YOKOGAWA WE7231 User Manual
  1. Manuals
  2. Brands
  3. YOKOGAWA Manuals
  4. Control Unit
  5. WE7231
  6. User manual
YOKOGAWA WE7231 User Manual

YOKOGAWA WE7231 User Manual

30-ch fast digital thermometer module
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
User's
Manual
30-CH Fast Digital
Thermometer Module
IM 707231-01E
1st Edition

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the WE7231 and is the answer not in the manual?

Questions and answers

Related Manuals for YOKOGAWA WE7231

Summary of Contents for YOKOGAWA WE7231

  • Page 1 User’s 30-CH Fast Digital Manual Thermometer Module IM 707231-01E 1st Edition...
  • Page 1 User’s 30-CH Fast Digital Manual Thermometer Module IM 707231-01E 1st Edition Yokogawa Electric Corporation...

  • Page 2: Foreword

    This user’s manual contains useful information about the functions and operating procedures of the WE7231 as well as precautions that should be observed during use. This manual is written with the assumption that you will be using the WE7000 Control Software that is included with the measuring station.

  • Page 2: Foreword

    This user’s manual contains useful information about the functions and operating procedures of the WE7231 as well as precautions that should be observed during use. This manual is written with the assumption that you will be using the WE7000 Control Software that is included with the measuring station.

  • Page 3: Checking The Contents Of The Package

    Check that the model name given on the name plate matches the one on your order form. Model Model Suffix Code Description 707231 WE7231 30-CH Fast Digital Thermometer Module 707231 English help message NO. (Instrument Number) When contacting the dealer from which you purchased the instrument, please give them the instrument number. MODEL...

  • Page 3: Checking The Contents Of The Package

    Check that the model name given on the name plate matches the one on your order form. Model Model Suffix Code Description 707231 WE7231 30-CH Fast Digital Thermometer Module 707231 English help message NO. (Instrument Number) When contacting the dealer from which you purchased the instrument, please give them the instrument number. MODEL...

  • Page 4: How To Use This Manual

    How to Use This Manual Structure of the Manual This manual consists of four chapters and an index as shown below. Chapter Title Description Functions Describes the system configuration and functions. Hardware Preparation Explains how to install the module into the measuring station, and how to connect the input.

  • Page 4: How To Use This Manual

    How to Use This Manual Structure of the Manual This manual consists of four chapters and an index as shown below. Chapter Title Description Functions Describes the system configuration and functions. Hardware Preparation Explains how to install the module into the measuring station, and how to connect the input.
  • Page 5 IM 707231-01E...
  • Page 5 IM 707231-01E...

  • Page 6: Table Of Contents

    Contents Foreword ............................1 Checking the Contents of the Package ..................... 2 How to Use This Manual ........................3 Chapter 1 Functions System Configuration and Block Diagram ................1-1 Operation Panel ........................1-3 Setting Measurement Conditions .................... 1-5 Setting the Alarm ........................1-8 Waveform Display, Automatic Saving of Measured Data, File Conversion, and Other Functions ......................

  • Page 6: Table Of Contents

    Contents Foreword ............................1 Checking the Contents of the Package ..................... 2 How to Use This Manual ........................3 Chapter 1 Functions System Configuration and Block Diagram ................1-1 Operation Panel ........................1-3 Setting Measurement Conditions .................... 1-5 Setting the Alarm ........................1-8 Waveform Display, Automatic Saving of Measured Data, File Conversion, and Other Functions ......................

  • Page 7: Chapter 1 Functions

    1.1 System Configuration and Block Diagram System Configuration The following is an example in which the 30-CH Fast Digital Thermometer WE7231 is installed into the measuring station and the measuring station is connected to a PC with the optical fiber cable.

  • Page 7: Chapter 1 Functions

    1.1 System Configuration and Block Diagram System Configuration The following is an example in which the 30-CH Fast Digital Thermometer WE7231 is installed into the measuring station and the measuring station is connected to a PC with the optical fiber cable.
  • Page 8 2-wire system. When measuring resistance or resistance temperature detectors, a 4-wire system is used. A scanning signal is sent through the connecting cable from the WE7231 to the 30-CH Scanner Box, and the response from the device under measurement determines which signals are selected for input to the WE7231.
  • Page 8 2-wire system. When measuring resistance or resistance temperature detectors, a 4-wire system is used. A scanning signal is sent through the connecting cable from the WE7231 to the 30-CH Scanner Box, and the response from the device under measurement determines which signals are selected for input to the WE7231.

  • Page 9: Operation Panel

    The WE7000 Control Software installed in the PC is used to control the 30-CH Fast Digital Thermometer WE7231. The WE7000 Control Software displays operation panels similar to those shown in the figure below. This user’s manual does not explain the operations of the operation panel or waveform monitor.

  • Page 9: Operation Panel

    The WE7000 Control Software installed in the PC is used to control the 30-CH Fast Digital Thermometer WE7231. The WE7000 Control Software displays operation panels similar to those shown in the figure below. This user’s manual does not explain the operations of the operation panel or waveform monitor.
  • Page 10 1.2 Operation Panel Table Entry Window Select the measurement function Select the Label Select the type of thermocouple and resistance temperature detector, and the measuring range Select to use the NULL value Select to calculate the difference from the reference channel Select to average the measured values Set the number of samples used for averaging Enter the alarm output settings...
  • Page 10 1.2 Operation Panel Table Entry Window Select the measurement function Select the Label Select the type of thermocouple and resistance temperature detector, and the measuring range Select to use the NULL value Select to calculate the difference from the reference channel Select to average the measured values Set the number of samples used for averaging Enter the alarm output settings...

  • Page 11: Setting Measurement Conditions

    1.3 Setting Measurement Conditions Selecting the Measurement Function Choose from TC (thermocouple), DCV (DC voltage), RTD (resistance temperature detector), and OHM (resistance). RTD (resistance temperature detector) and OHM (resistance) can only be selected for the odd-numbered channels between CH1 and CH15, or the even-numbered channels between CH16 and CH30.

  • Page 11: Setting Measurement Conditions

    1.3 Setting Measurement Conditions Selecting the Measurement Function Choose from TC (thermocouple), DCV (DC voltage), RTD (resistance temperature detector), and OHM (resistance). RTD (resistance temperature detector) and OHM (resistance) can only be selected for the odd-numbered channels between CH1 and CH15, or the even-numbered channels between CH16 and CH30.
  • Page 12 1.3 Setting Measurement Conditions Difference Computation of the Input Between Two Channels You can assign a channel from other linked 30-CH Fast Digital Thermometer WE7231s or equivalent modules as the reference channel, and calculate the difference against the input of the reference channel, select the Delta check box of the channel on which to calculate the difference.
  • Page 12 1.3 Setting Measurement Conditions Difference Computation of the Input Between Two Channels You can assign a channel from other linked 30-CH Fast Digital Thermometer WE7231s or equivalent modules as the reference channel, and calculate the difference against the input of the reference channel, select the Delta check box of the channel on which to calculate the difference.
  • Page 13 1.3 Setting Measurement Conditions Burn Out This function is available only when TC (thermocouple) is selected as the measurement function. When the Auto check box is selected, burn out is automatically detected during measurement. If you click the Exec button, burn out detection is executed. This setting applies to all channels.
  • Page 13 1.3 Setting Measurement Conditions Burn Out This function is available only when TC (thermocouple) is selected as the measurement function. When the Auto check box is selected, burn out is automatically detected during measurement. If you click the Exec button, burn out detection is executed. This setting applies to all channels.

  • Page 14: Setting The Alarm

    1.4 Setting the Alarm Alarm Type Select the alarm type from the following choices. Off: Do not detect alarms Rise: Output when measured value changes from a value less than the specified upper limit to a value greater than the specified upper limit. Input signal High level Alarm...

  • Page 14: Setting The Alarm

    1.4 Setting the Alarm Alarm Type Select the alarm type from the following choices. Off: Do not detect alarms Rise: Output when measured value changes from a value less than the specified upper limit to a value greater than the specified upper limit. Input signal High level Alarm...
  • Page 15 An alarm is output if any of the groups for which alarm output was specified generate an alarm. When an alarm occurs and the bus trigger signals are set to output from the WE7231 in the Trigger Source/Time Base Source/Arming settings dialog box, if the alarm output conditions are Rise/Fall when the conditions are met, the bus trigger signal is set to True for approximately 1 s.
  • Page 15 An alarm is output if any of the groups for which alarm output was specified generate an alarm. When an alarm occurs and the bus trigger signals are set to output from the WE7231 in the Trigger Source/Time Base Source/Arming settings dialog box, if the alarm output conditions are Rise/Fall when the conditions are met, the bus trigger signal is set to True for approximately 1 µs.

  • Page 16: Waveform Display, Automatic Saving Of Measured Data, File Conversion, 4

    Base Source/Arming” in the WE7000 User’s Manual (IM 707001-01E). Waveform Display You can display measured data as a waveform on the WE7231. When measurement is started on WE7231’s operation panel, waveforms are automatically displayed by default in the WE7000 Control Software’s waveform monitor.

  • Page 16: Waveform Display, Automatic Saving Of Measured Data, File Conversion, 4

    Base Source/Arming” in the WE7000 User’s Manual (IM 707001-01E). Waveform Display You can display measured data as a waveform on the WE7231. When measurement is started on WE7231’s operation panel, waveforms are automatically displayed by default in the WE7000 Control Software’s waveform monitor.

  • Page 17: Name And Functions Of Each Part

    1.6 Name and Functions of Each Part Front Panel Start indicator Lights when measurement starts Input connector Connector for the scanner box * See page 2-5 for the names and functions of each part of the 30-CH Scanner Box (sold separately). 1-11 IM 707231-01E...

  • Page 17: Name And Functions Of Each Part

    1.6 Name and Functions of Each Part Front Panel Start indicator Lights when measurement starts Input connector Connector for the scanner box * See page 2-5 for the names and functions of each part of the 30-CH Scanner Box (sold separately). 1-11 IM 707231-01E...

  • Page 18: Chapter 2 Hardware Preparation

    Please note that the left-most slot is reserved for communications modules, and cannot be used for the WE7231. * The example below shows the WE400 Measuring Station.

  • Page 18: Chapter 2 Hardware Preparation

    Please note that the left-most slot is reserved for communications modules, and cannot be used for the WE7231. * The example below shows the WE400 Measuring Station.
  • Page 19 2.1 Mounting Modules in the Measurement Station • When removing the module Ejection lever Module attachment screw Module attachment screw Note When synchronization of the measurements of multiple input signals is desired (linking the modules), install the multiple digital thermometer modules in adjacent slots. IM 707231-01E...
  • Page 19 2.1 Mounting Modules in the Measurement Station • When removing the module Ejection lever Module attachment screw Module attachment screw Note When synchronization of the measurements of multiple input signals is desired (linking the modules), install the multiple digital thermometer modules in adjacent slots. IM 707231-01E...

  • Page 20: Connecting The 30-Ch Scanner Box And The Input Signal Wire

    Input Signal Wire You cannot connect the input signal wires directly to the 30-CH Fast Digital Thermometer Module WE7231. To connect the input signal wires, you need the 30-CH Scanner Box (model 707815, sold separately). Connecting the 30-CH Scanner Box to the Input Signal Wire WARNING •...

  • Page 20: Connecting The 30-Ch Scanner Box And The Input Signal Wire

    Input Signal Wire You cannot connect the input signal wires directly to the 30-CH Fast Digital Thermometer Module WE7231. To connect the input signal wires, you need the 30-CH Scanner Box (model 707815, sold separately). Connecting the 30-CH Scanner Box to the Input Signal Wire WARNING •...
  • Page 21 2.2 Connecting the 30-CH Scanner Box and the Input Signal Wire • Thermocouple/Voltage Measurement Connects to the H and L terminals of channels 1-30 using a 2 wire system. Each H and L terminal of channel 15C and 30C is a dedicated input terminal for resistance temperature detector/resistance measurement.
  • Page 21 2.2 Connecting the 30-CH Scanner Box and the Input Signal Wire • Thermocouple/Voltage Measurement Connects to the H and L terminals of channels 1-30 using a 2 wire system. Each H and L terminal of channel 15C and 30C is a dedicated input terminal for resistance temperature detector/resistance measurement.
  • Page 22 2.2 Connecting the 30-CH Scanner Box and the Input Signal Wire Attaching and Removing the Terminal Cover Unscrew the two attachment screws in the upper part of the 30-CH Scanner Box and remove the cover as shown in the diagram below. After connecting all of the input signal wires to the input terminals, fasten the input signal wire with the cable clamp, re-attach the terminal cover, and tighten the terminal cover attachment screws.
  • Page 22 2.2 Connecting the 30-CH Scanner Box and the Input Signal Wire Attaching and Removing the Terminal Cover Unscrew the two attachment screws in the upper part of the 30-CH Scanner Box and remove the cover as shown in the diagram below. After connecting all of the input signal wires to the input terminals, fasten the input signal wire with the cable clamp, re-attach the terminal cover, and tighten the terminal cover attachment screws.
  • Page 23 2.2 Connecting the 30-CH Scanner Box and the Input Signal Wire Connecting to a Module CAUTION • Turn OFF the standby power switch on the measuring station when connecting a module to the 30-CH Scanner Box. As in the diagram below, use the cable that came with the 30-CH Scanner Box between the scanner box and the module input connector.
  • Page 23 2.2 Connecting the 30-CH Scanner Box and the Input Signal Wire Connecting to a Module CAUTION • Turn OFF the standby power switch on the measuring station when connecting a module to the 30-CH Scanner Box. As in the diagram below, use the cable that came with the 30-CH Scanner Box between the scanner box and the module input connector.

  • Page 24: Chapter 3 Troubleshooting And Maintenance

    3.1 Troubleshooting • If servicing is required, or if the instrument is not operating correctly after performing the corrective actions listed below, contact your nearest YOKOGAWA dealer as listed on the back cover of this manual. • To verify that the module is operating correctly, perform the self test described on the next page.

  • Page 24: Chapter 3 Troubleshooting And Maintenance

    3.1 Troubleshooting • If servicing is required, or if the instrument is not operating correctly after performing the corrective actions listed below, contact your nearest YOKOGAWA dealer as listed on the back cover of this manual. • To verify that the module is operating correctly, perform the self test described on the next page.

  • Page 25: Self Test

    Verifying Test Results If a value other than 0 is displayed in the Result box of the Self Test dialog box, the module is probably malfunctioning. Contact your nearest YOKOGAWA representative as listed on the back cover of this manual.

  • Page 25: Self Test

    Verifying Test Results If a value other than 0 is displayed in the Result box of the Self Test dialog box, the module is probably malfunctioning. Contact your nearest YOKOGAWA representative as listed on the back cover of this manual.

  • Page 26: Maintenance

    There are no parts in this module that require periodic replacement. Calibration We recommend that you calibrate the measurement module once a year to assure its measurement accuracy. Contact your nearest YOKOGAWA representative as listed on the back cover of this manual for calibration. IM 707231-01E...

  • Page 26: Maintenance

    There are no parts in this module that require periodic replacement. Calibration We recommend that you calibrate the measurement module once a year to assure its measurement accuracy. Contact your nearest YOKOGAWA representative as listed on the back cover of this manual for calibration. IM 707231-01E...

  • Page 27: Chapter 4 Specifications

    Chapter 4 Specifications 4.1 Performance Specifications Input Signal Thermocouple: K, E, J, T (2 wire system) DC voltage: 20 mV, 200 mV, 2 V, 20 V (2 wire system) Resistance temperature detector: Pt100 (4 wire system) Resistance: 20 , 200 , 2 k , 20 k , 200 k , 2 M (4 wire system) Number of input channels With only 2 wire systems connected: 30, with only 4 wire systems connected: 16...

  • Page 27: Chapter 4 Specifications

    Chapter 4 Specifications 4.1 Performance Specifications Input Signal Thermocouple: K, E, J, T (2 wire system) DC voltage: 20 mV, 200 mV, 2 V, 20 V (2 wire system) Resistance temperature detector: Pt100 (4 wire system) 20 Ω, 200 Ω, 2 kΩ, 20 kΩ, 200 kΩ, 2 MΩ (4 wire Resistance: system) Number of input channels...
  • Page 28 4.1 Performance Specifications Measurement Range and Resolution TC Input Type Measurement Range Resolution –200.0 to 1300.0 C 0.1 C –200.0 to 800.0 C 0.1 C –200.0 to 1100.0 C 0.1 C –200.0 to 400.0 C 0.1 C Units: C, K or F can be selected. Reference junction compensation: internal or external can be selected.
  • Page 28 4.1 Performance Specifications Measurement Range and Resolution TC Input Type Measurement Range Resolution –200.0 to 1300.0°C 0.1°C –200.0 to 800.0°C 0.1°C –200.0 to 1100.0°C 0.1°C –200.0 to 400.0°C 0.1°C Units: °C, K or °F can be selected. Reference junction compensation: internal or external can be selected. Burn out: auto or manual detect can be selected.
  • Page 29 4.1 Performance Specifications DC voltage (% of reading + digit) Offset error (digit) (for every integration time) Range Gain error (%) 100 ms 16.7/20 ms 4 ms 1 ms 20 mV 0.03 200 mV 0.025 0.02 20 V 0.035 Resistance (% of reading + digit) Offset error (digit) (for every integration time) Range Gain error (%)
  • Page 29 4.1 Performance Specifications DC voltage ±(% of reading + digit) Offset error (digit) (for every integration time) Range Gain error (%) 100 ms 16.7/20 ms 4 ms 1 ms 20 mV 0.03 200 mV 0.025 0.02 20 V 0.035 Resistance ±(% of reading + digit) Offset error (digit) (for every integration time) Range Gain error (%)

  • Page 30: Factory Default Settings

    4.2 Factory Default Settings Function (measurement function): TC Range (measurement range): Type T Reference Channel: CH 1 on the module Sampling Interval: 0.80 s Burn Out (Auto Detect): Off Alarm Hold: Off Channel: CH 1 on the module NULL (use NULL value): Off Delta (difference measurement): Off Averaging: Off Type (alarm type): Off...

  • Page 30: Factory Default Settings

    4.2 Factory Default Settings Function (measurement function): TC Range (measurement range): Type T Reference Channel: CH 1 on the module Sampling Interval: 0.80 s Burn Out (Auto Detect): Off Alarm Hold: Off Channel: CH 1 on the module NULL (use NULL value): Off Delta (difference measurement): Off Averaging: Off Type (alarm type): Off...

  • Page 31: General Specifications

    4.3 General Specifications Safety Standards Complies with CSA C222 No. 1010.1 and EN61010-1, conforms to JIS C1010-1 Standard Operating Conditions Ambient Temperature: 23 5 C Ambient Humidity: 50 10% RH After the warm-up time has passed. Warm-up Time At least 1 hour Operating Condition Same as those of the measuring station Storage Condition...

  • Page 31: General Specifications

    4.3 General Specifications Safety Standards Complies with CSA C222 No. 1010.1 and EN61010-1, conforms to JIS C1010-1 Standard Operating Conditions Ambient Temperature: 23±5°C Ambient Humidity: 50±10% RH After the warm-up time has passed. Warm-up Time At least 1 hour Operating Condition Same as those of the measuring station Storage Condition Temperature:...

  • Page 32: Specifications For The 30-Ch Scanner Box

    Between voltage input terminals and case: 60 Hz 1500 VACrms for one minute Insulation Resistance Between input terminal and ground: 10 M (500 VDC) or more Modules that can be Connected 707231 (WE7231 30-CH Fast Digital Thermometer Module) Weight Approx. 1.3 kg External Dimensions Approx.

  • Page 32: Specifications For The 30-Ch Scanner Box

    Between voltage input terminals and case: 60 Hz 1500 VACrms for one minute Insulation Resistance Between input terminal and ground: 10 MΩ (500 VDC) or more Modules that can be Connected 707231 (WE7231 30-CH Fast Digital Thermometer Module) Weight Approx. 1.3 kg External Dimensions Approx.

  • Page 33: External Dimensions

    4.5 External Dimensions Units: mm WE7231 30-CH Fast Digital Thermometer Module START 30-CH,FAST 30-CH Scanner Box (Model 707815) Main Unit Connecting cable 707815: 1 m 707815/L3: 3 m If not specified, the tolerance is 3%. However, if less than 10 mm, the tolerance is 0.3...

  • Page 33: External Dimensions

    4.5 External Dimensions Units: mm WE7231 30-CH Fast Digital Thermometer Module START 30-CH,FAST 30-CH Scanner Box (Model 707815) Main Unit Connecting cable 707815: 1 m 707815/L3: 3 m If not specified, the tolerance is ±3%. However, if less than 10 mm, the tolerance is ±0.3...

  • Page 34: Index

    Index Index Symbols *.csv ................. 1-10 Measurement Function ............1-5 *.wvf ................. 1-10 Model ..................2 2 wire system ..............2-4 Moving Average ..............1-6 30-CH Scanner Box ............2-3 4 wire system ............. 2-4, 2-4 NO..................2 NULL .................. 1-5 AND ...................

  • Page 34: Index

    Index Index Symbols *.csv ................. 1-10 Measurement Function ............1-5 *.wvf ................. 1-10 Model ..................2 2 wire system ..............2-4 Moving Average ..............1-6 30-CH Scanner Box ............2-3 4 wire system ............. 2-4, 2-4 NO..................2 NULL .................. 1-5 AND ...................

This manual is also suitable for:

We7000

Table of Contents