Metrolog Data Logger - Imbema · PDF fileMetrolog Data Logger ... Pressure Recording (Metrolog NA and 420TA) ... pressure measurement, a ‘quick-fit’ hose connector is fitted

Metrolog Data Logger Installation and Operation Manual

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Metrolog Data Logger

Installation and Operating Manual

Technolog Limited, Ravenstor Road, Wirksworth, Derbyshire DE4 4FY

Tel: +44 (0)1629 823611 Fax: +44 (0)1629 824283 Email: [email protected]


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Contents page Introduction (i) 1 Equipment and Functions 1.1 2 Metrolog Data Loggers 2.1 Metrolog H 2.1 Metrolog P 2.2 Metrolog F 2.2 Metrolog NA 2.3 Metrolog 420TA 2.4 Metrolog 420MET 2.5 3 Measurement and Logging 3.1 Mode 3.1 Timebase, Channel Rate and Logging Interval 3.1 Scale Factor 3.2 Threshold Recording 3.2 Time Resolution 3.3 Flow Recording (Metrolog H, P, F, and 420MET) 3.3 Pressure Recording (Metrolog NA and 420TA) 3.4 4 Display 4.1 5 Configuration Files and Notepad 5.1 Configuration Files 5.1 Viewing Config Files on a PC 5.2 Viewing Config Files on the Psion 5.3 Selecting a Config File 5.3 Loading a Config File 5.4 Notepad 5.5 Setting the Notepad on a PC 5.5 Viewing and Setting the Notepad on the Psion 5.5 6 Installation 6.1 Metrolog H, P, F, NA and 420MET 6.1 Metrolog 420TA with PTX 530 Depth Transmitter 6.3 Flow Input Connections 6.5 Splicing Wires - Recommended Method 6.6 Comms Connections 6.7 7 Setting Up Software and Starting the Logger 7.1 Procedure 7.1 Setting Defaults on a PC 7.1 Setting Defaults on the Psion 7.2 Setting Up the Logger 7.2 Starting the Logger 7.4


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8 Downloading Data 8.1 Data File Names 8.1 Downloading Data to a PC 8.1 Downloading Data to the Psion 8.3 9 Troubleshooting 9.1 Comms Faults 9.1 Measurement Faults 9.1 File Faults 9.2 10 Maintenance and Storage 10.1 Connectors 10.1 Pressure Ports 10.1 Storage 10.1 Battery Changing 10.1 Appendix - Standard Metrolog Config Files A.1 Metrolog Quick-Reference Guide Following page A.1


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Introduction

This manual applies to Metrolog data loggers types H, P, F, NA, 420TA and 420MET. It gives guidance in selecting, configuring, installing and setting up a logger for pressure and flow measurement using the GPS (General Purpose Software) program on a PC and a Psion Organiser, and in downloading data. For other information about the GPS program (and the PMAC program), refer to the software manual. To use this manual, the following sequence is suggested: 1. Refer to Sections 1 and 2 to identify the correct type of Metrolog and other equipment for the

intended application. 2. Refer to Section 3 for an understanding of the ways in which the Metrolog takes

measurements; this will aid in using the software to set up the unit on site. If the instrument has a display, refer to Section 4 for further details.

3. Refer to Section 5 for an understanding of the purpose and selection of Configuration files,

and of the function of the Notepad, to aid in configuring a logger and in setting up on site. 4. Install the Metrolog, referring to Section 6. 5. Set up the Software and the Metrolog, (Section 7) 6. Download the logged data when required, (Section 8). Refer to the remaining Sections as necessary.


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1 EQUIPMENT AND FUNCTIONS Metrolog Systems

Metrolog data loggers are used with software and other hardware to provide a system such as that shown in Figure 1.1. The functions of the equipment, which may be supplied to form a system, are detailed in this Section.

Figure 1.1 EQUIPMENT AND FUNCTIONS Metrolog Data Logger

The various versions of the Metrolog are designed to log pressure, flow, or other parameters as shown in Table 1.1, and may employ either a single channel or two channels as indicated.

Version Channels Application H Flow and Pressure Bi-directional flow on Kent

2000/3000 meters, and pressure P Flow and Pressure Uni-directional flow pulse count,

and pressure F Flow Uni-directional flow pulse count NA Flow and Pressure Uni-directional flow pulse count and

pressure 420TA and 420MET

4-20mA current loop, and Pulse input

4-20mA measurement, and flow pulse count

Table 1.1 METROLOG APPLICATIONS


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The features common to all versions are as follows; for further details, and to identify a particular model, see Section 2. Note: Metrologs of type H, P, F, NA are identified by a label on the side of the case which also specifies the measurement range. The range of the 420 Metrolog 420TA is set by the Transducer range. This Transducer range must be defined in the notepad details during setup. Comms Connector - for connecting a PC, Psion Organiser, or modem, for configuring and setting up the logger, and for downloading logged data. Input Connectors - for connecting pressure and flow measuring devices. For direct connection to a water main for pressure measurement, a ‘quick-fit’ hose connector is fitted. For connection to a pressure transmitter or flow measuring device, appropriate electrical connectors are provided. Display - a liquid crystal display is fitted to some models to show readings without the need to connect a PC or Psion Organiser. For more details, see Section 4.

Pressure Transmitter (for use with Metrolog 420TA and Metrolog 420 MET only)

For depth recording. (Can be factory-fitted with 10-way connector for the 420 MET. No connector is required for the Metrolog 420 TA. Other versions available on request)

Type : PTX530 37.5 mm dia. : PTX1830 17.5 mm dia.

Pressure Input Fittings

For connecting the unit to a water main using quick-fit connectors: Helicoil Hydraulic Hose - flexible hose with connectors Reinforced Rubber Hose - with optional 90º connector at mains end Hydrant Cap - with female quick-fit connector fitted


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Fixing Hardware For supporting data logger and cables, (see Section 6 for more details): Clamping Screws (Metrolog H only) - for securing logger to meter Mounting Brackets - stainless steel or polycarbonate

Cable Hanger Support - stainless steel mesh support for pressure transmitter cable (Metrolog 420TA only).

Input Cables Flow Input - cable with MIL spec. 3-way connector for Metrolog P, NA and MET. 4-20mA Input (Metrolog 420MET only) - cable with MIL spec. 10-way connector.

Recommended Electrical Connection Hardware For splicing input cables to wires from other equipment (such as pulse units): ‘Scotchlok’ Connectors, ‘Scotchlok’ E-9 Tool, PVC Cap, and Silicone Sealant

Comms Cable For connecting data logger to a PC, with 9-way or 25 way connector.

PC Software and Manual GPS-1 or GPS-2 (General Purpose Software) Program for IBM PC, with Manual - DOS program on 3.5in disk, for setting up data logger, downloading data locally (or remotely with modem via PSTN), and analysing data. Configuration Files (.CFG Files) - on separate 3.5in disk, for configuring data logger for a specific application. PMAC (Pressure Management and Control) Program for IBM PC - Windows program for downloading and analysing data via a modem link.


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Psion Organiser For setting up a data logger, and downloading and analysing data, complete with : Datapak - containing GPS program for setting up datalogger, downloading data, and storage of configuration files. Rampak - for storing retrieved data. Comms link - for connecting the Psion Organiser to a data logger.

Modem

Line-powered modem for remote connection of data logger to a PC via a telephone line. There are two types of modem: Technolog LIN 003 - ‘standard’ modem, requiring external BT telephone socket. Technolog LIN 003E - modem in waterproof enclosure with internal BT telephone socket. Lightning Protector Technolog recommend the use of lightning protectors with Modems. Various enclosures can be supplied containing lightning protectors and telephone master sockets to protect modems and data loggers from lightning strikes.


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2 METROLOG DATA LOGGERS Metrolog H (Helix)

Applications The unit is designed to mount directly on a Kent Helix 2000 or 3000 water meter in place

of the mechanical index, for recording flow and pressure. Measurement Flow measurement is bi-directional, using magnetic sensors mounted in the base of the

unit to detect meter rotation; (no flow input connector is required). Pressure is measured by an integral pressure sensor.

Pressure Accuracy/resolution: 0.5% of range Measurement Operating temperature range: +1 to +30° C Ranges: 0 - 100 or 0 - 200 mH2O (absolute) Data available at 15 minute logging intervals: 260 days Flow Data available at 15 minute Measurement logging intervals: 143 days Memory Type: Solid state, non-volatile Size: 32K Clock Type: Crystal controlled calendar, with leap year

adjustment Accuracy: 100 seconds/month max. error over operating

temperature range Recording Interval: Programmable from 1 second to 24 hours Method: Time-based or threshold logging Modes: Rotating store or store till full Power Supply Type: Internal lithium cell Life: Greater than 3 years or 1 million pressure readings Environmental Operating temperature: -20 to +50° C Protection classification: IP 68

Comms connector: MIL spec. 4-way serial port

Optional Display Quick-fit pressure input

connector:1/8in BSP female thread fitted with male probe

Photo sensor


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Metrolog P (Pulse)

Applications Designed for connection to a flow meter pulse unit; records flow and water pressure. Measurement Flow measurement is uni-directional; the instrument counts flow-proportional pulses from

most mechanical and electromagnetic flow meters. Pressure is measured by an integral pressure sensor as in the Metrolog H.

Flow Input Switch closure or logic pulse, maximum rate 15Hz Other Details As Metrolog H

Metrolog F (Flow only)

Applications Single channel flow logger. Measurement Measures flow in the same way as the Metrolog P. Flow Input Integral open-ended cable for connecting to flow sensor. Accepts switch closure or logic

pulse, maximum rate 15Hz Other Details As Metrolog H

Optional Flow input connector:

MIL spec. 3-way

Pre-wired flow input cable: 2-wire

Display (optional)

Display (optional)

Comms connector: MIL spec. 4-way

serial port

Photo sensor Quick-fit pressure input connector:1/8in BSP female thread fitted with male probe


serial port

Photo sensor


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Metrolog NA (Network Analysis)

Applications Flow and pressure recording to the high degree of accuracy required for Network

Analysis. Measurement Measures flow in the same way as the Metrolog P, and pressure by ‘flash point’ or ‘mean

of a number of samples’ (see Section 3). Pressure Accuracy: ± 0.1% of range at ambient temperature Measurement Resolution: 0.1% of range Operating temperature range: +1 to +40°C Power Supply Life: Typically 3 years at 1-minute sample rate Other Details As Metrolog H


MIL spec. 3-way

OptionalDisplay


serial port

Photo sensor Quick-fit pressure input connector:1/8in BSP female thread fitted with male probe


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Metrolog 420TA (4-20mA input - Terminal Assembly)

Applications Can be used in any application where a 4-20mA current loop is available or 4-20mA

Transmitter is used. An optional flow input can be provided through an additional cable gland.

Measurement Normally used with a depth transmitter and calibrated to record depth. The internal

battery and software are capable of operating some types of 4-20mA 2-wire transmitters such as the PTX530 and PTX1830; (contact Technolog for more information). Alternatively the unit can be connected to a remotely-powered 4-20mA loop to record any other parameter. With the optional flow input, the 420TA also measures flow by pulse count in the same way as the Metrolog P.

Current Accuracy: Better than 0.1% at ambient temperature Measurement Resolution Better than 0.02% Data available at 15 minute logging intervals: Almost 6 months Memory Type: Solid state, non-volatile Size: 32K Clock Type: Crystal controlled calendar, with leap year

adjustment Accuracy: 100 seconds/month max. error over operating

temperature range Recording Interval: Programmable from 2 seconds to 24 hours Method: Time-based or threshold logging Modes: Rotating store or store till full Power Supply Type: Internal lithium cell Life: Greater than 5 years at 3-minute sampling rate Output: Flash powered 11V supply for transmitter Environmental Operating temperature: -10 to +50°C Protection classification: IP 65


serial port

Terminal compartment

Filtered vent for atmospheric pressure reference

Cable gland (4-20mA input)

Cable gland (flow input - optional)


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Metrolog 420MET (4-20mA METrolog)

Applications Two-channel data logger with a 4-20mA input for recording depth (or other variable), and

a flow input. Measurements Like the 420TA, can be used with a pressure transmitter for depth logging, or with a

remotely-powered current loop for recording any variable. In addition, the instrument measures flow in the same way as the Metrolog P.

Flow Input Switch closure or logic pulse, maximum rate 15Hz Environmental Operating temperature: -20 to +50°C Protection classification: IP 68 Other Details As Metrolog 420TA


MIL spec. 3-way

4-20mA input connector: MIL spec. 10-way

Display (optional)


serial port

Photo sensor


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3 MEASUREMENT AND LOGGING

The following terms apply to the menu options and parameters used by the GPS program to set up a logger. Where appropriate, the corresponding menu options are given.

Mode

In Rotating Store mode, data is stored until the memory is full. If more data is recorded, the oldest day of data is deleted and the new data is stored in its place. Rotating Store should be used when more than two days of data are required. In Store-till-Full mode, data is stored until the memory is full. The logger then stops logging and reverts to standby. PC: Newlog - Start/Stop - Mode Psion: Start/Stop - Store Mode

Timebase, Channel Rate, and Logging Interval (Figure 3.1)

The Timebase is the ‘heartbeat’ (the clock) which regulates the logging process. At each timebase ‘beat’ the logger checks its configuration to find out whether a measurement should be taken and responds accordingly. The Rate (the channel rate) defines the logging interval (the time between recording two successive measurements), and must be a whole multiple of the timebase. In most single channel applications it is usually recommended that the Timebase and channel Rate are set to the same value. Two logging channels may have different Rates with a common Timebase. PC: Newlog - Setup - Rate Psion: Setup - Rate

Figure 3.1 TIMEBASE, RATE, AND LOGGING INTERVAL


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Scale Factor

The scale factor is used in flow logging where the logger is connected to a meter or pulse unit, and defines the flow volume per pulse. The scale factor is determined by the configuration file, (see Section 5). PC: Newlog - Setup - Notepad Psion: Setup - Notepad

Threshold Recording (Figure 3.2)

Threshold recording can be used to save memory when only significant changes in a measured value are of interest. The input is sampled at the defined Rate, and each measurement is compared with the previously stored value. If the difference is less than the Threshold the new value is not stored; if the difference exceeds the Threshold, the new value is stored. PC: Newlog - Setup - Threshold Psion: Setup - Threshold

Figure 3.2 THRESHOLD RECORDING


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Time Resolution

The Time resolution defines the shortest time interval in which an event can be recorded, and can be set to either 1 second or 10 seconds. It must always be set to 10 seconds for use with a Metrolog unit. PC: Newlog - Start/Stop - Mode Psion: Start/Stop - Time Res

Flow Recording (Metrolog H, P, F, and 420MET) - (Figure 3.3)

These units count the pulses received during each logging interval, and record the total at the logging rate to give the mean flow for the interval, for example as shown in Figure 3.3.

Figure 3.3 FLOW RECORDING BY PULSE COUNT

Note: The Metrolog H senses the rotation of the magnets in the Kent Helix meter, giving eight pulses per revolution. Pulse units, used with other models, usually give 10 pulses per revolution.


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Pressure Recording (Metrolog NA and 420TA) - (Figure 3.4)

Pressure is read at the timebase frequency, and each value is stored temporarily. At the end of each logging interval, the mean value for the interval is calculated and stored. The temporarily stored values for that interval are then cleared.

Figure 3.4 PRESSURE RECORDING - NA AND 420TA


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4 DISPLAY Triggering (Figure 4.1)

The eight-character liquid crystal display is triggered by a photo sensor, and is normally turned off to conserve power.

Figure 4.1 PHOTO SENSOR AND DISPLAY

The display is activated when the ambient light level increases beyond a threshold value, for example if an enclosure containing the unit is opened, if a manhole cover is lifted, if a torch beam is directed on to the sensor, or if a hand is passed over the sensor. When the display is triggered it shows a sequence of messages, and is then turned off again. To turn the display on again, the sensor must detect another threshold increase in light level.

Messages

The messages include current, maximum and minimum values of pressure and flow, and a typical sequence of messages is as follows: METROLOG VER xx (version of Metrolog firmware) TODAY INDEX xxx (current index reading) PRESSURE xxx (current pressure) FLOW xxx (current flow) MAX PRES xxx ( ) MIN PRES xxx (Up to 15 previous days) MAX FLOW xxx ( ) MIN FLOW xxx ( ) Some of the messages are fixed; others depend on the application of the unit. The sequence and timing of the messages are determined by the configuration file, (see Section 5).

Photo sensor Display


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5 CONFIGURATION FILES AND NOTEPAD Configuration Files (Table 5.1)

A configuration file is a small text file that must be loaded into a logger to configure the logger for the required duty. Configuration files (or ‘config’ files) have the filename extension .cfg and are also known as ‘.cfg files’; a typical filename is ‘MP10.CFG’. Each file contains the following information: 1. The versions and types of logger for which the file is intended, 2. The channels to be measured (pressure, flow, or both), 3. The pressure range (for pressure measurement), and the scale factor (for flow

measurement), as applicable. 4. The sequence of display messages (if the logger has a display). 5. Notepad information, entry fields, style and comments. Configuration files are divided into four types, and for the purpose of configuration Metrologs are divided into four versions. Each type of configuration file can only be used with the appropriate version of Metrolog. The names of configuration files indicate the type of Metrolog with which they can be used. If a full set of configuration files is supplied on disk, they may be stored in sub-directories which also indicate the version of Metrolog to which they apply, (see Table 5.1).

Metrolog Type Version Configuration File Names

Sub-directory

H 1.vv MHxx.CFG METRO-H

P, F 2.vv MPxx.CFG METRO-P

NA 3.vv NAPxx.CFG METRO-NA

420TA, 420MET

3.vv M420xx.CFG METRO-TA

vv is the last two digits of the version number, for example 2.03.

xx is a set of characters indicating the file application; for example MP100.CFG is a file for a pressure range of 100m. The word EDTA or EDIT in a filename indicates that the pressure range and/or scale factor can be edited in the Notepad.

Table 5.1 LOGGERS AND CONFIGURATION FILES

Note: A complete list of standard configuration files is given in the Appendix. Modifications to .cfg files to suit specific applications can be obtained from Technolog. Caution: The configuration file selected must match the logger and associated hardware. For copying files to a PC or Psion, refer to the software manual.


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Before viewing the details of a file, make sure that the PC or Psion defaults have been set so that the GPS program can access the configuration files, (see Section 7).

Before loading a file into a Metrolog, select a suitable file as detailed in this Section.

Viewing Config Files on a PC (Figure 5.1)

1. Run the GPS program, and select Newlog - Setup - Configure - Logger to give the display shown in Figure 5.1.

2. Highlight the filename and press F2. The display will show the file application and version of

Metrolog, for example: Metrolog ‘P’ Pressure (100m) Recording ONLY Metrolog 2.03

If the files are stored in sub-directories, highlight the directory name and press Enter. Some files may be stored in further sub-directories whose names indicate the file application, for example MET-P100 = pressure recording, 100m pressure range. Highlight the directory name and press Enter again to view the filenames.

Figure 5.1 SELECTING AND LOADING CONFIGURATION FILES Viewing Config Files on the Psion

Press the ON/CLEAR key, then select Setup - Configure - Logger.


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The display will show the filename and version of the logger, and the file details will scroll from right to left repeatedly. To view another file, press SPACE.

Selecting a Config File

Channels Make sure that the .cfg file and the logger can measure the required channels, (pressure, flow or both). A two-channel logger can be configured to measure only one channel if required; the full 32K of the logger’s memory will then be assigned to that channel. Pressure Range Metrologs for pressure measurement have various pressure ranges, (100 or 200m, 10 or 20 Bar). Check the label on the side of the instrument to make sure that it is the same as that specified in the .cfg file. If you try to configure a 200m logger with a 100m .cfg file, the pressure readings will be inaccurate because the scaling of the transducer will be incorrect. Flow Scale Factor The scale factor determines the flow units shown on the display, and is set by selecting the appropriate .cfg file as detailed below to give one of three possible ranges. Note: The display cannot be configured for ranges other than these. If an editable .cfg file is selected in order to apply a different scale factor to the data, the display will automatically be disabled. The editable file for Metrolog P is MPEDIT.CFG. Scale Factor - Metrolog P/NA/MET/TA Designed for use with standard pulse units such as the LRP and PU10 which produce 10 pulses per revolution, the Metrolog P displays flow values related to 1, 10 or 100 litres/pulse depending on the size of the meter. The corresponding .cfg file configures it as follows and will automatically set the correct scaling for the display:

Meter size Vol/rev Vol/pulse Scale factor .cfg file (in) (litre) (litre) (cum/pulse) 6 1000 100 0.1 MP100.CFG 4 100 10 0.01 MP10.CFG 2 10 1 0.001 MP1.CFG


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Scale Factor - Metrolog H The Metrolog H is mounted directly on a Kent Helix meter that produces eight pulses per revolution. Details of scale factor and .cfg files are as follows:

Meter size Vol/rev Vol/pulse Scale factor .cfg file (in) (litre) (litre) (cum/pulse) 6 1000 125 0.125 MH1000.CFG 4 100 12.5 0.0125 MH100.CFG 2 10 1.25 0.00125 MH10.CFG

Note: Other scale factors may be entered but the display will not show the correct scale value.

Loading a Config File

Before loading a file, make sure that the software defaults have been set and the logger connected to the PC as detailed in Section 7. Loading From a PC Select Newlog - Setup - Configure - Logger. On the display shown in Figure 5.1, highlight the required filename and press Enter. The display will show a progress bar as the file is loaded. Loading From the Psion Select Setup - Configure - Logger, and press SPACE to display the required file. Press EXE to load the file.


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Notepad

The Notepad is a data area in the logger that contains some of the logger configuration parameters and channel scaling. Data entry fields are included for entering site specific information and comments. These details are automatically added to the data file produced by the logger so that the file can be identified after it has been downloaded. Note: To set the Notepad, the software must be configured and the logger connected to the PC as detailed in Section 7.

Setting the Notepad on a PC

Select Newlog - Setup - Notepad. A typical display is as follows; highlighted items can be edited.

Type the required information; press Tab to move to the next item. When all items are complete, press Enter. Select Review to correct errors, Write to load data into Metrolog. Note: The Notepad can be viewed (but not edited) by selecting Newlog - Status - Notepad.

Viewing and Setting the Notepad on the Psion

Select Setup - Notepad. Details of the measurement channels will scroll across the display. Press SPACE to check or enter the site name, and press EXE to move to the next item. When all items are set, press EXE. Select Review to correct errors, Write to load data into Metrolog. Note: The Notepad can be viewed (but not edited) by selecting Status - Notepad.

Measurement channels

Site details

Pressure range and scale factor,

as applicable.


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6 INSTALLATION Metrolog H, P, F, NA and 420MET

Location and Fixing (Figure 6.1) The main considerations in choosing a location are access and frost protection. Caution: Although Metrologs are rated for operation at sub-zero temperatures, temperatures of 1°C and below may result in ice formation that can destroy pressure transducers. If possible, install the data logger in a meter chamber; Figure 6.1 shows typical arrangements. Keep the connecting hoses as short as possible and lag them where necessary. If setting up and downloading are to be carried out locally, make sure that the comms connector on the logger will be easily accessible. Metrolog H: Remove the index from the meter (if fitted), and secure the logger to the meter with the clamping screws. Note: The Metrolog H can also be mounted on top of an LRP or PU10 pulse unit. Metrolog P, F, NA and 420MET: Secure the logger with a wall mounting bracket.

Metrolog P, F, NA or MET Metrolog H

Figure 6.1 METROLOG H, P AND NA - TYPICAL INSTALLATIONS

Meter chamber

Index

Meter

Pulse unit

Metrolog Helicoil

pressure hose

Pipe fitting

Insulating disc Clamping screw

Kent Helix meter

Metrolog H


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Pressure Connections (Figure 6.2) Make connections to the main by means of a hydrant cap or a pipe fitting. Both of these incorporate a ‘quick-fit’ connector which will accept either a reinforced rubber hose or a helicoil hose.

Figure 6.2 PRESSURE CONNECTIONS


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Metrolog 420TA with PTX 530 Depth Transmitter

1. Refer to Figure 6.3. Secure the logger with a mounting bracket, and fit a stainless steel cable hanger support to the cable before making the connections. Remove the lid from the terminal assembly and make the connections as shown.

Figure 6.3 PRESSURE TRANSMITTER INSTALLATION - METROLOG 420TA


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2. Refer to Figure 6.4. There is an airspace between the sensing diaphragm of the depth transmitter and the pressure port. Before installing the transmitter, remove the plastic nosecone, fill the port with water, and refit the nosecone. This will eliminate the possibility of slight error due to the compressibility of air trapped within the port.

Caution: At 1°C and below, water freezing in the port will destroy the transmitter.

Figure 6.4 PRESSURE TRANSMITTER


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Flow Input Connections

Note: Full details of connections to specific types of pulse unit can be obtained from Technolog. Metrolog P, NA, 420TA, 420MET - Figure 6.5

Figure 6.5 FLOW INPUT CONNECTIONS

Metrolog F The pulse input connection is made by the integral open-ended two-wire cable. Connect the cable to the reed switch output of the LRP or PU10 pulse unit, or the flow meter, as follows: Red: flow channel Black: ground


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Splicing Wires - Recommended Method

Use the ‘Scotchlok’ connectors, ‘Scotchlok’ E-9 tool, PVC cap and silicone sealant as follows: 1. Cut and remove the outer insulation from the cables to expose 25mm of insulated wire. 2. Cut the wires evenly. Caution: Do not strip the insulation from the wires.

3. Holding the ‘Scotchlok’ connector with the button side down, insert the wires to be joined fully into the ports.

4. Crimp the button using the ‘Scotchlok’ E-9 tool. Caution: Do not use any other tool for crimping as this could cause the wires to snap or otherwise be damaged inside the connector, giving a faulty joint.

5. Fill a PVC cap one third full of silicone sealant. 6. Push the ‘Scotchlok’ joints into the base of the cap and fill the cap to the top with silicone

sealant. Caution: Make sure that both the connectors and outer cable insulation are fully submersed in the sealant.


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Comms Connections

A PC or Psion organiser can be connected locally by means of the Comms cable supplied and the Comms connector on the logger. For remote connection to a PC, the arrangement shown in Figure 6.6 is required. Note: Technolog recommend the use of lightning protectors with modems.

Figure 6.6 REMOTE COMMS CONNECTIONS


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7 SETTING UP SOFTWARE AND STARTING THE LOGGER Procedure

This Section details the checks and settings needed to set up and start a logger which has been installed on site. Before setting up, it is good practice to check that the PC or Psion’s clock is set correctly. This is especially important if a number of loggers are to be synchronised. The PC or Psion can be set up without the need to connect the logger, if required. For pressure measurement, a pressure gauge will be required to check the pressure at the source.

Setting Defaults on a PC

1. Run GPS Program Switch on the PC and run the software. (Refer to the software manual if necessary). 2. Local or Remote Comms

To use the software for local communication with a logger, no action is required.

For remote communication using a PC it will first be necessary to build up a database of sites and telephone numbers. The software options for remote communication are:

Newlog and Database 3. Comms Ports

Select the port to which the logger will be connected: Defaults - Comms

The Local port is usually COM 1; for local communication, set Modem to Disabled. For remote communication, set Modem to COM 1 or COM 2 as appropriate.

4. Configuration File Directory

Check that the name (and path) of the directory in which the configuration files are stored has been entered:

Defaults - Files 5. Baud Rate

Select Newlog - Defaults - Comms, and set the baud rate for all file transfer to 9600. 6. Save the Settings

Select Defaults - Keep to save the settings.


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Setting Defaults on the Psion

1. Datapak and Rampak

Check that the 128K Datapak is in drive B: (the slot closest to the display). Check that the Rampak (if used) is in drive C: (the slot furthest from the display). 2. Set Drive for Data Storage

Press the ON/CLEAR key, select Defaults - Files - Data and check that the drive is set as follows:

Rampak fitted : drive C: ( ( Press EXC to save changes No Rampak fitted : drive A: ( 3. Set Drive for Configuration Files

Select Defaults - Files - Config, and check that drive B: is selected. 4. Baud Rate

Select Defaults - Comms, and check that the baud rate is set to 9600. If necessary, use the Up and Down arrow keys to correct the setting.

Setting Up the Logger

Note: The following settings cannot be altered while the logger is logging: Threshold Timebase Time Resolution Channel Rate Clock Offset 1. Connect Logger PC: Connect PC to Comms connector on logger with data cable. Psion: Connect Psion to Comms connector on logger with Comms link. 2. Comms Check Always check communications between logger and PC or Psion by confirming the logger’s state before proceeding further: PC: Newlog - Status - State Psion: Status - State If the logger is logging, stop logging: PC: Newlog - Start/Stop Psion: Start/Stop


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Note : If the GPS program on the PC is set up for modem communications, an additional menu option will be

added after selecting Newlog. For local communication, first select Local from this menu.

3. Check Notepad

PC: Newlog - Setup - Notepad

Psion: Setup - Notepad

Enter the site details. Check that the configuration details are correct, indicating that the correct .cfg file has been loaded into the logger.

If an editable .cfg file is in use, enter the pressure range and scale factor as appropriate. If the configuration details are incorrect, refer to Section 5 and load the correct .cfg file. 4. Set Clock

Synchronise the logger’s clock with the PC or Psion’s clock:

PC: Newlog - Setup - Clock

Psion: Setup - Clock

5. Set Channel Rate and Timebase

Note: The Rate must be a multiple of the Timebase.

PC: Newlog - Setup - Rate

Psion: Setup - Rate - Timebase

Setup - Rate - Channel (to set Rate). Use arrow keys to change values, press EXE to confirm. Notes:

1. All Metrologs: The maximum timebase is 30 min. 2. Metrolog NA:

The Metrolog NA starts logging at the next logical division of an hour. Select a Rate to give

logical divisions of 1 minute or 1 hour so that a measurement will be taken at the same time in each hour as the start time, i.e. use:

1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30 or 60 minutes or seconds. 3. Metrolog 420TA and 420MET:

If using a pressure transmitter do not set the Rate to less than 2 min, as the battery life will be severely reduced.


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6. Set Mode and Time Resolution

Set the Mode to Rotating store, and the Time resolution to 10 seconds: PC: Newlog - Start/Stop - highlight items and press Enter to toggle between selections

Psion: Start/Stop - Store Mode Start/Stop - Time Res

7. Zero Pressure Transducer

Vent the pressure port on the Metrolog to atmosphere by disconnecting the pressure hose, and check the pressure reading. Zero the reading if necessary:

PC: Newlog - Status - Input; press F1 to enable the reading to be changed to zero. Psion: Status - Input; press MODE, use the arrow keys to select the digits, and zero the digits by pressing SHIFT and Y (=0). Press Exc to set.

8. Input Check

Reconnect the pressure hose to the source, and check the pressure and flow readings as applicable:

PC: Newlog - Status - Input (use the arrow keys or spacebar to change channels)

Psion: Status - Input (press SPACE to change channels)

The readings should confirm the expected values. If possible, check the actual pressure with a pressure gauge.

Starting the Logger

1. Start Logging

PC: Newlog - Start/Stop - Clr+Start; check that the status display shows that the logger is logging Psion: Start/Stop - Clr+Start - to start logging

Caution:

If a logger is logging and ‘Stop logging’ is selected, any stored data will be cleared when the logger is re-started.

2. Function Check

If the logger has been correctly configured, it will start logging. Confirm this by checking the status:

PC: Newlog - Status - State Psion: Status - State

3. Disconnect Metrolog

Disconnect the PC or Psion, and fit the dust caps to the data connector and any other unused connector on the logger.


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8 DOWNLOADING DATA Data File Names

When data is downloaded from a logger, it is stored in the PC or the Psion as a data file (or files). File names for use with the GPS program have the format: DATAXXYY.NWL - where XX is the file number (the next number available), and YY is the channel number, for example: DATA0101 - file number 1 for channel 1 DATA0102 - file number 1 for channel 2 . If only one channel has been recorded, YY will not appear, for example: DATA03 - file number 3 (only one channel recorded)

Downloading Data to a PC

Caution: Data can be downloaded while the Metrolog is logging. If logging is stopped, any stored data will be cleared when the logger is started again.

1. Connect the PC to the Comms connector on the Metrolog with the data cable, and run the

GPS program. 2. Select Newlog - Data - Read. The software will read the Notepad, and the next screen

display will appear, containing the READ DATA menu:

The items shown on the menu will depend on the configuration of the logger. The example shows the full range of items, which provide the following facilities:

2.1 Latest Each time data is downloaded, the logger stores the date and time. Select this option to download the latest data, i.e. the data stored since the last download.


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2.2 All channels This item will only appear if the logger has been configured to record more than one channel. (In the example the next two options, Pressure and Flow, indicate that the logger has been configured to record two channels). Select this option to download the data from all channels. The software will download each channel in turn, indicating the Measurand (the channel being downloaded) and a countdown as the data is downloaded. When the data has been downloaded, the name of the data file will be displayed; make a note of the filename for later reference.

2.3 Pressure Select one of these options to download data from the appropriate channel and the display will show the details as for All channels. Make a note of the filename for later reference. 2.4 Flow See Pressure

2.5 All/part This option enables all the logged data, or the data for a selected period, to be downloaded. Highlight the option and press Enter. Depending on the selection made previously, the display will show either:

Range of data to read or: Range of data to read The range is shown in the format: last (specified day) - (specified day +1), with a maximum of last 248 - 249 days. Each day begins at midnight, so selecting last 7 - 8 days will give at least one week of data. To change the setting use the Shift and plus (+), and minus (-) keys to select all, or the required range. Press Enter; the display will again show the READ DATA menu, enabling the required channels to be selected. Note: The selected setting will be stored, and will be displayed the next time All/part is selected.

3. After downloading the data and recording the names of the data files, disconnect the PC

from the logger, refit the dust cap to the Comms connector, and shut down the PC.

all

last xx - xx days


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Downloading Data to the Psion

Caution: Data can be downloaded while the Metrolog is logging. If logging is stopped, any stored data will be cleared when the logger is started again.

1. Connect the Psion to the Comms connector on the Metrolog with the data cable, and press

ON/CLEAR. 2. Select Data - Read. The next screen display gives the same facility as the All/part option on

the PC (as detailed in Downloading Data to a PC above). Depending on the selection made previously, the display will show either:

Read all data or Read ** - ** days (Y/N) of data (Y/N) To download all the data, or the pre-selected range of data, press Y. To change the setting, press N. The display will show: Data to read: (present setting)

Use the arrow keys to make the required selection, (all data, or a range from 00 - 01 to a maximum of 98 - 99 days), and press EXE.

3. If the logger has been configured to record more than one channel, the display will show:

All channels One channel This display gives the same options as the All channels option for the PC (as detailed in Downloading Data to a PC above). Selecting All channels will download the data from each channel in turn, save the data in a single data file, and display the name of the file. Make a note of the filename for later reference. Selecting One channel will enable the required channel to be selected, or will enable each channel to be downloaded in turn and the data from each channel to be saved in a separate data file. Answer the prompts with Y or N as appropriate. If the logger has been configured to record only one channel, the display will show: Reading pressure (or flow, as appropriate), and the data will be downloaded. Make a note of the filename for later reference.

4. After downloading the data and recording the names of the data files, disconnect the Psion

from the logger and refit the dust cap to the Comms connector.


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9 TROUBLESHOOTING Comms Faults

Symptom PC or Psion screen shows an error message such as ‘Comms error’, ‘Retrying’ or ‘Transfer aborted’. Possible Cause and Remedy Transient fault - try again to establish communication. Cable, connection or logger fault - check that the correct Comms cable is in use. Check that connectors are dry - if necessary dry out connectors and apply water dispersing lubricant such as Duck Oil, (RS part No. 692-615). If necessary, substitute another logger or cable to identify the faulty component. Wrong Comms port selected - Check Defaults - Comms setting. Battery exhausted - return the unit to Technolog for data recovery and battery renewal.

Measurement Faults

Symptom Data shows incorrect units, or no units. Possible Cause and Remedy Wrong config file in use - select correct file (see Section 5). Wrong scale factor entered in editable Notepad - do not stop logger; enter correct factor while logging and download data again. Symptom Data shows no measurements, or measurements in wrong units, such as volts or pulses/hour. Possible Cause and Remedy Logger defaults set incorrectly - PC: select Newlog - Defaults - Logger, and change Presentation from Raw to Engineering. Psion: select Defaults - Logger, and change Input mode to Eng. units. Symptom Flow measurement shows constant percentage error.


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Possible Cause and Remedy Scale factor too large or too small - select Newlog - Notepad and edit Notepad if possible to correct Scale factor. If config file will not allow Notepad to be edited, send logger to Technolog to recover data. Symptom Pressure measurements too high by a fixed amount. Possible Cause and Remedy Pressure transducer not zeroed - zero transducer and download data again. For zeroing procedure, see Section 7 - (Function Check). Symptom No flow data recorded Possible Cause and Remedy No pulses - check pulse unit or flow meter and connections. Pulse frequency too high (must be less than 15Hz) - re-calibrate flow meter if possible, or substitute suitable flow meter or pulse unit.

File Faults

Symptom PC cannot find file, or copies file to wrong directory. Possible Cause and Remedy Directory (PC) or drive (Psion) setting incorrect - PC: select Newlog - Defaults - Files and set correct paths for files. Psion: select Defaults - Files, and refer to Section 7 - (Setting Up the Psion).


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10 MAINTENANCE AND STORAGE Connectors

Protect electrical connectors with water dispersing lubricant such as Duck Oil, (RS part No. 692-615). Caution: The rubber ‘O’ ring seal may absorb lubricant and swell. Do not soak the unit with lubricant - use a light spray and wipe off the excess. Keep dust caps fitted to connectors at all times when the connectors are out of use.

Pressure Ports

Use two spanners when removing and refitting pressure port nipples. Caution: Do not insert a sharp implement into a pressure port - the port contains a delicate diaphragm which will be damaged.

Storage

Caution: Although Metrologs are rated for operation at sub-zero temperatures, temperatures of 1°C and below may result in ice formation that can destroy pressure transducers. Store data loggers at temperatures above 1°C, making sure that there is no water in the pressure port connections.

Battery Changing

When a logger’s battery is exhausted, return the unit to Technolog for battery renewal. Battery exhaustion is usually indicated by loss of communications, or error messages when downloading data.


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Appendix STANDARD METROLOG CONFIG FILES

METROLOG TYPE CONFIG.FILE DESCRIPTION Metrolog H 100m MH1.cfg Metrolog ‘H’ Pressure (100m) Recording ONLY MH110.cfg Metrolog ‘H’ Pressure (100m) and Flow (10 l/rev) Recording MH1100.cfg Metrolog ‘H’ Pressure (100m) and Flow (100 l/rev) Recording MH11000.cfg Metrolog ‘H’ Pressure (100m) and Flow (1000 l/rev) Recording Metrolog H 200m MH2.cfg Metrolog ‘H’ Pressure (200m) Recording ONLY MH210.cfg Metrolog ‘H’ Pressure (200m) and Flow (10 l/rev) Recording MH2100.cfg Metrolog ‘H’ Pressure (200m) and Flow (100 l/rev) Recording MH21000.cfg Metrolog ‘H’ Pressure (200m) and Flow (1000 l/rev) Recording Metrolog H Flow only

MH10.cfg Metrolog ‘H’ Flow (10 l/rev) Recording ONLY

MH100.cfg Metrolog ‘H’ Flow (100 l/rev) Recording ONLY MH1000.cfg Metrolog ‘H’ Flow (1000 l/rev) Recording ONLY Metrolog P 100m MP1.cfg Metrolog ‘P’ Pressure (100m) Recording ONLY MP11.cfg Metrolog ‘P’ Pressure (100m) and Flow (1 l/pulse) recording MP110.cfg Metrolog ‘P’ Pressure (100m) and Flow (10 l/Pulse) recording MP1100.cfg Metrolog ‘P’ Pressure (100m) and Flow (100 l/Pulse) recording MP1EDIT.cfg Metrolog ‘P’ Pressure (100m) and Flow (EDIT cum/pulse) recording Metrolog P 200m MP2.cfg Metrolog ‘P’ Pressure (200m) Recording ONLY MP21.cfg Metrolog ‘P’ Pressure (200m) and Flow (1 l/Pulse) Recording MP210.cfg Metrolog ‘P’ Pressure (200m) and Flow (10 l/Pulse) Recording MP2100.cfg Metrolog ‘P’ Pressure (200m) and Flow (100 l/Pulse) Recording MP2EDIT.cfg Metrolog ‘P’ Pressure (200m) and Flow (EDIT cum/pulse) Recording Metrolog P 10 Bar P10B.cfg Metrolog P Pressure (10 Bar) Recording ONLY P10B1.cfg Metrolog P Pressure (10 Bar) and Flow (1 l/Pulse) Recording P10B10.cfg Metrolog P Pressure (10 Bar) and Flow (10 l/Pulse) Recording P10B100.cfg Metrolog P Pressure (10 Bar) and Flow (100 l/Pulse) Recording P10BEDIT.cfg Metrolog P Pressure (10 Bar) and Flow (Edit cum/Pulse) Recording PEDIT.cfg Metrolog P Flow (Edit cum/Pulse) Flow Recording Only Metrolog P Flow only

MPEDIT.cfg Metrolog ‘P’ Flow (EDIT cum/pulse) Recording ONLY

MPX1.cfg Metrolog ‘P’ Flow (1 l/Pulse) Recording ONLY MPX10.cfg Metrolog ‘P’ Flow (10 l/Pulse) Recording ONLY MPX100.cfg Metrolog ‘P’ Flow (100 l/Pulse) Recording ONLY Metrolog NA P 200m

NAP2A.cfg Metrolog NA Pressure (200.0m) Recording Only

NAP21A.cfg Metrolog NA Pressure (200.0m) and Flow (1 l/pulse) Recording NAP210A.cfg Metrolog NA Pressure (200.0m) and Flow (10 l/pulse) Recording NAP2100A.cfg Metrolog NA Pressure (200.0m) and Flow (100 l/pulse) Recording NAP2EDTA.cfg Metrolog NA Pressure (200.0m) and Flow (EDIT l/pulse) Recording Metrolog NA P 100m

NAP1.cfg Metrolog NA Pressure (100.0m) Recording Only

NAP11.cfg Metrolog NA Pressure (100.0m) and Flow (1 l/pulse) Recording NAP110.cfg Metrolog NA Pressure (100.0m) and Flow (10 l/pulse) Recording NAP1100.cfg Metrolog NA Pressure (100.0m) and Flow (100 l/pulse) Recording NAP1EDTA.cfg Metrolog NA Pressure (100.0m) and Flow (EDIT l/pulse) Recording

Metrolog TA M420TA_1.cfg Metrolog 4-20mA TA Single Channel M420TA_2.cfg Metrolog 4-20mA TA Two Channel MET-420P.cfg Metrolog 4-20mA TA Depth Measurement MET-420F.cfg Metrolog 4-20mA TA Flow Measurement M420TABH.cfg Metrolog 4-20mA TA Single Channel - Below Datum (Borehole Use)


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Metrolog Quick Reference Guide PC SET DEFAULTS 1. Run GPS program 2. Select Local or Remote Comms Local No action Remote Newlog and Database 3. Comms Ports Defaults - Comms Local - usually Com 1, Modem Disabled. Remote - Modem: Com 1 or Com 2 4. Config File Directory Defaults - Files 5. Save Settings Defaults - Keep 6. Baud Rate Newlog - Defaults - Comms Set 9600 SET UP LOGGER 1. Connect logger to PC 2. Comms Check Newlog - Status - State Remote Comms: Local If logging, stop logging : Newlog - Start/Stop 3. Notepad Newlog -Setup - Notepad 4. Clock Newlog - Setup - Clock 5. Channel Rate and Timebase Newlog -Setup - Rate 6. Mode and Time Resolution Newlog - Start/Stop 7. Zero Pressure Transducer Newlog - Status - Input Vent pressure port, zero reading. F1 to zero reading 8. Input Check Newlog - Status - Input START LOGGER 1. Start Logging Newlog - Start/Stop - Clr+Start 2. Function Check Newlog - Status - State 3. Disconnect Metrolog and Clear Site


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Metrolog Quick Reference Guide PSION SET DEFAULTS 1. Datapak and Rampak Datapak - slot closest to display: drive B Rampak -slot furthest from display: drive C 2. Set Drive for Config Files Rampak fitted: drive C: No Rampak fitted: drive A: 3. Baud Rate Defaults - Comms set 9600 Assumed the Data Logger is configured correctly. If no configuration procedure should be carried out prior to No 3. (Refer to Section 5) SET UP LOGGER 1. Connect logger to Psion 2. Comms Check Status - State If logging, stop logging Start/Stop 3. Notepad Setup - Notepad 4. Clock Setup - Clock 5. Channel Rate and Timebase Setup - Rate - Timebase Setup - Rate - Channel 6. Mode and Time Resolution Start/Stop - Store Mode Start/Stop - Time Res 7. Zero Pressure Transducer Status - Input Vent pressure port, zero reading. SHIFT and Y to zero reading 8. Input Check Status - Input SPACE to change channels START LOGGER 1. Start Logging Start/Stop - Clr+Start 2. Function Check Status - State 3. Disconnect Metrolog and Clear Site

Documents

Metrolog Data Logger - Imbema · PDF fileMetrolog Data Logger ... Pressure Recording (Metrolog NA and 420TA) ... pressure measurement, a ‘quick-fit’ hose connector is fitted