Valve

8705-0021A05B

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Process Leak Containment

The second optional configuration, identified as option code W3 in the model number, divides the coil housing into three compartments: one for each electrode and one for the coils. Should a damaged liner or electrode fault allow process fluid to migrate behind the electrode seals, the fluid is contained in the electrode compartment. The sealed electrode compartment prevents the process fluid from entering the coil compartment where it would damage the coils and other internal components.

The electrode compartments are designed to contain the process fluid at full line pressure. An o-ring sealed cover provides access to each of the electrode compartments from outside the flowtube; drainports are provided in each cover for the removal of fluid.

NOTEThe electrode compartment could contain full line pressure and it must be depressurized before the cover is removed.

Figure 3-19. Housing Configuration — Sealed Electrode Compartment (Option Code W3)

If necessary, capture any process fluid leakage, connect the appropriate piping to the drainports, and provide for proper disposal (see Figure 3-19).

Fused Glass Seal

Sealed Electrode Compartment

1/2 - 27 NPT

O-Ring Seal

Optional:Use drain port to

plumb to a safe area (Supplied by user)Grounding Electrode Port

8705-0007ADGB

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Section 4 Configuration

Quick Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4-2

Assigning Device Tag and Node Address . . . . . . . . . . . . page 4-2

AI Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4-3

Arithmetic Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4-3

Integrator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4-3

PID Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4-4

Configuring Links and Scheduling Block Execution . . . page 4-5

Resource Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4-8

This section covers basic operation, software functionality, and basic configuration procedures for the Rosemount 8742C Magnetic Flowmeter Transmitter with FOUNDATION

™ fieldbus. For more information about the FOUNDATION fieldbus technology and the function blocks used in the transmitter, refer to Appendix C: Resource Block, Appendix D: Transducer Block, and Appendix E: Field-Removable Electrodes.

Calibration Rosemount flowtubes are wet calibrated at the factory. They do not need further calibration during installation.

Figure 4-1 illustrates how the flow signal is channeled through the transmitter.

Figure 4-1. Functional Block Diagram for the Rosemount 8742C Flowmeter with FOUNDATION fieldbus

Transducer Block• Damping• Diagnostics• Engineering Units

Function Blocks• AI• PID• Integrator• ArithmeticFOUNDATION fieldbus

Compliant Communications

Stack

Input-to-Output Galvanic Isolation

Analog-to-Digital Signal Conversion

Resource Blocks• Physical Device

Information

8732-8732_01A

www.rosemount.com

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Each FOUNDATION fieldbus configuration tool or host device has a different way of displaying and performing configurations. Some will use Device Descriptions (DD) and DD Methods to make configuring and displaying data consistent across host platforms. There is no requirement that a configuration tool or host support these features. This section describes how to reconfigure the device manually.

QUICK START-UP Once the magnetic flowmeter system is installed and communication is established, configuration of the transmitter must be completed. The standard transmitter configuration, without Option Code C1, Custom Configuration, is shipped with the following parameters:

Flowtube Calibration Number

A unique flowtube calibration number, imprinted on the flowtube tag, enables any Rosemount flowtube to be used with any Rosemount transmitter without further calibration. Rosemount flow lab tests determine individual flowtube output characteristics. The characteristics are identified by a 16-digit calibration number.

The 16-digit calibration number can be programmed into the Rosemount 8712D/H or 8732C transmitter using the Local Operator Interface (LOI) or the 375 Field Communicator. Refer to the appropriate transmitter product manual for complete instructions. In a FOUNDATION fieldbus environment, the 8742C can be configured using the DeltaV™ configuration tool or another FOUNDATION fieldbus configuration device.

The calibration number is more than a correction factor, or K- factor, for the flowtube. The first five digits represent the low frequency gain. The ninth through thirteenth digits represent the high frequency gain. Both numbers are normalized from an ideal number of 10000. Standard configurations use the low frequency gain, but in noisy applications it may be worthwhile to switch to the higher frequency. An additional transmitter procedure, called Auto Zero, is required to perform at the higher coil drive frequency. The seventh and eighth digits represent the zero offset at both frequencies where the nominal value is 50. Empty pipe functionality is a transmitter feature that is controlled by a parameter in the transducer block. To turn off this feature, see Section 4: Operation and Maintenance, “Learning Empty Pipe” on page 4-5.

ASSIGNING DEVICE TAG AND NODE ADDRESS

The 8742C Magnetic Flowmeter Transmitter is shipped with a blank tag and a temporary address to allow a host to automatically assign an address and a tag. If the tag or address need to be changed, use the features of the configuration tool. The tools do the following:

• Change the tag to a new value.

• Change the address to a new address.

When the device is at a temporary address, only the tag and address can be changed or written to. The resource, transducer, and function blocks are all disabled.

Engineering Units: ft/s

Tube Size: 3-in.

Flowtube Calibration Number: 100000501000000

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AI BLOCK The Analog Input (AI) function block provides the primary interface of the measurement to the control and/or monitoring systems. To properly configure the device, three parameters must be set in order to correctly interface between the AI block and transducer block.

1. The CHANNEL parameter defines which transducer block measurement is used by the AI block. In the 8742C Magnetic Flowmeter Transmitter, only one channel is available: AI1.CHANNEL = 1 (Flow).

2. The second parameter is the XD_SCALE.UNITS_INDX. The default configuration is feet per second (ft/s). Other units are available and listed in Appendix D: Table D-3.

3. Finally, since the flow measurement from the transducer block is in the correct units, L_TYPE is configured as Direct. L_TYPE can be either Direct or Indirect.

NOTERefer to the FOUNDATION fieldbus Block product manual, document 00809-0100-4783, for more details on configuring and troubleshooting the AI Block.

ARITHMETIC BLOCK The Arithmetic function block provides the ability to configure a range extension function for a primary input and applies the nine (9) different arithmetic types as compensation to or augmentation of the range extended input. All operations are selected by parameter and input connection.

The nine (9) arithmetic functions are Flow Compensation Linear, Flow Compensation Square Root, Flow Compensation Approximate, Btu Flow, Traditional Multiply and Divide, Average, Summer, Fourth Order Polynomial, and Simple HTG Compensate Level.

This Arithmetic function block supports mode control (Auto, Manual, and Out of service). There is no standard alarm detection in this block.

NOTERefer to the FOUNDATION fieldbus Block product manual, document 00809-0100-4783, for more details on configuring and troubleshooting the Arithmetic Block.

INTEGRATOR The Integrator (INT) function block integrates one or two variables over time. The block compares the integrated or accumulated value to pre-trip and trip limits and generates discrete output signals when the limits are reached.

The Integrator function block supports mode control, demand reset, a reset counter, and signal status calculation. There is no process alarm detection in the block.

NOTERefer to the FOUNDATION fieldbus Block product manual, document 00809-0100-4783, for more details on configuring and troubleshooting the Integrator Block.

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PID BLOCK The PID function block combines all of the necessary logic to perform proportional/integral/derivative (PID) control. The block supports mode control, signal scaling and limiting, feedforward control, override tracking, alarm limit detection, and signal status propagation.

The block supports two forms of the PID equation: Standard and Series. You can choose the appropriate equation using the FORM parameter. The Standard ISA PID equation is the default selection.

To further customize the block for use in your application, you can configure filtering, feedforward inputs, tracking inputs, setpoint and output limiting, PID equation structures, and block output action.

NOTERefer to the FOUNDATION fieldbus Block product manual, document 00809-0100-4783, for more details on configuring and troubleshooting the PID Block.

Standard Out GAIN e 1 1τrs 1+-----------------

τds

α τds 1+×----------------------------+ +

× F+×=

Series Out GAIN e× 1 1τrs-------

+

×

τds 1+

α τds 1+×----------------------------

+ F+=

Where

GAIN: proportional gain valueτr: integral action time constant (RESET parameter) in secondss: laplace operatorτd: derivative action time constant (RATE parameter)α: fixed smoothing factor of 0.1 applied to RATEF: feedforward control contribution from the feedforward input (FF_VAL parameter)e: error between setpoint and process variable

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CONFIGURING LINKS AND SCHEDULING BLOCK EXECUTION

Without configuring the links between blocks and scheduling the blocks to execute in the proper order, the application will not work correctly. Most hosts and/or configuration tools make this task a simple matter by using a Graphical User Interface (GUI).

Figure 4-2. Measurement Configuration

FBUS_48A

Transducer Block

Flow In

AI Block

Macro Cycle

AI

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Advanced Applications

Figure 4-3. Control Configuration

Transducer Block

AI Block PID Block Analog Output Block (AO)

Flow In Out In Out CAS_IN

BKCAL_OUT

Macro Cycle

AI1

PID

AO

FBUS_47A

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Cascade Control Cascade control applications require two inputs. The configuration is to link the output of one AI block into the PID block in the 8742C transmitter and to link the AI block of a second 8742C transmitter into the PID block of that transmitter. Another set of links between the second PID and the AO block, located in the control valve, is required (see Figure 4-4).

Figure 4-4. Cascade Control Configuration

AO

PID2

PID

AI2

AI1

Macro Cycle

BKCAL_IN

OUT

IN

AIBlock 2 (AI2) from second

8742C Transmitter

OUT

OUTIN INFlowIN

PID Block 2 (PID2) from

second 8742C Transmitter

CAS_IN

PID Block 1 (PID1)

AIBlock 1 (AI1)

TransducerBlock

OUT

BKCAL_INBKCAL_OUT

CAS_IN

AO Block

BKCAL_OUT

FBUS_46A

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RESOURCE BLOCK

FEATURES and FEATURES_SEL

The parameters FEATURES and FEATURE_SEL determine optional behavior of the Rosemount 8742C.

FEATURES

The FEATURES parameter is read only and defines which features are supported by the Rosemount 8742C. Below is a list of the FEATURES the Rosemount 8742C supports.

UNICODE

All configurable string variables in the Rosemount 8742C, except tag names, are octet strings. Either ASCII or Unicode may be used. If the configuration device is generating Unicode octet strings, you must set the Unicode option bit.

REPORTS

The Rosemount 8742C supports alert reports. The Reports option bit must be set in the features bit string to use this feature. If it is not set, the host must poll for alerts.

SOFT W LOCK and HARD W LOCK

Inputs to the security and write lock functions include the hardware security switch, the hardware and software write lock bits of the FEATURE_SEL parameter, the WRITE_LOCK parameter, and the DEFINE_WRITE_LOCK parameter.

The WRITE_LOCK parameter prevents modification of parameters within the device except to clear the WRITE_LOCK parameter. During this time, the block will function normally updating inputs and outputs and executing algorithms. When the WRITE_LOCK condition is cleared, a WRITE_ALM alert is generated with a priority that corresponds to the WRITE_PRI parameter.

The FEATURE_SEL parameter enables the user to select a hardware or software write lock or no write lock capability. To enable the hardware security function, enable the HW_SEL bit in the FEATURE_SEL parameter. When this bit has been enabled the WRITE_LOCK parameter becomes read only and will reflect the state of the hardware switch. In order to enable the software write lock, the SW_SEL bit must be set in the FEATURE_SEL parameter. Once this bit is set, the WRITE_LOCK parameter may be set to “Locked” or “Not Locked.” Once the WRITE_LOCK parameter is set to “Locked” by either the software or the hardware lock, all user requested writes as determined by the DEFINE_WRITE_LOCK parameter shall be rejected.

The DEFINE_WRITE_LOCK parameter allows the user to configure whether the write lock functions (both software and hardware) will control writing to all blocks, or only to the resource and transducer blocks. Internally updated data such as process variables and diagnostics will not be restricted by the security switch.

Table 4-1 displays all possible configurations of the WRITE_LOCK parameter.

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FEATURES_SEL

FEATURES_SEL is used to turn on any of the supported features. The default setting of the Rosemount 8742C does not select any of these features. Choose one of the supported features if any.

MAX_NOTIFY The MAX_NOTIFY parameter value is the maximum number of alert reports that the resource can have sent without getting a confirmation, corresponding to the amount of buffer space available for alert messages. The number can be set lower, to control alert flooding, by adjusting the LIM_NOTIFY parameter value. If LIM_NOTIFY is set to zero, then no alerts are reported.

PlantWeb™ Alarms The Resource Block will act as a coordinator for PlantWeb alarms. There will be three alarm parameters (FAILED_ALARM, MAINT_ALARM, and ADVISE_ALARM) which will contain information regarding some of the device errors which are detected by the transmitter software. There will be a RECOMMENDED_ACTION parameter which will be used to

display the recommended action text for the highest priority alarm. FAILED_ALARM will have the highest priority followed by MAINT_ALARM and ADVISE_ALARM will be the lowest priority.

FAILED_ALARMS

A failure alarm indicates a failure within a device that will make the device or some part of the device non-operational. This implies that the device is in need of repair and must be fixed immediately. There are five parameters associated with FAILED_ALARMS specifically, they are described below.

FAILED_ENABLED

This parameter contains a list of failures in the device which makes the device non-operational that will cause an alarm to be sent. Below is a list of the failures with the highest priority first.

1. Output Board Electronics Failure

2. Sensor Board Electronics Failure

3. Output Board NV Memory Failure

4. Coil Drive Open Circuit Failure

Table 4-1. WRITE_LOCK Parameter

FEATURE_SEL

HW_SEL bit

FEATURE_SEL

SW_SEL bit SECURITY SWITCH WRITE_LOCK

WRITE_LOCK

Read/Write DEFINE_WRITE_LOCK

Write access

to blocks

0 (off) 0 (off) NA 1 (unlocked) Read only NA All

0 (off) 1 (on) NA 1 (unlocked) Read/Write NA All

0 (off) 1 (on) NA 2 (locked) Read/Write Physical Function

Blocks only

0 (off) 1 (on) NA 2 (locked) Read/Write Everything None

1 (on) 0 (off)(1) 0 (unlocked) 1 (unlocked) Read only NA All

1 (on) 0 (off) 1 (locked) 2 (locked) Read only Physical Function

Blocks only

1 (on) 0 (off) 1 (locked) 2 (locked) Read only Everything None

(1) The hardware and software write lock select bits are mutually exclusive and the hardware select has the highest priority. When the HW_SEL bit if set to 1 (on), the SW_SEL bit is automatically set to 0 (off) and is read only.

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FAILED_MASK

This parameter will mask any of the failed conditions listed in FAILED_ENABLED. A bit on means that the condition is masked out from alarming and will not be reported.

FAILED_PRI

Designates the alarming priority of the FAILED_ALM. The default is 0 and the recommended value are between 8 and 15.

FAILED_ACTIVE

This parameter displays which of the alarms is active. Only the alarm with the highest priority will be displayed. This priority is not the same as the FAILED_PRI parameter described above. This priority is hard coded within the device and is not user configurable.

FAILED_ALM

Alarm indicating a failure within a device which makes the device non-operational.

MAINT_ALARMS

A maintenance alarm indicates the device or some part of the device needs maintenance soon. If the condition is ignored, the device will eventually fail. There are five parameters associated with MAINT_ALARMS, they are described below.

MAINT_ENABLED

The MAINT_ENABLED parameter contains a list of conditions indicating the device or some part of the device needs maintenance soon. If the condition is ignored, the device will eventually fail.

Below is a list of the conditions with the highest priority first.

1. Auto Zero Failure

2. NV Writes Deferred

3. Reverse Flow Detected

4. Electronics Trim Failure

5. Empty Pipe

6. PWA Simulate Active

7. PV Range Exceeded

MAINT_MASK

The MAINT_MASK parameter will mask any of the failed conditions listed in MAINT_ENABLED. A bit on means that the condition is masked out from alarming and will not be reported.

MAINT_PRI

MAINT_PRI designates the alarming priority of the MAINT_ALM. The default is 0 and the recommended values is 3 to 7.

MAINT_ACTIVE

The MAINT_ACTIVE parameter displays which of the alarms is active. Only the condition with the highest priority will be displayed. This priority is not the same as the MAINT_PRI parameter described above. This priority is hard coded within the device and is not user configurable.

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MAINT_ALM

An alarm indicating the device needs maintenance soon. If the condition is ignored, the device will eventually fail.

Advisory Alarms

An advisory alarm indicates informative conditions that do not have a direct impact on the device's primary functions There are five parameters associated with ADVISE_ALARMS, they are described below.

ADVISE_ENABLED

The ADVISE_ENABLED parameter contains a list of informative conditions that do not have a direct impact on the device's primary functions. Below is a list of the advisories with the highest priority first.

1. Primary Value Degraded

2. Electrode Signal Fault

3. High Process Noise

4. Grounding/Wiring Fault

ADVISE_MASK

The ADVISE_MASK parameter will mask any of the failed conditions listed in ADVISE_ENABLED. A bit on means the condition is masked out from alarming and will not be reported.

ADVISE_PRI

ADVISE_PRI designates the alarming priority of the ADVISE_ALM. The default is 0 and the recommended values are 1 or 2.

ADVISE_ACTIVE

The ADVISE_ACTIVE parameter displays which of the advisories is active. Only the advisory with the highest priority will be displayed. This priority is not the same as the ADVISE_PRI parameter described above. This priority is hard coded within the device and is not user configurable.

ADVISE_ALM

ADVISE_ALM is an alarm indicating advisory alarms. These conditions do not have a direct impact on the process or device integrity.

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Recommended Actions for PlantWeb Alarms

RECOMMENDED_ACTION

The RECOMMENDED_ACTION parameter displays a text string that will give a recommended course of action to take based on which type and which specific event of the PlantWeb alarms is active.

Table 4-2. RB.RECOMMENDED_ATION

Alarm Type

Failed/Maint/Advise

Active Event

Recommended Action

Text String

NONE None No action required

FAILED

1. Output Board

Electronics Failure

Replace the Fieldbus Electronics Module

Assembly.

2. Sensor Board

Electronics Failure

Cycling power may correct memory problems.

If problem persists, replace board stack.

3. Output Board NV

Memory Failure

Reset the device then download the device

configuration.

4. Coil Drive Open

Circuit Failure

Verify transmitter is working properly with flow

tube simulator and/or verify flow tube

resistance values are valid with multimeter.

MAINTENANCE

1. Auto Zero Failure Re-run the auto zero procedure. This function

is suggested, but not required, when

increasing the coil drive frequency.

2. NV Writes Deferred Wait for deferred data to be saved in next 6hr

period.

3. Reverse Flow

Detected

Verify the flowtube is mounted properly. Verify

terminal block wiring is correct.

4. Electronics Trim

Failure

Re-run the electronics trim procedure with an

8714D calibrator. If failure message still

appears, replace electronics.

5. Empty Pipe If this diagnostic is unexpected, perform

flowtube resistance checks as described in

the manual.

6. PWA Simulate Active Disable simulation to return to process

monitoring and control.

7. PV Range Exceeded Reduce Flow.

ADVISORY

1. Primary Value

Degraded

Reduce Flow.

2. Electrode Signal

Fault

Verify moisture is not in flow tube junction box.

Perform flow tube resistance checks as

described in the manual.

3. High Process Noise Increase the transmitter coil drive frequency.

Verify that the magmeter is grounded properly.

4. Grounding/Wiring

Fault

Check the recommended grounding and

wiring practices as detailed in the product

manual.

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Reference Manual 00809-X0100-4793, Rev CA

August 2004 Rosemount 8742C

Simulation

Simulation replaces the channel value coming from the transducer block for testing purposes.

The following procedure is used to simulate a DI output.To change the output value place the Target Mode of the block to Manual and then change the OUT_D.VALUE to the desired value.

To simulate both the value and status do the following:

1. If the Simulate Switch is in the OFF position, move it to ON. If the Simulate switch is already in the ON position, you must move it to Off an place it back in to the ON position.

NOTEAs a safety measure, the switch must be reset every time power is interrupted to the device in order to enable SIMULATE. This prevents a device that is tested on the bench from getting installed in the process with SIMULATE still active.

2. To change both the OUT_D.VALUE and OUT_D.STATUS of the DI Block, set the TARGET MODE to AUTO.

3. Set SIMULATE_D.ENABLE_DISABLE to ‘Active’.

4. Enter the desired values for SIMULATE_D. SIMULATE_VALUE and SIMULATE_D. SIMULATE_STATUS.

If errors occur when performing the above steps, be sure that the SIMULATE jumper has been reset after powering up the device.

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Reference Manual 00809-0100-4793, Rev CA

August 2004 Rosemount 8742C

Section 5 Operation and Maintenance

Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 5-1

Software Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 5-1

Hardware Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 5-9

This section covers basic operation and maintenance instructions such as configuring empty pipe and other diagnostics, rotating the housing and local display, and performing replacement of some parts. Instructions and procedures in this section may require special precautions to ensure the safety of the personnel performing the operations. Please read the following safety messages before performing any operation described in this section. Refer to these warnings when appropriate throughout this section.

SAFETY INFORMATION

SOFTWARE OPERATION Instructions and procedures listed here are specific to the Rosemount 8742C Transmitter. The examples use Delta V™ as the host system, but other configuration tools can be used by consulting the index numbers in Appendix D: Transducer Block.

Failure to follow these installation guidelines could result in death or serious

injury:

Installation and servicing instructions are for use by qualified personnel only. Do not

perform any servicing other than that contained in the operating instructions, unless

qualified. Verify that the operating environment of the flowtube and transmitter is

consistent with the appropriate FM or CSA approval.

Do not connect a Rosemount 8742C to a non-Rosemount flowtube that is located in an

explosive atmosphere.

www.rosemount.com

Page 54: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual00809-0100-4793, Rev CA

August 2004Rosemount 8742C

Local Display Configuration

The local display can be configured in four languages: English, Spanish, French, and German. The display language can be changed by changing the transducer block parameter, DISPLAY_MODE. Table 5-1 lists the phrase, along with the text shown on the display.

Calibration Pulsed DC magnetic flowmeters do not typically require periodic calibration. There are no moving parts in a magnetic flowmeter flowtube or transmitter. However, it is possible to do an electronics trim on the transmitter. If a magmeter is not performing properly, refer to Section 5: Troubleshooting.

Electronics Trim Electronics trim is the function by which the factory calibrates the transmitter. This procedure is rarely needed by customers. It is only necessary if you suspect the Rosemount 8742C is no longer accurate. A Rosemount 8714 Calibration Standard is required to complete an electronics trim. Attempting an electronics trim with out a Rosemount 8714 may result in an inaccurate transmitter or an error message. Electronics trim must be performed only with the coil drive mode set to 5 Hz and with a nominal flowtube calibration number stored in the memory.

NOTEAttempting an electronics trim without a Rosemount 8714D may result in an inaccurate transmitter, or a “TRIM FAILURE” message may appear. If this message occurs, no values were changed in the transmitter. Simply power down the Rosemount 8742C to clear the message.

To simulate a nominal flowtube with the Rosemount 8714D, you must change the following four parameters in the Rosemount 8742:

Table 5-1. Local Display screens for Rosemount 8742C Magnetic Flowmeter Transmitter with FOUNDATION™

fieldbus

Definition English Spanish French German

Model number of transmitter 8742C Magmeter Caud. Mag. 8742C Trans Mag 8742C 8742C MID

Good status, no error messages Status: Good Estado: Bien Measure Bonne Messung OK

Grounding/Wiring Fault detected Grnd Wire Fault Falla Cabl Tierr Défaut Terre Fehler Erde/Verk

High transmitter temperature detected High 8742 Temp Temp 8742 Alta Temp 8742C Haute Hochtemp 8742

High process noise detected Hi Process Noise Ruid Proces Alto Bruits Détectés Proz Rauschen

Empty Pipe detected Empty Pipe Tubo Vacío Tube Vide Décelé Leitung Leer

Electronics Trim Failure detected Trim Failure Falla Ajuste Défaut Trim Trim Fehler

PV status is uncertain Status: Uncertain Estado: Incierto Mesure Douteuse Mesung Unsicher

Auto Zero Trim Failure detected AutoZero Failure Fallo AutoCero Défaut Autozéro AutoNull Fehler

Flow rate is over sensor range Flow > 12 m/s Caudal > 12 m/s Vitesse > 12 m/s Flow Zu Hoch

Transducer block mode is out of service Out of Service Fuera de Servic. BT Hors Service Ausser Betrieb

PV status is bad Status: Bad Estado: Mal Mesure Mauvaise Messung Schlecht

Electrode fault detected Electrode Fault Falla Electrodo Défaut Electrode Elecktrode Fehler

Flow rate is over sensor limit Flow > 13.2 m/s Caudal > 13.2 m/s Vitesse > 13,2 m/s Flow Zu Hoch

Coil drive open circuit detected Coil Drive Open Bobina Abierta Défaut Bobines Spule Defekt

Electronics failure detected Electronics Fail Falla Electrónic Panne Electroniq Elekronikdefekt

Electronics trim is in progress (two lines)(1) Electronic Trim Ajust Electrónic Réglage Electron Elektronik Trim

In Progress En Progreso En Cours Läuft

Auto Zero Trim in progress (two lines)(1) Auto Zero Auto Cero Réglage Autozéro AutoNull

In Progress En Progreso En Cours Läuft

Learn Empty Pipe in progress (two lines)(1) Learn E Pipe Detec. Tubo Vacío Réglage TubeVide Leitung Leer Erk

In Progress En Progreso En Cours Läuft

(1) The “In Progress” string must be a maximum of 14 characters. The 16th character on the 2nd line of the display is reserved for a special character during the trim functions.

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Reference Manual 00809-0100-4793, Rev CA

August 2004 Rosemount 8742C

1. Tube Calibration Number - 1000015010000000

2. Units - ft/s

3. Coil Pulse Mode - 5 Hz

The instructions for changing these parameters are located in the parameter descriptions in this section.

Set the loop to manual, if necessary, before you begin. Complete the following steps:

1. Power down the transmitter.

2. Connect the transmitter to a Rosemount 8714D flowtube simulator.

3. Power up the transmitter with the Rosemount 8714D connected and read the flow rate. The electronics need about a 30-minute warm-up time to stabilize.

4. Initiate an electronics trim through the transducer block. Click on the transducer block, select calibrate, and then select Electronics Trim.

The electronics trim takes about two minutes to complete. No transmitter adjustments are required. A symbol appears in the lower right-hand corner of the local display to indicate the process is running.

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August 2004Rosemount 8742C

Auto Zero Trim The auto zero trim function initializes the transmitter for use with the 37.5 Hz coil drive mode only. Run this function only with the transmitter and flowtube installed in the process. The flowtube must be filled with process fluid at zero flow. Before running the auto zero function, be sure the coil drive mode is set to 37.5 Hz.

Set the loop to manual if necessary and begin the auto zero procedure. Click on the transducer block. The transmitter completes the procedure automatically in about two minutes. A symbol appears in the lower right-hand corner of the display to indicate that the procedure is running.

Configuring the Advanced Diagnostics and Empty Pipe

This screen allows the user to selectively turn on/off the magmeter diagnostics. When a diagnostic check is turned off, the user will not be notified via the status pages, or the PV status parameter if the selected condition has been detected. To get to this screen, click on the transducer block properties and then go to the diagnostics tab.

Learning Empty Pipe Empty pipe functionality is very useful for batch applications or a process where the piping often runs empty. The Rosemount 8742C transmitter learns empty pipe functionality by measuring the resistance across the electrodes. The flowtube must be completely full of process fluid when configuring empty pipe. This procedure also describes how to turn on or off the empty pipe functionality.

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1. Right-click on the Transducer400 icon to initiate the empty pipe learning function. This will bring up the Transducer block menu items. From this menu, select Calibrate-Learn Empty Pipe, as shown in the diagram below.

2. The initial screen describes the process to be performed and any configuration requirements. The entire two-minute process will be performed. This is the last opportunity to cancel the opportunity and return to normal status. To start the process, click Next.

3. The transmitter will be put in Out of Service mode. The coil drive will be set to 5 Hz. The learning mode in 5 Hz mode is a 60 second process. A countdown clock is shown in the window. No intervention is required.

4. The transmitter will then automatically change to 37.5 Hz coil drive frequency and repeat the same process as in the 5 Hz coil drive mode.

5. After both sets of data are written to the device, a check is made on both the coil frequency and the mode. If the starting coil frequency was 5 Hz, the method will return it to 5 Hz. Likewise, if the starting mode was not Out of Service, the method will return the device to Auto mode. Clicking Finish from the final screen will exit the method.

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Reference Manual00809-0100-4793, Rev CA

August 2004Rosemount 8742C

Diagnostics The magmeter specific diagnostics appear on the detailed status screen. Click on the Transducer Block, select status, and move over to the detailed status tabs (See Figure 5-1). The advanced diagnostics (High Process Noise, Electrode Signal Fault, and Grounding/Wiring Fault) and empty pipe will not be activated unless the transmitter has been configured to signal these diagnostics. If the diagnostic has been triggered, the button next to the diagnostic will turn red and the bottom line of the local display will display the error message. For applicable diagnostics, a numeric value appears on the right side of the window.

Figure 5-1. Transducer Detailed Status

Diagnostic Information If a diagnostic has been triggered, the Rosemount 8742 transmitter can supply additional information to resolve the issue. By clicking on the question mark in the upper right hand window and then selecting a diagnostic, an informative help screen appears. The first sentence of the help screen describes the symptom. The second sentence describes the probable cause. Corrective actions follow. Transmitters with the optional local display will also show the diagnostic status.

The second line on the local display provides a short description of a triggered diagnostic. If the PV status is uncertain, the error message alternates with the PV on the top line. The probable causes and corrective actions of all the diagnostics are listed in Table 5-2. These messages are available in an AMS™/ Delta V™ environment by clicking on the question mark in the Transducer block and then clicking on a particular diagnostic.

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Table 5-2. Triggered Diagnostics

Symptom Probable Cause Corrective Action

Primary Range Value

Exceed

The process variable (flow rate) is greater than 12 m/s

(40 ft/s).• Lower the process rate.

• Increase the flowtube line sizes.

Sensor High Limit

Exceeded

The process variable (flow rate) is greater than 13.2

m/s (44 ft/s).• Lower the process flow rate.

• Increase the flowtube line size.

Reverse Flow

Detected

The transmitter is measuring a reversed flow signal.

The following actions can be taken if reverse flow is

unexpected.

• Verify flowtube is not installed backwards. Check flow

direction arrow on the flowtube. Confirm the direction of

process flow.

• Confirm the wiring between the flowtube and the

transmitter on the flowtube is not reversed.

Corresponding terminal block numbers in the flowtube

and transmitter must be connected.

• Verify twisted shielded cable is being used.

• Siphon effect or leaky valve may cause reverse flow.

Empty Pipe Detected The flowtube is not full or fluid. The process variable is

zero. The following actions can be taken if empty pipe

detection is unexpected.

• Verify flowtube is full.

• Increase process fluid conductivity above 50

microsiemens/cm.

• Properly connect the wiring between the flowtube and

the transmitter on the flowtube. Corresponding terminal

block numbers in the flowtube and transmitter must be

connected.

• Perform flowtube electrical resistance tests. Confirm the

resistance reading between coil ground (ground symbol)

and coil (1 and 2) is infinity. Confirm the resistance

reading between electrode ground (17) and an electrode

(18 or 19) is greater than 2 kohms and rises. For more

detailed information, consult the flowtube product

manual.

To turn off empty pipe diagnostic, go to the diagnostic screen

in the transducer block properties.

High Process Noise

Detected

The signal to noise ratio is less than 25. • Increase transmitter coil drive frequency to 37.5 Hz and,

if possible, perform Auto Zero function.

• Verify flowtube is electrically connected to the process

with grounding electrode, grounding rings with grounding

straps, or lining protector with grounding straps.

• If possible, redirect chemical additions downstream of

the magmeter.

• Verify process fluid conductivity is above 10

microsiemens/cm.

To turn off high process noise detection, go to the diagnostic

screen in the transducer block properties.

Coil Drive Open

Circuit

Transmitter has detected an open coil circuit condition. • Perform flowtube electrical resistance tests. Confirm the

resistance reading between coil ground (ground symbol)

and coil (1 or 2) is infinity. Confirm the resistance reading

between electrode ground (17) and an electrode (18 or

19) is greater than 2 kohms and rises. For more detailed

information, consult the flowtube product manual.

• Verify transmitter electronics with Rosemount 8714

reference standard. The dial on the 8714 should be set

at 9.1 m/s (30 ft/s). The transmitter should be set up with

the nominal flowtube calibration number

(1000015010000000) and 5 Hz coil drive frequency.

• Properly connect the wiring between the flowtube and

the transmitter on the flowtube. Corresponding terminal

block numbers in the flowtube and transmitter must be

connected.

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Electrode Signal

Fault Detected

The flow signal has been compromised. The process

variable is likely reading less than expected.• Remove any moisture or contamination in the flowtube

terminal block or, if applicable, the sealed electrode

compartments.

WARNING: The electrode compartment may contain line

pressure. Removing the cover before depressurizing may

result in death or serious injury.

• Perform flowtube electrical resistance tests. Confirm the

resistance reading between coil ground (ground symbol)

and coil (1 or 2) is infinity. Confirm the resistance reading

between electrode ground (17) and an electrode (18 or

19) is greater than 2 kohms and rises. For more detailed

information, consult the flowtube product manual.

• Verify flowtube is electrically connected to the process

with grounding electrode, grounding rings with grounding

straps, or lining protector with grounding straps.

• Verify transmitter electronics with Rosemount 8714

reference standard. The dial on the 8714 should be set

at 9.1 m/s (30 ft/s). The transmitter should

(1000015010000000) and 5 Hz coil drive frequency.

• Properly connect the wiring between the flowtube and

the transmitter on the flowtube. Corresponding terminal

block numbers in the flowtube and transmitter must be

connected.

To turn off electrode signal fault detection, go to the

diagnostic screen in the transducer block properties.

Grounding/ Wiring

Fault

The transmitter detected high levels of 50/60 Hz noise

caused by improper wiring or poor process grounding.• Connect ground rings, grounding electrode, lining

protector, or grounding straps. Grounding diagrams are

included in the flowtube product manual.

• verify flowtube is full.

• Verify wiring between flowtube and transmitter is

prepared properly. Shielding should be stripped back

less than 2.5 cm (1 in).

• Use separate shielded twisted pairs for wiring between

flowtube and transmitter.

• Properly connect the wiring between the flowtube and

the transmitter on the flowtube. Corresponding terminal

block numbers in the flowtube and transmitter must be

connected.

To turn off grounding/ wiring diagnostic, go to the diagnostic

screen in the transducer block properties.

Electronics Failure The electronics board stack has failed. • Replace the electronics board stack or complete

transmitter.

Electronics Trim

Failure

The transmitter calibration process has been

interrupted or failed. No internal calibration parameters

have been modified.

• If electronics trim performed inadvertently, cycle

transmitter power to clear message.

• Verify transmitter electronics with Rosemount 8714

reference standard. The dial on the 8714 should be set

at 9.1 m/s (30 ft/s). The transmitter should

(10000015010000000) and 5 Hz coil drive frequency.

Auto Zero Failure The Auto Zero process has been interrupted or failed.

No internal Auto Zero parameters have been modified.• If Auto Zero performed inadvertently, cycle transmitter

power to clear message.

• Repeat Auto Zero process with a full pipe and no flow.

• Verify transmitter electronics with Rosemount 8714

reference standard. The dial on the 8714 should be set

at 9.1 m/s (30 ft/s). The transmitter should

(10000015010000000) and 5 Hz coil drive frequency.

Table 5-2. Triggered Diagnostics

Symptom Probable Cause Corrective Action

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August 2004 Rosemount 8742C

Diagnostic Counter The status tab in the Transducer Block window has a diagnostic counter that counts the number of times the particular diagnostic was detected during the life of the transmitter. The values can not be changed in the field.

HARDWARE MAINTENANCE

The 8742C Magnetic Flowmeter Transmitter has no moving parts and requires a minimum amount of scheduled maintenance. The transmitter features a modular design for easy maintenance. If you suspect a malfunction, check for an external cause before performing the diagnostics presented below.

Rosemount flowtubes do not have any parts that require calibration or maintenance. To confirm the working condition of the flowtube, refer to Section 5: Troubleshooting.

The following procedures will help you disassemble and assemble the 8742C hardware if you have followed the troubleshooting guide earlier in this section of the manual and determined that hardware components need to be replaced.

Replacing the FOUNDATION

™ Fieldbus Electronics Housing

The Rosemount 8742C Magnetic Flowmeter Transmitter electronics housing can be replaced easily when necessary. The procedure is the same for integral or remote mount units. Use the following procedure:

Remove the Electronics Housing

1. Turn off and disconnect electric power to the transmitter.

2. Disconnect the wires and conduit from the housing.

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Figure 5-2. Transmitter Attached to Flowtube Pedestal

3. Use a wrench to loosen the housing from the flowtube pedestal by turning the bolts clockwise (inward).

4. Slowly pull the electronics housing no more than 1.5 in. from the flowtube pedestal. See Figure 5-3.

Figure 5-3. Transmitter Removed from Flowtube Pedestal

5. Using a screwdriver, disconnect all wiring between the wiring assembly and the flowtube.

Replacing the FOUNDATION

™ Fieldbus Terminal Block in the Housing

The Rosemount 8742C terminal block is permanently attached to the electronics housing. It is not possible to remove the terminal block from the electronics house without damaging the transmitter.

Replacing the FOUNDATION

™ Fieldbus Electronics Boards

The 8742C Magnetic Flowmeter Transmitter FOUNDATION™ fieldbus

electronics boards may need to be replaced if they are damaged or nonfunctional. Use the following procedures to replace electronics boards in the Rosemount 8742C. You will need a small, flat-head screwdriver.

NOTEThe electronics boards are electrostatically sensitive. Be sure to observe handling precautions for static-sensitive components.

Remove the Electronics Boards

1. Turn off and disconnect all electric power to the transmitter.

2. Unscrew and remove the electronics board compartment cover.

8742

-100

2A03

AFlowtube Pedestal

Grounding Lug

8742-1002A03B

See “Safety Information” on page 5-1 for complete warning information.

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Figure 5-4. Electronics Board Assembly

3. Loosen the three captive screws that anchor the electronics.

4. Slowly pull the electronics boards out of the housing.

Install the Electronics Boards

1. Verify that all electric power to the Rosemount 8742C Magnetic Flowmeter Transmitter is disconnected.

2. Align the three electronics boards over the captive screw holes in the housing.

3. Slowly press the boards into place. Do not force the boards down. Check the screw alignment if they do not glide into place.

4. Tighten the captive screws to anchor the three electronics boards.

5. Screw and tighten the electronics board compartment cover.

Local Display Rotation

1. Turn off and disconnect all electric power to the transmitter.

2. Unscrew and remove the extended LCD meter cover.

3. Loosen the three captive screws that anchor the local display to the electronics board stack.

4. Slowly pull the local display away from the electronics board stack. The indicator may be rotated in 90° increments for easy viewing. The 20-pin connector can be placed in any of the 4 locations on the back of the local display, but the connector must line up with receptors on the electronics board stack.

5. Rotating the local display may require moving one or two screws from their previous position. Move screws to align with the standoffs on the electronics board stack.

6. Slowly press the 20-pin connector into the electronics board stack. Tighten the captive screws to anchor the local display into the electronics board stack.

7. Screw and tighten the extended LCD meter cover.

8742-8742P01A

Electronics Boards

See “Safety Information” on page 5-1 for complete warning information.

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Section 6 Troubleshooting

Step 1: Function Block Errors . . . . . . . . . . . . . . . . . . . . . . page 6-3

Step 2: Diagnostic Messages . . . . . . . . . . . . . . . . . . . . . . page 6-3

Step 3: Wiring Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 6-3

Step 4: Process Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 6-3

Step 5: Installed Flowtube Tests . . . . . . . . . . . . . . . . . . . . page 6-3

Step 6: Uninstalled Flowtube Tests . . . . . . . . . . . . . . . . . . page 6-5

This section covers basic transmitter and flowtube troubleshooting. Problems in the magnetic flowmeter system are usually indicated by incorrect output readings from the system, error messages, or failed tests. Consider all sources when identifying a problem in your system. If the problem persists, consult your local Rosemount representative to determine if the material should be returned to the factory.

Instructions and procedures in this section may require special precautions to ensure the safety of the personnel performing the operations. Please read the following safety messages before performing any operation described in this section. Refer to these warnings when appropriate throughout this section.

The Magnetic Flowmeter Transmitter performs self diagnostics on the entire magnetic flowmeter system: the transmitter, the flowtube, and the interconnecting wiring. By sequentially troubleshooting each individual piece of the magmeter system, it becomes easier to pin point the problem and make the appropriate adjustments.

If there are problems, Table 6-1 lists the most common magmeter problems and corrective actions.

Failure to follow these installation guidelines could result in death or serious

injury:

Installation and servicing instructions are for use by qualified personnel only. Do not

perform any servicing other than that contained in the operating instructions, unless

qualified. Verify that the operating environment of the flowtube and transmitter is

consistent with the appropriate FM or CSA approval.

Do not connect a Rosemount 8742C to a non-Rosemount flowtube that is located in an

explosive atmosphere.

Mishandling products exposed to a hazardous substance may result in death or serious

injury. If the product being returned was exposed to a hazardous substance as defined

by OSHA, a copy of the required Material Safety Data Sheet (MSDA) for each

hazardous substance identified must be included with the returned goods.

www.rosemount.com

Page 66: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

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August 2004Rosemount 8742C

Table 6-1. Quick Troubleshooting Guide

Symptom Potential Cause Corrective Action

Reading does not appear to be

within rated accuracy

Transmitter, control system, or other

receiving device not configured

properly

Check all configuration variables for the transmitter, flowtube,

communicator, and/or control system.

Check these other transmitter settings:

Flowtube calibration number

Units

Line size

Electrode coating Use bulletnose electrodes in the Rosemount 8705 Flowtube.

Downsize the flowtube to increase the flow rate above 3 ft/s.

Periodically clean the flowtube.

Air in line Move the flowtube to another location in the process line to

ensure that it is full under all conditions.

Flow rate is below 1 ft/s

(specification issue)

See the accuracy specification for specific transmitter and

flowtube.

Insufficient upstream/downstream pipe

diameter

Move flowtube to location where 5 pipe diameters upstream

and 2 pipe diameters downstream is possible

Cables for multiple magmeters run

through same conduit

Run only one conduit cable between each flowtube and

transmitter

Auto zero was not performed when the

coil drive frequency was changed from

5 Hz to 37.5 Hz

Perform the auto zero function with full pipe and no flow.

Flowtube failure—shorted electrode See “Step 2: Diagnostic Messages” on page 6-3.

Flowtube failure—shorted or open coil See “Step 2: Diagnostic Messages” on page 6-3.

Transmitter failure Replace the electronics boards.

Transmitter wired to correct flowtube Check wiring

Noisy process Chemical additives upstream of

magnetic flowmeter

Complete the possible solutions listed under “Step 4: Process

Noise” on page 6-3.

Move the injection point downstream of the magnetic flowmeter,

or move the magnetic flowmeter.

Sludge flows—mining/coal/sand/

slurries (other slurries with hard

particles)

Decrease the flow rate below 10 ft/s.

Styrofoam or other insulating particles

in the process

Complete the possible solutions listed under “Step 4: Process

Noise” on page 6-3.

Consult the factory.

Electrode coating Use bulletnose electrodes in the Rosemount 8705 Flowtube.

Use a smaller flowtube to increase the flow rate above 3 ft/s.

Periodically clean the flowtube.

Air in the line Move the flowtube to another location in the process line to

ensure that it is full under all conditions.

Meter output is unstable Electrode incompatibility Check the Magnetic Flowmeter Material Selection Guide

(00816-0100-3033) for chemical compatibility with electrode

material located on www.rosemount.com.

Improper grounding See “Step 2: Diagnostic Messages” on page 6-3.

High local magnetic or electric fields Move the magnetic flowmeter (5 ft away is usually acceptable).

Sticky valve (Look for periodic

oscillation of meter output)

Correct valve sticking.

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STEP 1: FUNCTION BLOCK ERRORS

Specific transmitter software troubleshooting for resource block errors and transducer block diagnostics are presented in the appendices.

STEP 2: DIAGNOSTIC MESSAGES

Messages on the local display or diagnostics with a red light in the detailed status of the transducer block also provide guidance in troubleshooting problems. Refer to Section 5: Operation and Maintenance for details.

STEP 3: WIRING ERRORS

The most common magmeter problem is wiring between the flowtube and the transmitter in remote mount installations. The signal wire and coil drive wire must be twisted shielded cable: 20 AWG twisted shielded cable for the electrodes and 14 AWG twisted shielded cable for the coils. Ensure that the cable shield is connected at both ends of the electrode and coil drive cables. Signal and coil drive wires must have their own cables. The single conduit that houses both the signal and coil drive cables should not contain any other wires. For more information on proper wiring practices, refer to Section 2: Installation, “Wiring” on page 2-4.

STEP 4: PROCESS NOISE

In some circumstances, process conditions rather than the magmeter can cause the meter output to be unstable. Possible solutions for addressing a noisy process situation are given below. When the output attains the desired stability, no further steps are required.

The Auto Zero function describes on page 5-4 how to initializes the transmitter for use with the 37.5 Hz coil drive mode only. Run this function only with the transmitter and flowtube installed in the process. The flowtube must be filled with process fluid with zero flow rate. Before running the auto zero function, be sure the coil drive mode is set to 37.5 Hz.

Set the loop to manual if necessary and begin the auto zero procedure. The transmitter completes the procedure automatically in about two minutes. A symbol appears in the lower right-hand corner of the display to indicate that the procedure is running.

1. Change the coil drive to 37.5 Hz. Complete the Auto Zero function, if possible.

2. Increase the damping.

Consult your Rosemount sales representative about using a high-signal magnetic flowmeter system.

STEP 5: INSTALLED FLOWTUBE TESTS

If a problem with an installed flowtube is identified, the following chart can assist in troubleshooting the flowtube. Before performing any of the flowtube tests, disconnect or turn off power to the transmitter. To interpret the results, the hazardous location certification for the flowtube must be known. Applicable codes for the Rosemount 8705 are N0, N5, and KD. Applicable codes for the 8707 are N0 and N5. Applicable codes for the 8711 are N0, N5, E5, and CD. Always check the operation of test equipment before each test.

If possible, take all readings from inside the flowtube junction box. If the flowtube junction box is inaccessible, take measurements as close as possible. Readings taken at the terminals of remote-mount transmitters that are more than 100 feet away from the flowtube may provide incorrect or inconclusive information and should be avoided. A flowtube circuit diagram is provided in Figure 6-1.

6-3

Page 68: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual00809-0100-4793, Rev CA

August 2004Rosemount 8742C

Test equipment (such as Fluke Model 25, 27, 83, 85, 87, or 8060A multimeter and a B&K Model 878 LCR meter or equivalent) is needed to conduct these tests. Same of the tests will require measuring conductance (nS, nanosiemens), the reciprocal of resistance. It is possible to test a LCR meter by selecting the units nS and holding the leads apart. The value should be less than one, while touching the leads together should result in an overload value. The LCR meter may be used with flow in the flowtube.

Test

Flowtube

Location

Required

Equipment

Measuring at

Connections Expected Value Potential Cause Corrective Action

A. Flowtube

Coil

Installed or

Uninstalled

Multimeter 1 and 2 = R • Open or

Shorted Coil

• Remove and

replace flowtube

B. Shields to

Case

Installed or

Uninstalled

Multimeter 17 and

and case

ground

17 and case

ground

• Moisture in

terminal block

• Leaky electrode

• Process behind

liner

• Clean terminal

block

• Remove

flowtube

C. Coil Shield

to Coil

Installed or

Uninstalled

Multimeter 1 and

2 and

(< 1nS)

(< 1nS)• Process behind

liner

• Leaky electrode

• Moisture in

terminal block

• Remove

flowtube and dry

• Clean terminal

block

• Confirm with

flowtube coil

test

D. Electrode

Shield to

Electrode

Installed LCR (Set to

Resistance

and 120 Hz)

18 and 17 = R1

19 and 17 = R2

R1 and R2 should be stable

NO:

N5, E5, CD,

ED:

• Unstable R1 or

R2 values

confirm coated

electrode

• Shorted

electrode

• Electrode not in

contact with

process

• Empty Pipe

• Low conductivity

• Remove coating

from flowtube

wall

• Use bulletnose

electrodes

• Repeat

measurement

2Ω R 18Ω≤ ≤

0.2Ω<

∞Ω

∞Ω

R1 R– 2 300Ω≤

R1 R– 2 1500Ω≤

6-4

Page 69: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual 00809-0100-4793, Rev CA

August 2004 Rosemount 8742C

Figure 6-1. Flowtube Circuit Diagram

STEP 6: UNINSTALLED FLOWTUBE TESTS

An uninstalled flowtube can also be used for flowtube troubleshooting. To interpret the results, the hazardous location certification for the flowtube must be known. Applicable codes for the Rosemount 8705 are N0, N5, and KD. Applicable codes for the Rosemount 8707 are N0 and N5. Applicable codes for the Rosemount 8711 are N0, N5, E5, and CD.

A flowtube circuit diagram is provided in Figure 6-1. Take measurements from the terminal block and on the electrode head inside the flowtube. The measurement electrodes, 18 and 19, are on opposite sides in the inside diameter. If applicable, the third grounding electrode is in between the other two electrodes. On 8711 flowtubes, electrode 18 is near the flowtube junction box and electrode 19 is near the bottom of the flowtube (Figure 6-2). The different flowtube models will have slightly different resistance readings. Flanged flowtube resistance readings are in Table 6-2 while wafer flowtube resistance readings are in Table 6-3.

8712

-000

7E04

A

68.1k (not applicable for flowtubes with N0 hazardous certification approval option code)

Flowtube Housing

68.1k

See “Safety Information” on page 4-1 for complete warning information.

6-5

Page 70: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual00809-0100-4793, Rev CA

August 2004Rosemount 8742C

Figure 6-2. 45° Electrode Plane

To insure accuracy of resistance readings, zero out multimeter by shorting and touching the leads together. If any of these tests fail, refer to “Return of Materials” on page 1-3 or contact your Rosemount representative to interpret the results.

Table 6-2. Uninstalled Rosemount 8705/ 8707 Flanged Flowtube Tests

Measuring at Connections

Hazardous Location Certifications

N0 N5, KD

18 and Electrode(1)

(1) It is difficult to tell from visual inspection alone which electrode is wired to which number terminal in the terminal block. Measure both electrodes. One electrode should result in an open reading, while the other electrode should be less than 275 .

19 and Electrode(1)

17 and Grounding Electrode

17 and Ground Symbol

17 and 18 Open Open

17 and 19 Open Open

17 and 1 Open Open

Table 6-3. Uninstalled Rosemount 8711 Wafer Flowtube Tests

Measuring at Connections

Hazardous Location Certification

N0 N5, E5, CD

18 and Electrode(1)

(1) Measure the electrode closest to the junction box

19 and Electrode(2)

(2) Measure the electrode farthest away from the junction box.

17 and Grounding Electrode

17 and Grounding Symbol

17 and 18 Open Open

17 and 19 Open Open

17 and 1 Open Open

8711-8711F01A

Ω

275≤ Ω 61kΩ R 75k≤ ≤ Ω

275≤ Ω 61kΩ R 75k≤ ≤ Ω

0.3≤ Ω 0.3≤ Ω

0.3≤ Ω 0.3≤ Ω

0.3≤ Ω 61kΩ R 75k≤ ≤ Ω

275≤ Ω 61kΩ R 75k≤ ≤ Ω

0.3≤ Ω 0.3≤ Ω

0.3≤ Ω 0.3≤ Ω

6-6

Page 71: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual 00809-0100-4793, Rev CA

August 2004 Rosemount 8742C

Appendix A Reference Data

Rosemount 8742C Transmitter Specifications . . . . . . . . page A-1Rosemount 8705 and 8707 Flowtubes Specifications . . page A-5Rosemount 8711 Wafer Flowtube Specifications . . . . . . page A-11Rosemount 8714D Specifications . . . . . . . . . . . . . . . . . . . page A-14Dimensional Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . page A-15Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page A-22

ROSEMOUNT 8742C TRANSMITTER SPECIFICATIONS

Functional Specifications

Flowtube Compatibility

Compatible with Rosemount 8705, 8711, and 8721 flowtubes.

Conductivity Limits

Process liquid must have a conductivity of 5 microsiemens/cm (5

micromhos/cm) or greater for 8742C. Excludes the effects of interconnecting

cable length in remote mount transmitter installations.

Flowtube Coil Resistance

25 maximum

Flow Rate Range

Capable of processing signals from fluids that are traveling between 0 and 40

ft/s (0 to 12 m/s) for both forward and reverse flow in all flowtube sizes.

Power Supply

90–250 V ac, 50–60 Hz, 15–50 V dc

www.rosemount.com

Page 72: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual00809-0100-4793, Rev CA

August 2004Rosemount 8742C

Supply Current Requirements

Units powered by 15-50 V dc power supply may draw up to 1 amp of

current.

Installation Coordination

Installation (overvoltage) Category II

Power Consumption

10 watts maximum

Ambient Temperature Limits

Operating

–40 to 165 °F (–40 to 74 °C) without local operator interface

–13 to 147 °F (–25 to 65 °C) with local operator interface

Storage

–40 to 185 °F (–40 to 85 °C)

Humidity Limits

0–100% RH to 150 °F (65 °C)

Enclosure Rating

NEMA 4X CSA Type 4X, IEC 60529, IP67 (transmitter),

Pollution Degree 2

Output Signal

Manchester-encoded digital signal that conforms to IEC 1158-2 and ISA 50.02

Power Supply (Volts)

15 5020 30 40

Su

pp

ly C

urr

en

t (A

mp

s)

1.0

0.75

0.5

0.25

0

I = 10/VI = Supply current requirement (Amps)V = Power supply voltage (Volts)

A-2

Page 73: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual 00809-0100-4793, Rev CA

August 2004 Rosemount 8742C

FOUNDATION Fieldbus

SpecificationsSchedule Entries

Seven (7)

Links

Twenty (20)

Virtual Communications Relationships (VCRs)

One (2) predefined (F6, F7)

Nineteen (18) configurable (see Table A-1)

Reverse Flow

Detects and reports reverse flow

Software Lockout

A write-lock switch and software lockout are provided in the resource function

block.

Turn-on Time

30 minutes to rated accuracy from power up;

10 seconds communication from power interruption

Start-up Time

0.2 seconds from zero flow

Low Flow Cutoff

Adjustable between 0 and 1 ft/s. Below selected value, output is driven to the

zero flow rate.

Overrange Capability

Signal output continues to 110% of upper range value setting, then remains

constant. Messages are supplied to the fieldbus network.

Damping

Adjustable between 0 and 255 seconds

Table A-1. Block Information

Block Base Index Execution Time (Milliseconds)

Resource (RB) 300 —

Transducer (TB) 400 —

Analog Input (AI) 1,000 15

Proportional/Integral / Derivative (PID) 10,000 25

Intergrator 12,000 20

A-3

Page 74: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual00809-0100-4793, Rev CA

August 2004Rosemount 8742C

Performance Specifications

(System specifications are given using the unit at referenced conditions.)

Accuracy

Rosemount 8742C Transmitter with 8705 and 8721 Flowtubes

System accuracy is ±0.5% of rate from 1 to 40 ft/s (0.3 to 12 m/s);

includes combined effects of linearity, hysteresis, repeatability, and

calibration uncertainty; below 1.0 ft/s (0.3 m/s), the system has an

accuracy of ±0.005 ft/s (0.0015 m/s).

Rosemount 8742C Transmitter with 8711 Flowtube

System accuracy is ±0.5% of rate from 3 to 40 ft/s (0.9 to 12 m/s);

includes combined effects of linearity, hysteresis, repeatability, and

calibration uncertainty; below 3 ft/s (0.9 m/s), the system has an accuracy

of ±0.015 ft/s (0.005 m/s).

Vibration Effect

IEC 60770-1

Repeatability

±0.1% of reading

Response Time

0.2 seconds maximum response to step change in input

Stability

±0.1% of rate over six months

Ambient Temperature Effect

±0.25% of rate over operating temperature range

EMC Compliance

EN61326-1 1997 + A1/A2 3(Industrial) electromagnetic compatibility (EMC)

for process and laboratory apparatus.

Transient Protection

The 8742C transmitter prevents damage to the flowmeter from transients

compliant to:

IEC 6100 – 4-4 (for burst currents)

IEC 6100 – 4-5 (for surge currents)

Mounting Position Effect

None when installed to ensure flowtube remains full

A-4

Page 75: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual 00809-0100-4793, Rev CA

August 2004 Rosemount 8742C

Physical Specifications Materials of Construction (Transmitter)

Housing

Low-copper aluminum

Paint

Polyurethane

Cover Gasket

Rubber

Electrical Connections

Two ¾–14 NPT with number 8 screw terminal connections are provided for

electrical wiring. PG13.5 and CM20 adapters are available. Screw terminals

provided for all connections. Power wiring connected to transmitter only.

Integrally mounted transmitters are factory wired to the flowtube.

Mounting

Integrally mounted transmitters do not require interconnecting cables. The

local display and transmitter can be rotated in 90° increments. Remote

mounted transmitters require only a single conduit connection to the flowtube.

Weight

Approximately 7 pounds (3.2 kg). Add 0.5 pounds (0.5 kg) for local display.

ROSEMOUNT 8705 AND 8707 FLOWTUBES SPECIFICATIONS

Functional Specifications

Service

Conductive liquids and slurries

Line Sizes1/2–36 inch (15–900 mm) for Rosemount 8705

3–36 inch (80–600 mm) for Rosemount 8707

Interchangeability

Rosemount 8705 Flowtubes are interchangeable with 8712D, 8732, and

8742C Transmitters. Rosemount 8707 High-Signal Flowtubes are

interchangeable with 8712H High-Signal Transmitters. System accuracy is

maintained regardless of line size or optional features. Each flowtube

nameplate has a sixteen-digit calibration number that can be entered into a

transmitter through the Local Operator Interface (LOI) or the HART

Communicator on the 8712H and the 8732C. In a FOUNDATION™ fieldbus

environment, the 8742C can be configured using the DeltaV™ fieldbus

configuration tool or another FOUNDATION fieldbus configuration device. No

further calibration is necessary.

Upper Range Limit

30 ft/s (10 m/s)

A-5

Page 76: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual00809-0100-4793, Rev CA

August 2004Rosemount 8742C

Process Temperature Limits

Teflon (PTFE) Lining

–20 to 350 °F (–29 to 177 °C)

Tefzel (ETFE) Lining

–20 to 300 °F (–29 to 149 °C)

PFA Lining

-20 to 350 °F (-29 to 177°C)

Polyurethane Lining

0 to 140 °F (–18 to 60 °C)

Neoprene Lining

0 to 185 °F (–18 to 85 °C)

Linatex Lining

0 to 158 °F (–18 to 70°C)

Ambient Temperature Limits

–30 to 150 °F (–34 to 65 °C)

Pressure Limits

See Table A-2 and Table A-4

Vacuum Limits

Teflon (PTFE) Lining

Full vacuum to 350 °F (177 °C) through 4-inch (100 mm) line sizes.

Consult factory for vacuum applications with line sizes of 6 inches (150

mm) or larger.

All Other Standard Flowtube Lining Materials

Full vacuum to maximum material temperature limits for all available line

sizes.

Submergence Protection

IP 68. Continuous to 30 feet (10 meters)

Recommended with sealed cable glands

Conductivity Limits

Process liquid must have a conductivity of 5 microsiemens/cm (5

micromhos/cm) or greater for 8705. Process liquid must have a conductivity of

50 microsiemens/cm (50 micromhos/cm) for 8707 when used with 8712H, 5

microsiemens/cm when used with other transmitters. Excludes the effect of

interconnecting cable length in remote mount transmitter installations.

A-6

Page 77: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual 00809-0100-4793, Rev CA

August 2004 Rosemount 8742C

Table A-2. Temperature vs. Pressure Limits(1)

Flowtube Temperature vs. Pressure Limits for ASME B16.5 Class Flanges (1/2- to 36-inch line sizes) (2)

Pressure

Flange Material Flange Rating@ -20 to 100 °F(-29 to 38 °C)

@ 200 °F(93 °C)

@ 300 °F(149 °C)

@ 350 °F(177 °C)

Carbon Steel

Class 150 285 psi 260 psi 230 psi 215 psi

Class 300 740 psi 675 psi 655 psi 645 psi

Class 600 (3) 1000 psi 800 psi 700 psi 650 psi

Class 600 (4) 1480 psi NA NA NA

Class 900 2220 psi

304 Stainless Steel

Class 150 275 psi 235 psi 205 psi 190 psi

Class 300 720 psi 600 psi 530 psi 500 psi

Class 600 (5) 1000 psi 800 psi 700 psi 650 psi

Class 600 (6) 1440 psi NA NA NA

Class 900 2160 psi

(1) Liner temperature limits must also be considered. Polyurethane, Linatex, and Neoprene have temperature limits of 140°F, 158°F, and 185°F, respectively.(2) 30- and 36-inch AWWA C207 Table A-3 Class D rated to 150 psi at atmospheric temperature.(3) Option Code C6(4) Option Code C7(5) Option Code S6(6) Option Code S7

Table A-3. Temperature vs. Pressure Limits (1)

Flowtube Temperature vs. Pressure Limits for AS2129 Table D and E Flanges (4- to 24-inch line sizes)

Pressure

Flange Material Flange Rating@ -200 to 50 °F(-320 to 122 °C)

@ 100 °F(212 °C)

@ 150°F(302 °C)

@ 200 °F(392 °C)

Carbon SteelD 101.6 psi 101.6 psi 101.6 psi 94.3 psi

E 203.1 psi 203.1 psi 203.1 psi 188.6 psi

(1) Liner temperature limits must also be considered. Polyurethane, Linatex, and Neoprene have temperature limits of 140°F, 158°F, and 185°F, respectively.

Table A-4. Temperature vs. Pressure Limits (1)

Flowtube Temperature vs. Pressure Limits for DIN Flanges (15 to 600 mm line sizes)

Pressure

Flange Material Flange Rating@ -196 to 50 °C(-320 to 122 °F)

@ 100 °C(212 °F)

@ 150°C(302 °F)

@ 175°C(347 °F)

Carbon Steel

PN 10 10 bar 10 bar 9.7 bar 9.5 bar

PN 16 16 bar 16 bar 15.6 bar 15.3 bar

PN 25 25 bar 25 bar 24.4 bar 24.0 bar

PN 40 40 bar 40 bar 39.1 bar 38.5 bar

304 Stainless Steel

PN 10 9.1 bar 7.5 bar 6.8 bar 6.5 bar

PN 16 14.7 bar 12.1 bar 11.0 bar 10.6 bar

PN 25 23 bar 18.9 bar 17.2 bar 16.6 bar

PN 40 36.8 bar 30.3 bar 27.5 bar 26.5 bar

(1) Liner temperature limits must also be considered. Polyurethane, Linatex, and Neoprene have temperature limits of 140°F, 158°F, and 185°F, respectively.

A-7

Page 78: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual00809-0100-4793, Rev CA

August 2004Rosemount 8742C

Performance Specifications

(System specifications are given using the frequency output and with the unit

at referenced conditions.)

Accuracy

Rosemount 8705 with 8712D, 8732C, or 8742C

±0.5% of rate from 1 to 30 ft/s (0.3 to 10 m/s). Includes combined effects

of linearity, hysteresis, repeatability, and calibration uncertainty. Accuracy

is ±0.005 ft/s (±0.0015 m/s) from low-flow cutoff to 1.0 ft/s (0.3 m/s).

Rosemount 8707 with 8712D/H, 8732C, or 8742C

±0.5% of rate from 3 to 30 ft/s (1 to 10 m/s). Include combined effects of

linearity, hysteresis, repeatability and calibration uncertainty. Accuracy is

±0.015 ft/s (±0.0045 m/s) from low-flow cutoff to 3.0 ft/s (1 m/s).

Vibration Effect

IEC 60770-1

Mounting Position Effect

None when installed to ensure flowtube remains full

Physical Specifications Non-Wetted Materials

Flowtube

AISI Type 304 SST

Flanges

Carbon steel, AISI Type 304/304L SST,

or Type 316/316L SST

Housing

Welded steel

Paint

Polyurethane

Process Wetted Materials

Lining

PFA, Teflon (PTFE), Tefzel (ETFE), polyurethane, neoprene, Linatex

Electrodes

316L SST, Hastelloy C-276, tantalum, 90% platinum-10% iridium, titanium

Process Connections

ASME B16.5 (ANSI) Class 150, Class 300, Class 600, or Class 900

0.5- to 30-inch (Class 150)

0.5- to 24-inch (Class 300)

0.5- to 10-inch (Class 600 derated to 1000 psi max)

1- to 8-inch (Full rated Class 600 and 900)

A-8

Page 79: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual 00809-0100-4793, Rev CA

August 2004 Rosemount 8742C

AWWA C207 Table 3 Class D

30- and 36-inch

DIN PN 10, 16, 25, and 40

PN10: Not available for flange sizes from 15 to 150 mm

PN16: Not available for flange sizes from 15 to 80 mm

PN 25: Not available for flange sizes from 15 to 150 mm

PN40: Available for all flange sizes

AS 2129 Table D and E

0.5- to 36 inch

AISI Type 304 SST Sanitary Tri-Clover

3-A-compliant quick disconnect ferrule-mounted to ASME B16.5 (ANSI)

Class 150 flange; 0.5- to 3-inch.

Electrical Connections

Two ¾–14 NPT connections with number 8 screw terminals are provided in

the terminal enclosure for electrical wiring.

Grounding Electrode

A grounding electrode is installed similarly to the measurement electrodes

through the flowtube lining on 8705 flowtubes. It is available in all electrode

materials.

Grounding Rings

Grounding rings are installed between the flange and the tube face on both

ends of the flowtube. Single ground rings can be installed on either end of the

flowtube. They have an I.D. slightly larger than the flowtube I.D. and an

external tab to attach ground wiring. Grounding rings are available in 316L

SST, Hastelloy-C, titanium, and tantalum.

Lining Protectors

Lining protectors are installed between the flange and the tube face on both

ends of the flowtube. The leading edge of lining material is protected by the

lining protector; lining protectors cannot be removed once they are installed.

Lining protectors are available in 316L SST, Hastelloy-C, and titanium.

Dimensions

See Figure 2, Figure 3, and Figure 4 and Table A-7, Table A-8, and Table A-9.

Weight

See Table A-9 and Table A-10

A-9

Page 80: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual00809-0100-4793, Rev CA

August 2004Rosemount 8742C

Table A-5. Flowtube Weight (ASME)

Nominal Line Size(1) Inches (mm)

Flowtube Flange RatingFlowtube Weight

lb (kg)ASME B16.5 (ANSI) DIN

½ (15)

½ (15)

150

300

PN 40 20 (9)

22 (10)

1 (25)

1 (25)

150

300

PN 40 20 (9)

22 (10)

1½ (40)

1½ (40)

150

300

PN 40 22 (10)

24 (11)

2 (50)

2 (50)

150

300

PN 40 26 (12)

28 (13)

3 (80)

3 (80)

150

300

PN 40 40 (18)

47 (21)

4 (100)

4 (100)

150

300

PN 16 48 (22)

65 (30)

6 (150)

6 (150)

150

300

PN 16 81 (37)

93 (42)

8 (200)

8 (200)

150

300

PN 10 110 (50)

162 (74)

10 (250)

10 (250)

150

300

PN 10 220 (98)

300 (136)

12 (300)

12 (300)

150

300

PN 10 330 (150)

435 (197)

14 (350)

16 (400)

150

150

PN 10

PN 10

370 (168)

500 (227)

18 (450)

20 (500)

150

150

PN 10

PN 10

600 (272)

680 (308)

24 (600) 150 PN 10 1,000 (454)

30 (750)

36 (900)

150

125

-

-

1,747 (792)

1,975 (898)

(1) 30- and 36-inch AWWA C207 Table 2 Class D rated to 150 psi at atmospheric temperature.

Table A-6. Flowtube weights (AS2129)

Nominal Line Size Inches (mm) AS2129 Flowtube Weight lb (kg)

4 (100)

4 (100)

D

E

33 (15)

37 (17)

6 (150)

6 (150)

D

E

66 (30)

71 (32)

8 (200)

8 (200)

D

E

86 (39)

88 (40)

10 (250)

10 (250)

D

E

187 (85)

201 (91)

12 (300)

12 (300)

D

E

273 (124)

284 (129)

14 (350)

14 (350)

D

E

293 (133)

317 (144)

16 (400)

16 (400)

D

E

386 (175)

430 (195)

18 (450)

18 (450)

D

E

516 (234)

569 (258)

20 (500)

20 (500)

D

E

569 (258)

626 (284)

24 (600)

24 (600)

D

E

855 (388)

974 (442)

A-10

Page 81: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual 00809-0100-4793, Rev CA

August 2004 Rosemount 8742C

ROSEMOUNT 8711 WAFER FLOWTUBE SPECIFICATIONS

Functional Specifications

Service

Conductive liquids and slurries

Line Sizes

0.15- through 8-inch (4 through 200 mm)

Interchangeability

Rosemount 8711 Flowtubes are interchangeable with 8732 and 8742C

Transmitters. System accuracy is maintained regardless of line size or

optional features. Each flowtube nameplate has a sixteen-digit calibration

number that can be entered into a transmitter through the Local Operator

Interface (LOI) or the HART Communicator on the Rosemount 8712H and the

8732C. In a FOUNDATION fieldbus environment, the 8742C can be configured

using the DeltaV fieldbus configuration tool or another FOUNDATION fieldbus

configuration device. No further calibration is necessary.

Upper Range Limit

30 ft/s (10 m/s)

Process Temperature Limits

Tefzel (ETFE) Lining

–20 to 300 °F (–29 to 149 °C) for 0.5- through 8-inch

(15–200 mm) line sizes

–20 to 200 °F (–29 to 93 °C) for 0.15- and 0.3-inch

(4 and 8 mm) line sizes

Teflon (PTFE) Lining

-20 to 350 °F (-29 to 177 °C)

Ambient Temperature Limits

–30 to 150 °F (–34 to 65 °C)

Maximum Safe Working Pressure at 100 °F (38 °C)

Tefzel (ETFE) Lining

Full vacuum to 740 psi (5.1 MPa) for 0.5- through 8-inch

(15 through 200 mm) flowtubes

285 psi (1.96 MPa) for 0.15- and 0.30-inch (4 and 8 mm) flowtubes

Teflon (PTFE) Lining

Full vacuum through 4-inch (100 mm) line sizes. Consult factory for

vacuum applications with line sizes of 6 inches (150 mm) or larger.

Conductivity Limits

Process liquid must have a conductivity of 5 microsiemens/cm (5

micromhos/cm) or greater for 8711. Excludes the effect of interconnecting

cable length in remote mount transmitter installations.

A-11

Page 82: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual00809-0100-4793, Rev CA

August 2004Rosemount 8742C

Performance Specifications

(System specifications are given using the frequency output and with the unit

at referenced conditions.)

Accuracy

Rosemount 8711 with 8712D, 8732C, or 8742C Transmitters

±0.5% of rate from 3 to 30 ft/s (1 to 10 m/s)

±0.015 ft/s (0.0045 m/s) from low-flow cutoff to 3 ft/s (1 m/s)

Vibration Effect

IEC 60770-1

Mounting Position Effect

No effect when installed to ensure flowtube remains full

Physical Specifications Non-Wetted Materials

Flowtube

303 SST (ASTM A-743)

Coil Housing

Investment cast steel (ASTM A-27)

Paint

Polyurethane

Process-Wetted Materials

Lining

Tefzel (ETFE), Teflon (PTFE)

Electrodes

316L SST, Hastelloy C-276, tantalum,

90% platinum—10% iridium, titanium

Process Connections

Mounts between these Flange Configurations

ASME B16.5 (ANSI): Class 150, 300

DIN: PN 10 and 25

BS: 10 Table D, E, and F

A-12

Page 83: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual 00809-0100-4793, Rev CA

August 2004 Rosemount 8742C

Studs, Nuts, and Washers(1)

ASME B16.5 (ANSI)

0.15- through 1-inch (4 through 25 mm):

316 SST, ASTM A193, Grade B8M, Class 1 threaded mounting studs;

ASTM A194, Grade 8M heavy hex nuts; SAE per ANSI B18.2.1, Type A,

Series N flat washers.

1.5- through 8-inch (40 through 200 mm):

CS, ASTM A193, Grade B7, Class 1 threaded mounting studs; ASTM

A194, Grade 2H heavy hex nuts; SAE per ANSI B18.2.1, Type A, Series

N flat washers; all items clear, chromate zinc-plated.

DIN

4 through 25 mm (0.15- through 1-inch):

316 SST ASTM A193, Grade B8M Class 1 threaded mounting studs;

ASTM A194, Grade 8M, DIN 934 H=D, metric heavy hex nuts; 316 SST,

A4, DIN 125 flat washers.

40 through 200 mm (1.5- through 8-inch):

CS, ASTM A193, Grade B7 threaded mounting studs; ASTM A194,

Grade 2H, DIN 934 H=D, metric heavy hex nuts; CS, DIN 125 flat

washers; all items yellow zinc-plated.

Electrical Connections

Two ¾–14 NPT connections with number 8 screw terminals are provided in

the terminal enclosure for electrical wiring.

Grounding Electrode

A grounding electrode is installed similarly to the measurement electrodes

through the flowtube lining. It is available in all electrode materials.

Grounding Rings

Grounding rings are installed between the flange and the tube face on both

ends of the flowtube. They have an I.D. slightly larger than the flowtube I.D.

and an external tab to attach ground wiring. Grounding rings are available in

316L SST, Hastelloy C-276, titanium, and tantalum.

Dimensions and Weight

See Figure 5, Figure 6, and Table A-10

(1) 0.15 and 0.30 inch (4 and 80 mm) flowtubes mount between 1/2-inch flange.

A-13

Page 84: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual00809-0100-4793, Rev CA

August 2004Rosemount 8742C

ROSEMOUNT 8714D SPECIFICATIONS

Functional Specifications

Ambient Temperature Limits

Operating

–30 to 140 °F (–34 to 60 °C)

Storage

–40 to 140 °F (–40 to 60 °C)

Humidity Limits

0 to 95% relative humidity

Performance Specifications

Accuracy

±0.05% of rate at 30 ft/s at 25°C

±0.10% of rate at 10 ft/s and 3 ft/s

Warm-up Time

30 minutes

Ambient Temperature Effect

< 0.015% of rate per 10 °F (< 0.027% per 10 °C)

Humidity Effect

No effect from 0 to 60% relative humidity

< 0.10% of rate from 60 to 90% relative humidity

Long-Term Stability

< 0.10% of rate shift in one year

Physical Specifications Electrical Connections

Electrical connections are compatible with 8712D or 8732C terminal blocks.

Electrical connections are not compatible with 8712H terminal block.

Mounting

Any position is acceptable

Materials of Construction

Housing

Extruded aluminum

Covers

Stamped aluminum, silk-screened

Paint

Polyurethane

Weight

Approximately 3 lb (2 kg)

A-14

Page 85: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual 00809-0100-4793, Rev CA

August 2004 Rosemount 8742C

DIMENSIONAL DRAWINGS

FIGURE 1. Rosemount 8742C Transmitter

5.10

(130)

6.48 (165)

3.07

(78)

8.81

(224)

3.43

(87)

3/4”-14 NPT Electrical

Conduit Connections

(2 places)

3/4”-14 NPT

Flowtube Conduit

Connections

(2 places)

7.49 (190)

1.94

(49)

3.00

(76)

LOI Cover

10.5

(267)

11.02

(280)

8742-8

742_06A

, 8742_06B

, 10

02G

01A

Note

Dimensions in inches (millimeters)

5.82

(148)

A-15

Page 86: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual00809-0100-4793, Rev CA

August 2004Rosemount 8742C

FIGURE 2. Rosemount 8705 and 8707 Flowtubes, Typical of 0.5- through 4-inch (15 through 100 mm) Line Sizes

FIGURE 3. Rosemount 8705 and 8707 Flowtubes, Typical of 6- through 36-inch (150 through 900 mm) Line Sizes

2.00

(50.8)

1.8

(46)

A

4.02

(102)

2.6

(66)

Relief

Valve

3/4-14 NPT

Conduit

Connection

5.00

(127)

2.6

(66)

H

L

C

8705-1

002A

05A

, 1002B

05A

Notes

Dimensions are in inches (millimeters)

See Table A-8 and Table A-9 for variable dimensions

W1 Housing Configuration (Sealed, welded housing with pressure relief valve)

A

1.8

(46)

4.02

(102)2.00

(51)

2.6

(66)

D

W3 Housing

Configuration

L

H

C

5.00

(127)

2.66

(66)

Notes

Dimensions are in inches (millimeters)

See Table A-8 and Table A-9 for variable dimensions

W3 Housing Configuration (Sealed welded housing with

separate electrode compartments)

87

05

-10

02

A0

6A

, 1

00

2B

06

A

A-16

Page 87: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual 00809-0100-4793, Rev CA

August 2004 Rosemount 8742C

FIGURE 4. Rosemount 8705 Sanitary Flowtubes, Typical of 1/2- through 3-inch (15 through 86 mm) Line Sizes

3/4-14 NPT

Conduit

Connection

E

1.8

(46)

2.00

(50.8)

4.02

(102)

2.6

(66)

Notes

Dimensions are in inches (millimeters)

See Table A-9 for available dimensions

W0 Housing Configuration (Sealed welded housing)

L

C

8705-1

002A

05A

, 1002B

05D

Grounding

Clamp

5.00

(127)

2.6

(66)

Table A-7. Sanitary Rosemount 8705 Flowtube Dimensions in inches (millimeters)

Line Size and Flange Rating

Nominal Tri-Clamp

Diameter Process Flange Rad. “B” Body Height “C” Max Overall Flowtube Length “L”

0.5–150 lb. 1.00 (25) 1.75 (44) 8.88 (226) 13.78 (350)

1–150 lb. 1.50 (40) 2.13 (54) 8.88 (226) 13.78 (350)

1.5–150 lb. 2.00 (50) 2.50 (64) 9.50 (242) 13.78 (350)

2–150 lb. 3.00 (80) 3.00 (76) 9.50 (242) 13.78 (350)

3–150 lb. 4.00 (100) 3.75 (95) 12.50 (318) 13.78 (350)

Dimensions with ASME B16.5 (ANSI) Flanges and Tri-Clamp Adapters.

A-17

Page 88: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual00809-0100-4793, Rev CA

August 2004Rosemount 8742C

Table A-8. Rosemount 8705 and 8707 Dimensions in Inches (Millimeters) (Dimensions with ASME B16.5 (ANSI) Flanges) (1) Refer to Dimensional Drawings, Figure 2, Figure 3, and Figure 4

Line Size(2) and

Flange Rating

Body Height

“H”

Liner Face

Diameter

“A”

Overall Flowtube

Length

“L”(3)Flange Diameter

“D” Liner Thickness Inside Diameter

0.5–150

0.5–300

0.5–600

6.75 (171)

6.75 (171)

6.75 (171)

1.38 (35)

1.38 (35)

1.38 (35)

7.88 (200)

7.88 (200)

8.67 (220)

3.50 (89)

3.75 (95)

3.75 (95)

0.09 (2.3)

0.09 (2.3)

0.09 (2.3)

0.49 (12.5)

0.49 (12.5)

0.49 (12.5)

1–150

1–300

1–600

1–900

6.75 (171)

6.75 (171)

6.75 (171)

6.75 (171)

2.00 (51)

2.00 (51)

1.62 (41)

1.62 (41)

7.88 (200)

7.88 (200)

8.67 (220)

9.66 (245)

4.25 (108)

4.88 (124)

4.88 (124)

5.88 (149)

0.09 (2.3)

0.09 (2.3)

0.09 (2.3)

0.13 (3.3)

0.91 (23)

0.91 (23)

0.91 (23)

0.80 (20)

1.5–150

1.5 –300

1.5–600

1.5–900

7.10 (180)

7.10 (180)

7.10 (180)

7.10 (180)

2.88 (73)

2.88 (73)

2.88 (73)

2.50 (64)

7.88 (200)

7.88 (200)

8.63 (219)

9.52 (242)

5.00 (127)

6.12 (155)

6.12 (155)

7.00 (178)

0.12 (3.1)

0.12 (3.1)

0.13 (3.3)

0.13 (3.3)

1.44 (37)

1.44 (37)

1.36 (35)

1.25 (32)

2–150

2–300

2–600

2–900

7.10 (180)

7.10 (180)

7.10 (180)

7.10 (180)

3.62 (92)

3.62 (92)

3.62 (92)

3.25 (83)

7.88 (200)

7.88 (200)

8.78 (223)

10.26 (261)

6.00 (152)

6.50 (165)

6.50 (165)

8.50 (216)

0.12 (3.1)

0.12 (3.1)

0.13 (3.3)

0.13 (3.3)

1.91 (49)

1.91 (49)

1.82 (46)

1.69 (43)

3–150

3–300

3–600

3–900

8.10 (206)

8.10 (206)

8.10 (206)

8.10 (206)

5.00 (127)

5.00 (127)

5.00 (127)

4.63 (118)

7.88 (200)

8.63 (219)

12.4 (315)

12.8 (326)

7.50 (191)

8.25 (210)

8.25 (210)

9.50 (241)

0.15 (3.8)

0.15 (3.8)

0.13 (3.3)

0.13 (3.3)

2.96 (75)

2.96 (75)

2.76 (70)

2.37 (60)

4–150

4–300

4–600

4–900

8.45 (215)

8.45 (215)

8.45 (215)

8.45 (215)

6.19 (157)

6.19 (157)

6.19 (157)

5.81 (148)

9.84 (250)

10.88 (276)

12.83 (326)

13.89 (353)

9.00 (229)

10.00 (254)

10.75 (273)

11.50 (292)

0.15 (3.8)

0.15 (3.8)

0.13 (3.3)

0.13 (3.3)

3.96 (101)

3.96 (101)

3.72 (95)

3.37 (86)

6–150

6–300

6–600

6–900

9.45 (240)

9.45 (240)

9.45 (240)

9.45 (240)

8.50 (216)

8.50 (216)

8.50 (216)

8.00 (203)

11.81 (300)

13.06 (332)

14.23 (361)

15.51 (394)

11.00 (279)

12.50 (318)

14.00 (356)

15.00 (381)

0.19 (4.8)

0.19 (4.8)

0.19 (4.8)

0.16 (4.1)

5.98 (152)

5.69 (144)

5.69 (144)

4.86 (123)

8–150

8–300

8–600

8–900

10.42 (265)

10.42 (265)

10.42 (265)

10.42 (265)

10.62 (270)

10.62 (270)

10.62 (270)

10.00 (254)

13.78 (350)

15.60 (396)

16.72 (428)

18.47 (469)

13.50 (343)

15.00 (381)

16.50 (419)

18.50 (470)

0.19 (4.8)

0.17 (4.3)

0.17 (4.3)

0.17 (4.3)

7.94 (202)

7.64 (194)

7.64 (194)

6.65 (169)

10–150

10–300

10–600

11.78 (299)

11.78 (299)

11.78 (299)

12.75 (324)

12.75 (324)

12.75 (324)

15.00 (381)

17.13 (435)

19.54 (496)

16.00 (406)

17.50 (444)

20.00 (508)

0.26 (6.5)

0.26 (6.5)

0.26 (6.5)

9.87 (251)

9.48 (241)

9.21 (234)

12–150

12–300

12.86 (327)

12.86 (327)

15.00 (381)

15.00 (381)

18.00 (457)

20.14 (512)

19.00 (483)

20.50 (52)

0.26 (6.7)

0.26 (6.7)

11.87 (301)

11.48 (292)

14–150

14–300

13.92 (354)

13.92 (354)

16.25 (413)

16.25 (413)

21.00 (533)

23.25 (591)

21.00 (533)

23.00 (584)

0.19 (4.8)

0.19 (4.8)

13.16 (334)

12.79 (325)

16–150

16–300

14.93 (379)

14.93 (379)

18.50 (470)

18.50 (470)

24.00 (610)

26.25 (667)

23.50 (597)

25.50 (648)

0.19 (4.8)

0.19 (4.8)

15.12 (384)

14.75 (375)

18–150

18–300

16.19 (411)

16.19 (411)

21.00 (533)

21.00 (533)

27.00 (686)

30.12 (765)

25.00 (635)

28.00 (711)

0.19 (4.8)

0.19 (4.8)

17.09 (434)

16.35 (415)

20–150

20–300

17.20 (437)

17.20 (437)

23.00 (584)

23.00 (584)

30.00 (762)

33.25 (845)

27.50 (698)

30.50 (774)

0.19 (4.8)

0.19 (4.8)

18.96 (482)

18.21 (463)

24–150

24–300

19.48 (495)

19.48 (495)

27.25 (692)

27.25 (692)

36.00 (914)

39.64 (1007)

32.00 (813)

36.00 (914)

0.19 (4.8)

0.19 (4.8)

22.94 (583)

22.06 (560)

30

36

22.23 (565)

26.10 (663)

33.80 (859)

40.27 (1023)

37.25 (946)

40.88 (1038)

38.75 (984)

46.00 (1168)

0.19 (4.8)

0.19 (4.8)

28.75 (730)

29.08 (739)

(1) AS2129 Table D and E flange dimensions match ANSI 150# dimensions.(2) 30- and 36-inch AWWA C207 Table 2 Class D rated to 150 psi at 150 °F.(3) When 2 grounding rings are specified, add 0.25 inch (6.35 mm) for 0.50- through 14-inch (15 through 350 mm) flowtubes, add 0.50 inch (12.7 mm) for

16-inch (400 mm) and larger. When lining protectors are specified, add 0.25 inch (6.35 mm) for ½- through 12-inch (15 through 300 mm) flowtubes, add 0.50 inch (12.7 mm) for 14- through 36-inch (350 through 900 mm) flowtubes.

A-18

Page 89: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual 00809-0100-4793, Rev CA

August 2004 Rosemount 8742C

Table A-9. Rosemount 8705 Flowtube Dimensions with DIN Flanges in Millimeters (Inches)

Line Size(1)

and Flange

Rating

Body Height

“H”

Liner Face

Diameter

“A”

Overall Flowtube

Length “L”(2)Flange Diameter

“D” Liner Thickness Inside Diameter

15 mm PN 10–40 171 (6.75) 45 (1.77) 200 (7.88) 95 (3.74) 2.3 (0.09) 12.5 (.49)

25 mm PN 10–40 171 (6.75) 68 (2.68) 200 (7.88) 115 (4.53) 2.3 (0.09) 23.1 (.91)

40 mm PN 10–40 180 (7.10) 88 (3.46) 200 (7.87) 150 (5.91) 3.1 (0.12) 37 (1.44)

50 mm PN 10–40 180 (7.10) 102 (4.02) 200 (7.87) 165 (6.50) 3.1 (0.12) 49 (1.91)

80 mm PN 10–40 206 (8.10) 138 (5.43) 200 (7.87) 200 (7.87) 3.8 (0.15) 75.2 (2.96)

100 mm PN 10–16 215 (8.45) 162 (6.38) 250 (9.84) 220 (8.66) 3.8 (0.15) 100.6 (3.96)

100 mm PN 25–40 215 (8.45) 162 (6.38) 250 (9.84) 235 (9.25) 3.8 (0.15) 100.6 (3.96)

150 mm PN 10 240 (9.45) 212 (8.35) 300 (11.81) 285 (11.22) 4.7 (0.19) 152 (5.98)

150 mm PN 16 240 (9.45) 215 (8.46) 300 (11.81) 220 (8.66) 4.7 (0.19) 152 (5.98)

150 mm PN 25 240 (9.45) 218 (8.58) 300 (11.81) 300 (11.81) 4.7 (0.19) 152 (5.98)

150 mm PN 40 240 (9.45) 218 (8.58) 332 (13.07) 300 (11.81) 4.7 (0.19) 144 (5.67)

200 mm PN 10 265 (10.42) 268 (10.55) 350 (13.78) 240 (13.39) 4.9 (0.19) 202 (7.94)

200 mm PN 16 265 (10.42) 268 (10.55) 350 (13.78) 340 (13.39) 4.9 (0.19) 202 (7.94)

200 mm PN 25 265 (10.42) 278 (10.94) 350 (13.78) 360 (14.17) 4.9 (0.19) 202 (7.94)

200 mm PN 40 265 (10.42) 285 (11.22) 396 (15.60) 375 (14.76) 4.3 (0.17) 194 (7.64)

250 mm PN 10 299 (11.78) 320 (12.60) 381 (15.00) 395 (15.55) 6.6 (0.26) 251 (9.88)

250 mm PN 16 299 (11.78) 320 (12.60) 381 (15.00) 405 (15.94) 6.6 (0.26) 251 (9.88)

250 mm PN 25 299 (11.78) 335 (13.19) 381 (15.00) 425 (16.73) 6.6 (0.26) 251 (9.88)

250 mm PN 40 299 (11.78) 345 (13.58) 435 (17.13) 450 (17.72) 6.6 (0.26) 240 (9.45)

300 mm PN 10 327 (12.86) 370 (14.57) 457 (18.00) 445 (17.52) 6.6 (0.26) 302 (11.87)

300 mm PN 16 327 (12.86) 378 (14.88) 457 (18.00) 460 (18.11) 6.6 (0.26) 302 (11.87)

300 mm PN 25 327 (12.86) 395 (15.55) 457 (18.00) 485 (19.09) 6.6 (0.26) 302 (11.87)

300 mm PN 40 327 (12.86) 410 (16.14) 512 (20.14) 515 (20.28) 6.6 (0.26) 292 (11.48)

350 mm PN 10 354 (13.92) 430 (16.93) 534 (21.03) 505 (19.88) 7.4 (0.19) 334 (13.16)

350 mm PN 16 354 (13.92) 438 (17.24) 534 (21.03) 520 (20.47) 7.4 (0.19) 334 (13.16)

350 mm PN 25 354 (13.92) 450 (17.72) 534 (21.03) 555 (21.85) 7.4 (0.19) 334 (13.16)

350 mm PN 40 354 (13.92) 465 (18.31) 591 (23.25) 580 (22.83) 7.4 (0.19) 12.79 (325)

400 mm PN 10 379 (14.93) 482 (18.98) 610 (24.00) 565 (22.24) 7.4 (0.19) 384 (15.12)

400 mm PN 16 379 (14.93) 490 (19.29) 610 (24.00) 580 (22.83) 7.4 (0.19) 384 (15.12)

400 mm PN 25 379 (14.93) 505 (19.88) 610 (24.00) 620 (24.41) 7.4 (0.19) 384 (15.12)

400 mm PN 40 379 (14.93) 535 (21.06) 667 (26.25) 660 (25.98) 7.4 (0.19) 375 (14.75)

500 mm PN 10 437 (17.20) 585 (23.03) 762 (30.00) 670 (26.38) 7.4 (0.19) 482 (18.96)

500 mm PN 16 437 (17.20) 610 (24.02) 762 (30.00) 715 (28.15) 7.4 (0.19) 482 (18.96)

500 mm PN 25 437 (17.20) 615 (24.21) 762 (30.00) 730 (28.74) 7.4 (0.19) 482 (18.96)

500 mm PN 40 437 (17.20) 615 (24.21) 845 (33.25) 755 (29.72) 7.4 (0.19) 463 (18.21)

600 mm PN 10 495 (19.48) 685 (26.97) 914 (36.00) 780 (30.71) 7.4 (0.19) 583 (22.94)

600 mm PN 16 495 (19.48) 725 (28.54) 914 (36.00) 840 (33.07)) 7.4 (0.19) 583 (22.94)

600 mm PN 25 495 (19.48) 720 (28.35) 914 (36.00) 845 (33.27) 7.4 (0.19) 581 (22.87)

Dimensions with DIN Flanges

(1) Consult factory for larger line sizes.(2) When 2 grounding rings are specified, add 6.35 mm (0.25 in.) for 15 mm through 350 mm (½- through 14 in.) flowtubes or 12.7 mm (0.50 in.) for 400 mm

(16 in.) and larger. When lining protectors are specified, add 6.35 mm (0.25 in.) for 15 mm through 300 mm (½- through 12-in.) flowtubes, 12.7 mm (0.50 in.) for 350 mm through 900 mm (14- through 36-in.) flowtubes.

A-19

Page 90: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual00809-0100-4793, Rev CA

August 2004Rosemount 8742C

FIGURE 5. Rosemount 8711 Dimensional Drawings (0.15-inch through 1-inch line sizes)

A

B”

Flow

5.00

(127)

D

Grounding Clamp

¾–14 NPTConduit

Connection(2 places)

C

NOTE

Dimensions are in

inches (millimeters)

See Table A-10 for

variable dimensions

8711

-101

2B03

B, 1

012A

03B

2.6

(66)

1.8

(46)

4.02 (102)

FIGURE 6. Rosemount 8711 Dimensional Drawings (1.5-inch through 8-inch line sizes)

B

A

2.6

(66)

1.8

(46)

4.02 (102) 5.00 (127)

NOTE

Dimensions are in inches (millimeters)

See Table A-10 for variable

Flow

D

Grounding

Clamp

C

8711-1

012B

04B

, 1012A

04B

¾–14 NPT

Conduit

Connection

(2 places)

A-20

Page 91: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual 00809-0100-4793, Rev CA

August 2004 Rosemount 8742C

Table A-10. Rosemount 8711 Flowtube Dimensions and Weight

Nominal

Line Size

Inches (mm)

Flowtube Housing Dimensions

Flowtube Length

“D” Inside Diameter

Weight

lb (kg)“A” Max. “B” “C”

0.15(1)

0.30(1)

(4)

(8)

4.00

4.00

(102)

(102)

5.44

5.44

(138)

(138)

3.56

3.56

(90)

(90)

2.17

2.17

(55)

(55)

.150

.300

(4)

(7)

4

4

(2)

(2)

0.5

1

1.5

(15)

(25)

(40)

4.00

4.31

4.42

(102)

(109)

(112)

5.44

6.06

7.41

(138)

(154)

(188)

3.56

4.50

3.28

(90)

(114)

(83)

2.17

2.17

2.73

(55)

(55)

(69)

.593

.970

1.50

(15)

(24)

(38)

4

5

5

(2)

(2)

(2)

2

3

4

(50)

(80)

(100)

4.64

5.26

5.87

(118)

(134)

(149)

7.94

9.19

10.41

(202)

(233)

(264)

3.91

5.16

6.38

(99)

(131)

(162)

3.26

4.68

5.88

(83)

(119)

(149)

1.92

2.79

3.70

(50)

(76)

(99)

7

13

22

(3)

(6)

(10)

6

8

(150)

(200)

6.97

8.00

(177)

(2003)

12.60

14.66

(320)

(372)

8.56

10.63

(217)

(270)

6.87

8.86

(174)

(225)

5.825

7.875

(148)

(200)

35

60

(16)

(27)

(1) 0.15 and 0.30 inch (4 and 8 mm) flowtubes mount between ½-inch (13 mm) flange.

FIGURE 7. Rosemount 8714D Calibration Standard

2.69

(68.3)

4.13

(104.9)

7.19

(182.6)

Rosemount 8732C Connector Type

Rosemount 8712D Connector Type

8714

-871

4ANote:

The Rosemount 8714D is shipped with

both the 8712D and 8732C Connector

Types

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Page 92: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual00809-0100-4793, Rev CA

August 2004Rosemount 8742C

ORDERING INFORMATION

Rosemount 8742C

Model Product Description Availability

8742C Magnetic Flowmeter Transmitter with FOUNDATION fieldbus (flowtube ordered separately) •

Code Transmitter Output

F FOUNDATION fieldbus protocol, comes with standard Analog Input Integrator Function block and

Backup LAS

Code Power Supply Voltage

AC 90–250 V ac, 50–60 Hz •

DC 15-50 V dc •

Code Product Certifications

N0 Factory Mutual (FM) Class I, Division 2, Class II/III Division 1, approval for nonflammable fluids;

Canadian Standards Association (CSA) Class I, Division 2 Approval

CE Marking;

N5 Factory Mutual (FM) Class I, Division 2, Class II/III Division 1, approval for flammable fluids •

E1 EEx de IIB + H2 T6, Hydrogen •

E5(1) Factory Mutual (FM) Class I, Division 1, Class II/III Division 1, explosion proof approval •

ED ATEX EEx d IIB T6, Flame-proof approval •

K0 Factory Mutual (FM) Class I, Division 2, Class II/III Division 1, approval and

Canadian Standards Association (CSA) Class 1, Division 2,

Class II/III Division 1 with intrinsically safe fieldbus output

K1 ATEX EEx de [ia] IIB + H2 T6

Hydrogen gas flameproof approval with intrinsically safe fieldbus output and FISCO compliant

K5(1) Factory Mutual (FM) Class I, Division 1, Explosion Proof with intrinsically safe Fieldbus output •

KD ATEX EEx d [ia] IIB T6, Flame-proof approval with intrinsically safe Fieldbus output and FISCO compliant •

Code Options

PlantWeb Software Functions •

A01 Proportional/Integral/Derivative (PID) function blocks •

D01 Product and process diagnostics: grounding/wiring diagnostic, electrode fault diagnostic,

and high process noise detection

D11 Product diagnostic: grounding/wiring diagnostic and electrode fault diagnostic •

D21 Process diagnostic: high process noise detection •

Transmitter Options •

B4 Remote Mount for 2” Pipe Mount Bracket (transmitter junction box and mounting bracket included)(1) •

C1 Custom Configuration (completed configuration data sheet (CDS) required with order) •

D1 High Accuracy Calibration [0.25% of rate from 3 to 30 ft/s (0.9 to 10m/s)] matched flowtube •

DT Heavy Duty Tagging •

J1 CM 20 Conduit Adapter •

J2 PG 13.5 Conduit Adapter •

M5 Local Display •

Conduit Electrical Connector

GE(2) M12, 4-pin, Male Connector (eurofast®)

GM(2) A size Mini, 4-pin, Male Connector (minifast®)

Continued on Next Page

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Page 93: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual 00809-0100-4793, Rev CA

August 2004 Rosemount 8742C

Code Quick Installation Guide (QIG) Language Options (Default is English)

YA Danish QIG •

YD Dutch QIG •

YF French QIG •

YG German QIG •

YH Finnish QIG

YI Italian QIG •

YN Norwegian QIG •

YP Portuguese QIG •

YS Spanish QIG

YW Swedish QIG •

Typical Model Number: 8742C F AC N 0 A 0 1

(1) Only available with Rosemount 8711 Integral Mount flowtube(2) Not available with certain hazardous location certifications. Contact a Rosemount representative for details.

A-23

Page 94: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual00809-0100-4793, Rev CA

August 2004Rosemount 8742C

Rosemount 8705

Code Product Description Availability

8705 Magnetic Flowmeter Flowtube •

Code Lining Material

A PFA •

T Teflon (PTFE) •

F Tefzel (ETFE) •

P Polyurethane •

N Neoprene •

L Linatex natural rubber •

Other lining materials available upon request. Consult factory. For availability by Line Size; see chart below •

Code Electrode Material / Electrode Type

Two Measurement Electrodes

SA 316L Stainless Steel •

HA Hastelloy C-276 •

TA Tantalum •

PA 90% Platinum—10% Iridium •

NA Titanium •

Two Measurement Electrodes + Third Grounding Electrode

(Not available with W3 on electrode housing configuration on 8” (200 mm) and under line sizes.)

SE 316L Stainless Steel •

HE Hastelloy C-276 •

TE Tantalum •

PE 90% Platinum—10% Iridium •

NE Titanium •

Two Bulletnose Measurement Electrodes

(Available in 2-inch (50 mm) and larger sizes only)

SB 316L Stainless Steel •

HB Hastelloy C-276 •

Two Removable Measurement Electrodes

(Available in 2-inch (50 mm) and larger sizes only); requires W3 option

SR 316L Stainless Steel •

HR Hastelloy C-276 •

Other electrode materials and types available upon request. Consult factory.

Lining Material (from above)

Code Line Size Code A Code T Code F Code P

Code

N, and L

005 ½ inch (15 mm) NA • • NA NA

010 1 inch (25 mm) • • • • •

015 1½ inch (40 mm) • • • • •

020 2 inch (50 mm) • • • • •

030 3 inch (80 mm) • • • • •

040 4 inch (100 mm) • • • • •

060 6 inch (150 mm) • • • • •

080 8 inch (200 mm) • • • • •

100 10 inch (250 mm) • • • • •

120 12 inch (300 mm) • • • • •

140 14 inch (350 mm) NA • • • •

160 16 inch (400 mm) NA • • • •

180 18 inch (450 mm) NA • NA • •

200 20 inch (500 mm) NA • NA • •

240 24 inch (600 mm) NA • NA • •

300 30 inch (750 mm) NA • NA • •

360 36 inch (900 mm) NA • NA • •

Continued on Next Page

A-24

Page 95: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual 00809-0100-4793, Rev CA

August 2004 Rosemount 8742C

Code Flange Material, Type, and Rating Availability

C1 Carbon Steel, ASME B16.5 (ANSI) Class 150 (30- and 36-inch AWWA C207 Table 3 Class D Flat Face) •

C2 Carbon Steel, MSS SP44 Class 150 (30-inch [750 mm] only) •

C3 Carbon Steel, ASME B16.5 (ANSI) Class 300 •

C6 Carbon Steel, ASME B16.5 (ANSI) Class 600 (1)

(maximum pressure: 1000 psig; available in 0.5- through 10-inch [15 through 250 mm])

C7 Carbon Steel, ASME B16.5 (ANSI) Class 600 (2)

(with lining material codes P, N, and L only; available in 1- through 8-inch [25 through 200 mm])

C9 Carbon Steel, ASME B16.5 (ANSI) Class 900 (2) (3)

(with lining material codes, P, N, L only, available in 1- through 8- [25 through 200mm])

S1 304 Stainless Steel, ASME B16.5 (ANSI) Class 150

(30- and 36-inch AWWA C207 Table 3 Class D Flat Face)

S2 304 Stainless Steel, MSS SP44 Class 150 (30- through 36-inch [750 through 900 mm] only) •

S3 304 Stainless Steel, ASME B16.5 (ANSI) Class 300 •

S6 304 Stainless Steel, ASME B16.5 (ANSI) Class 600(1)

(maximum pressure: 1000 psig; available in 0.5- through 10-inch [15 through 250 mm])

S7 304 Stainless Steel, ASME B16.5 (ANSI) Class 600(2)

(lining material codes P, N, and L only; available in 1- through 8-inch [25 through 200 mm])

S9 304 Stainless Steel, ASME B16.5 (ANSI) Class 900 (2) (3)

(with lining material codes, P, N, L only, available in 1- through 8- [25 through 200mm])

P1 316 Stainless Steel, ASME B16.5 (ANSI) Class 150

(1/2- and 24-inch AWWA C207 Table 2 Class D Flat Face), pipe and flange

P3 316 Stainless Steel, ASME B16.5 (ANSI) Class 300, pipe and flange •

CD Carbon Steel, DIN PN 10 (not available for flange sizes 15 to 150 mm) •

CE Carbon Steel, DIN PN 16 (not available for flange sizes 15 to 80 mm) •

CF Carbon Steel, DIN PN 25 (not available for flange sizes 15 to 150 mm) •

CH Carbon Steel, DIN PN 40 (not available for flange sizes 750 to 900 mm) •

CK Carbon Steel, AS2129 Table D (available flange sizes 15 to 900 mm) (4) •

CL Carbon Steel, AS2129 Table E (available flange sizes 15 to 900 mm) (4) •

SD Stainless Steel, DIN PN 10 (not available for flange sizes 15 to 150 mm) •

SE Stainless Steel, DIN PN 16 (not available for flange sizes 15 to 80 mm) •

SF Stainless Steel, DIN PN 25 (not available for flange sizes 15 to 150 mm) •

SH Stainless Steel, DIN PN 40 (not available for flange sizes 750 to 900 mm) •

Other flange materials, types, and ratings available upon request. Consult factory.

Code Electrode Housing Configuration

W0 Sealed, welded housing •

W1 Sealed, welded housing with pressure relief •

W3 Sealed, welded housing with separate electrode compartments •

Code Product Certifications

N0 Factory Mutual (FM) Class I, Division 2 Approval for nonflammable fluids;

Canadian Standards Association (CSA) Class I, Division 2 Approval,

CE Marking

N5 Factory Mutual (FM) Class I, Division 2 Approval for flammable fluids •

E1(5) ATEX EEx e ia IIC T3...T6, Increased Safety Approval (with intrinsically safe electrode) •

KD ATEX EEx e ia IIC T3...T6, Increased Safety Approval (with intrinsically safe electrode) •

N1 ATEX EEx nA [L] IIC Type n Approval •

Continued on Next Page

A-25

Page 96: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual00809-0100-4793, Rev CA

August 2004Rosemount 8742C

Code Options Continued Availability

Optional Grounding Rings (6)

G1 316L SST Grounding Rings •

G2 Hastelloy C-276 Grounding Rings (0.5- through 12-inch (15 through 300 mm) flowtube line sizes) •

G3 Titanium Grounding Rings (0.5- through 12-inch (15 through 300 mm) flowtube line sizes) •

G4 Tantalum Grounding Rings (0.5- through 8-inch (15 through 200 mm) flowtube line sizes) •

G5 Single 316L SST Grounding Ring •

G6 Single Hastelloy C-276 Grounding Ring (0.5- through 12-inch (15 through 300 mm) flowtube line sizes) •

G7 Single Titanium Grounding Ring (0.5- through 12-inch (15 through 300 mm) flowtube line sizes) •

G8 Single Tantalum Grounding Ring (0.5- through 8-inch (15 through 200 mm) flowtube line sizes) •

Optional Lining Protectors(6)

L1 316L SST Lining Protectors •

L2 Hastelloy C-276 Lining Protectors (0.5- to 12-inch (15 to 300 mm) flowtube line sizes) •

L3 Titanium Lining Protectors (0.5- to 12-inch (15 to 300 mm) flowtube line sizes) •

Optional Sanitary Connections(7)

A3 Sanitary 3-A (0.5- to 3-inch (15 to 80 mm) sizes only);

ASME B16.5 (ANSI) Class 150 to Tri-Clamp Adapter

A4 Sanitary 3-A (2.5-inch (64 mm) sizes only); ASME B16.5 (ANSI) Class 150 to Tri-Clamp Adapter •

A5 Cherry Burrell Sanitary I-line (0.5- to 3-inch (15 to 80 mm) sizes only);

ASME B16.5 (ANSI) Class 150 to I-line Adapter

A6 Cherry Burrell Sanitary I-line (2.5-inch (64 mm) sizes only);

ASME B16.5 (ANSI) Class 150 to I-Line Adapter

Continued on Next Page

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Page 97: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual 00809-0100-4793, Rev CA

August 2004 Rosemount 8742C

Code Options Continued

Other Options

B3 Integral Mount with Rosemount 8732C/8742C Transmitter •

D1 High Accuracy Calibration [0.25% of rate from 3-30 ft/s (0.9-10 m/s)]

matched flowtube and transmitter system(8)

DT Heavy Duty Tagging •

DW NSF Drinking Water Certification 24 inch (600mm) (0.5- to 24-inch [15 to 600 mm] sizes only)

PTFE Teflon or ETFE liners (0.5- through 24-inch [15 through 600mm]),

SS electrode material (9)

H1 Rosemount 8701 flowtube lay length (available for 0.5- to 12-inch (15 to 300 mm) line sizes);

spool piece or spacer: ASME B16.5 (ANSI) Class 150 or Class 300 flange and 304 stainless steel pipe

H2 Rosemount 8701 Flowtube lay length (available for 0.5- to 16-inch (15-400 mm) line sizes.) •

H5 Foxboro® Model 2800 lay length (available for 3.0 to 18 inch (80 to 450mm line sizes)) spool piece: ASME

B16.5 (ANSI) Class 150 flange and 304 stainless steel pipe.

H7 ABB Fischer & Porter® Model CopaX and MagX lay length (available for 0.5 to 12in (15 to 3000 mm line

sizes)) spool piece: ASME B16.5 (ANSI) Class 150 flange and 304 stainless steel pipe.

J1 CM20 Conduit Adapter •

J2 PG13.5 Conduit Adapter •

Q4 Inspection Certificate-Calibration Data, ISO 10474 3.1B, (Flow Cal., 1-10ft/s [0.3-3 m/s]) •

Q5 (11) Hydrostatic Testing Certification (place on sales order, not on model string) •

Q8 Material Traceability Certificate per DIN 3.1 B •

Q9 Material Traceability Certificate (electrodes only) per DIN 3.1B 337 •

Q15(10) (11) NACE Certificate •

Q66 Welding Procedure Qualification Record Documentation •

Q67 Welder Performance Qualification Record Documentation •

Q68 (12) Welding Procedure Specification Documentation •

Q70 Inspection Certificate Weld Examination, ISO 10474 3.1B (½- to 12-inch [15-300 mm], 14- to 18-inch

[350-450 mm], and 20- to 36-inch [500-900 mm] flowtube line sizes only – see pricing below)

– 0.5- to 12-inch [15-300 mm] flowtube line sizes

– 14- to 18-inch [350-450 mm] flowtube line sizes •

– 20- to 36-inch [500-900 mm] flow tube line sizes

Typical Model Number: 8705 T SA 040 C1 W0 N0

(1) Electrode options limited to two measurement electrodes or two measurement electrodes + third grounding electrode.(2) Electrode options limited to two measurement electrodes or two measurement electrodes only.(3) Lining Protectors not available.(4) Option code limited to Liner material T, P, or F; cannot be ordered with ground rings, lining protectors AX or HX options.(5) For use with E1 / K1 transmitter.(6) Grounding Rings and Lining Protectors provide the same fluid grounding function. Lining Protectors available in Teflon (PTFE) and Tefzel (ETFE) only.(7) Sealed, welded housing (Option Code W0 or W1) required. Only available with Teflon (PTFE) lining material (Option Code T) and 316L Stainless Steel,

Hastelloy C-276, and 90% Platinum-10% Iridium electrode material (Option Codes S, H, and P). Not available with integral mount Rosemount 8712 transmitter. Sanitary connection codes A4 and A6 only available in line size code 020.

(8) Option Code must be ordered for both flowtube and transmitter.(9) Pending approval, consult factory for availability.(10) Order as a separate line item. (11) Order by placing model code in manufacturing notes on sales order. This code does not belong in the model string.(12) Order as a separate line item, this code does not belong in the model string.

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Page 98: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual00809-0100-4793, Rev CA

August 2004Rosemount 8742C

Rosemount 8707

Code Product Description Availability

8707 High-Signal Magnetic Flowmeter Flowtube •

Code Lining Material

A PFA (1)

T Teflon (PTFE) •

F Tefzel (ETFE) •

P Polyurethane •

N Neoprene •

L Linatex natural rubber •

Other lining materials available upon request. Consult factory. For availability by Line Size, see chart below. •

Code Electrode Material / Electrode Type

Two Measurement Electrodes

SA 316L Stainless Steel •

HA Hastelloy C-276 •

TA Tantalum •

PA 90% Platinum —10% Iridium •

NA Titanium •

Two Measurement Electrodes + Third Grounding Electrodes (2)

SE 316L Stainless Steel •

HE Hastelloy C-276 •

TE Tantalum •

PE 90% Platinum —10% Iridium •

NE Titanium •

Two Bulletnose Measurement Electrodes (Available in 2-inch (50 mm) and larger line sizes only)

SB 316L Stainless Steel •

HB Hastelloy C-276 •

Lining Material (from above)

Code Line Size Code A Code T Code F

Code

P, N, and L

030 3 inch (80 mm) • • • •

040 4 inch (100 mm) • • • •

060 6 inch (150 mm) • • • •

080 8 inch (200 mm) • • • •

100 10 inch (250 mm) • • • •

120 12 inch (300 mm) • • • •

140 14 inch (350 mm) NA • • •

160 16 inch (400 mm) NA • • •

180 18 inch (450 mm) NA • NA •

200 20 inch (500 mm) NA • NA •

240 24 inch (600 mm) NA • NA •

300 30 inch (750 mm) NA • NA •

360 36 inch (900 mm) NA • NA •

Code Flange Material, Type, and Rating

C1 Carbon Steel, ASME B16.5 (ANSI) Class 150 (30- and 36-inch AWWA C207 Table 2 Class D Flat Face) •

C2 Carbon Steel, MSS SP44 Class 150 (30-inch [750 mm] only) •

C3 Carbon Steel, ASME B16.5 (ANSI) Class 300 •

S1 304 Stainless Steel, ASME B16.5 (ANSI) Class 150 (30- and 36-inch AWWA C207 Table 2 Class D Flat Face) •

S2 304 Stainless Steel, MSS SP44 Class 150 (30- through 36-inch [750 through 900 mm] only) •

S3 304 Stainless Steel, ASME B16.5 (ANSI) Class 300 •

Continued on Next Page

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Page 99: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual 00809-0100-4793, Rev CA

August 2004 Rosemount 8742C

Code Housing Configuration Availability

W0 Sealed, welded housing •

W1 Sealed, welded housing with pressure relief •

W3 Sealed, welded housing with separate electrode compartments •

Code Product Certifications

N0 Factory Mutual (FM) Class I, Division 2 Approval for nonflammable fluids;

Canadian Standards Association (CSA) Class I, Division 2 Approval

N5 Factory Mutual (FM) Class 1, Division 2 Approval for flammable fluids •

Code Options

Optional Grounding Rings(3)

G1 316L SST Grounding Rings •

G2 Hastelloy C-276 Grounding Rings (3- through 12-inch (80 through 300 mm) flowtube line sizes) •

G3 Titanium Grounding Rings (3- through 12-inch (80 through 300 mm) flowtube line sizes) •

G4 Tantalum Grounding Rings (3- through 8-inch (80 through 200 mm) flowtube line sizes) •

G5 Single 316L SST Grounding Ring •

G6 Single Hastelloy C-276 Grounding Ring (3- through 12-inch (80 through 300 mm) flowtube line sizes) •

G7 Single Titanium Grounding Ring (3- through 12-inch (80 through 300 mm) flowtube line sizes) •

G8 Single Tantalum Grounding Ring (3- through 8-inch (80 through 200 mm) flowtube line sizes) •

Optional Lining Protectors(3)

L1 316L SST Lining Protectors

L2 Hastelloy C-276 Lining Protectors (3- through 12-inch (80 through 300 mm) flowtube line sizes) •

L3 Titanium Lining Protectors (3- through 12-inch (80 through 300 mm) flowtube line sizes) •

Other Options

B3 Integral Mount with Rosemount 8732C (8742C) transmitter •

D1 High Accuracy Calibration [0.25% of rate from 3-30 ft/s (0.9-10 m/s)] matched flowtube and transmitter system(4) •

D2 Dual Flowtube Calibration Numbers on Rosemount 8712H and 8712C Transmitters •

DT Heavy Duty Tagging •

H1 Rosemount 8703 flowtube lay length (available for 3- through 4-inch (80 through 100 mm) line sizes);

spool piece: ASME B16.5 (ANSI) Class 150 or Class 300 flange and 304 stainless steel pipe

H2 Rosemount 8703 flowtube lay length (available for 3- through 16-inch (80 through 400 mm) line sizes •

H5 Foxboro® Model 2800 lay length (available for 3.0 through 18 inch (80 through 450mm line sizes)) spool piece:

ASME B16.5 (ANSI) Class 150 flange and 304 stainless steel pipe.

H7 ABB Fischer & Porter® Model CopaX and MagX lay length (available for 0.5 through 12in (15 through 3000 mm

line sizes)) spool piece: ASME B16.5 (ANSI) Class 150 flange and 304 stainless steel pipe or teflon spacer.

J1 CM20 Conduit Adapter •

J2 CM13.5 Conduit Adapter •

Q4 Inspection Certificate-Calibration Data, ISO 10474 3.1B, (Flow Cal., 1-10ft/s [0.3-3 m/s]) •

Q5 Hydrostatic Testing Certification •

Q8 Material Traceability Certificate per DIN 3.1 B •

Q9 Material Traceability Certificate (electrodes only) per DIN 3.1B 337 •

Q15 NACE Certification (5) •

Q66 Welding Procedure Qualification Record Documentation •

Q67 Welder Performance Qualification Record Documentation •

Q68 Welding Procedure Specification Documentation •

Q70 Inspection Certificate Weld Examination, ISO 10474 3.1B (3- to 12-inch [80-300 mm], 14- to 18-inch

[350-450 mm], and 20- to 36-inch [500-900 mm] flowtube line sizes only – see pricing below)

– 3- to 12-inch [80-300 mm] flowtube line sizes •

– 14- to 18-inch [350-450 mm] flowtube line sizes •

– 20- to 36-inch [500-900 mm] flow tube line sizes •

Typical Model Number: 8707 T SA 040 C1 W0 N0

(1) Electrode options limited to two Hastelloy C-276 or two 90% Platinum-10% Iridium electrode material. Cannot be ordered with 300# lining protectors or Quality Certificates Q8, Q9, Q66, Q67, Q68, or Q70.

(2) Available for 10 inch and larger line sizes only.(3) Grounding Rings and Lining Protectors provide the same fluid grounding function. Lining Protectors available with Teflon (PTFE) and Tefzel (ETFE) lining

material only.(4) Option Code must be ordered for both flowtube and transmitter.(5) Order as a separate line item.

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Page 100: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual00809-0100-4793, Rev CA

August 2004Rosemount 8742C

Rosemount 8711

Model Product Description Availability

8711 Magnetic Flowmeter Flowtube (flangeless construction) •

Code Lining Material

T Tefzel (ETFE) •

S Teflon (PTFE) (not available with 0.15 and 0.30 inch [4 and 8 mm] line sizes) •

Code Electrode Material / Electrode Type

Two Measurement Electrodes

SA 316L Stainless Steel •

HA Hastelloy C-276 •

TA Tantalum •

PA 90% Platinum—10% Iridium •

NA Titanium •

Two Measurement Electrodes + Third Grounding Electrode

SE 316L Stainless Steel •

HE Hastelloy C-276 •

TE Tantalum •

PE 90% Platinum—10% Iridium •

NE Titanium •

Two Bulletnose Measurement Electrodes (Available in 2-inch (50 mm) and larger line sizes only)

SB 316L Stainless Steel •

HB Hastelloy C-276 •

Lining Material (from above)

Code Line Size Code T Code S

15F 0.15 inch (4 mm) (not available with Teflon (PTFE) lining material) • NA

30F 0.30 inch (8 mm) (not available with Teflon (PTFE) lining material) • NA

005 ½ inch (15 mm) • •

010 1inch (25 mm) • •

015 1½ inch (40mm) • •

020 2 inch (50mm) • •

030 3 inch (80 mm) • •

040 4 inch (100 mm) • •

060 6 inch (150 mm) • •

080 8 inch (200 mm) • •

Code Line Size

15F 0.15 inch (4 mm) (not available with Teflon (PTFE) lining material) •

30F 0.30 inch (8 mm) (not available with Teflon (PTFE) lining material) •

005 ½ inch (15 mm) •

010 1inch (25 mm) •

015 1½ inch (40mm) •

020 2 inch (50mm) •

030 3 inch (80 mm) •

040 4 inch (100 mm) •

060 6 inch (150 mm) •

080 8 inch (200 mm) •

Code Transmitter Mounting Configuration

R Remote •

U Integral, mounted to Rosemount 8732C/8742C transmitter •

Continued on Next Page

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Page 101: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual 00809-0100-4793, Rev CA

August 2004 Rosemount 8742C

Rosemount 8714

Code Mounting Kit Availability

Expanded Kit: includes two alignment rings (where applicable), threaded SST studs, and nuts

1 ASME B16.5 (ANSI) Class 150 •

2 DIN PN 10/16 (8 inch [200 mm] has a PN 10 mounting kit only) •

3 ASME B16.5 (ANSI) Class 300 •

4 DIN PN 25/40 (8 inch [200 mm] has a PN 25 mounting kit only) •

Standard Kit: includes two alignment rings (where applicable)

5 ASME B16.5 (ANSI) Class 150 •

6 DIN PN 10/16 (8 inch [200 mm] has a PN 10 alignment rings only) •

7 ASME B16.5 (ANSI) Class 300 •

8 DIN PN 25/40 (8 inch [200 mm] has a PN 25 alignment rings only) •

Code Product Certifications

N0 Factory Mutual (FM) Class I, Division 2 Approval for nonflammable fluids;

Canadian Standards Association (CSA) Class I, Division 2 Approval;

CE Marking

N5 Factory Mutual (FM) Class 1, Division 2 Approval for flammable fluids •

N1 ATEX EEx nA [L] IIC Type n Approval •

E1(1) ATEX EEx e ia IIC T3...T6, increased safety approval with intrinsically safe electrodes •

E5 Factory Mutual (FM) Class 1, Division 1, Explosion-Proof Approval

(available with integral mount Rosemount 8732C or remote mount transmitters)

CD ATEX EEx e ia IIC Increased Safety Approval with intrinsically safe electrodes •

Code Options

D1 High Accuracy Calibration [0.25% of rate from 3-30 ft/s (0.9-10m/s)] matched flowtube and transmitter •

DT Heavy Duty Tagging •

DW NSF Drinking Water Certification (Stainless steel electrode material only) •

G1 316L SST Grounding Rings •

G2 Hastelloy C-276 Grounding Rings •

G3 Titanium Grounding Rings •

G4 Tantalum Grounding Rings •

J1 CM20 Conduit Adapter •

J2 CM13.5 Conduit Adapter •

Q4 Inspection Certificate-Calibration Data, ISO 10474 3.1B, (Flow Cal., 1-10ft/s [0.3-3 m/s]) •

Q5 Hydrostatic Testing Certification (place on sales order, not on model string) •

Q8 Material Traceability Certificate per DIN 3.1B •

Q9 Material Traceability Certificate (Electrodes only) per DIN 3.1B •

Q15 NACE Certification (2) •

Q66 Welding Procedure Qualification Record Documentation (6- and 8-inch (150- and 200mm) line sizes only) •

Q67 Welder Performance Qualification Record Documentation •

Q68 Welding Procedure Specification Documentation •

Q70 Inspection Certificate Weld Examination, ISO 10474 3.1B (.15- to 8-inch [4-200 mm] flowtube line size only –

see pricing below)

–.15 through 8-inch [4- through 300 mm] flowtube line sizes •

Typical Model Number: 8711 T SA 030 U 5 N0

(1) For use with E1 / K1 transmitter.(2) Order as a separate line item.

Model Description Availability

8714DQ4 Reference Calibration Standard •

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Appendix B Product Certifications

European Directive Information . . . . . . . . . . . . . . . . . . . . page B-1

Hazardous Location Certifications . . . . . . . . . . . . . . . . . . page B-3

Approved Manufacturing Locations

Rosemount Inc. — Eden Prairie, Minnesota, USA

Fisher-Rosemount Technologias de Flujo, S.A. de C.V. —

Chihuahua, Chihuahua, Mexico

EUROPEAN DIRECTIVE INFORMATION

The EC declaration of conformity for all applicable European directives for this

product can be found on our website at www.rosemount.com. A hard copy

may be obtained by contacting our local sales office.

ATEX Directive Rosemount Inc. complies with the ATEX Directive.

Type n protection type in accordance with EN50 021

• Closing of entries in the device must be carried out using the appropriate

EExe or EExn metal cable gland and metal blanking plug or any

appropriate ATEX approved cable gland and blanking plug with IP66 rating

certified by an EU approved certification body.

European Pressure Equipment Directive (PED) (97/23/EC)

Model 8705 Magnetic Flowmeter flowtubes in line size and flange

combinations:

Line Size: 1 1/2 inch - 3 inch with all flanges available.

Line Size: 4 inch - 24 inch with all DIN flanges and ANSI 150 and

ANSI 300 flanges.

Line Size: 30 inch - 36 inch with AWWA 125 flanges

QS Certificate of Assessment - EC No. PED-H-20

Module H Conformity Assessment

Model 8711 Magnetic Flowmeter Flowtubes

Line Sizes: 1.5, 2, 3, 4, 6, and 8 inch

QS Certificate of Assessment - EC No. PED-H-20

Module H Conformity Assessment

Model 8721 Sanitary Magmeter Flowtubes

in line sizes of 11/2 inch and larger:

Module A Conformity Assessment

www.rosemount.com

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All other Model 8705/8711/8721 Flowtubes —

in line sizes of 1 inch and less:

Sound Engineering Practice

Flowtubes that are SEP are outside the scope of PED and cannot be marked

for compliance with PED.

Mandatory CE-marking for flowtubes in accordance with Article 15 of the PED

can be found on the flowtube body (CE 0575).

Flowtube category I is assessed for conformity per module A procedures.

Flowtube categories II – IV, use module H for conformity assessment

procedures.

Electro Magnetic Compatibility (EMC) (89/336/EEC)

All Models EN 50081-1: 1992, EN 50082-2: 1995,

EN 61326: 1997/ A1:1998 / A2:2000

Installed signal wiring should not be run together and should not be in the

same cable tray as AC power wiring.

Device must be properly grounded or earthed according to local electric

codes.

To improve protection against signal interference, shielded cable is

recommended.

Low Voltage Directive (93/68/EEC)

All Models 8732, Model 8742C - AC

EN 61010-1: 1995

Other important guidelines

Only use new, original parts.

To prevent the process medium escaping, do not unscrew or remove process

flange bolts, adapter bolts or bleed screws during operation.

Maintenance shall only be done by qualified personnel.

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HAZARDOUS LOCATION CERTIFICATIONS

Equivalent Hazardous Location Certifications for flowtube and transmitter

must match in integrally-mounted magnetic flowmeter systems.

Remote-mounted systems do not require matched hazardous location

certification option codes.

Transmitter Approval Information

North American Certifications

Factory Mutual (FM)

N0 Division 2 Approval

Reference Rosemount Control Drawing 08742-1051 (8742C) or

08732-1052 (8732C).

Class I, Division 2, Groups A, B, C, D

Temp Codes – T4 (8712 at 40°C, 8742 at 60°C),

T5 (8732 at 60°C)

Dust-ignition proof Class II/III, Division 1, Groups E, F, G

Temp Codes – T4 (8712 at 40°C), T6 (8732/8742 at 60°C)

Enclosure Type 4X

K0 Division 2 Approval with

Intrinsically Safe Output

Reference Rosemount Control Drawing 08742-1051

Class I, Division 2, Groups A, B, C, D with IS output for Class I, Division

1, Groups A, B, C, D.

Temp Code – T4 at 60°C

Dust-ignition proof Class II/III, Division 1, Groups E, F, G

Temp Code – T6 at 60°C

Enclosure Type 4X

Table B-1. Transmitter Option Codes

Rosemount 8742 Transmitter

Approval Codes Fieldbus Output I.S. fieldbus Output

CE(1)

N0 •

N5 •

E1 •

E5 •

ED •

K0 • •

K1 •

K5 • •

KD(2) • •

N1(3)

(1) CE Marking is standard on a Rosemount 8712D, 8742 and 8732. Not available on Rosemount 8712H.(2) Refer to Table B-3 on page B-11 for relation between ambient temperature, process temperature, and temperature class.(3) Only available for the 8712D.

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K5 Explosionproof Approval with

Intrinsically Safe Output

Reference Rosemount Control Drawing 08742-1051

Explosion-Proof for Class I, Division 1, Groups C, D with IS output for

Class I, Division 1, Groups A, B, C, D.

Temp Code – T4 at 60°C

Dust-ignition proof Class II/III, Division 1, Groups E, F, G

Temp Code – T6 at 60°C

Class I, Division 2, Groups A, B, C, D

Temp Codes – T4 (8742 at 60°C)

Enclosure Type 4X

N5 Division 2 Approval

For flowtubes with IS electrodes only

Reference Rosemount Control Drawing 08742-1051 (8742C) or

08732-1052 (8732C).

Class I, Division 2, Groups A, B, C, D

Temp Codes – T4 (8712 at 40°C, 8742 at 60°C),

T5 (8732 at 60°C)

Dust-ignition proof Class II/III, Division 1, Groups E, F, G

Temp Codes – T4 (8712 at 40°C), T6 (8732/8742 at 60°C)

Enclosure Type 4X

E5 Explosion-Proof Approval

Reference Rosemount Control Drawing 08732-1052

Explosion-Proof for Class I, Division 1, Groups C, D

Temp Code – T6 at 60°C

Dust-ignition proof Class II/III, Division 1, Groups E, F, G

Temp Code – T6 at 60°C

Class I, Division 2, Groups A, B, C, D

Temp Codes – T4 (8742 at 60°C), T5 (8732 at 60°C)

Enclosure Type 4X

Canadian Standards Association (CSA)

N0 Division 2 Approval

Reference Rosemount Control Drawing 08732-1051

Class I, Division 2, Groups A, B, C, D

Temp Codes – T5 (8732 at 60°C), T4 (8742 at 60°C)

Dust-ignition proof Class II/III, Division 1, Groups E, F, G

Enclosure Type 4X

K0 Division 2 Approval with

Intrinsically Safe Output

Reference Rosemount Control Drawing 08742-1052

Class I, Division 2, Groups A, B, C, D with IS output for Class I, Division

1, Groups A, B, C, D. Temp Code – T4 at 60°C

Dust-ignition proof Class II/III, Division 1, Groups E, F, G

Temp Code – T6 at 60°C

Enclosure Type 4X

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European Certifications

E1 ATEX Flameproof

Hydrogen gas group

8732 - Certificate No.: 03ATEX2052X II 2G

EEx d IIB + H2 T6 (-20°C ≤ Ta ≤ +65°C)

8742 - Certificate No.: 03ATEX2159X II 2G

EEx de IIB + H2 T6 (-20°C ≤ Ta ≤ +65°C)

When installed per drawing 08732-1050

Vmax = 250 V AC or 50 V DC

0575

ED ATEX Flameproof

Reference Rosemount Control Drawing 08732-1052

8732 - Certificate No.: KEMA03ATEX2052X II 2G

EEx d IIB T6 (Ta = -20°C to +65°C)

Vmax = 250 V AC or 50 V DC

0575

SPECIAL CONDITIONS FOR SAFE USE (X (03ATEX2052X): If the Model 8732 Flow Transmitter is used integrally with the Model 8705 or 8711 Flowtubes, it shall be assured that the mechanical contact areas of the Flowtube and Flow Transmitter comply with the requirements for flat joints according to standard EN 50018, clause 5.2.

The relation between ambient temperature, process temperature, and temperature class is to be taken from the table under (15 - description) above. (See Table B-3)

The electrical data is to be taken from the summary under (15 - electrical data) above. (See Table B-4)

If the Model 8732 Flow Transmitter is used integrally with the Junction Box, it shall be assured that the mechanical contact areas of the Junction Box and Flow Transmitter comply with the requirements for flanged joints according to standard EN 50018, clause 5.2.

INSTALLATION INSTRUCTIONS:The cable and conduit entry devices and blanking elements shall be of a certified flameproof type, suitable for the conditions of use and correctly installed. With the use of conduit, a certified stopping box shall be provided immediately to the entrance of the enclosure.

ED Certificate No: KEMA03ATEX2159X II 2G

EEx de IIB T6 (Ta = -20°C to +65°C)

Vmax = 250 V AC or 50 V DC

0575

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K1 ATEX Flameproof

Hydrogen Gas Group with

Intrinsically safe output (8742 only)

Certificate No.: KEMA03ATEX2159x II 2G

ATEX EEx de [ia] IIB + H2 T6 (-20°C ≤ Ta ≤ +65°C)

Vmax = 250 V AC or 50 V DC

0575

KD ATEX Flameproof with

Intrinsically Safe Output

Certificate No: KEMA03ATEX2159X II 2G

EEx de [ia] IIB T6 (Ta = -20°C to +65°C)

Vmax = 250 V AC or 50 V DC

0575

See Table B-4 for Electrical Parameters

SPECIAL CONDITIONS FOR SAFE USE (X) (03ATEX2159X): The relation between ambient temperature, process temperature and temperature class is to be taken from the table under (15 - description) above. (See Table B-3).

If the Model 8742C Flow Transmitter is used integrally with the Junction Box, it shall be assured that the mechanical contact areas of the Junction Box and Flow Transmitter comply with the requirements for flanged joints according to standard EN 50018, clause 5.2.

INSTALLATION INSTRUCTIONS: The cable and conduit entry devices and the closing elements shall be of a certified increased safety type, suitable for the conditions of use and correctly installed.

At ambient temperatures above 50°C, the flow meter shall be used with heat resistant cables with a temperature rating of at least 90°C.

A Junction Box in type of explosion protection increased safety “e” may be attached to the base of the Model 8742C Flow Transmitter, permitting remote mounting of the Models 8705 and 8711 Flowtubes.

Ambient temperature range of the Junction Box: -20°C to +65°C.

The Junction Box is classified as II 2 G EEx e IIB T6 and certified under KEMA 03ATEX2052X.

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Flowtube Approval Information

North American Certifications

Factory Mutual (FM)

N0 Division 2 Approval for

Non-Flammable Fluids (All Flowtubes)

Class I, Division 2, Groups A, B, C, D

Temp Code – T5 (8705/8711 at 60°C)

Temp Code – T3C (8707 at 60°C)

Dust-Ignition proof Class II/III, Division 1, Groups E, F, G

Temp Code – T6 (8705/8711 at 60°C)

Temp Code – T3C (8707 at 60°C)

Enclosure Type 4X

N5 Division 2 Approval for Flammable Fluids

(All Flowtubes)

Class I, Division 2, Groups A, B, C, D

Temp Code – T5 (8705/8711 at 60°C)

Temp Code – T3C (8707 at 60°C)

Dust-Ignition proof Class II/III, Division 1, Groups E, F, G

Temp Code – T6 (8705/8711 at 60°C)

Temp Code – T3C (8707 at 60°C)

Enclosure Type 4X

Remote Junction Box

Certificate No.: KEMA03ATEX2052x II 2G

ATEX EEx e (1) T6 (Ta = -20°C to +65°C)

When installed per drawing 08732-1050

After de-energizing, wait 10 minutes before

opening cover

0575

(1) IIB + H2 for E1, K1

IIB for ED, KD

Table B-2. Flowtube Option Codes(1)

Approval Codes

Rosemount 8705 Flowtube Rosemount 8707 Flowtube Rosemount 8711 Flowtube

For Non-flammable

Fluids

For Flammable

Fluids

For Non-flammable

Fluids

For Flammable

Fluids

For Non-flammable

Fluids

For Flammable

Fluids

N0 • • •

N1 • • • •

N5 • • • • • •

E1 • • • •

E5 • •

CD(2) • •

KD(2) • •

(1) CE Marking is standard on Rosemount 8705 and 8711. No hazardous location certifications are available on the Rosemount 570TM.

(2) Refer to Table B-3 on page B-11 for relation between ambient temperature, process temperature, and temperature class.

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E5 Explosion-Proof (8711 Only)

Explosion-Proof for Class I, Division 1, Groups C, D

Temp Code – T6 at 60°C

Dust-Ignition proof Class II/III, Division 1, Groups E, F, G

Temp Code – T6 at 60°C

Class I, Division 2, Groups A, B, C, D

Temp Code – T5 at 60°C

Enclosure Type 4X

Canadian Standards Association (CSA)

N0 Suitable for Class I, Division 2, Groups A, B, C, D

Temp Code – T5 (8705/8711 at 60°C)

Temp Code – T3C (8707 at 60°C)

Dust-Ignition proof Class II/III, Division 1, Groups E, F, G

Enclosure Type 4X

European Certifications

N1 ATEX Non-Sparking/Non-incendive (8705/8711 Only)

Certificate No: KEMA02ATEX1302X II 3G

EEx nA [L] IIC T3... T6

Ambient Temperature Limits -20 to 65°C

Special conditions per drawing 08732-1050

0575

SPECIAL CONDITIONS FOR SAFE USE (X):If the Model 8732 Flow Transmitter is used integrally with the Model 8705 or Model 8711 Flowtubes, it shall be assured that the mechanical contact areas of the Flowtube and Flow Transmitter comply with the requirements for flat joints according to standard EN 50018, clause 5.2. The relation between ambient temperature, process temperature and temperature class is to be taken from the table under (15-description) above. - (See certificate) The electrical data is to be taken from the summary under (15-electrical data above).

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E1, ATEX Increased Safety (Zone 1)

CD with IS Electrodes (8711 only)

Certificate No: KEMA03ATEX2052X II 1/2G

EEx e ia IIC T3... T6 (Ta = -20 to +60°) (See Table B-3)

0575

When installed per drawing 08732-1050

Vmax = 40 V DC (pulsed)

SPECIAL CONDITIONS FOR SAFE USE (X):If the Model 8732 Flow Transmitter is used integrally with the Model 8705 or Model 8711 Flowtubes, it shall be assured that the mechanical contact areas of the Flowtube and Flow Transmitter comply with the requirements for flat joints according to standard EN 50018, clause 5.2. The relation between ambient temperature, process temperature and temperature class is to be taken from the table under (15-description) above. - (See certificate) The electrical data is to be taken from the summary under (15-electrical data above).

INSTALLATION INSTRUCTIONS:At ambient temperature above 50°C, the flowmeter shall be used with heat resistant cables with a temperature rating of at least 90°C.

A fuse with a rating of maximum 0,7 A according to IEC 60127-1 shall be included in the coil excitation circuit if the flowtubes are used with other flow transmitters (e.g. Model 8712).

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E1, ATEX Increased Safety (Zone 1)

KD with IS Electrodes (8705 only)

Certificate No. KEMA 03ATEX2052X II 1/2G

EEx e ia IIC T3... T6 (Ta = -20 to 60°C) (See Table B-3)

0575

When installed per drawing 08732-1050

Vmax = 40 V DC (pulsed)

SPECIAL CONDITIONS FOR SAFE USE (X):If the Model 8732 Flow Transmitter is used integrally with the Model 8705 or Model 8711 Flowtubes, it shall be assured that the mechanical contact areas of the Flowtube and Flow Transmitter comply with the requirements for flat joints according to standard EN 50018, clause 5.2. The relation between ambient temperature, process temperature and temperature class is to be taken from the table under (15-description) above. - (See certificate) The electrical data is to be taken from the summary under (15-electrical data above).

INSTALLATION INSTRUCTIONS:At ambient temperature above 50°C, the flowmeter shall be used with heat resistant cables with a temperature rating of at least 90°C.

A fuse with a rating of maximum 0,7 A according to IEC 60127-1 shall be included in the coil excitation circuit if the flowtubes are used with other flow transmitters (e.g. Model 8712).

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Table B-3. Relation between ambient temperature, process temperature, and temperature class(1)

Meter Size (Inches) Maximum Ambient Temperature Maximum Process Temperature Temperature Class

1/2 149°F (65°C) 297°F (147°C) T3

1 149°F (65°C) 318°F (159°C) T3

1 95°F (35°C) 232°F (111°C) T4

11/2 149°F (65°C) 297°F (147°C) T3

11/2 140°F (60°C) 171°F (77°C) T4

2 149°F (65°C) 289°F (143°C) T3

2 149°F (65°C) 163°F (73°C) T4

2 104°F (40°C) 144°F (62°C) T5

3 - 36 149°F (65°C) 351°F (177°C) T3

3 - 36 149°F (65°C) 210°F (99°C) T4

3 - 36 131°F (55°C) 144°F (62°C) T5

3 - 36 104°F (40°C) 144°F (62°C) T6

(1) This table is applicable for CD and KD option codes only.

Table B-4. Electrical Data

Model 8732 Flow Transmitter

Power supply: 250 Vac, 1 A or 50 Vdc, 2,5 A, 20 W maximum

Pulsed output circuit: 30 V dc (pulsed), 0,25 A, 7,5 W maximum

4-20 mA output circuit: 30 V dc, 30 mA, 900 mW maximum

Model 8705 and 8711 Flowtubes

Coil excitation circuit: 40 V dc (pulsed), 0,5 A, 20 W maximum

Electrode circuit: in type of explosion protection intrinsic safety EEx ia IIC, 5 V, 1 mW maximum, Um = 250 V

Model 8742C Flow Transmitter (EEx de

version):

Power supply: 250 Vac, 1 A, 40 VA or 50 Vdc, 2,5 A, 15 W maximum

Foundation Fieldbus output: 30 Vdc, 30 mA, 1 W maximum

Model 8742C Flow Transmitter (EEx de [ia]

version):

Power supply: 250 Vac, 1 A, 40 VA or 50 Vdc, 2,5 A, 15 W maximum

Foundation Fieldbus output:

(terminals + and -)

in type of explosion protection intrinsic safety EEx ia IIB, only for connection to a certified intrinsically safe

circuit according to the FISCO model, with the following maximum values:

Ui = 30 V

Ii = 380 mA

Pi = 5,32 W

Ci = 4,4 nF

Li = 0 mH

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Table B-5. Relation between the maximum ambient temperature, the maximum process temperature, and the temperature class(1)

Maximum Ambient

Temperature

Maximum process temperature °F (°C) per temperature class

T3 T4 T5 T6

0.5 inch flowtube size

149°F (65°C) 297°F (147°C) 138°F (59°C) 54°F (12°C) 18°F (-8°C)

140°F (60°C) 309°F (154°C) 151°F (66°C) 66°F (19°C) 28°F (-2°C)

131°F (55°C) 322°F (161°C) 163°F (73°C) 79°F (26°C) 41°F (5°C)

122°F (50°C) 334°F (168°C) 176°F (80°C) 90°F (32°C) 54°F (12°C)

113°F (45°C) 347°F (175°C) 189°F (87°C) 102°F (39°C) 66°F (19°C)

104°F (40°C) 351°F (177°C) 199°F (93°C) 115°F (46°C) 79°F (26°C)

95°F (35°C) 351°F (177°C) 212°F (100°C) 127°F (53°C) 90°F (32°C)

86°F (30°C) 351°F (177°C) 225°F (107°C) 138°F (59°C) 102°F (39°C)

77°F (25°C) 351°F (177°C) 237°F (114°C) 151°F (66°C) 115°F (46°C)

68°F (20°C) 351°F (177°C) 248°F (120°C) 163°F (73°C) 127°F (53°C)

1.0 inch flowtube size

149°F (65°C) 318°F (159°C) 158°F (70°C) 72°F (22°C) 34°F (1°C)

140°F (60°C) 331°F (166°C) 171°F (77°C) 84°F (29°C) 46°F (8°C)

131°F (55°C) 343°F (173°C) 183°F (84°C) 97°F (36°C) 59°F (15°C)

122°F (50°C) 351°F (177°C) 196°F (91°C) 109°F (43°C) 72°F (22°C)

113°F (45°C) 351°F (177°C) 207°F (97°C) 122°F (50°C) 84°F (29°C)

104°F (40°C) 351°F (177°C) 219°F (104°C) 135°F (57°C) 97°F (36°C)

95°F (35°C) 351°F (177°C) 232°F (111°C) 145°F (63°C) 109°F (43°C)

86°F (30°C) 351°F (177°C) 244°F (118°C) 158°F (70°C) 122°F (50°C)

77°F (25°C) 351°F (177°C) 257°F (125°C) 171°F (77°C) 135°F (57°C)

68°F (20°C) 351°F (177°C) 270°F (132°C) 183°F (84°C) 145°F (63°C)

1.5 inch flowtube size

149°F (65°C) 297°F (147°C) 160°F (71°C) 88°F (31°C) 55°F (13°C)

140°F (60°C) 307°F (153°C) 171°F (77°C) 97°F (36°C) 66°F (19°C)

131°F (55°C) 318°F (159°C) 181°F (83°C) 108°F (42°C) 77°F (25°C)

122°F (50°C) 329°F (165°C) 192°F (89°C) 118°F (48°C) 88°F (31°C)

113°F (45°C) 340°F (171°C) 203°F (95°C) 129°F (54°C) 97°F (36°C)

104°F (40°C) 351°F (177°C) 214°F (101°C) 140°F (60°C) 108°F (42°C)

95°F (35°C) 351°F (177°C) 223°F (106°C) 151°F (66°C) 118°F (48°C)

86°F (30°C) 351°F (177°C) 234°F (112°C) 160°F (71°C) 129°F (54°C)

77°F (25°C) 351°F (177°C) 244°F (118°C) 171°F (77°C) 140°F (60°C)

68°F (20°C) 351°F (177°C) 255°F (124°C) 181°F (83°C) 151°F (66°C)

Continued on Next Page

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2.0 inch flowtube size

149°F (65°C) 289°F (143°C) 163°F (73°C) 95°F (35°C) 66°F (19°C)

140°F (60°C) 300°F (149°C) 172°F 78(°C) 104°F (40°C) 75°F (24°C)

131°F (55°C) 309°F (154°C) 183°F (84°C) 115°F (46°C) 84°F (29°C)

122°F (50°C) 318°F (159°C) 192°F (89°C) 124°F (51°C) 95°F (35°C)

113°F (45°C) 329°F (165°C) 201°F (94°C) 135°F (57°C) 104°F (40°C)

104°F (40°C) 338°F (170°C) 212°F (100°C) 144°F (62°C) 115°F (46°C)

95°F (35°C) 349°F (176°C) 221°F (105°C) 153°F (67°C) 124°F (51°C)

86°F (30°C) 351°F (177°C) 232°F (111°C) 163°F (73°C) 135°F (57°C)

77°F (25°C) 351°F (177°C) 241°F (116°C) 172°F (78°C) 144°F (62°C)

68°F (20°C) 351°F (177°C) 252°F (122°C) 183°F (84°C) 153°F (67°C)

3 to 60 inch flowtube size

149°F (65°C) 351°F (177°C) 210°F (99°C) 117°F (47°C) 75°F (24°C)

140°F (60°C) 351°F (177°C) 223°F (106°C) 129°F (54°C) 90°F (32°C)

131°F (55°C) 351°F (177°C) 237°F (114°C) 144°F (62°C) 102°F (39°C)

122°F (50°C) 351°F (177°C) 250°F (121°C) 156°F (69°C) 117°F (47°C)

113°F (45°C) 351°F (177°C) 264°F (129°C) 171°F (77°C) 129°F (54°C)

104°F (40°C) 351°F (177°C) 266°F (130°C) 183°F (84°C) 144°F (62°C)

95°F (35°C) 351°F (177°C) 266°F (130°C) 198°F (92°C) 156°F (69°C)

86°F (30°C) 351°F (177°C) 266°F (130°C) 203°F (95°C) 171°F (77°C)

77°F (25°C) 351°F (177°C) 266°F (130°C) 203°F (95°C) 176°F (80°C)

68°F (20°C) 351°F (177°C) 266°F (130°C) 203°F (95°C) 176°F (80°C)

(1) This table is applicable for N1 option codes only.

Table B-5. Relation between the maximum ambient temperature, the maximum process temperature, and the temperature class(1)

Maximum Ambient

Temperature

Maximum process temperature °F (°C) per temperature class

T3 T4 T5 T6

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Appendix C Resource Block

Parameters and Descriptions . . . . . . . . . . . . . . . . . . . . . . page C-1

Resource Block Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . page C-5

Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page C-5

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page C-6

This section contains information on the resource block for the Rosemount 8742C Magnetic Flowmeter Transmitter. Descriptions of all resource block parameters, errors, and diagnostics are included. Also, the modes, alarm detection, status handling, virtual communication relationships (VCRs), and troubleshooting are discussed.

Definition The resource block defines the physical resources of the device, such as measurement and memory. The resource block also handles functionality, such as shed times, that is common across multiple blocks. The block has no linkable inputs or outputs, and it performs memory-level diagnostics.

PARAMETERS AND DESCRIPTIONS

Table C-1 lists all of the configurable parameters of the resource block, including the descriptions and index numbers for each parameter. Newer software revisions have added functionality and some index numbers have changed. To determine the software revision of a transmitter, check the parameter SOFTWARE_REVISION_MAJOR or open the cover on the electronics side of the transmitter. The most recent transmitters have a label on the electronic board stack.

Table C-1. Resource Block Parameters

Index Number

Parameter Rev 5 Description

ST_REV 01 The revision level of the static data associated with the function block. The revision

value will be incremented each time a static parameter value in the block is

changed.

TAG_DESC 02 The user description of the intended application of the block.

STRATEGY 03 The strategy field can be used to identify grouping of blocks. These data are not

checked or processed by the block.

ALERT_KEY 04 ALERT_KEY shows the identification number of the plant unit. This information

may be used in the host for sorting alarms, etc.

MODE_BLK 05 The actual, target, permitted, and normal modes of the block:

Target: The mode to “go to”

Actual: The mode the “block is currently in”

Permitted: Allowed modes that the target mode may take on

Normal: Most common mode for the actual mode

BLOCK_ERR 06 This parameter reflects the error status of the hardware or software components

associated with a block. It is a bit string, so multiple errors may be shown.

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RS_STATE 07 RS_STATE denotes the state of the function block application state machine.

TEST_RW 08 A parameter for a host to use to test reading and writing. Not used by the device at

all.

DD_RESOURCE 09 This string identifies the tag of the resource that contains the device description for

this resource.

MANUFAC_ID 10 Manufacturer identification number—used by an interface device to locate the DD

file for the resource (001151 for Rosemount).

DEV_TYPE 11 This parameter represents the manufacturer’s model number associated with the

resource—used by interface devices to locate the DD file for the resource

(Rosemount 8742C).

DEV_REV 12 This parameter represents the manufacturer revision number associated with the

resource—used by an interface device to locate the DD file for the resource.

DD_REV 13 DD_REV is a revision of the DD associated with the resource—used by an

interface device to locate the DD file for the resource.

GRANT_DENY 14 Options for controlling access of host computers and local control panels to

operating, tuning, and alarm parameters of the block (not used by the device).

HARD_TYPES 15 HARD_TYPES shows the types of hardware available as channel numbers. For

the Rosemount 8742C, this parameter is limited to scalar (i.e., analog) inputs.

RESTART 16 Allows a manual restart to be initiated. Several degrees of restart are possible:

1 Run: Nominal state when not restarting

2 Restart resource: Not used

3 Restart with defaults: Set parameters to default values (see

START_WITH_DEFAULTS below for which parameters are set).

4 Restart processor: Does a warm start of the central processing unit (CPU).

FEATURES 17 This parameter is used to show supported resource block options.

FEATURES_SEL 18 Used to show selected resource block options. The Rosemount 8742C Magnetic

Flowmeter Transmitter supports the following options:

Unicode: Tells the host to use unicode for string values

Reports: Enables alarms; must be set for alarming to work

Software Lock: Software write locking enabled but not active; WRITE_LOCK must

be set to activate

Hardware Lock: Hardware write locking enabled but not active; WRITE_LOCK

follows the status of the security switch

CYCLE_TYPE 19 This parameter identifies the block execution methods available for this resource.

CYCLE_SEL 20 This parameter is used to select the block execution method for this resource. The

Rosemount 8742C supports the following executions:

Scheduled: Blocks are only executed based on the schedule in FB_START_LIST.

Block Execution: A block may be executed by linking to another block’s completion.

MIN_CYCLE_T 21 Time duration of the shortest cycle interval of which the resource is capable.

MEMORY_SIZE 22 Available configuration memory in the empty resource. To be checked before

attempting a download.

NV_CYCLE_T 23 NV_CYCLE_T is the interval between which copies of nonvolatile (NV) parameters

are written to NV memory. Zero denotes that NV parameters are never written to

NV memory.

FREE_SPACE 24 This parameter represents the percent of memory available for further

configuration (zero in a preconfigured device).

FREE_TIME 25 This parameter represents the percent of the block processing time that is free to

process additional blocks.

SHED_RCAS 26 This parameter represents the time duration at which to give up on computer writes

to function block RCas locations.

SHED_ROUT 27 This parameter represents the time duration at which to give up on computer writes

to function block ROut locations.

FAIL_SAFE 28 Condition set by loss of communication to an output block, fault promoted to an

output block or physical contact. When FAULT_ STATE condition is set, then output

function blocks will perform their FAULT_ STATE actions.

SET_FSAFE 29 Allows the FAULT_ STATE condition to be manually initiated by selecting Set.

Index Number

Parameter Rev 5 Description

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CLR_FSAFE 30 Writing a Clear to this parameter will clear the device FAULT_ STATE if the field

condition has cleared.

MAX_NOTIFY 31 Maximum number of unconfirmed alert notify messages possible.

LIM_NOTIFY 32 Maximum number of unconfirmed alert notify messages allowed.

CONFIRM_TIME 33 This parameter represents the minimum time between retries of alert reports.

WRITE_LOCK 34 If set, no writes from anywhere are allowed, except to clear WRITE_LOCK. Block

inputs will continue to be updated.

UPDATE_EVT 35 This alert is generated by any change to the static data.

BLOCK_ALM 36 The block alarm is used for all configuration, hardware, connection failure, or

system problems in the block. The cause of the alert is entered in the subcode

field. The first alert to become active will set the active status in the status

parameter. As soon as the unreported status is cleared by the alert reporting task,

another block alert may be reported without clearing the active status, if the

subcode has changed.

ALARM_SUM 37 This parameter shows the current alert status, unacknowledged states, unreported

states, and disabled states of the alarms associated with the function block. In the

Rosemount 8742C Magnetic Flowmeter Transmitter, the two resource block alarms

are write alarm and block alarm.

ACK_OPTION 38 ACK_OPTION is a selection of whether alarms associated with the function block

will be automatically acknowledged.

WRITE_PRI 39 WRITE_PRI represents the priority of the alarm generated by clearing the write

lock.

WRITE_ALM 40 This alert is generated if the write lock parameter is cleared.

ITK_VER 41 FOUNDATION fieldbus Interoperability Test Kit Version

DISTRIBUTOR 42 References the company that is responsible for the distribution of this device.

DEV_STRING 43 Used to load new licensing into the device. The value can be written but will always

read back with a value of 0.

XD_OPTIONS 44 Indicates which transducer block licensing block options are enabled.

FB_OPTIONS 45 Indicates which function block licensing options are enabled.

DIAG_OPTIONS 46 Indicates which diagnostics licensing options are enabled.

MISC_OPTIONS 47 Indicates which miscellaneous licensing options are enabled.

RB_SFTWR_REV_MAJOR 48 This parameter shows the major revision of the software that the resource block

was created with.

RB_SFTWR_REV_MINOR 49 This parameter shows the minor revision of the software that the resource block

was created with.

RB_SFTWR_REV_BUILD 50 This parameter shows the build of software that the resource block was created

with.

RB_SFTWR_REV_ALL 51 Software revision string containing the following fields: major revision, minor

revision, build, time of build, day of week of build, month of build, day of month of

build, year of build, initials of builder.

HARDWARE_REV 52 This parameter represents the hardware revision of the hardware that has the

resource block in it.

OUTPUT_BOARD_SN 53 This parameter represents the output board serial number.

FINAL_ASSEMBLY_NUMBER 54 FINAL_ASSEMBLY_NUMBER is used for identification purposes and is associated

with the overall field device.

DETAILED_STATUS 55 DETAILED_STATUS is an additional status bit string.

SUMMARY_STATUS 56 This parameter represents an enumerated value of repair analysis.

MESSAGE_DATE 57 MESSAGE_DATE is the date associated with the MESSAGE_TEXT parameter.

MESSAGE_TEXT 58 MESSAGE_TEXT is used to indicate changes made by the user to the device's

installation, configuration, or calibration.

SELF_TEST 59 SELF_TEST instructs the resource block to perform a self-test.

DEFINE_WRITE_LOCK 60 This parameter is an enumerated value describing the implementation of the

WRITE_LOCK.

SAVE_CONFIG_NOW 61 This parameter controls saving of configuration in EEPROM.

Index Number

Parameter Rev 5 Description

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SAVE_CONFIG_BLOCKS 62 Number of EEPROM blocks that have been modified since the last burn. This value

will count down to zero when the configuration is saved.

START_WITH_DEFAULTS 63 START_WITH_DEFAULTS controls what defaults are used at power-up.

SIMULATE_IO 64 SIMULATE_JUMPER shows the status of the simulate jumper/switch.

SECURITY_IO 65 SECURITY_JUMPER denotes the status of security jumper/switch.

SIMULATE_STATE 66 SIMULATE_STATE represents the state of the simulate function.

DOWNLOAD_MODE 67 DOWNLOAD_MODE gives access to the boot block code for over-the-wire

downloads.

RECOMMENDED_ACTION 68 Enumerated list of recommended actions displayed with an alert.

FAIL_PRI 69 Designates the alarming priority of the fail alarm.

FAIL_ENABLE 70 Enables or disables the failure conditions within a device.

FAIL_MASK 71 Mask of Failure Alarm. Corresponds bit of bit to the Fail Active. A bit on means that

the failure is masked out from alarming.

FAIL_ACTIVE 72 Active fail alarms.

FAIL_ALARM 73 Alarm indicating a failure within a device which makes the device non-operational.

MAINTENANCE_PRI 74 Designates the alarming priority of the maintenance alarm.

MAINTENANCE_ENABLE 75 Enables or disables the maintenance conditions within a device.

MAINTENANCE_MASK 76 Mask of Maintenance Alarm. Corresponds bit for bit to the Maintenance Active. A

bit on means that the failure is masked out from alarming.

MAINTENANCE_ACTIVE 77 Active maintenance alarms.

MAINTENANCE_ALARM 78 Alarm indicating the device needs maintenance soon. If the condition is ignored,

the device will eventually fail.

ADVISORY_PRI 79 Designates the alarming priority of the advisory alarm.

ADVISORY_ENABLE 80 Enables or disables the advisory conditions within a device.

ADVISORY_MASK 81 Mask of advisory Alarm. Corresponds bit for bit to the Advisory Active. A bit on

means that the failure is masked out from alarming.

ADVISORY_ACTIVE 82 Active advisory alarms.

ADVISORY_ALARM 83 Alarm indicating advisory alarms. These conditions do not have a direct impact on

the process or device integrity.

HEALTH_INDEX 84 Parameter representing the overall health of the device, 100 being perfect and 1

being non-functioning. The value is based on the active PWA alarms.

PWA_SIMULATE 85 Parameter allows simulation of PWA alarms.

FLOW_TUBE_TAG 86 Flow tube identification tag

FLOW_TUBE_SER_NUM 87 Flow tube serial number

LINER_MAT 88 Liner material

ELECTRODE_MAT 89 Electrode material

ELECTRODE_TYPE 90 Electrode type

FLANGE_TYPE 91 Flange type

FLANGE_MAT 92 Flange material

DESCRIPTOR 93 Descriptor

FUNCTION_BLOCKS_ENABLED 94 Function blocks enabled

Index Number

Parameter Rev 5 Description

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RESOURCE BLOCK ERRORS

Table C-2 lists conditions reported in the BLOCK_ERR parameter. Conditions in italics are inactive for the resource block and are given here only for your reference.

Table C-2. Resource BLOCK_ERR Conditions

MODES The resource block supports two modes of operation as defined by the MODE_BLK parameter:

• Automatic (Auto)—The block is processing its normal background memory checks.

• Out of Service (O/S)—The block is not processing its tasks. When the resource block is in O/S, all blocks within the resource (device) are forced into O/S. The BLOCK_ERR parameter shows OUT OF SERVICE. In this mode, you can make changes to all configurable parameters. The target mode of a block may be restricted to one or more of the supported modes.

Condition

Number Condition Name and Description

1 Block Configuration Error: A feature in FEATURES_SEL is set that is

not supported by FEATURES or an execution cycle in CYCLE_SEL is

set that is not supported by CYCLE_TYPE.

2 Link Configuration Error: A link used in one of the function blocks is

improperly configured.

3 Simulate Active: The simulation jumper is in place. Simulate active is

not an indication that the I/O blocks are using simulated data.

4 Local Override

5 Device Fault State Set

6 Device Needs Maintenance Soon

7 Input failure/process variable has bad status

8 Output Failure: The output is bad based primarily upon a bad input.

9 Memory Failure: A memory failure has occurred in FLASH, RAM, or

EEPROM memory.

10 Lost Static Data: Static data that are stored in nonvolatile memory have

been lost.

11 Lost NV Data: Nonvolatile data that are stored in nonvolatile memory

have been lost.

12 Readback Check Failed

13 Device Needs Maintenance Now

14 Power Up: The device was just powered-up.

15 Out of Service: The actual mode is out of service.

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Alarm Detection A block alarm will be generated whenever the BLOCK_ERR has an error bit set. The types of block error for the resource block are defined in Table C-2.

A write alarm is generated whenever the WRITE_LOCK parameter is cleared. The priority of the write alarm is set in the following parameter:

• WRITE_PRI

Alarms are grouped into five levels of priority, as shown in Table C-3.

Table C-3. Alarm Priorities

Status Handling There are no status parameters associated with the resource block.

VCR The number of configurable virtual communication relationships or VCRs is 18. The parameter is not contained or viewable within the resource block, but it does apply to all blocks.

TROUBLESHOOTING Refer to Table C-4 to troubleshoot resource block problems.

Table C-4. Troubleshooting

Priority

Number Priority Description

0 The priority of an alarm condition changes to 0 after the condition that

caused the alarm is corrected.

1 An alarm condition with a priority of 1 is recognized by the system, but is

not reported to the operator.

2 An alarm condition with a priority of 2 is reported to the operator, but

does not require operator attention (such as diagnostics and system

alerts).

3–7 Alarm conditions of priority 3–7 are advisory alarms of increasing

priority.

8–15 Alarm conditions of priority 8–15 are critical alarms of increasing priority.

Symptom Possible Causes Corrective Action

Mode will not

leave OOS.

Target mode not set Set target mode to something other

than OOS.

Memory failure BLOCK_ERR will show the lost NV

Data or Lost Static Data bit set.

Restart the device by setting

RESTART to Processor. If the block

error does not clear, call the factory.

Block alarms will

not work.

Features FEATURES_SEL does not have

Alerts enabled. Enable the Alerts bit.

Notification LIM_NOTIFY is not high enough. Set

equal to MAX_NOTIFY.

Status options STATUS_OPTS has Propagate Fault

Forward bit set. This should be

cleared to cause an alarm to occur.

C-6

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Appendix D Transducer Block

Parameters and Descriptions . . . . . . . . . . . . . . . . . . . . . . page D-2

Flow-Specific Block Configuration Values . . . . . . . . . . . . page D-3

Transducer Block Errors . . . . . . . . . . . . . . . . . . . . . . . . . . page D-4

Transducer Block Diagnostics . . . . . . . . . . . . . . . . . . . . . page D-5

Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page D-5

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page D-6

This appendix contains information on the transducer block for the Rosemount 8742C Magnetic Flowmeter Transmitter (see Figure D-1). Descriptions of all transducer block parameters, errors, and diagnostics are listed. Also, the modes, alarm detection, status handling, application information, and troubleshooting are discussed.

Figure D-1. Transducer Block Diagram

Definition The transducer block contains the actual flow measurement data. The data include information about sensor type, engineering units, digital filter settings, damping, and diagnostics. Only a single channel is defined in the Rosemount 8742C. Channel 1 provides flow measurements to the analog input (AI) block.

Diagnostics

A/D Signal Conversion Flow

Da

mp

ing

Un

its

/ R

an

gin

g

Diagnostics

A/D Signal Conversion Flow

Da

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Un

its

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an

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TB

FBUS_45A

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PARAMETERS AND DESCRIPTIONS

Table D-1 lists all of the configurable parameters of the transducer block, indicating the descriptions and index numbers for each parameters.

Table D-1. Transducer Block Parameters

Parameter Index Number Definition

ALERT_KEY 4 ID number of the transmitter–may be used on the host for sorting alarms

BLOCK_ALM 8 Block alarm

BLOCK_ERR 6 Reflects the error status associated with hardware or software components

associated with a block

CAL_MIN_SPAN 18 Minimum calibrated span value allowed–this minimum span information is necessary

to ensure that the two calibrated points (high and low) are not too close together

CAL_POINT_HI 16 Highest calibrated value

CAL_POINT_LO 17 Lowest calibrated value

CAL_UNIT 19 Engineering units code index for calibration values

COIL_DRIVE_CURRENT 36 Current at which the coils are being driven (500 mA)

COIL_DRIVE_FREQUENCY 35 Frequency at which the coils are being driven (5 or 37.5 Hz)

COLLECTION_DIRECTORY 12 Directory that specifies the number, starting indices, and DD item IDs of the data

collections in each transducer within a transducer block

DAMPING 30 Damping filter value (in seconds)

DENSITY_UNIT 31 Unit code associated with DENSITY_VALUE. Valid values are lb/cubic feet, or

kg/cubic meter

DENSITY_VALUE 75 User entered density value to be used by the transducer block when calculating flow

rate in mass flow units

DSP_SOFTWARE_REV_NUM 49 DSP software Rev Number–major, minor, build

FLOW_TUBE_LINE_SIZE 34 Inside diameter of flowtube (in millimeters)–see Table D-2

for supported enumerated line sizes.

LOW_FLOW_CUTOFF 37 When flow rate is less than this entered value, flow rate output will be set to 0 ft/s

MODE_BLK 5 Mode of the record of the block–contains the actual, target, permitted,

and normal modes

PRIMARY_VALUE 14 Measured value and status

PRIMARY_VALUE_RANGE 15 High and low range limit values, engineering units code, and number of digits to the

right of the decimal point to be used to display the primary value–see Table D-3.

PRIMARY_VALUE_TYPE 13 Type of measurement represented by the primary value

SENSOR_CAL_DATE 25 Date of the last sensor calibration–intended to reflect the calibration of the sensor

SENSOR_CAL_LOC 24 Location of the last sensor calibration–describes the physical location at which the

calibration was performed

SENSOR_CAL_METHOD 23 Method of the last sensor calibration–ISO defines several standard methods of

calibration (This parameter is intended to record that method or if some other method

was used.)

SENSOR_CAL_WHO 26 Name of the person responsible for the last sensor calibration

SENSOR_RANGE 21 High and low range limit values, engineering units code, and number of digits to the

right of the decimal point for the sensor–see Table D-3.

SENSOR_SN 22 The sensor serial number.

SENSOR_TYPE 20 Sensor type.

STRATEGY 3 Can be used to help group the blocks (Not checked or processed by the block)

ST_REV 1 Static Revision–incriminated when parameter changed.

TAG_DESC 2 Static tag–ASCII character string

TRANSDUCER_DIRECTORY 9 Directory that specifies the number and starting indices of the transducers in the

transducer block.

TRANSDUCER_TEMP 44 Calculated transmitter temperature with status.

TRANSDUCER_TYPE 10 Identifies the transducer.

TUBE_CAL_NO 33 Flowtube gain and zero offset number used in flow calculation

(Number entered is locate on physical tag of the flowtube.)

UPDATE_EVT 7 Update event

XD_ERROR 11 Transducer error

D-2

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FLOW-SPECIFIC BLOCK CONFIGURATION VALUES

Once the transmitter is installed and communication is established, configuration must be completed. Three parameters must be entered for proper configuration:

• Flowtube calibration number

• Engineering units (configured via AI block)

• Flowtube size

The flowtube calibration number can be found on the flowtube nameplate. A list of all possible engineering units and the flowtube size are listed in Table D-2 and Table D-3. Mass units (lb, kg, ton, and ston) are required configuration of the DENSITY_VALUE.

Table D-2. Supported Line Sizes

Table D-3. Supported Engineering Units

User-Defined Flowtube Line Size

0.1 in. (3 mm) 16 in. (400 mm)

0.15 in. (4 mm) 18 in. (450 mm)

0.25 in. (6 mm) 20 in. (500 mm)

0.3 in (8 mm) 24 in. (600 mm)

0.5 in. (15 mm) 28 in. (700 mm)

0.75 in. (20 mm) 30 in. (750 mm)

1 in. (25 mm) 32 in (800 mm)

1.5 in. (40 mm) 36 in. (900 mm)

2 in. (50 mm) 40 in. (1000 mm)

2.5 in. (65 mm) 42 in. (1050 mm)

3 in. (80 mm)(1)

(1) Default Factory Configuration

48 in. (1200 mm)

4 in. (100 mm) 54 in. (1350 mm)

6 in. (150 mm) 56 in. (1400 mm)

8 in. (200 mm) 60 in. (1500 mm)

10 in. (250 mm) 64 in. (1600 mm)

12 in. (300 mm) 72 in. (1800 mm)

14 in. (350 mm) 80 in. (2000 mm)

User-Defined Engineering Units

Ft./Sec(1)

(1) Default Factory Configuration

Ft/Min Ft/Hr Ft/d

m/Sec m/Min m/Hr m/d

Gal/Sec Gal/Min Gal/Hr Gal/d

m3/Sec m3/Min m3/Hr m3/d

cm3/Sec cm3/Min cm3/Hr cm3/d

Ft3/Sec Ft3/Min Ft3/Hr Ft3/d

Liters/Sec Liters/Min Liters/Hr Liters/d

Igal/Sec Igal/Min Igal/Hr Igal/d

bbl/Sec bbl/Min bbl/Hr bbl/d

cF/Sec cF/Min cF/Hr cF/d

lb/Sec lb/Min lb/Hr lb/d

kg/Sec kg/Min kg/Hr kg/d

ton/Sec ton/Min ton/Hr ton/d

ston/Sec ston/Min ston/Hr ston/d

D-3

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TRANSDUCER BLOCK ERRORS

The following conditions are reported in the BLOCK_ERR and XD_ERROR parameters. Conditions in italics are inactive for the transducer block and are given here only for your reference.

Table D-4. Transducer BLOCK_ERR and XD_ERR Conditions

Condition

Number Condition Name and Description

1 Block Configuration Error

2 Link Configuration Error

3 Simulate Active

4 Local Override

5 Device Fault State Set

6 Device Needs Maintenance Soon

7 Input Failure/Process Variable Has Bad Status

8 Output Failure

9 Memory Failure

10 Lost Static Data

11 Lost NV Data

12 Readback Check Failed

13 Device Needs Maintenance Now

14 Power Up: The device was just powered-up.

15 Out of Service: The actual mode is out of service.

16 Unspecified Error: An unidentified error occurred.

17 General Error: A general error that cannot be specified below occurred.

18 Calibration Error: An error occurred during calibration of the device, or

a calibration error was detected during normal operations.

19 Configuration Error: An error occurred during configuration of the

device, or a configuration error was detected during normal operations.

20 Electronics Failure: An electrical component failed.

21 Mechanical Failure: A mechanical component failed.

22 I/O Failure: An input/output (I/O) failure occurred.

23 Data Integrity Error: Data stored in the device are no longer valid due

to a nonvolatile memory checksum failure, a data verify after write

failure, etc.

24 Software Error: The software has detected an error due to an improper

interrupt service routine, an arithmetic overflow, a watchdog time-out,

etc.

25 Algorithm Error: The algorithm used in the transducer block produced

an error due to overflow, data reasonableness failure, etc.

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TRANSDUCER BLOCK DIAGNOSTICS

In addition to the BLOCK_ERR and XD_ERROR parameters, more detailed information on the measurement status can be obtained via DETAILED_STATUS. Table D-5 lists the potential errors and the possible corrective actions for the given values. Reset the transmitter by cycling power and then, if the error persists, perform the corrective action as described in Table D-5. More detailed and descriptive corrective actions are listed in Section 4: Operation and Maintenance and Section 5: Troubleshooting.

Table D-5. TB_DETAILED_STATUS Descriptions and Corrective Actions

MODES The transducer block supports two modes of operation as defined by the MODE_BLK parameter:

• Automatic (Auto)—The channel outputs reflect the analog input measurement.

• Out of Service (O/S)—The block is not processed. Channel outputs are not updated and the status is set to BAD: OUT OF SERVICE for each channel. The BLOCK_ERR parameter shows OUT OF SERVICE. In this mode, you can make changes to all configurable parameters. The target mode of a block may be restricted to one or more of the supported modes.

Alarm Detection Alarms are not generated by the transducer block. By correctly handling the status of the channel values, the down stream block (AI) will generate the necessary alarms for the measurement. The error that generated this alarm can be determined by looking at BLOCK_ERR and XD_ERROR.

Value Name and Description Corrective Action

0x00000001 DSP hardware not compatible

with software

Send to service center(1)

(1) See Section 5: Troubleshooting for detailed instructions on how to return products to an authorized service center or factory.

0x00000002 Electronics failure Replace the electronics board

stack

0x00000004 Coil drive open circuit Perform flowtube electrical

resistance checks

0x00000008 Empty Pipe Detected Verify flowtube is full

0x00000010 Calibration failure Cycle transmitter power to clear

message

0x00000020 Auto Zero failure Repeat Auto Zero process

0x00000040 Sensor high limit exceeded Lower the process flowrate

0x00000080 Primary value range exceeded Lower the process flowrate

0x00000100 Electrode signal fault Remove moisture from terminal

block

0x00000200 Reverse flow detected Verify flowtube is not installed

backwards

0x00000800 Electronics trim in progress Status message –

no corrective action

0x00001000 Auto zero trim in progress Status message –

no corrective action

0x00002000 High Process Noise Increase the coil drive frequency to

37.5 Hz

0x00008000 Grounding/Wiring Fault Connect process grounding

0x00020000 Learn Empty Pipe in Progress Status message –

no corrective action

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Status Handling Normally, the status of the output channels reflects the status of the measurement value, the operating condition of the measurement electronics card, and any active alarm condition.

In Auto mode, OUT reflects the value and status quality of the output channels.

TROUBLESHOOTING Refer to Table D-6 to troubleshoot transducer block problems.

Table D-6. TroubleshootingSymptom Possible Causes Corrective Action

Mode will not leave out of

service (OOS).

Target mode not set Set target mode to something other

than OOS.

Resource block The actual mode of the resource block

is OOS. See Appendix C: Resource

Block: and Section 4: Configuration.

PVor SV is BAD Measurement See Diagnostics, Table D-4.

Flow is above

SENSOR_RANGE.EU100.

PV or SV is UNCERTAIN Measurement Flow is above

PRIMARY_VALUE_RANGE.EU100.

D-6

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Reference Manual 00809-0100-493, Rev CA

August 2004 Rosemount 8742C

Appendix E Field-Removable Electrodes

Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page E-1

Remove the Electrode Assembly . . . . . . . . . . . . . . . . . . . page E-1

Replace the Electrode Assembly . . . . . . . . . . . . . . . . . . . page E-2

SAFETY MESSAGES Instructions and procedures in this section may require special precautions to ensure the safety of the personnel performing the operations.

The field-removable electrode option allows the user to remove the electrode assembly with the flowtube still mounted in the line. Frequently, this option will be used for cleaning the electrode head when coating is of concern.

The flowtube should be drained of any process fluid prior to disassembly of the electrodes. To avoid personal injury, care should be taken when handling electrodes that have been in contact with corrosive process fluids. Take care to avoid rotating the electrode when removing it to avoid damage to the o-ring. Some resistance may be experienced due to the tight o-ring fit.

REMOVE THE ELECTRODE ASSEMBLY

Use the following procedure to remove the electrode assembly from the flowtube.

1. Drain the flowtube of any process fluid prior to disassembly of the electrodes.

2. Remove the screws that secure the electrode cover.

3. Remove the electrode cover and o-ring. It is generally recommended that new o-rings be installed on the electrode and the electrode cover during reassembly.

4. Remove the electrode lead screw that secures the signal wire to the electrode.

5. Remove the electrode retaining nut.

6. Take the electrode from the electrode housing by pulling it straight out, with firm pressure, along the axis of the electrode.

Failure to follow these installation guidelines could result in death or serious injury:

Installation and servicing instructions are for use by qualified personnel only. Performing any servicing other than that contained in this manual may result in death or serious injury. Do not perform any servicing other than that contained in the operating instructions.

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Page 130: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual00809-0100-4793, Rev CA

August 2004Rosemount 8742C

REPLACE THE ELECTRODE ASSEMBLY

Use the following procedure to replace the electrode assembly into the flowtube.

1. Lubricate the o-ring.

2. Install the o-ring on the electrode.

3. Insert the electrode into the electrode housing. Push straight in until the electrode is seated. Avoid rotating the electrode or the electrode housing as this could result in leakage.

4. Secure the electrode into the housing with the retaining nut and lock washer. Tighten the retaining nut to 15 in/oz of torque. Failure to tighten the fasteners can cause loss of liquid tight seal and result in damage to the unit.

5. Secure the signal wire to the electrode with the electrode lead screw.

6. Install the o-ring into the electrode cover.

7. Secure the electrode cover to the flowtube with the screws.

Figure E-1. The Field-Replaceable Electrode

ElectrodeLead Screw

Lock Washer

Housing Nut

O-rIng

NutLock Washer

Housing

Electrode

Insulator CapLockwasher

Spring

8705-1002B03A

E-2

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Index

AAccuracy

Model 8705/8707 . . . . . . .A-8Model 8711 . . . . . . . . . .A-12

Address

Temporary Node . . . . . . . 4-2ADVISE_ACTIVE . . . . . . . . . 4-11ADVISE_ALM . . . . . . . . . . . 4-11ADVISE_ENABLED . . . . . . . 4-11ADVISE_MASK . . . . . . . . . . 4-11ADVISE_PRI . . . . . . . . . . . . 4-11Advisory Alarms . . . . . . . . . . 4-11

ADVISE_ACTIVE . . . . . 4-11ADVISE_ALM . . . . . . . . 4-11ADVISE_MASK . . . . . . . 4-11ADVISE_PRI . . . . . . . . . 4-11

AI Block

Configuration . . . . . . . . . 4-3Alarms

ADVISE_ACTIVE . . . . . 4-11ADVISE_ALM . . . . . . . . 4-11ADVISE_MASKParameter

ADVISE_MASK . . . 4-11ADVISE_PRI . . . . . . . . . 4-11Advisory . . . . . . . . . . . . 4-11FAILED_ACTIVE . . . . . . 4-10FAILED_ALARMS . . . . . . 4-9FAILED_ALM . . . . . . . . 4-10FAILED_ENABLED . . . . . 4-9FAILED_MASK . . . . . . . 4-10FAILED_PRI . . . . . . . . . 4-10MAINT_ACTIVE . . . . . . 4-10MAINT_ALARMS . . . . . 4-10MAINT_ALM . . . . . . . . . 4-11MAINT_ENABLED . . . . . 4-10MAINT_MASK . . . . . . . . 4-10MAINT_PRI . . . . . . . . . 4-10PlantWeb . . . . . . . 4-9, 4-12

Assigning Device Tag and Node Ad-

dress . . . . . . . . . . . . . . . . . . 4-2ATEX directive . . . . . . . . . . . .B-1Auto Zero . . . . . . . . . . . . . . . 4-2Auto Zero Trim . . . . . . . . . . . . 5-4

BBlock Configuration

AI Block

Flow-specific Block Configura-

tion . . . . . . 4-3Block Execution

Scheduling . . . . . . . . . . . 4-5BLOCK_ERR

Resource Block . . . C-5, C-6Transducer Block . . . . . . D-4

Bolts

Flanged . . . . . . . . . . . . . 3-7

CCables

Conduit . . . . . . . . . . . . . 2-5Calibration . . . . . . . . . . . . . . 4-2Cascade Control . . . . . . . . . . 4-7

Configuration . . . . . . . . . 4-7Certifications

ATEX directive . . . . . . . . B-1Electro magnetic compatibility B-2Pressure equipment directive B-1

Communication Input . . . . . . . 2-6Conductivity

Model 8705/8707 . . A-1, A-6Model 8711 . . . . . . . . . A-11

Conduit Connections

Installation . . . . . . . . . . . 2-5Conduit Ports and Connections

Wiring . . . . . . . . . . . . . . 2-4Configuration

Control . . . . . . . . . . . . . . 4-6Links and Scheduling . . . 4-5

Configurations

Installations . . . . . . . . . . 2-2Configuring the Advanced Diagnostics

and Empty Pipe . . . . . . . . . . . 5-4Connection

Wiring . . . . . . . . . . . . . . 2-7Control Configuration . . . . . . . 4-6

DDedicated Conduit . . . . . . . . .2-8DETAILED_STATUS

Transducer Block . . . . . . D-5Device Tag . . . . . . . . . . . . . . .4-2Diagnostics . . . . . . . . . . . . . .5-6Dimensional Drawing

Model 8705/8707 . . . . . A-17Model 8711 . . . . . . . . . A-20

Dimensions

Model 8711 . . . . . . . . . A-13Direction . . . . . . . . . . . . . . . .3-5Disassembly Procedure . . . . . .5-9Downstream/Upstream Piping .3-4

EElectro magnetic compatibility B-2Electronics Housing Replacement 5-9Electronics Trim . . . . . . . . . . .5-2EMC . . . . . . . . . . . . . . . . . . B-2Empty Pipe

Learning . . . . . . . . . . . . .5-4Empty Pipe Functionality . . . . .4-2Environmental Considerations .2-2European Pressure Equipment Direc-

tive . . . . . . . . . . . . . . . . . . . B-1

FFAILED_ACTIVE alarms . . . .4-10FAILED_ALARMS . . . . . . . . . .4-9

FAILED_ACTIVE . . . . . .4-10FAILED_ALM . . . . . . . . .4-10FAILED_ENABLED . . . . .4-9FAILED_MASK . . . . . . .4-10FAILED_PRI . . . . . . . . .4-10

FAILED_ALM . . . . . . . . . . . .4-10FAILED_ENABLED alarms . . .4-9FAILED_MASK alarms . . . . .4-10FAILED_PRI alarms . . . . . . .4-10FEATURES

FEATURES_SEL . . . . . . .4-9Features . . . . . . . . . . . . . . . .4-8FEATURES, FEATURES_SEL .4-8

Features . . . . . . . . . . . . .4-8Reports . . . . . . . . . . . . . .4-8Soft W Lock, Hard W Lock 4-8

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Unicode . . . . . . . . . . . . . 4-8Field-Removable Electrodes . .E-1Flange Bolts . . . . . . . . . . . . . 3-7Flanges

Class 150 . . . . . . . . . . . 3-11Class 300 . . . . . . . . . . . 3-11

Flow Direction . . . . . . . . 3-5, 3-6Flowtube

Orientation . . . . . . . . . . . 3-4Flowtube Calibration Number . 4-2

16-digit Calibration Number 4-2Empty Pipe Functionality . 4-2

Function Blocks

Configuring Links and Scheduling

Block Execution . . . . . . 4-5

GGaskets . . . . . . . . . . . . . . . . 3-7

Installation

Wafer Flowtube . . . . 3-10Ground Connection

Internal . . . . . . . . . . . . . 3-13Protective . . . . . . . . . . . 3-13

Grounding . . . . . . . . . . . . . . 3-12Grounding Electrodes . . 3-13Grounding Rings . . . . . . 3-13Lining Protectors . . . . . . 3-13Process Grounding . . . . 3-12

HHardware Maintenance . . . . . . 5-9Hardware Replacement

Electronics Boards . . . . . 5-10Electronics Housing . . . . . 5-9Terminal Block . . . . . . . . 5-10

Hardware switches

Installation . . . . . . . . . . . 2-2Hazardous Locations Certifications

Model 8705/8707 . . . . . . .B-3

IInput Power . . . . . . . . . . . . . . 2-9Installation

Category . . . . . . . . . . . . 2-6Conduit Connections . . . . 2-5Diagram

Cable Preparation . . . 2-5Field Wiring . . . . . . . 2-7Power Connections . . 2-8

Electrical . . . . . . . . . . . . 2-6Hardware Switches . . . . . 2-2Jumpers . . . . . . . . . . . . . 2-2Options . . . . . . . . . . . . . 2-2Process Leak

Containment . . . . . . 3-17Process Leak Protection (Optional)

2-10

Relief Valves . . . . . . . . 3-16Safety Messages . . . . . . 3-1Simulate Enable . . . . . . . 2-2Transmitter Power . . . . . . 2-8Transmitter Security . . . . 2-2Wafer Flowtube . . 3-10, 3-12

Alignment and Bolting 3-10Flange Bolts . . . . . . 3-11Gaskets . . . . . . . . . 3-10

Wiring . . . . . . . . . . . . . . 2-6Installation Category . . . . . . . 2-6Installation Considerations

Environmental . . . . . . . . 2-2Internal

Ground Connection . . . . 3-13

JJumpers

Changing Settings . . . . . . 2-3

LL_TYPE . . . . . . . . . . . . . . . . 4-3Learning Empty Pipe . . . . . . . 5-4LIM_NOTIFY . . . . . . . . . . . . 4-9Lining Protectors

Grounding . . . . . . . . . . 3-13Local Display Configuration . . 5-2Local Display Rotation . . . . . 5-11

MMAINT_ACTIVE . . . . . . . . . 4-10MAINT_ALARMS . . . . . . . . 4-10

MAINT_ACTIVE . . . . . . 4-10MAINT_ALM . . . . . . . . 4-11MAINT_ENABLED . . . . 4-10MAINT_MASK . . . . . . . 4-10MAINT_PRI . . . . . . . . . 4-10

MAINT_ALM . . . . . . . . . . . . 4-11MAINT_ENABLED . . . . . . . 4-10MAINT_MASK . . . . . . . . . . 4-10MAINT_PRI . . . . . . . . . . . . 4-10Maintenance

Hardware . . . . . . . . . . . . 5-9MAX_NOTIFY . . . . . . . . . . . . 4-9

LIM_NOTIFY . . . . . . . . . 4-9Messages

Safety . . . . . . . . . . . . . . 1-3Mode

Transducer Block . . . . . . D-5MODE_BLK

Transducer Block . . . . . . D-5Mounting

Model 8705/8707 . . A-4, A-8Model 8711 . . . . . . . . . A-12

NNode Address . . . . . . . . . . . .4-2North American Response Center 1-3

OOperation . . . . . . . . . . . . . . . .4-1Orientation

Flowtube . . . . . . . . . . . . .3-4Overcurrent Protection . . . . . .2-6

PParameter

ADVISE_ACTIVE . . . . . .4-11ADVISE_ALM . . . . . . . .4-11ADVISE_ENABLED . . . .4-11ADVISE_PRI . . . . . . . . .4-11DEFINE_WRITE_LOCK . .4-8FAILED_ACTIVE . . . . . .4-10FAILED_ALARMS . . . . . .4-9FAILED_ALM . . . . . . . . .4-10FAILED_ENABLED . . . . .4-9FAILED_MASK . . . . . . .4-10FAILED_PRI . . . . . . . . .4-10FEATURES . . . . . . . . . . .4-8FEATURES_SEL . . . . . . .4-9LIM_NOTIFY . . . . . . . . . .4-9MAINT_ACTIVE . . . . . . .4-10MAINT_ALARMS . . . . . .4-10MAINT_ALM . . . . . . . . .4-11MAINT_ENABLED . . . . .4-10MAINT_MASK . . . . . . . .4-10MAINT_PRI . . . . . . . . . .4-10MAX_NOTIFY . . . . . . . . .4-9RECOMMENDED_ACTION 4-12REPORTS . . . . . . . . . . . .4-8UNICODE . . . . . . . . . . . .4-8WRITE_LOCK . . . . . . . . .4-8

PED . . . . . . . . . . . . . . . . . . B-1PID block . . . . . . . . . . . . . . . .4-4Piping . . . . . . . . . . . . . . . . . .3-4PlantWeb Alarms . . . . . 4-9, 4-12

Advisory . . . . . . . . . . . .4-11FAILED_ALARMS . . . . . .4-9MAINT_ALARMS . . . . . .4-10

Pressure

Model 8705/8707 . . . . . . A-6Model 8711 . . . . . . . . . A-11

Pressure equipment directive . B-1Process Grounding . . . . . . . .3-12Process Leak

Containment . . . . . . . . .3-17Protection . . . . . . . . . . .2-10

Proportional/Integral/Derivative (PID)

function block . . . . . . . . . . . . .4-4Protection

Overcurrent . . . . . . . . . . .2-6Protective

Ground Connection . . . .3-13

Index-2

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Reference Manual 00809-0100-4793, Rev CA

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RRecommended Actions . . . . . 4-12

PlantWeb Alarms . . . . . . 4-12RECOMMENDED_ACTION . 4-12Relief Valves . . . . . . . . 3-16, E-2Reports . . . . . . . . . . . . . . . . . 4-8Resource Block . . . . . . . . . . .C-1

FEATURES, FEATURES_SEL 4-8

Modes . . . . . . . . . . . . . .C-5Parameters . . . . . . . . . . .C-1

BLOCK_ERR . . C-5, C-6WRITE_LOCK . . . . .C-6

Parameters and Descriptions C-1Resource Block Errors . . .C-5Troubleshooting . . . . . . . .C-6

Return of Materials . . . . . . . . . 1-3

SSafety Messages . . . . . . . . . . 1-3Security . . . . . . . . . . . . . . . . 4-8Simulate Enable . . . . . . . . . . . 2-2Soft W Lock, Hard W Lock . . . 4-8Specifications

Model 8705 and Model 8707

accuracy . . . . . . . . .A-8ambient temperature limits

A-6ASME/ANSI . . . . . . .A-8conductivity limits A-1, A-6dimensional drawing A-17electrical connections A-9electrodes . . . . . . . .A-8functional specifications A-5grounding electrode . .A-9grounding rings . . . . .A-9hazardous locations .B-3interchangeability . . .A-5line sizes . . . . . . . . .A-5lining . . . . . . . . . . . .A-8lining protectors . . . .A-9mounting position effect A-4,

A-8non-wetted materials .A-8performance specifications

A-8physical specifications A-8pressure limits . . . . .A-6

process conditions . . A-8process temperature limits

A-6process wetted materials A-8service . . . . . . . . . . A-5submergence protection A-6upper range limit . . . A-5vacuum limits . . . . . . A-6vibration effect . . . . . A-8weight . . . . . . . . . . . A-9

Model 8711

accuracy . . . . . . . . A-12ambient temperature limits

A-11ASME/ANSI . . . . . . A-12conductivity limits . . A-11dimensional drawings A-20electrical connections A-13electrodes . . . . . . . A-12flowtube dimensions A-13functional specifications A-11grounding electrode A-13grounding rings . . . A-13interchangeability . . A-11line sizes . . . . . . . . A-11lining . . . . . . . . . . . A-12mounting position effect A-12non-wetted materials A-12performance specifications

A-12physical specifications A-12process conditions . A-12process temperature limits

A-11process-wetted materials .

A-12safe working pressure A-11service . . . . . . . . . A-11upper range limit . . A-11vibration effect . . . . A-12weight . . . . . . . . . . A-13

Switches . . . . . . . . . . . . . . . 2-2Changing Settings . . . . . . 2-3

TTag

Device . . . . . . . . . . . . . .4-2Temperature . . . . . . . . . . . . . .2-6

Model 8705/8707 . . . . . . A-6Model 8711 . . . . . . . . . A-11

Terminal Block Replacement .5-10Transducer Block

Diagnostics . . . . . . . . . . D-5Errors . . . . . . . . . . . . . . D-4Flow-specific Block Configuration

Values . . . . . . . . . . . . D-3Modes . . . . . . . . . . . . . . D-5Parameters . . . . . . . . . . D-2

BLOCK_ERR . . . . . D-4MODE_BLK . . . . . . D-5XD_ERROR . . . . . . D-4

Parameters and Descriptions D-2Transducer block

Parameters

DETAILED_STATUS D-5Transmitter

Communication Input . . . .2-6Transmitter Coil Input

Wiring . . . . . . . . . . . . . . .2-5Transmitter Power . . . . . . . . . .2-8Transmitter Security . . . . . . . .2-2Transmitter Symbols . . . . . . . .2-2Transmitter Wiring Connection .2-7Transporting System . . . . . . . .3-3Triggered Diagnostics

Auto Zero Failure . . . . . . .5-8Coil Drive Open Circuit . . .5-7Electrode Signal Fault Detected

5-8Electronics Failure . . . . . .5-8Electronics Trim Failure . .5-8Empty Pipe Detected . . . .5-7Grounding/ Wiring Fault . .5-8High Process Noise Detected 5-7Primary Range Value Exceed 5-7Reverse Flow Detected . . .5-7Sensor High Limit Exceeded 5-7

Troubleshooting

Diagnostic Messages . . . .6-3Function Block Errors . . . .6-3Installed Flowtube Tests . .6-3Process Noise . . . . . . . . .6-3Resource Block . . . . . . . C-6Uninstalled Flowtube Tests 6-5Wiring Errors . . . . . . . . . .6-3

Index-3

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UUnicode . . . . . . . . . . . . . . . . 4-8Upstream/Downstream Piping . 3-4

Accuracy

Ensuring . . . . . . . . . 3-4

VVCR . . . . . . . . . . . . . . . A-3, C-6Vibration

Model 8705/8707 . . . . . . .A-8Model 8711 . . . . . . . . . .A-12

Virtual Communications Relationships C-6

WWarning . . . . . . . . . 1-3, 2-1, 5-1Weight

Model 8705/8707 . . . . . . .A-9Model 8711 . . . . . . . . . .A-13

Wiring . . . . . . . . . . . . . . . . . . 2-6Conduit Ports and Connections

2-4Dedicated Conduit . . . . . . 2-8Installation Category . . . . 2-6Temperature . . . . . . . . . . 2-6

WRITE_LOCK

Resource Block . . . . . . . .C-6

XXD_ERROR

Transducer Block . . . . . . .D-4

Index-4

Page 135: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson
Page 136: Rosemount 8742C Magnetic Flowmeter Transmitter - Emerson

Reference Manual00809-0100-4793, Rev CA

August 2004

Emerson Process Management

© 2004 Rosemount Inc. All rights reserved.

¢00809-0100-4793¥¤

Rosemount and the Rosemount logotype are registered trademarks of Rosemount Inc.PlantWeb is a registered trademark of one of the Emerson Process Management group of companies.All other marks are the property of their respective owners.

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