Hotspot IR User Guide - Publication Nº 812155

HotSpot IR Conveyor Monitoring Systemi

Q U A L I T Y C U S T O M E R S O L U T I O N S

HOTSPOT IRUSER GUIDEPUBLICATION NO 812155LANGUAGE: ENGLISH

Health and Safety InformationRead all of the instructions in this booklet - including all the WARNINGS and CAUTIONS - before using this product. If there is any instruction which you do not understand, DO NOT USE THE PRODUCT.

Safety SignsWARNINGIndicates a potentially hazardous situation which, if not avoided, could result in death or personal injury.

CAUTIONIndicates a potentially hazardous situation which, if not avoided, could result in minor or moderate injury to the user or users, or result in damage to the product or to property.

CAUTIONWarning laser radiation.Embedded laser (diode) is Class 1M, <5mW. Do not view directly with optical magnifiers.

LASER RADIATIONDO NOT STARE INTO BEAMCLASS 2 LASER PRODUCT

1mW MAX OUTPUT AT 635nmIEC 60825-1:1994

IMPORTANT: Please note radiation safety warning, where this symbol appears.

NOTEIndicates a potentially hazardous situation which, if not avoided, could result in damage or loss of data.

Signs and Symbols used on equipment and Documentation

Caution, risk of electric shock.

Caution, attention to possibility of risk of damage to the product, process or surroundings. Refer to instruction manual.

Caution, hot surface.

Protective Conductor Terminal.

Observe precautions for handling electrostatic discharge sensitive devices.

Equipment OperationUse of this instrument in a manner not specified by AMETEK Land may be hazardous. Read and understand the user documentation supplied before installing and operating the equipment.The safety of any system incorporating this equipment is the responsibility of the assembler.

Protective Clothing, Face and Eye ProtectionIt is possible that this equipment is to be installed on, or near to, machinery or equipment operating at high temperatures and high pressures. Suitable protective clothing, along with face and eye protection must be worn. Refer to the health and safety guidelines for the machinery/equipment before installing this product. If in doubt, contact AMETEK Land.

Electrical Power SupplyBefore working on the electrical connections, all of the electrical power lines to the equipment must be isolated. All the electrical cables and signal cables must be connected exactly as indicated in these operating instructions. If in doubt, contact AMETEK Land.

IMPORTANT INFORMATION - PLEASE READ

Health and Safety InformationRead all of the instructions in this booklet - including all the WARNINGS and CAUTIONS - before using this product. If there is any instruction which you do not understand, DO NOT USE THE PRODUCT.

Safety SignsWARNINGIndicates a potentially hazardous situation which, if not avoided, could result in death or personal injury.

CAUTIONIndicates a potentially hazardous situation which, if not avoided, could result in minor or moderate injury to the user or users, or result in damage to the product or to property.

CAUTIONWarning laser radiation.Embedded laser (diode) is Class 1M, <5mW. Do not view directly with optical magnifiers.

LASER RADIATIONDO NOT STARE INTO BEAMCLASS 2 LASER PRODUCT

1mW MAX OUTPUT AT 635nmIEC 60825-1:1994

IMPORTANT: Please note radiation safety warning, where this symbol appears.

NOTEIndicates a potentially hazardous situation which, if not avoided, could result in damage or loss of data.

Signs and Symbols used on equipment and Documentation

Caution, risk of electric shock.

Caution, attention to possibility of risk of damage to the product, process or surroundings. Refer to instruction manual.

Caution, hot surface.

Protective Conductor Terminal.


Equipment OperationUse of this instrument in a manner not specified by AMETEK Land may be hazardous. Read and understand the user documentation supplied before installing and operating the equipment.The safety of any system incorporating this equipment is the responsibility of the assembler.

Protective Clothing, Face and Eye ProtectionIt is possible that this equipment is to be installed on, or near to, machinery or equipment operating at high temperatures and high pressures. Suitable protective clothing, along with face and eye protection must be worn. Refer to the health and safety guidelines for the machinery/equipment before installing this product. If in doubt, contact AMETEK Land.

Electrical Power SupplyBefore working on the electrical connections, all of the electrical power lines to the equipment must be isolated. All the electrical cables and signal cables must be connected exactly as indicated in these operating instructions. If in doubt, contact AMETEK Land.

IMPORTANT INFORMATION - PLEASE READ StorageThe instrument should be stored in its packaging, in a dry sheltered area. The maximum storage temperature is 10 °C (18 °F) higher than the maximum operating temperature.The minimum storage temperature is 10 °C (18 °F) lower than the minimum operating temperature.Refer to the Technical Specification for details of the operating temperature limits.UnpackingCheck all packages for external signs of damage. Check the contents against the packing note.Lifting InstructionsWhere items are too heavy to be lifted manually, use suitably rated lifting equipment. Refer to the Technical Specification for weights. All lifting should be carried out in accordance with local and national regulations.

Contact UsUK - DronfieldLand Instruments InternationalTel: +44 (0) 1246 417691

USA - PittsburghAMETEK Land, Inc.Tel: +1 412 826 4444

ChinaAMETEK Land China Service Tel: +86 21 5868 5111 ext 122

IndiaAMETEK Land India ServiceTel: +91 - 80 67823240

Email: [email protected]

Web: www.ametek-land.com

For further details on all AMETEK Land offices, distributors and representatives, please visit our website.

Return of Damaged GoodsIMPORTANT If any item has been damaged in transit, this should be reported to the carrier and to the supplier immediately. Damage caused in transit is the responsibility of the carrier not the supplier.DO NOT RETURN a damaged instrument to the sender as the carrier will not then consider a claim. Save the packing with the damaged article for inspection by the carrier.

Return of Goods for RepairIf you need to return goods for repair please contact our Customer Service Department. They will be able to advise you on the correct returns procedure.Any item returned to Land Instruments International should be adequately packaged to prevent damage during transit.You must include a written report of the problem together with your own name and contact information, address, telephone number, email address etc.

Design and Manufacturing StandardsThe Quality Management System of Land Instruments International is approved to BS EN ISO 9001 for the design, manufacture and on-site servicing of combustion, environmental monitoring and non-contact temperature measuring instrumentation.

Registered ISO 9001 Management System approvals apply in the USA

UK Calibration Laboratory: UKAS 0034

USA Calibration Laboratory: ANAB Accredited ISO/IEC 17025

National Accreditation Board for Testing and Calibration Laboratories approvals apply in India.

Operation of radio transmitters, telephones or other electrical/electronic devices in close proximity to the equipment while the enclosure doors of the instrument or its peripherals are open, may cause interference and possible failure where the radiated emissions exceed the EMC directive. The protection provided by this product may be invalidated if alterations or additions are made to the structural, electrical, mechanical or pneumatic parts of this system. Such changes may also invalidate the standard terms of warranty.

CopyrightThis manual is provided as an aid to owners of Land Instruments International’s products and contains information proprietary to Land Instruments International. This manual may not, in whole or part, be copied, or reproduced without the expressed written consent of Land Instruments International Ltd.

Copyright © 2018 Land Instruments International.

Conveyor Monitoring SystemHotSpot IR

Blank

HotSpot IRConveyor Monitoring System

Contents

1 HotSpot IR System Overview 1

1.1 The need for temperature monitoring on a conveyor 11.2 The HotSpot IR solution 11.3 System Components 11.4 SystemConfigurations 21.5 SummarySpecifications 7

2 Installation Details 9

2.1 Installing the HotSpot IR Thermometer 102.2 Installing the HotSpot LMG MkII Processor 15

3 CableConnections 17

3.1 HotspotLMGMkIIProcessorElectricalConnections 173.2 Single Hotspot connected to one or two channel Hotspot LMG MkII Processor 183.3 Hotspot IR Alarm Connections 203.4 Command Input Connections 21

4 ConfiguringtheSystem 23

4.1 Setting the Scan Speed 234.2 ConfiguringtheHotspotLMGMkIIProcessor 274.3 System Review 30

HOTSPOT IR SYSTEM OVERVIEW

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User Guide

1 HotSpot IR System Overview

1.1 The need for temperature monitoring on a conveyorMany materials that are transported on conveyors contain hot inclusions. These hot objects candamagebeltsorcausebeltormaterialfires.Traditionaltemperaturemeasurementmethods are unable to detect small hot spots on a moving conveyor.By detecting these developing hot spots and sending an alarm to the process operator, you can prevent costly shutdowns. Traditional methods, such as visual inspection and single point pyrometers, do not have the speed or the resolution to meet the application demands.

1.2 The HotSpot IR solutionThe HotSpot IR high speed scanning system is used to detect emerging hot spots. The scanner produces up to 100 high resolution temperature scan lines every second, while the hottest point measured is updated and output to the alarm processor every one hundredth of a second. The system covers a measuring range of 20 to 600 °C / 68 to 1112 °F with three instruments.TheHotSpotIRiseasytoinstall:aquickreleasemountingbracketallowsrapidfittingandmaintenance. The mounting bracket is keyed so that the alignment is maintained when returning it to the mounting. A single, quick release cable connects the sensor to the alarm processor.The HotSpot Signal Processor provides a visual display of temperature and alarm status, and features high speed alarm outputs which can be used to send critical system status information to the control room.

1.3 System ComponentsThe HotSpot IR system comprises the following: • HotSpot Signal Processor (LMG MkII)

Single channel or multi-channel options available• Signal & Power Cable

Available in 15m (49ft) and 50m (164ft) lengths• HotSpot IR Thermometer

Compact and robust temperature measurement head available with three temperature measurement ranges available

• Hotspot Terminal Box (Optional) An intermediate power and signal marshalling unit that facilitates the use of multiple

Hotspot thermometers into a single Hotspot Processor• Mounting Accessories

A range of mountings is available which enables installation in ambient temperatures in ambient temperatures up to 125 °C / 260 °F

1 3

2

Key 1 HotSpot Signal Processor (LMG MkII) 2 Signal & Power Cable 3 HotSpot IR Thermometer

Fig. 1-1 HotSpot IR System Components

Conveyor Monitoring System

User Guide

HotSpot IR

2

1.4 System Configurations

1.4.1 Single Hotspot IR with single channel ProcessorThis provides the connections for a single Hotspot IR and displays the peak temperature from the instrument with single channel Processor. Additional peak picker and alarm functions may beconfiguredwithintheProcessor.

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User Guide

1.4.2 Single Hotspot IR with two channel ProcessorSingle Hotspot IR and two channel Hotspot LMG MkII processor provides display and alarm functions for peak temperature and the internal ambient temperature (IATS).


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HotSpot IR

4

1.4.3 Two Hotspots with four channel Hotspot LMG MkII ProcessorTwo Hotspot IRs and four channel Hotspot LMG MkII Processor provides display and alarm functions for peak temperature and the internal ambient temperature (IATS).

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1.4.4 Multiple Hotspots with multi-channel Hotspot LMG MkII Processor and local Hotspot Terminal BoxesWith the addition of Hotspot Terminal Boxes to provide power, peak temperature for up to four Hotspots may be displayed on a multi-channel Hotspot LMG MkII Processor.


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HotSpot IR

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1.4.5 Single Hotspot with one or two channel Hotspot LMG MkII ProcessorAllows distance between Hotspot and Hotspot LMG MkII Processor to be up to 200 m.Refer to the Hotspot Terminal Box with PSU User Guide (Publication Nº 811802) for installation and connection details.

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User Guide

1.5 Summary SpecificationsHotspot IR60 Hotspot IR61 Hotspot IR62

Measurement Range 20 to 250 °C(68 to 482 °F)

50 to 400 °C(122to752°F)

100 to 600 °C(212 to 1112 °F)

Uncertainty * 3 °C (5 °F) 4°C(7°F) 4°C(7°F)Scan Angle 80 °Scan Speed 10 to 100 Hz (user adjustable in 10 Hz increments)

Factory set to 50 HzAmbient Temperature 5 to 60 °C (41 to 140 °F)Dimensions 206 x 209 x 100 mm (8.1 x 8.2 x 3.9 in)Alignment Laser Class 2, maximum output 1.0 mW at 635 nm, IEC60825-1:2001.

Laser indicates position and extents of the scan planeSealing IP65Outputs 4 to 20 mA Peak temperature in each scan line

4 to 20 mA Internal Temperature (range -10 to 90 °C)Emissivity Control Internally selectable between:

• Internal preset switches 0.20 to 1.00 (in 0.01 increments)• External 4 to 20 mA input equivalent to 0.20 to 1.00

NOTE *

‘Uncertainty’ is referred to the display output of the Hotspot IR Processor

INSTALLATION DETAILS

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User Guide

2 Installation DetailsThe installation procedure for the HotSpot IR can be summarised by the following steps:• Choose a measurement location for the HotSpot IR Thermometer, referring to the

target size table (Fig. 2-1 on Page 9).• Install the HotSpot Thermometer in the chosen location, using the appropriate mounting

accessory if applicable. See Section 2.1.• Install the HotSpot LMG MkII Processor in a suitable location i.e. away from the

potentially hostile measurement location, and somewhere with easy access to the front panel display and controls. See Section 2.2. The LMG MkII should be mounted in a panel enclosure.

Note the length of cable between the Thermometer and Processor: either 15 m / 50 ft standard, or optional 50 m / 165 ft.

The Processor requires a 24 Vdc power supply. A DIN Rail mounted mains input supply is provided with the processor. This power supply must be suitably protected within the panel enclosure used for the processor.

• If you are connecting more than two Hotspot IR Thermometers to the LMG MkII, or the Hotspot IR is more than 50 m (150 ft) from the LMG MkII, install the Hotspot IR Terminal Box within 50 m (150 ft) of the Hotspot IR Thermometer.

Refer to the Hotspot Terminal Box with PSU User Guide (Publication Nº 811802) for installation and connection details.

• Connect the Signal & Power Cable between the Thermometer and Processor. If you have a Dual Channel system, there will be two connectors at the ‘processor end’. Refer to the wiring schedule. See Section 3.

You can also connect the Command Input (CMD) for use with either the Peak Picker or Track & Hold signal processing options.

• ConfiguretheHotSpotLMGMKIIProcessortoworkwithyourmodelofHotSpotIRThermometer. Then, setup the parameters in your processor to give the required temperature measurement characteristics and alarm values for your application. See Section 4.


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HotSpot IR

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Fig. 2-1 HotSpot IR Target Distance and Scan Width

NOTE

The laser indicates the position and extents of the scan plane.

* Target distances are quoted as measured from the Hotspot IR window.

X

Y

Scan plane

Thermometer

Product movement

X = Target distance Y = Target widthX = Y 1.68e.g. if Y = 168, X = 100

Xmax = 3000 mm / 118 in

Target Distance (mm)* Target Width (mm) Target Distance (in)* Target Width (in)500 840 20 341000 1680 40 671500 2520 60 1002000 3360 80 1342500 4200 100 1683000 5040 118 198

2.1 Installing the HotSpot IR ThermometerRefer to Fig. 2-1. The HotSpot IR Thermometer is designed to be installed above a moving product, ideally at right angles to the Product movement. The thermometer scans acrosstheproductasitmoves,providingathermalprofileoftheproductwhichisupdatedcontinuously.To ensure that the HotSpot IR scans across the entire width of the product, refer to the target size table (Fig. 2-1) and choose an appropriate Target Distance for the required Target Width.A range of installation and mountings accessories is available, which enable the HotSpot IR to be installed in the majority of locations likely to be encountered in a typical application.

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User Guide

2.1.1 Basic Mounting Plate - Part Nº 031.520The Basic Mounting Plate is used in applications where an Hotspot IR is to be installed in light industrial environments where the ambient temperatures is within the recommended operating range of the instrument and the atmosphere is relatively free from dust and airborne particles.

The basic base plate provides a quick release mounting arrangement for the scanner, making realignment a simple and easy operation.

SpecificationsMaximum Ambient Temperature 60 °C / 140 °FWeight 1.2 kg / 2.6 lbDimensions (L x W x D) 276x176x52.5mm/10.87x6.93x2.07in

Mounting Holes Ø 8.5 mm / 0.34 in to accept M8 screws

Dimensions All dimensions in mm/in

52.5/2.07

22.5/0.89

152/

5.98

276/10.87

240/9.45

Hole Ø8.5/0.34 to accept M8 screws

176/6.93


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HotSpot IR

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2.1.2 Water Cooled, Air Purged Base Plate - Part Nº 031.496The Water Cooled, Air Purged Base Plate is used in applications where an Hotspot IR is to be installed into environments where the ambient temperatures are in the range of 60 to 100 °C / 140 to 212 °F. It is ideally suited to general industrial applications.The air purge facility should be utilised where the operating environment is dusty and airborne particles could contaminate the scanner viewing window. The plate provides a quick release mounting arrangement for the scanner, making realignment a simple and easy operation.IfyouareusinganAMETEKLandPlate-MountedBlower, connection details are given in Section 3.6.

SpecificationsMaximum Ambient Temperature 100 °C / 212 °FCooling Water Requirements 1.5 to 2 litre per min / 0.4 to 0.53 US gal per min @

30 °C / 86 °FMaximum Water Pressure 5.88 Bar / 85 PSI

Cooling Water Connection ¼ in BSP for 9.5 mm / 3/8 in bore water hoseAir Purge Requirements 300 litre per min / 12.36 cu ft per minAir Purge Connection G3/8 suitable for 38 mm / 1.5 in inner diameter

neoprene hoseWeight 2.2 kg / 4.8 lbDimensions (l x w x d) 375x176x100mm/14.76x6.93x3.94inMounting Holes Ø 8.5 mm / 0.34 in to accept M8 screws

375/14.76Max

240/9.45100/3.94

MaxScanner Clamp

152/

5.98

176/6.93


Air purge inletG3/8 thread.38/1.5 I/D

neoprene hose

Water inlet/outlet 1/4BSP.9.5/3/8 ID reinforced PVC hose

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User Guide

240/9.45

152/

5.98

52/2

.05

222/8.74

Stainless Steel

All dimensions in mm/in

Scanner mounting face


2.1.3 Right Angle Mounting Plate - Part Nº 031.438The right angle mounting plate is a simple design intended for basic Hotspot IR mounting.It is designed for wall mounting and is pre-drilled to accept either the Basic Mounting Plate (031.520) or the Water Cooled, Air Purged Base Plate (031.496).Allfixingsaresuppliedwiththeplate.



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HotSpot IR

14

Fig. 2-2 Installing the HotSpot LMG MkII Processor in a panel

Approximately 400mm/15.8in required for card removal

Proc

esso

r fr

ont

beze

l 144

mm

/5.7

in

Mountingpanel

16mm/0.6in

186 (+1.1, -0)mm/7.3 (+0.04, -0)in

138

(+1,

-0)

mm

/54.

3 (+

0.03

-0)

in

Cut-Out

Clamp bar

Retaining screw

Panel

Viewing Side

Maximum panel thickness = 13mm/0.5 in

Processor front bezel 192mm/7.6in

Protection cover 206mm/8.1in

Prot

ection

cov

er 1

58m

m/6

.2in

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User Guide

2.2 Installing the HotSpot LMG MkII ProcessorFull installation details for the Processor are given in the LMG MkII Processor User Guide.Refer to Fig. 2-2. The HotSpot LMG MkII Processor is designed to be installed in a panel. When choosing a location to mount the processor, note that the length of cable between the Thermometer and Processor is either 15 m / 50 ft (standard), or 50 m / 165 ft (optional).

Note

Mounting the processor in a panel is best achieved with two people, one on the viewing side and one at the rear of the mounting panel.

1) Unscrew the four retaining screws on the rear of the processors and slide out the two

clamp bars.2) From the viewing side, insert the processor in the mounting panel.3) From the rear, re-insert the clamp bars into their channels and push them up to touch

the mounting panel.4) Insertandtightentheretainingscrewsuntilthemountingpanelisfirmlygripped

between the processor front panel and the clamp bars.

CAUTION

Do not over-tighten the screws as this will deform the clamp bars.

Electrical connection details for the Hotspot IR Processor are given in Section 3.The Processor requires a 24 V dc power supply. A DIN Rail-mounted mains input power supply is provided with the Processor. If used, this power supply must be suitably protected within the panel enclosure.

2.3 Mounting Plate and Blower connection details

Fig. 2-3 Hotspot IR Mounting Plate and Blower connection detailsRefertothePlateMountedBlowerUserGuide(PublicationNº770-073)forfullInstallationinstructions.

MAX AMBIENT TEMP 60°C

MAX AMBIENT TEMP 50°CBlower AssembliesConsult AMETEK Land for a suitable blower to use in conjunction with anti-static hose.

Cable

Air PipeTo prevent electro-static discharge, suitable air hose must be used. Contact AMETEK Land for options

Blower Mains Power3 core 1mm min to complywith local regulations.Customer supply and fit. Water Services

Flow rate 90-120 l/hrMax Pressure 6 kg/cm2

Max Water Temp 30 °C

Water In/Out1/4 in BSP Thread (Female)

Customer to fit suitablepipe fittings

Air In3/8 in BSP Thread (Female)Customer to fit suitablepipe fittings

CABLE CONNECTIONS

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User Guide

3 Cable Connections

3.1 Hotspot LMG MkII Processor Electrical ConnectionsThe electrical connections to and from the processor are all made via connectors on the rear panel of the processor. Fig. 3-1 shows the location of the connectors.

Fig. 3-1 Rear panel electrical connectionsRefer to the LMG MkII User Guide for full details of all electrical connectors.As a minimum, the Hotspot IR Thermometer connector must be inserted in Channel A.If available, the IATS connector must be inserted in the Thermometer Connection of Channel B.

NOTE

Hotspot IR cable assemblies include connectors for the LMG MkII.

1

2

3

45

6

7

1 Alarm output2 Command input (CMD)3 Retransmission output4 Hotspot IR Thermometer connector or IATS

Connector5 RS485 serial communications output6 USB update port7 Power input +24 V dc


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HotSpot IR

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3.2 Single Hotspot connected to one or two channel Hotspot LMG MkII Processor

Cable Part Nº Description

803885 15 m (45 ft) with Processor Connector803887 50 m (150 ft) with Processor connector803891 15 m (45 ft) with IATS Connector803892 50 m (150 ft) with IATS connector

Fig. 3-2 Hotspot IR Cable options

Fig. 3-2 (opposite) shows the connections required when connecting a single Hotspot IR Thermometer to Hotspot LMG MkII Processor with either single channel (target temperature only) or twin channel (target temperature and Hotspot Internal Ambient Temperature Sensor (IATS)).

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User Guide

HotSpot IR: Signal & Power Cable Wiring ScheduleThermometer

Connector Solder Bucket Nº

Wire Colour Function Hotspot LMG MkII Processor Connector

Thermometer Channel A

Thermometer Channel B (Dual Channel option)

4 Yellow Peak Temperature + 1

3 Green Peak Temperature - 211 Turquoise Emissivity (E+) 3

Screen Screen 41 Red Power Supply (V+) 56 Black Power Supply (V-) 69 Orange Emissivity (E-) 78 Purple Internal Ambient (IATS+) 17 Brown Internal Ambient (IATS-) 22 Blue Not Used N/C5 White Not Used N/C10 Pink Not Used N/C12 Grey Not Used N/C

Fig. 3-3 HotSpot IR Signal & Power Cable wiring schedule

IATS option


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HotSpot IR

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3.3 Hotspot IR Alarm ConnectionsThe HotSpot IR Signal Processor has two alarm outputs on each Thermometer channel. Therefore, if you have Single Channel system, you can have two alarms on the target temperature value and, if you have a Dual Channel system, you can have two additional alarms on the Thermometer Internal Ambient Temperature Signal (IATS).Each alarm output can be connected into your process control system.The alarm output connection schedule is given in Fig. 3-4.A typical use for the alarms is to set two alarm levels:Thefirst(lower)alarmcanbeusedasawarning,withthesecond(higher)alarmusedtoindicate a critical condition.The actual alarm levels for Channel A (target temperature) will be determined by the material being monitored. For the Channel B alarm, you can set a suitable alarm value for the Thermometer internal ambient temperature e.g. 50 °C / 122 °F.For instructions on setting alarms via the HotSpot IR Processor menu system, refer to Section 4.

Alarm output

ALA

RM

S

Pin Nº Function

C

NO

NC

C

NO

NC

Description

Common

Normally Open

Normally Closed

Common

Normally Open

Normally Closed

Alarm 1

Alarm 2

1

2

34

56

Fig. 3-4 HotSpot IR Alarm output connection schedule

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User Guide

12

CMD

Remote switchVin

Switch open

Peak Picker Track & Hold

Switch closed

Peak Pick

Reset

Track

Hold

Note

Remote switch can be replicated by voltage Vin. Where:>+3.0V = Switch open<+1.5V = Switch closed

Fig. 3-6 CMD (Command) input control via a remote switch

3.4 Command Input ConnectionsThe CMD (Command) input connection schedule is given in Fig. 3-5.The command signal is inactive when the voltage is >3.0 V or open circuit (i.e. Track).The command signal is active when the voltage is <1.5 V or short circuit (i.e. Hold).

Fig. 3-5 CMD (Command) input cable connection schedule

The command input can be controlled via a remote switch, as shown in Fig. 3-6.

CMD (Command) inputPin Nº Function

CMD+

CMD-

Description

Command input drive

Command input return12C

MD

CONFIGURING THE SYSTEM

4

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User Guide

4 Configuring the System

4.1 Setting the Scan SpeedThe scanner is supplied with the scan frequency set to 50 Hz. However, you can set the scan frequency to suit your application (See Section 4.1.1). The scan frequency can be set in the range 10 to 100 Hz, in 10 Hz increments.

WARNING

Remove the scanner plug before removing the scanner end plate. This ensures that the unit is electrically isolated

CAUTION


Static-sensitive parts are incorporated in the scanner.

Observe precautions for handling electrostatic discharge sensitive devicesStatic-sensitive parts are incorporated in the scanner.The following tools are required:• 5 mm hexagon key• 3mmflat-bladescrewdriver(plastic).1) Remove the scanner interface plug. This ensures that the scanner unit is electrically

isolated.2) Refer to Fig. 4-1 (overleaf). When viewed from the top of the scanner, the end plate

that you need to remove is the one nearest the scan direction arrow embossed into the scanner body.

3) Remove the four M6 cap-head screws and spring washers from the end plate. Open the scanner to access the internal circuitry.

4) Locate the scan frequency switch. Use a plastic bladed screwdriver to set the dial to the required mark (see to the scan frequency table). Take care to ensure that all other components are undisturbed.

5) Check that the end plate seal is intact and is correctly seated into the seal recess.6) Positiontheendplate,refitandevenlytightenthefourspringwashersandM6cap-head

screws.


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HotSpot IR

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M6 cap-head screws

Scan direction arrow

End plate

End plate seal

Scan frequency switch

Fig. 4-1 Scan Speed Adjustment

Switch Position Nominal scan Frequency (Hz)1 102 203 304 405 50 (Factory default)6 607 708 809 900 100

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User Guide

4.1.1 Choosing a Scan Rate setting with respect to Conveyor Speed

Conveyor speed (m/s)

0.5 1 2 3 5

Scan Rate (Hz)40 13 25 50 75 12550 10 20 40 60 10060 8 17 33 50 8370 7 14 29 43 7180 6 13 25 38 6390 6 11 22 33 56

100 5 10 20 30 50

Distance in millimetres between scan lines as a function of scan rate and conveyor speed.

As the Hotspot IR scans across the moving conveyor, it follows a ‘scan line’ and detects the material temperature along this.The scan line is repeated at regular intervals depending upon the Hotspot scan rate and the conveyor speed. The table above shows the distance between the scan lines.Ideally, all of the material on the conveyor would be scanned for hot spots. However, the coverage is dependent upon scan rate and conveyor speed. The Hotspot IR has a target size of 12 mm diameter at target distances up to 1200 mm. The table below shows the typical percentage material coverage.It is not recommended that the Hotspot instrument is set to scan rates that provide material coverage greater than 100% (shown in red).

Conveyor speed (m/s)

0.5 1 2 3 5

Scan Rate (Hz)40 96 48 24 16 1050 120 60 30 20 1260 144 72 36 24 1470 168 84 42 28 1780 192 96 48 32 1990 216 108 54 36 22

100 240 120 60 40 24

Percentage coverage of material on the conveyor


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HotSpot IR

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4.1.2 Skew AngleWhen a linescanning thermometer is scanning across a moving product travelling along a line, setting the scan frequency too low may cause the scan line to be excessively tilted, or 'skewed'.When the product speed is high and the scan frequency is low, the skew is more apparent, and results in an inaccurate indication of product width.

Product movement

Scan line

Skew angleθ

θ

θ

−−

speedscan

speedproduct TAN

frequencyscan 2

speedproduct TAN 11

dπθ

Example 1 - A greater skew angle is created when high product speeds are combined with low scan frequencies.

Note: During product width calculations, the apparent width is displayed greater than the actual width.

Example 2 - When high product speeds are combined with medium scan frequencies, the skew angle is reduced when compared to Example 1.

Example 3 - When high product speeds are combined with high scan frequencies, the skew angle is negligible when compared to Example 1.

The scan skew angle is given by:

e.g. At a scan frequency of 50Hz, a target distance (D) of 2m and product speed of 10m/s: θ = 0.91°

Apparent (measured) product width = actual product width (ignoring edge correction errors) Cos θ

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User Guide

4.2 Configuring the Hotspot LMG MkII ProcessorFull details of the LMG MkII Processor are given in its own User Guide. The sections below relate to the use of the Processor in a Hotspot IR System.WhentheHotSpotIRProcessorisfirstconnectedtoaHotSpotIRThermometerandasuitablepower supply, the processor displays the temperature reading.There are several parameters that you need to set up in the HotSpot LMG MkII Processor in ordertoconfigureyourmeasurementsystemtomeetyourrequirements:• Select the correct Thermometer Type;• Set the Emissivity value of the product being measured;• Select the required Signal Processing option (i.e. Time Functions)• Set the required Alarm levels;

4.2.1 Getting Started (accessing the menu system)1) Toaccesstheconfigurationmenus,andsetupyoursystemtoyourparticular

requirements, press the Settings button on the Processor front panel.

The processor requires an ‘access code’ to be entered before it allows you into the configurationmenus.

2) Change the displayed access code value to 417.

3) Press the key. The Main Configuration Menu will be

displayed. See Fig. 4-3. 4) Selectanitemtoconfigure, Channel A to D need to be set up to

match the Hotspot IR Thermometer or IATS channel connected to that Channel

Fig. 4-2 Access Code Display

Fig.4-3MainConfigurationMenu


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4.2.2 Selecting the correct Thermometer Type

Hotspot IR Thermometer ChannelsFig.4-4showstheChannelAConfigurationMenu.1) Select the Thermometer Type option

and press the key. A list of thermometers available for

selection is displayed.2) Use the UP and/or DOWN keys to

select your required HotSpot IR thermometer from the list (make sure the temperature range matches that of your thermometer)

Press The correct thermometer is now selected.

IATS Channels1) Select the Temperature Linear option and press the key.2) Enter the temperature range -10 to 90 °C

Press

4.2.3 Setting the Emissivity valueIn order measurement temperature correctly using an infrared thermometer, you need to know the Emissivity value of the product being measured. Emissivity is a measure of the efficiencyinwhichasurfaceemitsthermalenergy.Itisdefinedasthefractionofenergybeingemitted relative to that emitted by a thermally black surface (a black body).For a typical HotSpot IR conveyor monitoring system, such as a coke conveyor, the Emissivity value of the product is 1.00.Emissivity values for a wide range of materials are given in the Thermometer User Guide. For moreassistanceonfindingtheEmissivityvalueofyourproduct,contactAMETEKLand.To set the Emissivity value: 1) FromtheChannelAConfigurationMenu,

use the UP and/or DOWN keys to select the Emissivity option.

The current Emissivity value is displayed.2) Use the UP and/or DOWN keys to set

the required Emissivity value.,

Press the key. The correct Emissivity value is now set.

Fig.4-4ChannelAConfigurationMenu

Fig. 4-5 Channel A Emissivity Setting

29


User Guide

Time

'OFF' Delay

'Hold'mode

'Reset'mode

Adjustable decay rate

'ON' Delay Threshold level

Tem

p

Fig. 4-6 Graphical representation of the Peak Picker time function

4.2.4 Selecting the required Signal Processing option (Time Functions)TherearefivetimefunctionprocessingoptionintheHotSpotIRSignalprocessor:• Peak Picker• Peak Sampler• Track & Hold• Averager• Valley PickerFor a typical conveyor application, the Peak Picker function is most suitable and is described in the following sectionsFor more information on each time functioning processing option, refer to the LMG MkII Processor User Guide.

Peak PickerThe Peak Picker function can be used to monitor the highest temperature measured by the thermometer. This feature is useful especially for moving targets. The Peak Picker used in the HotSpot IR Processor has the following features.Threshold level Temperature above which the Peak Picker is active, used in

conjunction with the ON and OFF delay.ON delay Time period between the temperature rising above the threshold level

and the Peak Picker function switching on.OFF delay Time period between the temperature falling below the threshold level

andthePeakPickerfunctionswitchingoff. In ‘Hold’ mode, at the end of the ‘OFF’ delay, the temperature output

value is held constant until the temperature input next rises above the threshold level.

In ‘Reset’ mode, at the end of the ‘OFF’ delay, the temperature output signal falls to ‘under-range’ until the temperature input next rises above the threshold level.

In'Sample'modethepeakpickersamplesforapre-definedperiod,then outputs this value.

In'PeakSample'mode,thetemperatureissampledinpre-definedintervals and outputs the peak value of the most recent interval.

Decay rate A user-adjustable value at which the stored temperature output signal decays.

The Peak Picker function can be reset via the CMD (Command) input. The CMD input connections and operation are described in Section 3.5.A typical Peak Picker response is shown in Fig. 4-6.


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4.2.5 Hotspot IR System ConfigurationTheHotspotIRthermometercontinuouslyscansaproductwithinitsfieldofviewandoutputs the peak temperature within each scan as a 4 to 20 mA signal to the Processor. This temperature is displayed on the processor screen.Twoalarmsperchannelmaybeconfiguredtoprovideawarningoftemperaturesaboveuser-definedthresholds.RefertothLMGMkIIUserGuide.The functionality of the system may be enhanced by using the Peak Picker function within the Processor.Thisallowstheprocessortoholdthepeakvalueforaspecifiedtimesothatthealarmrelaysremainenergised,eventhoughthematerialhotspothasmovedoutofthefieldof view.TheconfigurationoftheProcessortimefunctionshouldbeasfollows:Type: Peak PickerMode: ResetThreshold: See belowON Delay: 0 sOFF Delay: Typically 1 to 3 sDecay Rate: 0 °C/sThe threshold should be set 10 to 20 °C below the expected peak temperature of the material being monitored.A high alarm should be set to a similar level as the threshold.When a material hot spot is detected above the threshold, level the processor display will hold that peak value and the alarm(s) will energise.Ifthehotspotmovesoutofthefieldofview,thepeakwillbeheldonthedisplayuntilthetemperature falls below the threshold and the OFF Delay is past. The display will then reset to the current temperature detected by the Hotspot IR.The total time that the alarm relay(s) are energised after detection of a hot spot is determined by the threshold setting and the OFF Delay

4.2.6 Setting the required Alarm valuesTheHotSpotLMGMKIISignalProcessorhastwoalarmoutputsoneachThermometerchannel.Therefore, if you have Single Channel system, you can have two alarms on the target temperature value and, if you have a Dual Channel system, you can have two additional alarms on the Thermometer Internal Ambient Temperature Signal (IATS).1) ToaccesstheConfigurationMenu,press

the Settings button 2) Select Alarms option. A typical Alarms

displayisshowninFig.4-7.

For a Dual Channel system, a typical value for a high Internal Ambient Temperature Sensor (IATS) alarm (set on Channel B) would be 50 °C / 128 °F.

4.3 System ReviewYouhavenowsetupthecomponentsofyourHotSpotIRsystemcorrectlyandconfiguredtoyour requirements.You should review your settings periodically to check that your alarms and time function processing values are set to appropriate levels for your application. You should aim to receive no false alarms, but more importantly, the settings must not be such that you could disregard any potentially dangerous temperature readings.

Fig.4-7ChannelAAlarmSetting

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Blank

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For a full list of international offices, please visit our website www.ametek-land.com Copyright © 2019 LAND Instruments International. Continuous product development may make it necessary to change these details without notice. HotSpot IR User Guide, Issue 1, 06 February 2019

HOTSPOT IRCONVEYOR MONITORING SYSTEM

Land Instruments InternationalDronfield, S18 1DJ, England Tel: +44 (0) 1246 417691Email: [email protected] www.ametek-land.com

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Documents

Hotspot IR User Guide - Publication Nº 812155