Yokogawa DR240 User Manual

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Instruction

DR130/DR231/DR241

Manual

Hybrid Recorder (Stand-alone model)

IM DR231-01E

9th Edition

Foreword

Notes

Thank you for purchasing the YOKOGAWA Hybrid Recorder DR130, DR231 or DR241. This User's Manual contains useful information regarding the instrument's functions and operating procedures, as well as precautions that should be observed during use. To ensure proper use of the instrument, please read this manual thoroughly before operating the instrument. Keep the manual in a safe place for quick reference whenever a question arises. The following manual is provided with the instrument in addition to this manual if communication is specified.

Manual Name Manual No.

DR130/DR231/DR232/DR241/DR242 Communication Interface IMDR231-11E

• DARWIN is a system comprising a number of data-acquisition equipment components. In the course of system growth, new models, software and optional features are added to the family to enhance the systems expandability and flexibility. You can check the versions of your equipment and software by referring to the style number (Sn) and release number (Rn) respectively which are shown on the nameplate of the main unit. When configuring a system, you must confirm that the style number of each component unit and software meets the following requirement: the release number of a dedicated software package must be the same or higher than the style number of the main unit or subunit where the package is installed and where it performs control. Any equipment/software not meeting these requirements might have incompatible areas with your system configuration.

In this manual, equipment of style S8 is explained.

For unsupported functions as classified by the style number, see the next page.

• The contents of this manual are subject to change without prior notice as a result of improvements in the instrument's performance and functions.

• Every effort has been made in the preparation of this manual to ensure the accuracy of its contents. However, should you have any questions or find any errors, please contact your nearest YOKOGAWA representative as listed on the back cover of this manual.

• Copying or reproduction of all or any part of the contents of this manual without YOKOGAWA's permission is strictly prohibited.

Trademarks

MS-DOS and Windows are registered trademarks of Microsoft Corporation. IBM is a registered trademark of International Business Machines Corporation.

Revisions

1st Edition: January 1996 2nd Edition: March 1996 3rd Edition: June 1996 4th Edition: September 1996 5th Edition: March 1997 6th Edition: September 1997 7th Edition: November 1998 8th Edition: June 2000 9th Edition: October 2000

IM DR231-01E

Unsupported Functions As Classified by the Style Number

The following functions are not available for style number S1

• Computation function (including remote RJC)

• Saving and reading of measured data, computated data and set-up data (FDD function)

• Summer/Winter time

• RS-422-A/RS-485 communication module

• Report function

• Ethernet module

• Measurement of active power and apparent power on ch3 to ch6 for power monitor modules

• Flag (for /M1 option)

• Group reset (for /M1 option) The following functions are not available for style number S2

• Summer/Winter time

• RS-422-A/RS-485 communication module

• Report function

• Ethernet module

• Measurement of active power and apparent power on ch3 to ch6 for power monitor modules

• Flag (for /M1 option)

• Group reset (for /M1 option) The following functions are not available for style number S3

• Report function

• Ethernet module

• Measurement of active power and apparent power on ch3 to ch6 for power monitor modules

• Flag (for /M1 option)

• Group reset (for /M1 option) The following functions are not available for style number S4

• Report function

• Ethernet module

• Measurement of active power and apparent power on ch3 to ch6 for power monitor modules

• Flag (for /M1 option)

• Group reset (for /M1 option) The following functions are not available for style number S5

• Ethernet module

• Measurement of active power and apparent power on ch3 to ch6 for power monitor modules

• Flag (for /M1 option)

• Group reset (for /M1 option) Products with style number S5 and S6 are not sold.

IM DR231-01E

Checking the Contents of the Package

Unpack the box and check the contents before operating the instrument. In case the wrong instrument or accessories have been delivered, or if some accessories are not present, or if they seem abnormal, contact the dealer from which you purchased them. Futhermore, please contact a Yokogawa representative to order any of parts as follows.

Main Unit DR130/DR231/DR241

Check that the model and suffix code given on the name plate are according to your order.

Model and Suffix Codes

Model Suffix Code Description

DR130 ....................... Hybrid recorder, portable model

DR231 ....................... Hybrid recorder, desktop model

DR241 ....................... Hybrid recorder, panel-mounted model

Memory -0 .................... No memory

-1 .................... 3.5inch floppy disk drive

Software 0 ................. Without data acquisition software

Input Channel -1 .............. 10ch

Input Type 1 ............ Universal input, screw terminal

Power Supply -1 ......... 100-240VAC

Power Cord D ......... 3-pin inlet w/UL, CSA cable* (Part No. A1006WD)

Options /M1 .. Mathematical Func.

2 ................. With data acquisition software

-2 .............. 20ch

-3 .............. 30ch (for DR231/DR241 only)

2 ............ Universal input, clamp terminal

3 ............ DCV/TC/DI input, screw terminal

4 ............ DCV/TC/DI input, clamp terminal

-2 ......... 12-28VDC (for DR241 only)

F ......... 3-pin inlet w/VDE cable* (Part No. A1009WD)

R ......... 3-pin inlet w/SAA cable* (Part No. A1024WD)

S ......... 3-pin inlet w/BS cable* (Part No. A1023WD)

W ........ 3-pin inlet with screw conversion terminal**

Y ......... 3-pin inlet with screw conversion terminal**

* For DR130/DR231 only ** For DR241 only

/M3 .. Report Func. /C1 ... GP-IB interface /C2 ... RS-232-C interface (/C1, /C2, /C3, and /C7 cannot be specified together) /C3 ... RS-422-A/RS-485 interface (/C1, /C2, /C3, and /C7 cannot be specified

together) /C7 ... Ethernet interface (/C1, /C2, /C3, and /C7 cannot be specified together) /A4 ... Alarm module (10 make contacts) /R1 ... DI/DO interface /H1 ... Internal illumination (for DR231/DR241 only) /H5 ... Carrying handle (for DR231 only) /D2 ... deg F Display /L1 ... Summer/winter time /N7 ... Power Monitor module (single phase use) /N8 ... Power Monitor module (three phase use) /P6 ... DC Power supply (for DR130/DR231 only)

IM DR231-01E

NO. (Instrument Number), Style number (equipment) and Release number (software package)

Please refer to these numbers when contacting the dealer.

Checking the Contents of the Package

Modules

Check that the model code given on the name plate is according to your order. Note that the input modules at the DR130/DR231/DR241 are fixed and cannot be moved.

Model Codes

Description

10-channel universal input module, screw terminal 20-channel universal input module, screw terminal 30-channel universal input module, screw terminal

10-channel universal input module, clamp terminal 20-channel universal input module, clamp terminal 30-channel universal input module, clamp terminal

10-channel DCV/TC/DI input module, screw terminal 20-channel DCV/TC/DI input module, screw terminal 30-channel DCV/TC/DI input module, screw terminal

10-channel DCV/TC/DI input module, clamp terminal 20-channel DCV/TC/DI input module, clamp terminal 30-channel DCV/TC/DI input module, clamp terminal

Power monitor module, single-phase use Power monitor module, three-phase use

Optional Modules

Check that the model code given on the name plate is according to your order. Note that the modules at the rear of the main unit are fixed and cannot be moved.

Model Codes

Description

DI/DO module, screw terminal Alarm module (10 make contacts), screw terminal GP-IB module

RS-232-C module, D-sub terminal RS-422-A/RS-485 module

IM DR231-01E

Standard Accessories

Checking the Contents of the Package

Name Part No. Q'ty Presence/Absence Description

DR130 DR231 DR241

1.Power cord see page 3 1 ✓✓

2.Fuse A1350EF 1 ✓✓ Timelag 2.5A 250V, in case of DR130/231 located in fuse holder, when power supply is

-1

A1354EF 1 Timelag 6.3A

250V, when power supply is

-2 or option /P6 is specified

3.DC power terminal A1105JC 1 (only when /P6 is

connector specified)

4.Ribbon cassette B9627AZ 1 ✓✓✓10 colors

5.Chart paper B9627AY 1 ✓✓ Recording width 250 mm, length 30 m, grid 25 mm

B9855AY 1 ✓ Recording width

150 mm, length 20 m, grid 10 mm

6.Mounting brackets B9900CW 1 × 2 ✓

7.User's Manual IMDR231-01E 1 ✓✓✓ this manual

IMDR231-11E 1 Communication

Interface manual (only when /C1, /C2, /C3, or /C7 are specified)

IMDP12013-61E Data conversion

software manual (comes with models with whose software code is “2”)

8.Data acquisition software DP120-13 1 Software

DAQ 32 compatible with

Windows 95/98 and Windows NT (comes with models whose software code is “2”)

: Provided depending on the specifications.

1.One of these power cord types is supplied according to the instrument's suffix code

IM DR231-01E

2. 3. 4. 5. 6.

Checking the Contents of the Package

Optional Accessories

Name Model Description

Shunt resistance DV300-011 10Ω, for screw Shunt resistance DV300-012 10Ω, for clamp Shunt resistance DV300-101 100Ω, for screw Shunt resistance DV300-102 100Ω, for clamp Shunt resistance DV300-251 250Ω, for screw Shunt resistance DV300-252 250Ω, for clamp

Rack mount kit DV400-013 for DR231 Rack mount kit DV400-015 for DR130

Optional Software

Name Model Description

DAQ 32 DP120-13 Windows 95/98 and Windows NT DAQ 32 Plus DP320-13 Windows 95/98 and Windows NT

Spares

Name Model Min. Q’ty Description

Ribbon cassette B9627AZ 1 10 colors Chart paper B9627RY 10 Recording width 250mm length 30 m, grid 10mm (for

B9627AY 10 Recording width 250mm length 30 m, grid 25mm (for

DR231/DR241)

B9855AY 10 Recording width 150mm length 20 m, grid 10mm (for

DR130)

IM DR231-01E

Safety Precautions

This instrument is an IEC safety class I instrument (provided with terminal for protective grounding). The following general safety precautions must be observed during all phases of operation, service and repair of this instrument. If this instrument is used in a manner not sepecified in this manual, the protection provided by this instrument may be impaired. Also, YOKOGAWA Electric Corporation assumes no liability for the customer’s failure to comply with these requirements.

The following symbols are used on this instrument.

To avoid injury, death of personnel or damage to the instrument, the operator must refer to an explanation in the User’s Manual or Service Manual.

Protective grounding terminal.

Make sure to comply with the following safety precautions. Noncompliance might result in injury, death of personnel or damage to the instrument.

Function grounding terminal. This terminal should not be used as a “Protective grounding terminal”.

Alternating current.

ON(power).

OFF(power).

WARNING

Power Supply

Ensure the source voltage matches the voltage of the power supply before turning ON the power.

Power Cord and Plug

To prevent an electric shock or fire, be sure to use the power cord supplied by YOKOGAWA. The main power plug must be plugged in an outlet with protective grounding terminal. Do not invalidate protection by using an extension cord without protective grounding.

Protective Grounding

Make sure to connect the protective grounding to prevent an electric shock before turning ON the power.

Necessity of Protective Grounding

Never cut off the internal or external protective grounding wire or disconnect the wiring of protective grounding terminal. Doing so poses a potential shock hazard.

Defect of Protective Grounding and Fuse

Do not operate the instrument when protective grounding or fuse might be defective.

Do not Operate in an Explosive Atmosphere

Do not operate the instrument in the presence of flammable liquids or vapors. Operation of any electrical instrument in such an environment constitutes a safety hazard.

Fuse

To prevent a fire, make sure to use fuses with specified standard(current, voltage, type). Before replacing the fuse, turn OFF the power and disconnect the power source. Do not use a different fuse or short-circuit the fuse holder.

Do not Remove any Covers

There are some areas with high voltages. Do not remove any cover if the power supply is connected. The cover should be removed by qualified personnel only.

External Connection

To ground securely, connect the protective grounding before connecting to measurement or control unit.

IM DR231-01E

How to Use this Manual

This User's Manual consists of the following fourteen chapters.

Chapter Title Description Chapter 1 System Configuration Explains the position of the DR within DARWIN, its

Chapter 2 Functions Explains the functions of the DR. Operating

Chapter 3 Installation and Wiring Describes cautions for use, explains how to install and

Chapter 4 Setting the Monitor Mode Explains the display in the monitor mode.

Display

Chapter 5 Setting the Input Type/ Explains the operations when setting the input type,

Recording Span/ recording span and linear scaling function. Linear Scaling

Chapter 6 Setting the Recording Explains the operations when setting recording

Conditions conditions such as the recording mode, channels,

Chapter 7 Executing Recording Explains how to start and stop recording. Chapter 8 Setting, Displaying and Explains how to set an alarm and what to do when an

Recording Alarms alarm occurs.

Chapter 9 Event/Action Function and Explains how to operate the event/action function,.

Other Functions how to copy recording information, how to reset

Chapter 10 Basic Settings (SET UP) Explains functions which usually do not need to be

Chapter 11 Saving/Reading Measured, Explains how to save measured data, computed data

Computed and Set-up Data and set-up data to the internal RAM disk or floppy

disk and read them into the instrument.

Chapter 12 Executing Computation Explains the computation function (optional).

(Available with the /M1 Model)

Chapter 13 Trouble-Shooting and Explains maintenance procedures, error messages and

Maintenance calibration procedures. Chapter 14 Specifications Explains specifications for all features of DR. Index Gives the index in main menu and alphabetic order.

configuration, etc..

procedures are not explained here.

wire the DR, the power cord, how to switch ON/OFF the DR, how to set the date/time, explains the noise filter, etc..

recording interval, chart speed, recording span, and

recording format.

alarms, how to reset the timer, how to use the keylock, and how to use the external in-/output function.

changed, and how to set these.

IM DR231-01E

Conventions Used in this Manual

Explanation

Used Symbols

The following symbol marks are used to attract the operator's attention.

Affixed to the DR130/231/241, indicating that for safety, the operator should refer to the appropriate User's Manual. For a list of the User's Manuals, refer to page 1.

Describes precautions that should be observed to prevent the danger of injury or death to the user.

Describes precautions that should be observed to prevent damage to the DR130/231/241.

Note

Relevant Keys

Operating Procedure

Explanation

Provides information that is important for proper operation of the DR130/ 231/241.

Indicates the relevant panel keys and indicators to carry out the operation.

The procedure is explained by a flow diagram. For the meaning of each operation, refer to the example below. The operating procedures are given with the assumption that you are not familiar with the operation. Thus, it may not be necessary to carry out all the steps when changing settings.

Describes settings and restrictions relating to the operation.

IM DR231-01E

Foreword.................................................................................................................................................................................. 1

Checking the Contents of the Package ..................................................................................................................... 3

Safety Precautions .............................................................................................................................................................. 7

How to Use this Manual .................................................................................................................................................... 8

Conventions Used in this Manual ................................................................................................................................9

List of Menus and Set-up Data .................................................................................................................................... 14

Chapter 1 System Configuration

1.1 About DARWIN ...................................................................................................................................1-1

1.2 Names of Parts ......................................................................................................................................1-2

1.3 Floppy Disk .......................................................................................................................................... 1-5

Chapter 2 Functions

2.1 Display Functions .................................................................................................................................2-1

2.2 Measurement Input Functions .............................................................................................................. 2-3

2.3 Recording Functions ............................................................................................................................. 2-5

2.4 Alarm Function ................................................................................................................................... 2-14

2.5 Standard Computation Functions ....................................................................................................... 2-17

2.6 Other Functions .................................................................................................................................. 2-18

Chapter 3 Installation and Wiring

3.1 General Precautions for Installation ..................................................................................................... 3-1

3.2 How to Install ....................................................................................................................................... 3-2

3.3 Installing the Chart and Ribbon Cassette ............................................................................................. 3-6

3.4 Connecting the Interface Cables .........................................................................................................3-11

3.5 Connecting the Signal Lines ...............................................................................................................3-16

3.6 Connecting the Power Cable and Turning the Power ON/OFF.......................................................... 3-21

3.7 Setting the Date and Time .................................................................................................................. 3-25

3.8 Countering Noise ................................................................................................................................3-26

Chapter 4 Setting the Monitor Mode Display

4.1 Using the AUTO Mode .........................................................................................................................4-1

4.2 Using the MANUAL Display ...............................................................................................................4-4

4.3 Using the PAGE Display ...................................................................................................................... 4-6

4.4 Using the ALARM SEARCH Display .................................................................................................4-7

4.5 Using the BARGRAPH Display...........................................................................................................4-9

4.6 Using the ALARM STATUS Display .................................................................................................4-10

4.7 Using the RELAY STATUS Display .................................................................................................. 4-11

4.8 Using the CLOCK (Date & Time) Display ........................................................................................4-13

Chapter 5 Setting the Input Type/Recording Span/Linear Scalling

5.1 Setting the Type of Input and Recording Span .....................................................................................5-1

5.2 Setting Linear Scaling and the Recording Span ................................................................................... 5-4

5.3 Configuring the Input Range and Recording Span or the Linear Scaling of a Power Monitoring

Channel .................................................................................................................................................5-6

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Index

Contents

Chapter 6 Setting the Recording Conditions

6.1 Setting the Recording Mode/Engineering Unit/Recording Channel and Recording Interval .............. 6-1

6.2 Setting the Chart Speed ........................................................................................................................ 6-4

6.3 Setting Recording Zones and Partially Expanded Recording .............................................................. 6-6

6.4 Setting Tag, Digital Printout and Manual Printout ...............................................................................6-8

6.5 Setting the Alarm Printout .................................................................................................................. 6-10

6.6 Setting Scale Printout, List Printout and List Format.........................................................................6-12

6.7 Entering Messages, Headers and Title................................................................................................6-14

6.8 Setting Match Time, Moving Average, Interpolation and Groups ......................................................6-16

Chapter 7 Executing Recording

7.1 Starting Dot Printing, Digital Printing and Printing in Logging Mode ................................................7-1

7.2 Starting Manual Printing, List Printing and Header Printing ............................................................... 7-2

7.3 Starting Message Printing .....................................................................................................................7-3

7.4 Printing Set-up Lists .............................................................................................................................7-4

Chapter 8 Setting Displaying and Recording Alarms

8.1 Setting Alarms and Relays (including internal switches) .....................................................................8-1

8.2 Alarm Display and Printing ..................................................................................................................8-4

Chapter 9 Event/Action Function and Other Functions

9.1 Setting Event/Action Functions ............................................................................................................ 9-1

9.2 Copying .............................................................................................................................................. 9-12

9.3 Alarm Acknowledgment, Alarm Reset, Timer Reset, Computation, Keylock, and Message Printout 9-14

9.4 Clearing Alarm/Message Buffers, and Displaying and Initializing Module/Communications

Information ......................................................................................................................................... 9-16

9.5 Fail/Chart End Output, and Remote Control Signal Input ................................................................. 9-18

9.6 Summer/Winter Time ......................................................................................................................... 9-19

Chapter 10 Basic Settings (SET-UP)

10.1 Selecting Adjustment of Dot-Printing Position or Scan Interval ........................................................10-1

10.2 Setting Recording Format................................................................................................................... 10-3

10.3 Select Alarm Interval/Hysteresis/Hold/A/D Converter Integration Time/Filter.................................10-7

10.4 Setting Operation Mode of Relay/Internal Switch .............................................................................10-9

10.5 Setting Burn-out/Reference Junction Compensation ....................................................................... 10-12

10.6 Setting Recording Colors.................................................................................................................. 10-14

10.7 Setting Key Lock ................................................................................................................................ 10-15

10.8 Setting FUNC/FUNC3 Menu ........................................................................................................... 10-17

10.9 Setting SET/SET3 Menu ..................................................................................................................10-20

10.10 Selecting Display Update Interval, Registering SET UP Menu, and Terminating SET UP Menu..10-24

10.11 Selecting the temperature unit from °C or °F (option)......................................................................10-25

10.12 Working with the Report Function ....................................................................................................10-27

Chapter 11 Saving/Reading Measured, Computed and Set-up Data

11.1 Saving Measured and Computed Data .................................................................................................. 11-1

11.2 Reading Measured and Computed Data................................................................................................. 11-7

11.3 Saving Set-up Data............................................................................................................................... 11-11

11.4 Reading Set-up Data ............................................................................................................................ 11-13

11.5 Copying a Data File ............................................................................................................................. 11-16

11.6 Copying in ASCII Format .................................................................................................................... 11-18

11.7 Deleting a Data File ............................................................................................................................. 11-21

11.8 Displaying RAM Disk and Floppy Disk Information.......................................................................... 11-22

11.9 Initializing the RAM Disk....................................................................................................................11-24

11.10 Formatting a Floppy Disk .................................................................................................................. 11-25

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Chapter 12 Executing Compuration (Available with the /M1 Model)

12.1 Overview of the Computation Function .............................................................................................12-1

12.2 Setting a Computation Equation.........................................................................................................12-4

12.3 Setting a Constant ...............................................................................................................................12-7

12.4 Starting/Stopping Computation .......................................................................................................... 12-8

12.5 Setting Actions to be Carried out in Case of Computation Error and Setting the Time Axis for TLOG

SUM..................................................................................................................................................12-12

Chapter 13 Trouble-shooting and Maintenance

13.1 Periodic Maintenance and Recommended Parts Replacement Period ...............................................13-1

13.2 Replacing the Fuse ................................................................................................................................13-2

13.3 Troubleshooting .................................................................................................................................. 13-4

13.4 Error Codes.........................................................................................................................................13-5

13.5 Calibration ..........................................................................................................................................13-7

Chapter 14 Specifications

14.1 Specifications of DR130/DR231/DR241 (Style S8) ..........................................................................14-1

14.2 Specifications of Optional Functions ............................................................................................... 14-16

14.3 Dimensional Drawings .....................................................................................................................14-20

INDEX

Contents

IM DR231-01E

Index

List of Menus and Set-up Data

The following is a list of set-up data, procedures to switch to different setting modes, and setting menu.

Measurement Condition Settings

Parameters Procedure Selecting menu Reference

Input type, span, linear RANGE key 001-01:VOLT/2V Chapter 5

Chart Speed Settings

Recording Settings

scaling* Units SET key* Moving average Measurement cycle*1Turn ON power while pressing the DISP key

A/D integration time*1Turn ON power while pressing the DISP key

Filter* *1: Make sure that the total number of setting changes, including calibrations, does not surpass 100000.

*2: Procedure varies according to the menu configuration of the SET key (see section 10.9).

Parameters Procedure Selecting menu Reference

Chart speed 1 CHART key CHART Section 6.2 Chart speed 2

*: Procedure varies according to the menu configuration of the SET key (see section 10.9).

Parameters Procedure Selecting menu Reference

Logging/Analog trend SET key* SET=SYSTEM Section 6.1 switch, dot-printing cycle Recording channel SET key* SET=TREND Section 6.1 Recording zone Partial compression Tag Channel to digital print, number of rows to print Channel to manual print Alarm print Channel to print scale values Channel to list print Items to list print Message Header Title Interpolation Adjust dot-printing position Recording format Dot-print color

*: Procedure varies according to the menu configuration of the SET key (see section 10.9).

Press the SET key for about three seconds

Turn ON power while pressing the DISP key

Press the SET key for about three seconds*

Press the SET key for about three seconds* Press the SET key for about three seconds* Press the SET key for about three seconds* Press the SET key for about three seconds*

Press the SET key for about three seconds* Press the SET key for about three seconds* Press the SET key for about three seconds*

Press the SET key for about three seconds* Press the SET key for about three seconds* Press the SET key for about three seconds* Press the SET key for about three seconds* Press the SET key for about three seconds* Press the SET key for about three seconds* Turn ON power while pressing the DISP key

Turn ON power while pressing the DISP key Turn ON power while pressing the DISP key

SET=UNIT Section 6.1

*2SET=MOVE AVE Section 6.8

SET UP= Section 10.1 SCAN INTVL SET UP=A/D INTG Section 10.3 SET UP=FILTER Section 10.3

SET=CHART2 Section 6.2

SET=ZONE Section 6.3 SET=PERTIAL Section 6.3 SET=TAG Section 6.4 SET=DIGITAL PR Section 6.4

SET=MANUAL PR Section 6.4 SET=ALARM PR Section 6.5 SET=SCALE PR Section 6.6

SET=LIST PR Section 6.6 SET=LIST FMT Section 6.6 SET=MESSAGE Section 6.7 SET=HEADER Section 6.7 SET=TITLE Section 6.7 SET=INTERPOL Section 6.8 SET UP=PRN ADJ Section 10.1

SET UP=RECORD Section 10.2 SET UP=COLOR Section 10.6

Display Settings

Alarm Settings

Parameters Procedure Selecting menu Reference

Switch display DISP key and MODE key -------- Chapter 4 Display update interval Turn ON power while pressing the SET UP=DISPLAY Section 10.10

Parameters Procedure Selecting menu Reference

Alarm, alarm output ALARM key 001-01:1/OFF Section 8.1 relay Alarm interval/hysteresis/hold Execute alarm FUNC key* ALARM ACK Section 9.3 acknowledge Reset alarm FUNC key* ALARM RST Section 9.3 Clear alarm buffer

*: Procedure varies according to the menu configuration of the FUNC key (see section 10.8).

DISP key

Turn ON power while pressing the DISP key

Press the FUNC key for about three seconds*

SET UP=ALARM Section 10.3

ALM BUF CLEAR Section 9.4

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Computation Settings

Parameters Procedure Selecting menu Reference

Computation equation SET key* SET=MATH Section 12.2 Constant SET key* SET=CONST Section 12.3 Perform computation FUNC key** MATH START Section 12.4 Clear measured data and FUNC key** MATH CLR START Section 12.4 perform computation Stop computation FUNC key** MATH STOP Section 12.4 Clear incomplete FUNC key** MATH ACK Section 12.4 measurement status Handling of computation error/time axis setting of TLOG SUM

*: Procedure varies according to the menu configuration of the SET key (see section 10.9). **: Procedure varies according to the menu configuration of the FUNC key (see section 10.8).

Turn ON power while pressing the DISP key

Settings for Saving/Loading Measured/Setup Data (Floppy Disk)

Parameters Procedure Selecting menu Reference

Save/Load measured dataSET key* SET=MEMORY Save/Load set-up data SET key* SET=FLOPPY of SET mode Copy measured data SET key* SET=MEMORY Section 11.5 between built-in RAM disk and floppy disk Convert data and copy SET key* SET=MEMORY Section 11.6 Initialize built-in RAM SET key* SET=MEMORY Section 11.9 disk Initialize floppy disk SET key* SET=MEMORY Section 11.10 Save/Load set-up data Turn ON power while pressing the DISP SET UP=FLOPPY of SET UP mode key

*: Procedure varies according to the menu configuration of the SET key (see section 10.9).

Perform Printing

Parameters Procedure Selecting menu Reference

Perform manual print PRINT key MAN PR START Section 7.2 Perform list print PRINT key LIST START Section 7.2 Perform header print PRINT key HEADER START Section 7.2 Perform message print FUNC key* MSG PRINT Section 7.3 Perform setup list print

*: Procedure varies according to the menu configuration of the FUNC key (see section 10.8).

Press the FUNC key for about three seconds*

Other Settings

Parameters Procedure Selecting menu Reference

Timer SET key* SET=TIMER Section 6.1 Event/Action SET key* SET=LOGIC Section 9.1 Copy between channels SET key* SET=COPY Section 9.2 Match time Group Relay, internal switch operation mode Burnout Reference junction compensation Key lock Menu configuration of FUNC key FUNC PARM Menu configuration of SET key Report function Reset timer FUNC key** TIMER RESET Section 9.3 Lock keys FUNC key** KEY LOCK ON Section 9.3 Start report FUNC key** REPORT START Section 10.12 Stop report FUNC key** REPORT STOP Section 10.12 Start report print FUNC key** REPORT RECALL Section 10.12

Stop report print FUNC key** REPORT PRINT Section 10.12

Clear message buffer Display module settings Display communication settings Initialize setting information

*: Procedure varies according to the menu configuration of the SET key (see section 10.9). **: Procedure varies according to the menu configuration of the FUNC key (see section 10.8).

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Press the SET key for about three seconds* Press the SET key for about three seconds* Turn ON power while pressing the DISP key

Turn ON power while pressing the DISP key Turn ON power while pressing the DISP key

Turn ON power while pressing the DISP key

Press the FUNC key for about three seconds** Press the FUNC key for about three seconds** Press the FUNC key for about three seconds**

Press the FUNC key for about three seconds**

List of Menus and Set-up Data

SET UP=MATH Section 12.5

Section 11.1, 11.2 Section 11.3, 11.4

Section 11.3, 11.4

S/U LIST START Section 7.4

SET=MATCH TIME Section 6.8 SET=GROUP Section 6.8 SET UP=RELAY Section 10.4

SET UP=BURN OUTSection 10.5 SET UP=RJC Section 10.5

SET UP=LOCK Section 10.7 SET UP= Section 10.8

SET UP=SET PARM Section 10.9

SET UP=REPORT Section 10.12

START

START MSG BUF CLEAR Section 9.4 MODULE INF Section 9.4 COMM INF Section 9.4

RAM INIT Section 9.4

1.1 About DARWIN

What is DARWIN?

Created from a completely new concept that is based on modular architecture, this group of next generation data acquisition systems is called DARWIN (Data Acquistion and Recording Windows). Today many data acquisition networks are increasingly being linked together. More than ever before, large volume, high speed, accurate, easy-to-use communication functions are essential in many disciplines. In the world of measurement and control where the number of measurement points has increased sharply, the ability to acquire information from a large number of points easily and economically is crucial. Interfacing to a personal computer allows simplified utilization of the information while improving quality and efficiency. DARWIN is based on a unique, new concept to meet these needs. The art of measurement is revolutionized by DARWIN which integrates functions of conventional recording and data logging. Most existing data acquisition equipment has been the all-in-one type in which the measurement section and display/recording section are contained in one box. While this simplifies operation on the one hand, it is difficult to adapt to changes in the measurement environment and also makes expansion difficult. DARWIN uses a data acquisition engine and remote I/O modules which are completely separate from each other. It is an entirely new product line which quickly and flexibly copes with various restrictive conditions and changes in specifications. Supported by a personal computer, a whole line-up can be created starting with the data acquisition systems DA series which performs data logging. For example, using a printer as the output device, the equipment becomes a hybrid recorder (DR series). Three models are available in the DR series: the DR130, DR230 and DR240. The DR130 is a portable hybrid recorder, the DR230 is a desk-top hybrid recorder, and the DR240 is a panelmount hybrid recorder (component type).

System Configuration

DA100

Subunit

Input/output modules

Personal computer

Extension cables (max. length 500 m)

CH=001 RANGE=TC TYPE-T

H y

b r

i d

R e

c o

r d

e r

1 0

6 0

3 0

7 0

4 0

8 0

9 0

DR240DR230DR130

IM DR231-01E

1-1

1.2 Names of Parts

DR130 Portable hybrid recorder

Front

Main display (See chapter 4.)

Sub-display 1 (See chapter 4.)

Power switch (See page 3-18.)

Rear (Example of DR130 with 20 input channels) AC power supply model

Sub-display 2 (See chapter 4.)

Status indicator

Operation panel (See chapters 3 to 12.)

Handle to open/close the front door

Front door

Floppy disk drive (Only for DR130-1)

Heat sink fins

Terminals

DC power supply model

DC Power fuse (

DC Power connector (

See page 13-3.)

See page 3-23.)

Power connector ( See page 3-21.) Power fuse ( See page 13-2.)

Function grounding terminal

AC Power connector ( AC Power fuze ( AC Power switch ( Function grounding terminal

See page 3-21.)

See page 13-2.)

See page 3-24.)

1-2

Terminals

IM DR231-01E

DR231 Desk-top hybrid recorder

Front

Main display (See chapter 4.)

Sub-display 1 (See chapter 4.)

Sub-display 2 (See chapter 4.)

Status indicator

1.2 Names of Parts

System Configuration

Operation panel (See chapters 3 to 12.)

Handle to open/close the front door

Front door

Power switch (See page 3-18.)

Floppy disk drive (Only for DR231-1)

Rear (Example of DR231 with 30 input channels) AC power supply model

Heat sink fins

Terminals

Power fuse ( See page 13-2.)

DC power supply model

DC Power fuse (

DC Power connector (

See page 13-3.)

See page 3-23.)

Power connector ( See page 3-21.) Function grounding terminal

AC Power connector ( AC Power fuze (

AC Power switch ( Function grounding terminal

See page 3-21.)

See page 13-2.)

See page 3-24.)

IM DR231-01E

Terminals

1-3

1.2 Names of Parts

DR241 Panel-mount hybrid recorder (component type)

Front

Main display (See chapter 4.)

Sub-display 1 (See chapter 4.)

Sub-display 2 (See chapter 4.)

Status indicator

Operation panel (Located behind the front door. See chapters 3 to 12.)

Handle to open/close the front door

Front door

Power switch (Located inside the front door. See page 3-18.)

Floppy disk drive (Only for DR241-1)

Rear (Example of DR241 with 30 input channels)

Heat sink fins

Terminals

Power fuse

(Located inside the instrument. See page 13-2.)

Power terminal with a cover ( See page 3-22.)

Function grounding terminal

1-4

IM DR231-01E

DR231 Desk-top hybrid recorder

Front

Main display (See chapter 4.)

Sub-display 1 (See chapter 4.)

Sub-display 2 (See chapter 4.)

Status indicator

1.2 Names of Parts

System Configuration

Operation panel (See chapters 3 to 12.)

Handle to open/close the front door

Front door

Power switch (See page 3-18.)

Floppy disk drive (Only for DR231-1)

Rear (Example of DR231 with 30 input channels) AC power supply model

Heat sink fins

Terminals

Power fuse ( See page 13-2.)

DC power supply model

DC Power fuse (

DC Power connector (

See page 13-3.)

See page 3-23.)

Power connector ( See page 3-21.) Function grounding terminal

AC Power connector ( AC Power fuze ( AC Power switch ( Function grounding terminal

See page 3-21.)

See page 13-2.)

See page 3-24.)

IM DR231-01E

Terminals

1-3

2.1 Display Functions

The inter-active front panel display consists of three rows. The first row is the main display, and the second and third row are sub-display 1 and 2 respectively.

Monitor Mode and Status Display

Monitor Mode

• Auto Mode

This mode can be set for the main display, sub-display 1 and sub-display 2. Measurement values of all channels will be consecutively displayed with update interval.

• Manual Mode

This mode can be set for the main display, sub-display 1 and sub-display 2. Measurement values of a single channel will be displayed. The display update interval is the same as the measurement interval (refer to page 2-4).

• Page Mode

This mode can be set for the main display. When choosing this display, the measurement values of 5 consecutive channels will be displayed as a page using also sub-display 1 and 2. The display update interval is the same as the measurement interval (refer to page 2-4).

• Alarm Search Mode

This mode can be set for the main display, sub-display 1 and sub-display 2. Channels at which an alarm occurred will be searched for and their measurement values displayed. The display update interval is 2 seconds.

• Bargraph Mode

This mode can be set for sub-display 1. Measurement values which are shown on the main display will be shown as a bargraph. The display update interval is the same as the interval of the main display.

• Alarm Status Mode

This mode can be set for sub-display 1 and 2. The display will show per channel whether or not an alarm occurred (refer to page 2-14). On one display the alarm status of a maximum of 30 channels can be monitored (depending on the number of input channels). The display update interval is 0.5 seconds.

• Relay Status Mode

This mode can be set for sub-display 1 and 2. The display will show the operating status of internal switches/alarm output relays (refer to page 2-14). On one display a maximum of 30 relay statuses can be monitored. The display update interval is 1 second.

• Clock Mode

This mode can only be set for sub-display 2. The current date and time are shown.

• Displaying the Selected Mode

To the right of sub-display 1 the currently selected mode is shown for a specific display.

Functions

IM DR231-01E

Status Display

Indicators at the right side of the display will light up to show that recording is in progress (refer to page 2-5), alarms are occuring (refer to page 2-14), keys are locked (refer to page 2-18) and chart needs to be replaced (refer to page 2-19).

Remote/Local Status Display

The status of remote/local control will be shown on sub-display 2. Keys cannot be operated in remote control.

2-1

2.1 Display Functions

Display for Setting the Type of Input, Computation and Recording Conditions

Menus for setting each of the following functions will be displayed.

• measurement input functions (refer to page 2-3)

• recording functions (refer to page 2-5)

• alarm functions (refer to page 2-14)

• computation functions (refer to page 2-17)

• event/action function, key-lock function and external in/output function (refer to page 2-18, 19)

Display for Setting Fundamental Functions

Menus for performing fundamental settings will be displayed.

2-2

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2.2 Measurement Input Functions

Input Type

DC Voltage

Measurements can be done after selecting the measurement range per channel. The minimum range is 20mV, the maximum range is 50V.

Thermocouple

Measurements can be done after selecting the type of thermocouple per channel. The available types are R, S, B, K, E, J, T, L, U, N, W and KPvsAU7FE. Reference Junction Compensation (RJC) can be set to either use Internal RJC (INT) or External RJC (EXT) per channel. Burnout function can be set OFF per channel or it can be selected in which direction the trend line will move if burnout occurs (right or left)

Resistance Temperature Detector

Measurements can be done after selecting the type of resistance temperature detector (RTD) per channel. The available 17 types are Pt100(1mA), Pt100(2mA), JPt100(1mA), JPt100(2mA), Pt50(2mA), Ni100(1mA)SAMA, Ni100(1mA)DIN, Ni120(1mA), J263*B, Cu10GE, Cu10L&N, Cu10WEED, Cu10BAILEY, Pt100 (1mA) high resolution, Pt100 (2mA) high resolution, JPt100 (1mA) high resolution and JPt100 (2mA) high resolution.

Contact Input

The type of contact input can be selected from voltage level input or contact input, and recording can be set ON or OFF per channel. In case of the voltage level input a voltage level up to 2.4V results in recording OFF, whereas a voltage level of 2.4V or more results in recording ON.

AC Voltage/Current

The effective voltage, effective current, active power, reactive power, apparent power, frequency, power factor and phase angle can be measured. The measuring range is common to all terminals. The input terminals of the module with this input mode are not consistent with a setup screen in terms of the channel number.

Functions

Skipping Input Channels

This function allows skipping measurement, recording and display of channels you are not using. Measurement, recording and display will not be done for the skipped channels.

Reference Junction Compensation (RJC)

This function is to be used when measuring temperatures using thermocouples. The voltage generated by a thermocouple depends on the temperature of the spot of measurement and the reference junction temprature. Reference junction compensation is a function which compensates the temperature at the side of the measurement instrument to 0 degrees C. To compensate for the environmental temperature an internal circuit can be selected, or compensation by a fixed compensation voltage value (external) can be set.

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2-3

2.2 Measurement Input Functions

Scan Interval

• The duration of time (one scan) in which the measurement of all channels is carried out, is called the scan interval.

• This interval can be set to any value from 2 to 60s, and this range is the same for the 10ch, 20ch and 30ch model.

A/D Integration Time

This instrument measures the input signal after putting it through an A/D converter. In order to minimize the noise imposed on the input signal, specific integration times exist. The integration time can be selected from 20ms (50Hz), 16.7ms (60Hz) and 100ms (10Hz). When “AUTO” is selected, the integration time will be automatically decided according to the 50/ 60Hz frequency of the power supply. AUTO does not function if the instrument is a DC power supply model (Selecting “AUTO” will set the A/D integration time to 20 ms (50 Hz)). If you are using the instrument on a 60-Hz power supply, set the A/D integration time to 16.7 ms (60Hz).

Input Filter

A filter can be set ON/OFF to reduce normal mode noise. Effects on normal mode noise are as follows depending on the filter being ON/OFF (theoretical values).

0dB

1Hz

Frequency

10Hz

50Hz

100Hz

300Hz

-20dB

-40dB

-60dB

Attenuation

-80dB

-100dB

Slope:-20dB/dec

Filter ON

Filter OFF

Slope:-60dB/dec

2-4

IM DR231-01E

2.3 Recording Functions

Chart Speed

The speed at which the chart moves when performing trend recording can be selected from any value between 1 to 1500mm/h. Two types of chart speeds can be set. When you are not using the Event/Action function, which will be described later on in this manual, chart speed 1 will be valid. When the Event/Action function is being used, you can select whether chart speed 1 will change to speed 2 according to the event status.

Recording Mode

Two types of recording modes are available; analog trend and logging mode. The default setting is analog trend mode.

Analog Trend Mode (refer to the next page for a recording example) Trend Recording (Dot recording)

The recording principle is that, according to measurement data and recording conditions, the correct position on the chart will be decided and on that position the dot will be printed. Trend recording conditions consist of the following.

• chart speed

• channels to be recorded

• recording color (refer to page 2-9)

• recording interval (refer to page 2-9)

• recording span (refer to page 2-10)

• recording zone (refer to page 2-10)

• partially expanded recording (refer to page 2-11)

• interpolation function (refer to page 2-11)

Digital Printout

Measurement data will be printed as numerical values. Digital printout conditions consist of the following.

• channels to be recorded

• recording interval (refer to page 2-9)

• the number of channels to be recorded on the same line (refer to page 2-8)

Functions

Logging Mode

In this mode measurement data are only printed as numerical values. Logging recording conditions consist of the following.

• channels to be recorded

• the recording direction (vertical or horizontal)

• recording interval (refer to page 2-9)

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2-5

2.3 Recording Functions

Recording Example

Channel No. or tag of

dot recording

The numbers in parentheses refer to reference pages.

Alarm release mark

Message

(Page 2-13)

Title

(Page 2-13)

Alarm release mark

(Page 2-13)

Chart speed

(Page 2-5)

Reference position of

dot recording start

(Page 2-8)

Right margin

Starting time

of dot

recording

(Page 2-8)

Ending time of

previous dot

recording

(Page 2-8)

Trend recording (Page 2-5)

Reference point of xcale

(Page 2-8)

Scale value

(Page 2-10)

Starting date/time

Manual Printout

of manual printout

(Page 2-13)

Channel No. or tag

of manual printout

Digital printout

(Page 2-5)

Chart speed

(Page 2-5)

Starting date/time

of Digital printout

Header

(Page 2-13)

Left margin

2-6

IM DR231-01E

Recording Example for DR231/DR241

The numbers in parentheses refer to reference pages.

2.3 Recording Functions

Trend recording (Page 2-5)

Reference point of scale

(Page 2-8)

Scaled value

(Page 2-10)

Alarm release mark

(Page 2-13)

Alarm occurrence mark

(Page 2-13)

Right margin

Reference position of

Chart speed

(Page 2-5)

Starting time

of dot

recording

(Page 2-8)

Ending time of

previous dot

recording

(Page 2-8)

dot recording start

(Page 2-8)

Functions

Channel No. or tag of

dot recording

Manual Printout

Starting date/time

(Page 2-13)

of manual printout

Channel No. or tag

of manual printout

Digital printout

(Page 2-5)

Message

(Page 2-13)

Titlle

(Page 2-13)

Chart speed

Header

(Page 2-13)

(Page 2-5)

Starting date/time

of Digital printout

Left margin

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2-7

2.3 Recording Functions

Recording Format

You can modify the recording format of measurement values according to your own preferences. The following selections are available.

Items common for Analog Trend and Logging mode Printing Channel No. or Tag

When printing measurement values, the corresponding channel number or a preset tag can be recorded with it. This selection will also affect the display the same way. The number of characters of a tag which will be printed out, can be selected too.

Items for Analog Trend Mode

• Printing Starting/Stopping Time of Recording

You can select whether to print the time of starting/stopping the recording (refer to page 2-10) on the right side of the chart. The first time recording starts after the power has been turned ON, only the starting time will be printed. After that, the current starting time will be printed together with the stopping time of the previous recording. To the right of the starting time a bar will be printed as a reference point to the time of starting.

• Selecting the Number of Columns for Digital Printouts

You can select how many columns (where one column equals data of one channel) will be used in one line for printing out measurement data.

• Selection of the Pitch of Channel Printouts

You can select at which distance the channel numbers (or tags) will be printed. You can also select this printout OFF. When tags have been selected, this distance applies to the tag printout.

• Selection of the Pitch of Title Printouts

You can select at which distances the title will be repeatedly printed. You can also select this printout OFF.

• Selection of the Scaled Values Printout

You can select the printing pattern for scaled values (refer to page 2-10). You can also select this printout OFF.

• Selection of the Reference Point of Scaled Values

You can select whether or not to print a reference point for the positions of the scaled values.

Items for Logging Mode

• Selection of the Recording Direction (Horizontal/Vertical)

You can select whether printouts will occur in horizontal or vertical direction,

Example of a printout in horizontal direction

Example of a printout in vertical direction

2-8

IM DR231-01E

Recording Colors

Recording Interval

2.3 Recording Functions

The color of trend recordings can be selected per channel. The colors which can be selected are black, purple, red-purple, navy blue, red, blue, brown, green, orange and yellowish green. The recording color of the numerical values in the logging mode is purple only.

The time during which one scan of trend recording or numerical printout is carried out is called the recording interval.

Recording interval for trend recording

This recording interval can be selected from AUTO or FIX.

• AUTO

The recording interval is decided automatically depending on the measurement (scan) interval and chart speed in order prevent the dots from overlapping. However, in cases where this calculation would render the recording interval smaller than the scan interval, the recording interval will equal the scan interval.

Recording interval = Scan interval × N

where N is an integer satisfying N

Example: when scan interval is 2s; chart speed is 100mm/h

then N

≤ 720 / (2 × 100) = 3.6

The closest matching integer is 3. Accordingly, the recording interval becomes 2 × 3 = 6s.

≤ 720 / (scan interval × chart speed). 720 is fixed.

Functions

• FIX

Recording is carried out at an interval which is the same as the scan interval (2 to 60s) regardless of the chart speed.

Recording interval for digital printouts

This recording interval can be selected from MULTIPLE or SINGLE

• MULTIPLE

Six preset recording intervals (Timer 1 to 6) can be set and a recording interval can be selected per channel. The timer setting can be selected from relative and absolute.

• Relative time: Time will be counted from the point of turning the power switch ON or of resetting the timer. Each time the preset length of time is reached (and thus when time is up), recording will start.

• Absolute time: A reference time is set, and from that time recording will start at preset time intervals (each time when time is up).

• SINGLE

The logging interval is decided automatically depending on the chart speed and the number of columns for digital printouts.

Recording interval in logging mode

This recording interval can be selected from MULTIPLE or SINGLE

• MULTIPLE

Same as for the analog trend mode

• SINGLE

From the above mentioned six preset recording intervals, the interval set as Timer 1 will become the recording interval.

Resetting the Recording Interval (Timer Reset)

This function will reset the elapsed time of the above mentioned MULTIPLE recording interval to zero. Usually recording will start according to the recording intervals, but when you reset the elapsed time using this function, the results are the same as for time-up.

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2-9

2.3 Recording Functions

Recording Span

The maximum value and the minimum value of the measurement range are decided when setting the type of input. The difference between the minimum value and maximum value which will be recorded within this measurement range, is called the recording span. The value on the left and right side of the recording are called the left span and right span respectively.

Starting/Stopping Recording

Usually starting/stopping movement of the chart and trend recording is carried out by pressing the appropriate key on the operation panel. But movement of the chart and trend recording can also be started/stopped upon alarm occurrence or by remote control (event/action function).

Recording Method of Trend Recording

Chart movement can start by either key operation or event/action function and selected channels will thus be recorded as trend recording.

Normal Recording

Selected channels will all be recorded regardless of the below mentioned occurrence/release of alarms or group settings. Recording will start when the chart starts moving.

Trend Recording upon Alarm Occurrence

• Trigger Recording

All channels where an alarm occurred will be recorded. Even when the alarm is released, recording will continue.

• Level Recording

All channels where an alarm occurred will be recorded. When the alarm is released, recording will stop.

Group Trend Recording

Channels can be clustered in a group, and only those channels will be recorded.

Recording Zone

Scale Values

The recording span of measurement values on the chart is called recording zone. For each channel you can set between what locations on the chart the measurement values will be recorded. It is possible to assign zones so that the analog trend recordings of each individual channel will not overlap. This setting is only valid for trend recordings in the analog trend mode. The default setting is the full recording width of 150mm for the DR130 or 250mmfor the DR231/DR241. The left and right boundary of the recording zone (left position and right position respectively) correspond to respectively the left and right span of the recording span.

Trend of channel 1

Left position of zone 1

(=left span of ch1)

Zone 1 Zone 2 Zone 3

Right position of zone 1

(=right span of ch1)

Trend of channel 2 Trend of channel 3

Scale values are used to mark the divisions of zones and three different scale format can be selected.

2-10

IM DR231-01E

Partially Expanded Recording

When carrying out trend recording, partially expanded recording enables you to compress a part of the recording span in order to examine the expanded (other) part of the span in more detail. The left boundary of the recording span being 0%, and the right boundary of the recording span being 100%, a segment of the recording span can be compressed. The following example shows a situation where 25% of the recording span has been compressed. The points A, B, C, D, E and F before compression correspond to the points A’, B’, C’, D’, E’ and F’ in the figure after compression. The 25% left of the boundary shows –6 to 0V, whereas the 75% right of the boundary shows 0 to 6V.

•Before compressing

–6 –5 –4 –3 –2 –1012345

2.3 Recording Functions

6 (V)

Measurement value (Recording span)

Functions

Interpolation Function

Chart directionChart direction

0 50 100

(% of compression:RATE)

Recording

span

% of full recording span

•After compressing 25% of recording span

–6 –5 –4 –3 –2 –1

E’

0 25 100

0 12345

Bounda value

A’

B’

D’

F’

(% of compression:RATE)

C’

Recording

span

6 (V)

Measurement value (Recording span)

% of full recording span

When carrying out trend recording and a measurement value differs greatly from the previous one, the track of the recording changes stepwise in the dot printing. In cases like this, interpolation will be carried out on the horizontal line to connect the two divergent trend tracks. When the horizontal lines of several channels are to be recorded on exactly the same location, only the recording color with the higher priority will be used. The priority of recording colors is black > purple > red-purple > navy blue > red > blue > brown > green > orange > yellowish green, which means that black has the highest priority. In the figure below a recording example is given of a horizontal line in the colors black, red and yellowish green. In the area where red and yellowish green overlap (labeled as a), only red dots will be recorded, and in the area where black, red and yellowish green overlap (labeled as b), only black dots will be recorded. However, at the locations where the recordings diverge after connecting a horizontal line, all

recording colors will be recorded.

IM DR231-01E

Chart direction

Red Yellowish

green

Black

2-11

2.3 Recording Functions

List Printout

A list printout will show the following items.

• Title (if a title has been entered)

• Date and time

• Measurement interval, recording interval, chart speed and recording mode

• Timer setting (6 Multiple and Single)

• Match time: a specific time is set and when that time is reached, a preset operation will be

carried out (refer to event/action function on page 2-18)

• Tags for each channel, input type, recording span and linear scaling values (this print can be selected ON/OFF)

• Alarm (this print can be selected ON/OFF)

• Group setting

• For each individual channel: whether the trend mode is ON/OFF, whether interpolation is ON/

OFF, recording zone settings, partially expanded recording settings, selected Timer No., whether moving average is ON/OFF, alarm type and whether manual print is ON/OFF (this print can be selected ON/OFF)

• Headers (only when input is applied)

• Contents of up to 20 messages

• Settings related to event/action function

• Selections related to this list printout

2-12

IM DR231-01E

Manual Printout

Header Printout

Additional Printouts

2.3 Recording Functions

One scan of measurement values of selected channels will be recorded as digital values together with the date and time. This printout can be executed by key operation or by event/action function (refer to page 2-18). Refer to page 2-6, 2-7 for a recording example.

For the header, you can print as many as 60 characters each on 5 lines (DR130) or as many as 80 characters each on 5 lines (DR231/241) and its recording can be executed by key operation.

While recording analog trends it is possible to have engineering units, tags, scales, alarm, title, messages, etc. printed along with the measurement values and the date/time.

• Engineering units; these will be printed in combination wiht the linear scaling function (refer to page 2-17)

• Channel No. or tag; a preset tag can be printed for each channel; the selection whether to print the channel No. or the tag (refer to page 2-8) can also be done

• Scale printout; values corresponding to the scales will be printed (refer to page 2-10)

• Alarm printout; alarm information (refer to page 2-16) will be printed upon occurrence (or

release) of an alarm. You can also set a message to appear upon occurrence of an alarm

• Title printout; A title of up to 32 characters can be printed. Furthermore, the title can be set to be printed at regular intervals (refer to title pitch on page 2-8)

• Message printout; Recording of messages of up to 16 characters can be executed by key operation or event/action function. Time will also be printed together with the message. Up to 20 different messages can be entered.

Functions

Set-Up List Printout

Match Time Function

Each item as described in Ch. 10 will be printed.

You can preset a time when you want recording to start/stop using the event/action function (refer to page 2-18). When this time is reached, recording in the analog trend or logging mode will start/ stop.

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2-13

2.4 Alarm Function

This function will show an alarm on the display or generate an alarm output signal with /A4 or /R1 option when the measurement conditions of a channel exceed/fall below preset values. Up to four alarms can be set for each channel.

Type of Alarms

Six types of alarms are available, namely high limit alarm, low limit alarm, high limit on rate-ofchange, low limit on rate-of-change, difference high limit and difference low limit.

Interval for Rate-of-Change Alarms

In case of high/low limit on rate-of-change alarms, variation is measured over a preset interval, and if the variation exceeds a preset value, an alarm occurs. This interval can be set and applies to all channels.

Alarm Hysteresis

•High limit alarm

Measurement values

•High limit on rate-of-change

Measurement value

Set interval

t –t

Measured variation

Set variation

T –T

Time

•Low limit on rate-of-change

Measur-

ement value

Set interval

t –t

You can set the width between the value of alarm occurrence and its release. This setting prevents frequent alarm occurrences/releases in an unstable environment. Hysteresis values can be set in the 0-1% percentage range of the recording span. The hysteresis setting is used for high and low limit alarms.

•Low limit alarm

Alarm occurrence

Hysteresis

(Approx. 0.5%)

Set alarm value

Alarm release

Measurement values

Hysteresis (Approx. 0.5%)

Alarm occurrence

Alarm release

Set variation

T –T

Measured variation

Time

Set alarm value

Internal Switches

Alarm Output Relays

2-14

Sixty internal switches are provided which can be operated upon alarm occurrences. These switches are only for internal operations and are used in combination with the event/action function (refer to page 2-18).

If both /A4-option and /R1-option are installed, twelve alarm output relays are provided for external output.

IM DR231-01E

Operation Mode

2.4 Alarm Function

Energizing/De-energizing Setting

The alarm output relays can be selected to be energized or de-energized on alarm occurrence. Using de-energizing, the alarm output relay will be activated when the power drops in the same way as when an alarm occurs. This setting can be done for each relay individually.

Relay contacts in case of energizing

A-contact

When power is OFF When power is on

and no alarm has occurred

When power is on and an alarm has occurred

Functions

NO CNOC

When power is OFF When power is on

NO C

and no alarm has occurred

NO CNO C

When power is on and an alarm has occurred

NO C

C-contact

When power is OFF

When Power is ON and no alarm has occurred

NO C NC NO C NC NO C NC

When Power is ON and an alarm has occurred

Relay contacts in case of de-energizing

When power is OFF When Power is ON

and no alarm has occurred

NO C NCNO C NC

When Power is ON and an alarm has occurred

NO C NC

AND/OR Setting

When a group of alarms share the same internal switch or alarm output relay, you can select how the internal switches/alarm output relays will be operated. AND: will be operated when all alarms are occurring; OR: will be operated when at least one alarm is occurring.

Alarm occurrence

Operation

Alarm status

Alarm output relay status

Channel 1

Channel 2

AND

HOLD/NON-HOLD Setting

You can select whether to hold the operating status of operated internal switches or alarm output relays. This setting applies to both the internal switches and the alarm output relays.

IM DR231-01E

Alarm status Operation of

Internal switch/ alarm output relay

Alarm release

Working Working

Alarm reset (Refer to page 2-16)

Alarm release

Reflashing Alarm Setting

When several alarms share the same alarm output relay, you can select this setting which results in a short de-operation of the relay when a second alarm occurs.

Alarm occurrence

Working

Approx. 200ms Approx. 200ms

Working

Alarm status

Alarm output relay

Channel 1

Channel 2

Channel 3

Reflash=ON

Reflash=OFF

2-15

2.4 Alarm Function

Recording Alarm Information

Analog Trend Mode

When an alarm occurs (or releases), the occurrence/release mark, message, channel No. or tag and time of occurrence/release will be printed on the right side of the chart.

Logging Mode

• If an alarm occurs, the type of alarm will be printed together with the measured value.

• If an alarm occurs (or is canceled), the alarm occurrence/cancellation mark, channel No./TAG,

the type of alarm, time when the alarm occurs/cancels, and messages are printed after all the measured values.

Displaying Alarm Information

Alarm Indicator

• “ALARM” Indicator

When at least one alarm occurs, the “ALARM” indicator at the right of the display will light.

• Display per Channel

In sub-display 1 or 2, the alarm statuses of a maximum of 30 channels (according to the specifications) can be displayed (refer to page 2-1). Besides, when the measurement value of a channel where an alarm occurred is being displayed, the type of alarm will appear between the channel number and the measurement value.

Channel No. Type of alarm Measurement value

001 H 10.000mV

Alarm Reset

Alarm Display Hold Function

This function allows the alarm display to remain even when the alarm has already been released. This function can be selected ON or OFF and applies to all alarms. When the function is set to ON, if an alarm occurs, the alarm display flashes.

Alarm Acknowledge Function

This function only resets the display and therefore allows you to verify the current alarm status on the display. When the alarm display hold function is ON, selecting the ALARM ACK menu results the alarm display changing from flashing to lit and will turn off when the alarm is released. This setting applies to all alarms.

You can reset the internal switches and alarm output relays and the corresponding displays. The previously mentioned alarm acknowledge function has the same function as resetting the alarm display here. Resetting the internal switches and alarm output relays when the relay hold function is set to ON has the following affects and depends on the alarm status.

• when alarms occur continuously, the internal switches/alarm output relays will turn to their non-operative status for a short period but soon change into their operation status.

• when alarms are released, the internal switches/alarm output relays turn to their non-operative status.

2-16

IM DR231-01E

2.5 Standard Computation Functions

Standard computations such as difference between channels and linear scaling can be set with measurement input settings. A moving average computation is also available.

Difference between Channels

This function computes the difference between the measurement values of a selected channel (=reference channel) and any other channel (=destination channel). This can be applied to each channel and the computation formula is as follows.

Result of difference between channels computation = measurement value of destination channel — measurement values of reference channel

Linear Scaling

This function changes the left and right span of the recording span to left and right scale values which are converted to a different physical quantity. This can be applied to each channel and a different engineering unit can be entered for display and printouts.

Example where voltage values are cenverted into linear scaling values

Functions

Moving Average

Left span:-2V

(=left scale:-0.1A)

Right span:2V

(=Right scale:1.1A)

This function computes a moving average over a preset number (K) of measurement values. This function is useful for displaying and recording of unsteady measurement values. The computation formula is as follows.

m= (Mm-(K-1) + Mm-(K-2) + ... + Mm-2 +Mm-1 + Mm) / K

where D

m : “m”th average value

m-(K-1) : the measurement value of the “K-1”th measurement before the “m”th

measurement

m-(K-2) : the measurement value of the “K-2”th measurement before the “m”th

measurement .. ..

m-2 : the measurement value of the second last measurement before the “m”th

measurement

m-1 : the measurement value of the last measurement before the “m”th measurement

m : the measurement value of the “m”th measurement

K : number of samples, and an integer ranging from 2 to 64

At the first computation, the measurement value of the first measurement will be multiplied by the number of samples, after which the average will be taken. The measurement values of the second and later measurements will replace these in turn, after which the average will be computed each time.

IM DR231-01E

2-17

2.6 Other Functions

Event/Action Function

Following the occurrence of an event such as remote control signal (12), alarm, internal switch, chart end signal, timer, match time or key operation, any of the following actions can occur.

• Alarm acknowledge

(refer to page 2-16)

• Alarm reset

(refer to page 2-16)

• Timer reset

(refer to page 2-9)

• Recording start/stop

According to the recording mode and recording format, recording will start/stop

• Manual printout

(refer to page 2-13)

• Digital printout

(refer to page 2-6, 2-7)

• Message printout

(refer to page 2-13)

• Message display

A preset message will be displayed on the main display

• Change of chart speed/recording interval

Chart speed 1 and recording interval 1 will change to chart speed 2 and recording interval 2, and analog trend and logging recording will be carried out. Usually recording will be carried out using chart speed 1 (set at the menu displayed after having pressed the CHART key) and with recording interval 1 (set at the menu displayed after having pressed the SET key at a touch). Upon the occurrence of an event, recording will be carried out using chart speed 2 and with recording interval 2 (set at the menu displayed after having pressed the SET key for three seconds).

• Group trend recording

(refer to page 2-10)

• Saving and reading of measured data, computed data and set-up data

This function is available if the instrument is equipped with a floppy disk drive.This function enables saving of data to the internal RAM disk or floppy disk and reading of data into the instrument.

• Starting/stopping of computation, reset, clear, and group reset

This function is available if the instrument is equipped with the computation function or equipped with a floppy disk drive.This function enables starting and stopping of computation.

• Flag

Valid only for models with mathematical option (/M1.) Set the flag to 1.

Key-Lock Function

2-18

This function prevents alterations by careless key operations. When the key-lock function is activated, the indicator “KEYLOCK” at the right side of the display will be lit. All key operations, except power ON/OFF, DISP/MODE key and the cursor, will then be disabled. However, you can preset whether RECORD/FEED/PRINT/FUNC/M.FUNC1 and M.FUNC2 keys will remain operable even after key-lock has been set. Furthermore, when activating or releasing the key-lock, a menu for password verification appears to prevent the key-lock to be used by unauthorized operators.

IM DR231-01E

External Input/Output Function (Option)

Alarm Output

When /A4 option is installed ten external output relays (make contact) can be used, whereas with /R1 option is installed, two external output relays (transfer contact) can be used. These relays will be operated when an alarm occurs. For details concerning their settings and their relation with alarms, refer to page 2-15, 2-16.

Fail Output

When /R1 option is installed, one external output relay (transfer contact) is used for fail output. This relay will change to the de-energized status when a failure of the recorder occurs.

Usually In case of failure In case of power OFF

NO CNC NO CNC NO C NC

Chart End Output

When /R1 option is installed, one external output relay (transfer contact) is used for chart end outout. When the chart has only 2cm or less paper, the “CHART” indicator at the right of the display will light, and recording will stop. The relay will change to the energized status.

Usually In case of Chart end In case of power OFF

2.6 Other Functions

Functions

NO C NC NO CNC NO C NC

Controlling Recording Functions by Remote Control

The recording functions can be controlled by the input of up to 12 contact signals when /R1 option is installed. You can choose one of the following operations for each of the 12 signals. The remote control function can be one of the events of the event/action function described on the previous page.

• Alarm acknowledge

• Alarm reset

• Timer reset

• Recording start/stop

• Manual printout

• Digital printout

• Message printout

• Message display

• Change of chart speed/recording interval

• Group trend recording

• Starting/stopping/clearing/resetting computation

• Saving/reading measured/computed data, reading set-up data

Communication Interface (Option)

Either the GP-IB interface, RS-232-C interface, RS-422-A/RS-485 interface, or ethernet is available as an option and should be specified at the time of ordering. For details regarding operation and commands, refer to IMDR231-11E.

Internal Illumination (Option)

Clear internal illumination for easy distinction of traces is available as an option. Internal illumination will be provided when the power is turned ON.

IM DR231-01E

2-19

2.6 Other Functions

Carrying Handle (Option)

A carrying handle is available as an option for the stand-alone model DR231 for making transport of the instrument easier.

FDD (DR130-1, DR231-1, DR241-1)

This function enables saving/reading of measured data, computed data and set-up data for SET mode to/from the internal RAM disk, and saving/reading of set-up data for SET and SETUP modes to/from a floppy disk. This also allows you to use events provided by the event/action function as a trigger to save/ retrieve measured/computed data to/from the internal RAM or retrieve set-up data when an event takes place.

Computation Function (Option)

This function is available if the instrument is equipped with the computation function (/M model). This function executes the following computations, and displays and records the results. Four arithmetical operations (addition, subtraction, multiplication, division), square root, absolute values, common logarithm, natural logarithm, power, logical product, logical sum, exclusive OR, logical negation, statistical operation, relational operation Up to 30 channels can be used for computation. It is also possible to use the event/action function to start/stop computation or clear data for computation channels. Furthermore, up to 4 levels of alarm (upper-limit alarm, lower-limit alarm) can be set for computation channels.

RRJC (Remote RJC, available if the instrument is equipped with the optional MATH function)

In cases where the object is located in distance for temperature measurement using thermocouples, the temperature of the object can be measured without using a number of expensive thermocouples if a junction terminal is installed near the object. This method requires the object to be connected to the terminal via a thermocouple, and the terminal to this instrument via copper lead wires. Furthermore, the junction terminal needs to be connected to an input terminal of this instrument via a thermocouple. The temperature of the junction terminal is then measured to carry out compensation for the reference contact point used for measurement of temperature of the object, then finally temperature of the object is measured.

This instrument

Input terminals

Thermocoupler*

Copper lead wire

Junction terminal

(to be provided by the customer)

Reference channel

Thermocoupler*

* Thermocouplers of the same type must be used

Computing & Report Function (Option)

This function can print the results of a statistical calculation of data on a specified channel (measurement or computation channel), in a format predetermined for a preset time, date or month, or send out the results to a communication line. The types of computations are averaging (mean value, maximum and minimum), instantaneous value calculation and summation (sum, cumulative sum).

2-20

IM DR231-01E

3.1 General Precautions for Installation

Safety Precautions

Read the safety precautions

Make sure to read the safety precautions described on page 4 before using the instrument for the first time.

Do not remove any covers from the instrument

For internal inspection or adjustment, contact your nearest sales representative. Addresses may be found on the back cover of this manual.

In case of malfunctioning

Never continue to use the instrument if there are any symptoms of malfunctioning such as unusual sounds, smell or smoke coming from the instrument. Immediately turn OFF the power and unplug the power cord. When using an adapter for direct wiring to the power supply, immediately turn OFF the power supply. Also disconnect the power to the equipment under measurement. Contact your sales representative or nearest service center. Addresses may be found on the back cover of this manual.

Power cable

Nothing should be placed on the power cable; it should also be kept away from any heat sources. When unplugging the power cable from the outlet, never pull the cord itself. Always hold the plug and pull it. If the power cable is damaged, contact your dealer for replacement. Refer to page 2 for the part number when placing an order.

General Handling Precautions

Never place anything on top of the instrument

Never place another instrument or any objects containing water on top of the instrument. Otherwise a failure may occur.

When moving the instrument

First turn off the power of the equipment being measured and disconnect the measurement leadwires and the communication cable. Then turn the power switch of this instrument OFF and unplug the power cable from the outlet. When carrying the instrument, securely hold the instrument with both arms and take care not to drop it.

Ventilation openings

Do not block the ventilation openings in order not to raise the internal temperature.

Installation and Wiring

IM DR231-01E

Electrically charged objects

Don't bring electrically charged objects near the input terminals. The internal circuitry might be damaged.

Chemicals

Do not pour volatile agents on the case nor leave the case in contact with rubber or PVC products for a long period. The case is made of a thermoplastic resin, so take care not to let anything hot such as a soldering iron touch the case.

Cleaning

When cleaning the case or any other part of the instrument, first remove the power cord from the receptacle (and in case of direct connection, disconnect the power lines). Do not use volatile chemicals since this might result in dis-coloring etc. Always use a dry, soft cloth for cleaning.

When not using the instrument for a long time

When the instrument is not being used for an extensive period of time, unplug the power cord from the outlet (when using an adapter for direct wiring to the power supply, disconnect the power cord from the outlet).

3-1

3.2 How to Install

Installation Conditions

The instrument must be installed in a location where the following conditions are met.

Ambient temperature and humidity

• Ambient temperature: 0 to 50°C (5˚ to 45˚C, when the recorder includes a floppy disk drive)

• Ambient humidity: 20 to 80%RH for 0 to 40°C, 10 to 50%RH for 40 to 50°C

However, no condensation should be present.

• Installation location: Room

• Installation height: Altitude up to 2,000 m

Note

Internal condensation may occur if the instrument is moved to another place where both the ambient temperature and humidity are higher, or if the temperature changes rapidly. In case of thermocouple input, this might result in erroneous measurements. In those cases, allow the instrument to achieve equilibrium with its new environment for at least one hour before starting operation.

Never install the instrument in any of the following locations:

• in direct sunlight or near heat sources;

• where an excessive amount of soot, steam, dust or corrosive gases are present;

• near strong magnetic field sources;

• near high voltage equipment or power lines;

• where the level of mechanical vibrations is high;

• in an unstable place.

Installation Method

DR130/DR231

Can be used on a desk-top, installed on the floor, or rack-mounted. Always install the instrument vertically.

• Desk-top or floor installation

Install the instrument vertically on a horizontal flat floor as shown below.

• Rack mounting

The following fitting can be supplied for rack mounting.

Name Model Description

Rack mount fitting DV400-013 Conforming to ANSI/EIA, for DR231 Rack mount fitting DV400-015 Conforming to ANSI/EIA, for DR130

3-2

• External dimensions and rack mounting dimensions for the DR130 and DR231 are shown below.

• To install the rack mount fitting on the instrument, remove the screws at the right and left forward of the instrument and use the mounting screws attached to the rack mount fitting. Be careful that right and left screws have different lengths. The screw at the right when facing the front of the instrument is M4 of 20 mm long and the left screw is M4 of 16 mm long. Appropriate tightening torque is 1.4 to 1.5 N·m (14 to 15 kgf·cm).

• If another instrument is to be mounted under this instrument in an ANSI/EIA rack, remove the prong or brackets designated with 1 and 2 in the figure below because they may interfere with both instruments.

IM DR231-01E

3.2 How to Install

DR130 AC power supply model

338 30 207

622125

DC power supply model

30 252 98.8

98.8

Installation and Wiring

310

Rack Mounting Dimensions

AC power supply model

Panel face

482.6±1

11.3

44.5

146.1 44.544.5

37.5

44.5

310

112

37.5 44.5 146.1

DC power supply model

Panel face

1&2 : Removed

IM DR231-01E

1 & 2: Removed

3-3

3.2 How to Install

266

DR231

438

AC power supply model

207

98.8

DC power supply model

252

98.8

Rack Mounting Dimensions

AC power supply model

±1

11.3

6.8

265.9±1

190.5±0.5

482.6

11.3 30

6.8

265.9±1

190.5±0.537.7

Panel face

3-4

37.7

112

1&2:Removed

DC power supply model

Panel face

112

1 & 2: Removed

IM DR231-01E

3.2 How to Install

DR241

• Panel mounting

Use steel plates 3 mm thick or more for panel mounting. The external and panel cutting dimensions for the DR241 are shown below. The panel cutting dimensions include the cutting interval for multiple mounting on the same panel. The DR241 weighs about 16 kg, so a shelf should be provided to support the DR241 behind the panel. Insert the instrument from the front face of the panel. Insert the blocks of the mounting brackets as accessories into the rectangular holes (after removing seals) on right and left sides of the instrument, push the brackets toward the rear, and engage the blocks with rectangular holes. When a screw attached on each bracket is turned clockwise, the entire brackets are pushed against the panel rear. Tighten the screws to securely fix the instrument to the panel. Proper screw-tightening torque is 0.8 to 1.2 N·m (8 to 12 kgf·cm). The brackets can be used for panels of 3 to 26 mm thick.

444

203

100

Installation and Wiring

288

At least 80 mm

Panel cutting dimension

At least 520 mm

425

280

281

IM DR231-01E

3-5

3.3 Installing the Chart and Ribbon Cassette

Installing the Chart

Preparing the Chart

1. To prevent double feed of the folded chart, sufficiently ruffle and fan the chart on both folded side ends.

Note

• Use chart papers specified by Yokogawa (part number: B9855AY for DR130, B9627RY or B9627AY for

DR231/DR241). Using chart papers other than those specified may cause problems such as large recording errors or the paper getting caught under the sprocket.

Preparing the Chart Cassette

2. Open the front door and draw out the chart cassette from inside of the main unit by pulling forward the chart cassette pressers while simultaneously pushing them (both right and left pressers) toward the center.

Chart cassette

Chart cassette presser

3. Open the chart pressure plate 1 by pulling the right and left lever of the chart pressure plate 1.

Lever of chart pressure plate 1

Chart cassette

Chart pressure plate 1

4. Open upward the chart pressure plate 2 by simultaneously pushing the right and left latch release buttons of the chart pressure plate 2.

Sprocket

Platen

Chart pressure plate 2

Latch release button of chart pressure plate 2

3-6

IM DR231-01E

3.3 Installing the Chart and Ribbon Cassette

Loading the Chart Paper

5. Place the chart paper in the chart storage housing, and move the paper to the left. Position the chart so that its round perforations are on the left and the recording surface faces upward when the chart paper is wound around the platen.

Chart paper

Platen

Chart pressure plate 2

Chart storage housing

6. Pass the chart paper through the gap between the chart pressure plate 1 and the platen.

Chart paper

Chart rest cover

Chart pressure plate 1

Fold line of chart paper

Guide pin

Sprocket

Right and left position mark

7. Align the right and left chart paper perforations. Set the chart paper so that the right and left marks of the sprockets and the fold line are aligned.

8. Close the chart pressure plate 1 until it latches. Confirm that the horizontal lines of the chart paper are parallel with the horizontal line of the chart pressure plate 1. If they are not parallel, open the chart pressure plate 1 and align the right and left perforations again.

9. Close the chart pressure plate 2. Press lightly on chart pressure plate 2 until it latches securely.

10. Fitting the guide pin of the chart cassette in the main unit guide groove, place the chart cassette on the bottom of the main unit and slide the cassette deep inside the main unit until the latch engages.

11. Turn on the power of the main unit and feed the chart paper by pressing the FEED key on the operation panel. Feed the chart paper by three folds or more to the chart paper rest and check that the paper is fed properly. Check this in the same way when the chart paper is fed manually without recording. If the chart paper is not fed properly, repeat the procedure from step 2. For details of turning the power on, see page 3-23.

12. When the chart paper approaches the end, the words "RENEW CHART" in an scarlet strip on the paper appear. Prepare a new set of chart paper.

13. When the letters "CHART" in the status indicator in the display light, it indicates that the paper has run out. Replace the chart with a new one according to the above procedure.

Installation and Wiring

IM DR231-01E

* To remove the chart paper from the chart rest, open the chart rest cover and take out the paper.

3-7

3.3 Installing the Chart and Ribbon Cassette

Loading the Ribbon Cassette

Preliminary Preparation

· If the carriage to which the ribbon cassette is to be mounted is located near the right end, turn off the power and bring the carriage to a location near the left end by turning the screw shaft, then load the ribbon cassette.

· Set the RECORD key on the operation panel to OFF and set all the recording actions for the event/action functions (see page 9-1) to OFF so that recording does not start while loading the ribbon cassette. If applicable, turn off the power.

Note

Do not perform recording without the chart cassette loaded, otherwise the platen may be scratched or the chart paper may break.

Load the Ribbon Cassette into the DR130/DR231

1. Open the front door and remove the chart cassette from the main unit.

2. Press the red lever at the bottom of the carriage. The ribbon cassette holder moves to the right.

Ribbon cassette holder

Screw shaft

Red lever

3. Touch the ribbon cassette holder with a finger and tilt the housing downward.

4. Turn the ribbon cassette rotating knob in the direction of the arrow (counterclockwise) to take up the ribbon slack.

5. Fit the projection of the housing into the slot of the ribbon cassette and insert the cassette fully into the holder.

6. Bring up the front part of the cassette until it latches and make sure it is horizontal.

3-8

IM DR231-01E

3.3 Installing the Chart and Ribbon Cassette

7. Push the ribbon cassette to the left until the latch engages. Check that the three white lines of the printer head are not visible when viewed from the front. If the white lines can be seen, the ribbon cassette is not properly loaded. Push the cassette to the left again.

8. Turn the ribbon cassette rotating knob once more in the direction of the arrow (counterclockwise) to take up the ribbon slack.

9. Return the chart cassette to the main unit.

10. Feed the chart paper by pressing the FEED key on the operation panel to prevent a delay in starting the chart paper feed.

Note

• Check that the ribbon cassette is properly loaded in the carriage.

• If a ribbon cassette is used for a long time, the ribbon may become wavy and move out of the dot printing

range of the printer head. If this happens, replace the ribbon with a new one.

Load the Ribbon Cassette into the DR241

1. Open the front door and open the display door. The ribbon cassette can be loaded without removing the chart cassette from the main unit.

2. When the chart cassette is removed, press the red lever 1 at the bottom of the carriage. When the chart cassette is not removed, pull forward the red lever 2, then the ribbon cassette holder moves to the right.

Ribbon cassette holder

Red lever 2

Installation and Wiring

Red lever 1

3. Turn the ribbon cassette rotating knob in the direction of the arrow (counterclockwise) to take up the ribbon slack.

4. Fit the projection of the holder into the slot of the ribbon cassette and insert the cassette fully into the holder.

IM DR231-01E

3-9

3.3 Installing the Chart and Ribbon Cassette

5. Push the ribbon cassette to the left until the latch engages. Check that the three white lines of the printer head are not visible when viewed from the front. If the white lines can be seen, the ribbon cassette is not properly loaded. Push the cassette to the left again.

6. Turn the ribbon cassette rotating knob once more in the direction of the arrow (counterclockwise) to take up the ribbon slack.

7. Feed the chart paper by pressing the FEED key on the operation panel to prevent a delay in starting the chart paper feed.

Note

• Check that the ribbon cassette is properly loaded in the carriage.

• If a ribbon cassette is used for a long time, the ribbon may become wavy and move out of the dot printing

range of the printer head. If this happens, replace the ribbon with a new one.

3-10

IM DR231-01E

3.4 Connecting the Interface Cables

When connecting a personal computer to the instrument via a communication interface, observe the following:

GP-IB

The GP-IB connector of the GP-IB communication module is a 24-pin connector of IEEE St'd 488-1978. Only use cables that conform to IEEE St'd 488-1978 as a communication cable.

Connection Procedure

Connect the cable as shown in the figure below.

GP-IB module

Ferrite core

Personal computer

Ferrite core

Function grounding terminal

DR130 DR231/DR241

Personal computer

Ferrite core

Function grounding terminal

•When connecting the cable, take note of the following.

• To reduce noise, use two ferrite cores (e.g., ZCAT 3035-1330 from TDK) at both ends of the

interface cable as shown above.

• Securely tighten the screws which fasten the GP-IB cable connector.

• If more than one equipment is connected, the same addresses cannot be assigned to different

equipment.

• Use only cables of 2 m or less to interconnect each equipment.

Installation and Wiring

IM DR231-01E

How to Assign an Address

The address can be assigned easily by turning the rotary dipswitch as shown in the figure below. Any address can be set from "0" to "15"; the characters "A" to "F" on the dipswitch correspond to the address "10" to "15" respectively.

3-11

3.4 Connecting the Interface Cables

RS-232-C

Communication Settings

Communication parameters are set using the three switches located on the RS-232-C modules.

Switch 1

Switch 2

Switch 3

1234

ON OFF

Data length Baud rate

ON OFF

Not used Stop bit

Parity

ON OFF

Not used Handshake format

Switch 1 and No.4 of switch 2

Baudrate dipswitch No.1 No.2 No.3 No.4 (Switch 2)

150 OFF OFF OFF OFF 300 OFF OFF ON OFF 600 OFF ON OFF OFF 1200 OFF ON ON OFF 2400 ON OFF OFF OFF 4800 ON OFF ON OFF 9600 ON ON OFF OFF ←initial value 19200 ON ON ON OFF 38400 OFF OFF OFF ON

Data length dipswitch No.4

7 bits OFF 8 bits ON ←initial value

Switch 2

Parity dipswitch No.1 No.2

NONE OFF OFF ODD OFF ON EVEN ON OFF ←initial value

Stop bit dipswitch No.3

1 OFF ←initial value 2ON

Switch 3

Handshake format dipswitch No.1 No.2 No.3

no handshake OFF OFF OFF ←initial value XON-DTR* OFF OFF ON XON-RTS* OFF ON OFF CTS-DTR OFF ON ON CTS-RTS ON OFF OFF

*: When the baud rate is set to 38400, there is no handshake.

3-12

IM DR231-01E

3.4 Connecting the Interface Cables

1234

SW1

Data length Baud rate

ON OFF

1234

SW2

four-wire/two-wire Stop bit Parity

ON OFF

1234

SW3

Address (upper) Minimum response time

ON OFF

1234

SW4

Address (lower)

ON OFF

Connecting the RS-232-C Cable

For details on connecting the RS-232-C connector of the RS-232-C communication interface module to a personal computer, see IM DR231-11E, "DR231/DR232/DR241/DR242 Communication Interface User's Manual."

CAUTION

When (dis)connecting the RS-232-C cable, turn OFF the power of both the personal computer and the instrument. If the power is not turned OFF, malfunctions may occur and the internal circuitry may be damaged.

RS-422-A/RS-485

Note

To reduce noise, use ferrite cores (e.g., ZCAT 3035-1330 from TDK) for the interface cable as shown below. Two ferrite cores should be installed near both ends of the interface cable. If the noise is particularly bad, use several ferrite cores in series. Use a shielded cable for the interface cable and make a one-point grounding at the ground terminal of this instrument together with the functional-ground terminal of the personal computer.

Personal computer

Ferrite core

Function grounding terminal

DR130 DR231/DR241

Personal computer

Ferrite core

Function grounding terminal

Installation and Wiring

IM DR231-01E

Baud rate (No.1 to 3 of SW1)

Baud rate No.1 No.2 No.3

300 OFF OFF ON 600 OFF ON OFF 1200 OFF ON ON 2400 ON OFF OFF 4800 ON OFF ON 9600 ON ON OFF ←Default Setting 19200 ON ON ON 38400 OFF OFF OFF

Data length (No.4 of SW1)

Data length No.4

7 OFF 8ON←Default Setting

3-13

3.4 Connecting the Interface Cables

Parity (No.1 to 2 of SW2)

Parity No.1 No.2

None OFF OFF ODD OFF ON EVEN ON OFF ←Default Setting

Stop bit (No.3 of SW2)

Stop bit No.3

1 OFF ←Default Setting 2ON

Switch between four-wire/two-wire systems (No.4 of SW2)

four-wire/two-wire No.4

four-wire OFF ←Default Setting two-wire ON

Minimum response time (No.1 to 3 of SW3)

Minimum response time No.1 No.2 No.3

0ms OFF OFF OFF ←Default Setting 10ms OFF OFF ON 20ms OFF ON OFF 50ms OFF ON ON 100ms ON OFF OFF

Address (No.4 of SW3 and No.1 to 4 of SW4)

Address No.4(SW3) No.1(SW4) No.2(SW4) No.3(SW4) No.4(SW4)

1 OFF OFF OFF OFF ON ←Default Setting 2 OFF OFF OFF ON OFF 3 OFF OFF OFF ON ON 4 OFF OFF ON OFF OFF 5 OFF OFF ON OFF ON 6 OFF OFF ON ON OFF 7 OFF OFF ON ON ON 8 OFF ON OFF OFF OFF 9 OFF ON OFF OFF ON 10 OFF ON OFF ON OFF 11 OFF ON OFF ON ON 12 OFF ON ON OFF OFF 13 OFF ON ON OFF ON 14 OFF ON ON ON OFF 15 OFF ON ON ON ON 16 ON OFF OFF OFF OFF 17 ON OFF OFF OFF ON 18 ON OFF OFF ON OFF 19 ON OFF OFF ON ON 20 ON OFF ON OFF OFF 21 ON OFF ON OFF ON 22 ON OFF ON ON OFF 23 ON OFF ON ON ON 24 ON ON OFF OFF OFF 25 ON ON OFF OFF ON 26 ON ON OFF ON OFF 27 ON ON OFF ON ON 28 ON ON ON OFF OFF 29 ON ON ON OFF ON 30 ON ON ON ON OFF 31 ON ON ON ON ON

3-14

IM DR231-01E

3.4 Connecting the Interface Cables

For details on connectin the RS-422-A/RS-485 connector of the RS-422-A/RS-485 communication interface module to a personal computer, see IM DR231-11E, “DR231/DR232/ DR241/DR242 Communication Interface User’s Manual.”

CAUTION

When (dis) connecting the RS-422-A/RS-485 cable, turn OFF the power of both the personal computer and the instrument. If the power is not turned OFF, malfunctions may occur and the internal circuitry may be damaged.

Ethernet

Dip Switch

ON OFF

1234

10BASE-T Port

Connect the RJ-45 modular jack of the twist pair cable connected to the 10BASE-T network.

Status

Indicator LED

Tx (yellow)

LINK (yellow)

STS1 (green)

STS2 (green)

)

You can select the following three modes by setting the dip switch. Configuration mode: A mode in which the IP address, subnet mask, and default gateway are set

for the DR. Test mode: A mode in which the condition of the physical connection is tested. Communication mode: A mode in which the DR is connected to the network to carry out

communication. Use this mode to read in the DR measurement data with

the PC. In addition, you can turn ON/OFF the Keepalive function.

Installation and Wiring

IM DR231-01E

Mode Setting

Mode Switch 1 Switch 2

Configuration mode ON OFF Test mode OFF ON Communication mode OFF OFF ←Default Setting

Do not set both dip switches, 1 and 2, to ON.

Keepalive Setting

Keepalive Switch 3

Enable ON ←Default Setting Disable OFF

Keepalive is a function supported by TCP. It sends packets at constant time intervals and automatically disconnects when there is no corresponding response. This instrument sends packets at 30-second time intervals. If a response is not received, it sends 4 more packets at onesecond intervals. If a response is still not received, the connection is dropped.

Have dip switch 4 turned OFF.

3-15

3.5 Connecting the Signal Lines

W WARNING

• To prevent electric shock always make sure that the power supply is turned OFF before connecting.

• When 30VAC or 60VDC and more is applied to the output terminal of the alarm module or the output terminal of the DI/DO module, use double-insulated wires(withstand voltage performance: more than 2300VAC) for those wires which apply 30VAC or 60VDC and more. All other wires can be basic-insulated(withstand voltage performance: more than 1350VAC). Furthermore, use “crimp-on” lugs (for 4mm screws) with insulation sleeves for connecting to the screw terminal. Make sure that the crimp-on tool must be one specified by the crimp-on lugs manufacture, and that the crimp-on lugs and tool must be matched to the wire size. To prevent electric shock, do not touch the terminal after wiring and make sure to re-apply the cover.

CAUTION

• Do not apply an input voltage exceeding the following levels to each terminal of each module. Otherwise, the internal circuits may be damaged. Allowable input voltage

Universal or DCV/TC/DI input module

2 VDC range or less, RTD, TC and DI(CONT) : ±10 VDC 6 to 20 VDC range, DI(LEVEL) : ±60 VDC

DI/DO module : –2 to 7 VDC

Max. common mode noise voltage

Universal or DCV/TC/DI input modules : 250 VACrms (50/60 Hz)

• Output contact rating for DI/DO or Alarm input modules is 250 VDC/0.1 A (resistive load), 250 VAC/2 A (resistive load), 30 VDC/2 A (resistive load).

• The overvoltage categoly of each input module is CAT ll (IEC 1010).

• When connecting to a clamp terminal, use a signal conductor with the

following cross-sectional width:

Solid conductor 0.14 to 2.5 mm Stranded conductor 0.14 to 1.5 mm AWG 26 to 14

1 Check that the power switch of this instrument is turned off. 2 Remove the terminal cover. (the figure below shows DU100-11.)

3-16

Terminal cover

Screws for fastening the cover

3 Fasten the signal wires to the terminals as shown in the figure on the next page. 4 Re-apply the terminal cover and fasten the screws.

IM DR231-01E

3.5 Connecting the Signal Lines

Note

Make sure that the equipment connected to the signal in-/output conforms IEC (CSA) 950 or IEC (CSA)

1010. Also, make sure to use cables that conform to IEC (CSA) standards. In case you are using an internal RJC in case of thermocouple input, the following considerations are necessary to stabilize the temperature at the terminals. Always make sure to re-apply the terminal cover; The thermal capacity of the wiring should be small (cross sectional area of less than 0.5mm2); Minimize outside temperature fluctuations as much as possible. To prevent noise, make sure to ground each unit at the grounding function terminal (below the power switch) together at one point. Refrain from wiring the input signals parallel. However, if you do, then the following considerations are necessary. Ground all equipment at the same point; Do not turn the power of other equipment ON/OFF during operation; Do not use the burnout function.

Wiring Input Signal Lines (Universal and DCV/TC/DI input modules)

Terminals

Screw type terminal

DC voltage • TC • contact

RTD*

CH1 CH2

CH10

Wiring Diagram

DC voltage input/DI input (contact)

DC voltage input

Clamp type terminal

CH2

CH4

DC input

Measurement using RTD‘s cannot be made with DCV/TC/DI modules.

CH1

B b

CH3

CH9CH10

+-+-

Installation and Wiring

DC current input

IM DR231-01E

Compensation lead

Shunt resistor

Note:For 4 to 20mA input, shunt resistance value should

RTD inputTC input

bAB

be 250Ω ±0.1%

10Ω* max./leadwire Three wire resistances should be approx. equal.

*10Ω max. for Pt100Ω and Pt50Ω, 1Ω max. for Cu10Ω.

3-17

3.5 Connecting the Signal Lines

Wiring Output Signal and Remote Control Signal Lines (DI/DO and Alarm modules)

Terminals

DI/DO module

Failure output (transfer-contact) Chart end output (transfer-contact)

Remote control signal input (12 contact terminals)

ALM output 1

(transfer-contact)

ALM output 2 (transfer-contact)

Terminal arrangement

●

FAIL

●

CHART

●

REM

●

ALM

●

ALM

Alarm module

NO C

DT200-21

1 2

Alarm output (make contact)

Wiring AC Input Signal Lines (Power Monitor Module)

WARNING

• For hazard prevention, ALWAYS provide protective grounding before connecting measuring leadwires.

• When connecting any object being measured, ALWAYS turn off the power to the object. It is extremely dangerous to connect or disconnect interconnecting leadwires with the power to the object left on.

• Exercise utmost care to avoid connecting any current-mode circuit to a voltage-input terminal or any voltage-mode circuit to a current-input terminal. Wrong connection may result in damage to the circuit or equipment being measured or the DR232 or DR242 recorder itself, as well as bodily injury.

• Fuses are not built into voltage- and current-input terminals. ALWAYS install a fuse on the interconnecting leadwire. Use a fuse that will not permit the voltage or current being measured to exceed the maximum ratings of an AC input module. The maximum voltage and current that can continuously be imposed on an AC input module are as follows: Voltage: 250 Vrms; current: 5 Arms

• To avoid electrical shock, ALWAYS attach the terminal cover in place after the completion of wiring to the terminals so that the terminals cannot be accidentally touched.

CAUTION

3-18

• In wiring, use double-insulated leadwires that have sufficient withstanding-voltage and current-carrying-capacity margins against the voltage and current being measured and meet the ratings at which they are used.

• ALWAYS clamp measuring leadwires with the wire clips to prevent the wires from being disconnected from their terminals. As the measuring leadwires, use wires 0.2 to 2.5 mm2 (AWG14 to 25) thick so they can be fastened securely with the wire clips.

• The power monitor module is a product belonging to Installation (Overvoltage) Category CAT II.

IM DR231-01E

Diagram of Terminal Block

Single-phase Model

3.5 Connecting the Signal Lines

Three-phase Model

Wiring Diagrams

Wire clip

9mm

Wire clip

• Strip 9 mm of insulation off the leadwire.

• ALWAYS clamp the leadwire with the wire

clip.

• The recommended torque for fastening the wire clip screw is 0.4 to 0.5 N•m.

• Single-phase Two-wire Configuration

SOURCE

LOAD

SOURCE

FUSE

Installation and Wiring

LOAD

SOURCE

• Single-phase Three-wire Configuration (power monitor modules for three-phase use only)

SOURCE

LOAD

SOURCE

FUSE

FUSE FUSE

FUSE

• Three-phase Three-wire Configuration (dual-current/dual-voltage measurement; power monitor modules for three-phase use only)

LOAD

SOURCE

R S T

FUSE

FUSE FUSE

FUSE

LOAD

IM DR231-01E

3-19

3.5 Connecting the Signal Lines

• Three-phase Three-wire Configuration (triple-current/triple-voltage measurement; power monitor modules for three-phase use only)

SOURCE

LOAD

SOURCE

R S T

FUSE

FUSE FUSE

FUSE

LOAD

• Three-phase Four-wire Configuration (power monitor modules for three-phase use only)

LOAD

SOURCE

R S T N

LOAD

FUSEFUSEFUSE

3-20

IM DR231-01E

3.6 Connecting the Power Cable and Turning the Power ON/OFF

DR130/DR231 (when using the accessory power cable)

Follow the warnings below to avoid electric shock or damaging the instrument.

WARNING

• Connect the power cable only after confirming that the voltage of the power supply matches the rated electric power voltage for this instrument.

• Connect the power cable after checking that the power switch of this instrument is turned off.

• To prevent electric shock or fire, always use the power cable supplied by Yokogawa.

• Always use protective grounding to prevent electric shock. Connect the power cable of the instrument to a three-pole power outlet which has a protective ground terminal. Do not use the function grounding terminal (

marked terminal) under the power connecting part as the protective

ground terminal.

• Never use an extension cord that does not have protective grounding, otherwise the protection feature will be negated.

Installation and Wiring

Connecting Procedure

1. Check that the power switch is turned off.

2. Connect the plug of the accessory power cable to the power connector.

3. Plug the other end of the power cable into a power outlet that satisfies the following conditions:

For models with AC power supply

Rated supply voltage: 100 to 240 V AC (free power supply),

operating voltage: 90 to 250 V AC Rated supply voltage frequency: 50/60 Hz Power consumption: About 130 VA max. Use a three-pole power outlet provided with a protective ground terminal.

For models with /P6 option Rated supply voltage: 100 to 240 V AC (100/200 V auto switch),

operating voltage: 90 to 132/180 to 250 V AC Rated supply voltage frequency: 50/60 Hz Power consumption: About 130 VA max.

Use a three-pole outlet provided with a protective ground terminal.

DR130 DR130 with /P6 DR231 DR231 with /P6

option option

Power connector

IM DR231-01E

Power cable

3-21

3.6 Connecting the Power Cable and Turning the Power ON/OFF

DR241 (when connecting wires to screw terminals)

Follow the warnings below to avoid electric shock or damaging the instrument.

WARNING

• Connect the power wires after checking that the power supply is turned off to prevent electric shock.

• To prevent fire, use 600 V PVC insulated wire (AWG18) for both power and ground wiring (cross section of 0.83 mm corrosion finish, insulation thickness more than 0.8 mm, insulation resistance more than 50 MΩ/km at 20°C, approved EN60 320 (VDE0625)) for AC power, or equivalent cables. Also use wires with cross sectional area of 0.3 mm

• Before turning on the power, always ground the protective ground terminal so that the grounding resistance is 100 Ω or less. Do not use the function grounding terminal (marked terminal) under the power connecting part as the protective grounding terminal.

• For AC power and ground wiring, use “crimp on” lugs (for 4mm screws) with insulation sleeves. Make sure that the crimp-on tool must be one specified by the crimp-on lugs manufacture, and that the crimp-on lugs and tool must be matched to the wire size.

• To prevent electric shock, do not touch the terminals after wiring.

• Make sure to apply a power switch in the power supply cord with the

following characteristics:

• rated power current > 3 A

• rated rush current > 90 A

or thicker, anti-galvanic

(AWG22) or more for DC power.

• Connecting procedure for AC power supply

1. Check that the power switch is turned off.

2. Remove the cover protecting the power terminals.

3. Connect the power supply wires and the protecting ground wire to the power terminals.

4. Replace the cover.

Rated supply voltage: 100 to 240 V AC (free power supply),

operating supply voltage: 90 to 250 V AC Rated supply voltage frequency: 50/60 Hz Power consumption: About 130 VA max.

Power terminals

Power supply wires

Protective ground wire

3-22

IM DR231-01E

3.6 Connecting the Power Cable and Turning the Power ON/OFF

• Connecting procedure for DC power supply

1. Check that the power switch is turned off.

2. Remove the cover protecting the power terminals.

3. Connect the power supply wires and the function ground wire to the power terminals.

4. Replace the cover.

Rated supply voltage: 12 to 28 V DC,

operating supply voltage: 10 to 32 V DC

Power consumption: About 80 VA max.

Power terminals

Power supply wires

Function ground wire

• DR130/DR231 (when using the DC power supply connector)

Follow the warnings below to avoid electric shock or damaging the instrument.

Installation and Wiring

WARNING

• Connect the power wires after checking that the power is turned off to prevent electric shock.

• To prevent fire, use wires with cross sectional area of 0.3 mm (22AWG) or more.

1. Check that the power switch is turned off.

2. Connect the power supply wires and the DC power supply connector (standard accessories, part number:A1105JC). For the power supply wires, use wires 0.3 mm

Soldering

- (0 V DC)

+ (10 to 32 V DC)

Rated supply voltage: 12 to 28 V DC, operating supply voltage: 10 to 32 V AC Power consumption: About 80 VA max.

DR130 DR231

DC power terminal

(AWG22) thick.

DC power terminal

IM DR231-01E

DC power connector

3-23

3.6 Connecting the Power Cable and Turning the Power ON/OFF

Turning Power ON/OFF

The power switch is a push-button; the power is turned on when pressed once and turned off when pressed again.

DR130 DR231/DR241

Power switch Power switch

Note

• Before turning the power on, check that each unit is properly mounted and the power cable is correctly connected.

• If nothing appears on the display when the power switch is turned on, turn off the power and check the following:

• Is the power cable properly connected?

• Is the supply voltage within the range noted on the previous page?

• Is the power fuse blown (see page 13-2)?

If the problem still cannot be fixed, there may be an equipment problem; please contact your nearest sales representative Addresses may be found or the back cover of this manual.

• The device takes about 30 minutes to warm up.

• The service life of the lithium battery used to save the settings is about 10 years at an ambient

temperature of 23°C. If the settings cannot be held because the lithium battery has run down, please contact your nearest sales representative. Addresses may be found or the back cover of this manual.

Turning AC Power ON/OFF

When using the AC power supply on the DR130/DR231 with /P6 option, turn on the AC power switch on the upper right section of the rear panel. Pressing “ | ” turns the power on. Pressing “ ” turns the power off. To stop using the AC power supply, turn off the AC power switch.

DR130 DR231

Note

• AC power will operate as long as the AC power switch is on, even if the main switch is turned off. If you are not going to use the instrument for a long time, turn off the AC power switch.

AC Power switch

3-24

IM DR231-01E

3.7 Setting the Date and Time

RECORD

ALARM

CHART

KEYLOCK

SET=CLOCK

>Select Setting Parameter

CHART CLOCK

(Main menu)

SET=

CLOCK

D I S P M O D E

E S C

P R I N TF U N C

I N S D E L

R A N G E A L A R M

S E TC H A R T E N T E R

R E C O R D

F E E D

M. F U N C 1

M. F U N C 2

• Press the CHART key to display the CHART menu.

• Set and select

using or .

• To escape while using a single menu, press the MODE(ESC) key. The menu returns to the first menu to which the single menu belongs. Note that newly selected or set items will be canceled.

• When the device displays that setting is completed, the newly set or selected details are fixed.

(Lower menu)

96/01/01 03:36:23

>Set Date & Time YY/MM/DD HH:MM:SS

*** SET OK***

ENTERENTER

ESC

Setting the Date and Time

Set them in the order of year/month/day, hour:minutes:seconds.

• Year: Specify the lower two digits of the year. Example: 1996 → 96, 2000 → 00

• Month, day: Use two digits for each.

• Hour: 00 to 23

Press the ENTER key at the set time to make it effective.

Installation and Wiring

Note

The date and time settings are backed up by the lithium battery in the main unit.

IM DR231-01E

3-25

3.8 Countering Noise

Types and Features of Noise Sources

Commercial Power Supply

It is necessary to consider both 50 and 60Hz as noise components. It is important to note that a power supply line in which a thyristor or inverter is incorporated functions not only as an “energy surplus line”, but also as a “supply surplus line”.

Thyristor (SCR)

A thyristor is used to control power through ON/OFF modulation of commercial power by controlling the phase angle.

50Hz

60Hz

Voltage

noise

*Load

Thyristor

Unit

*heaters, etc.

phase angle

Thyristor waveform

Current

When the thyristor turns ON or OFF, a pulse noise is superimposed on commercial power supply, and its pulse width is approximately 1µs. Accordingly, thyristor noise can be defined as follows.

• thyristor noise = commercial power supply + pulse noise

Inverter

Commercial power supply is converted to direct current by a rectifier (sometimes the thyristor is used as the rectifier to stabilize direct current) and then modulated by a switching transistor and finally converted into alternating current at the desired frequency (from tens to hundreds of Hz) to drive a motor, for example. If the load to be driven is a fluorescent lamp, the frequency is tens of kHz. Accordingly, inverter noise can be defined as follows.

Inverter noise = commercial power supply + pulse noise (high density) + variable low

frequency noise Since the density of pulse noise is high compared to that of a thyristor and in addition, there is variable frequency noise, it is difficult to consider a countermeasure for inverter noise.

Commercial power supply

Rectifier output DC output Inverter output

3-26

Commercial power supply

Rectifier DC filter Inverter Motor

Principle of inverter

IM DR231-01E

Voltage waveform

Current waveform

3.8 Countering Noise

Installation and Wiring

Voltage/current waveforms of an inverter

Propagation of Noise

Relay

A relay is frequently used to amplify alarm and temperature controller outputs. However, since a counter-electromotive force (counter e.m.f.) is produced by coil inductance when the relay is turned off and the e.m.f. becomes noise, care must be taken. Due to chattering at the relay contact, tens to hundreds of kHz noise occurs mainly in bursts. Thus, the noise energy often becomes high.

Transceiver

In large-scale plants, transceivers are often used for communications between the field and the control room. Although W/G of the Japanese Electric Measuring Instruments Manufacturers Association recommends to use transceivers covering a wave band of 27MHz, smaller-sized transceivers for the 140 or 470MHz wave band are often used.

Noise Simulator

To test the immunity to pulse noise (mainly thyristor noise), a noise simulator is often used. A test noise of approximately 1kV for 0.8µs is used synchronously with the power supply frequency. Since data acquisition equipment is often used for measurements of equipment subjected to the pulse noise test, the influence of noise must be considered.

• Noise is propagated in the following three ways. Conduction: noise is conducted through a power line, input wiring, etc. Electrostatic induction: noise leaks through capacitances between wires and instruments. Electromagnetic induction: a loop in the input line, etc. induces an AC voltage by detecting the

AC magnetic field. In real applications, the above three propagation paths are not independent of each other. Their combination propagates noise to the equipment and causes problems.

IM DR231-01E

•Examples of noise propagated through each of these paths are given below.

Conduction: inverter noise, relay noise, thyristor noise, and noise caused by

surface temperature measurement of a power transistor, etc. Electrostatic induction: commercial power supply noise such as the hum of audio

equipment, relay noise, etc. Electromagnetic induction: magnetic leakage flux from a power transformer or motor, magnetic

field from a high-frequency induction furnace, the rotating magnetic

field of a power generator (Cu10Ω), etc.

The figure on the next page shows the propagation paths using practical examples.

3-27

3.8 Countering Noise

Example of a high-frequency induction furnace

Inverter power supply

(20 to 3500kW) Power supply

(0.2k to 10kHz)

Room

temperature

* Due to electromagnetic induction, current i flows through the conductor, creating joule heat which heats the furnace.

J=i

Electro magnetic induction noise

Electrostatic induction noise

Furnace

Temperature

inside

furnace

Hot-line conduction noise

Electro magnetic induction noise

Electrostatic induction noise

Line noise

The instrument Power supply

Basics of Anti-Noise Measures (part 1)

Common Mode Noise and Normal Mode Noise

Signal source resistances Normal mode noise

Signal voltage E

Common mode noise

Common Mode Noise (ECM)

Noise generated between the signal source and the ground of a measuring instrument. Since it is applied to both the H and L input terminals in phase with one another, it is also called in-phase voltage.

Inputs

Floating amp

Circuit common

Z2Z

Case

Signal component

Output

+ E

ONM

Normal mode noise component

3-28

Normal Mode Noise (E

)

This is an unfavorable noise that is superimposed on a signal voltage. Since it is a voltage between the H and L terminals, it is also called the line voltage, or since it is a voltage in series with the signal voltage, it is sometimes called the series mode voltage.

IM DR231-01E

3.8 Countering Noise

In the figure on the previous page, due to common mode voltage ECM, noise currents i1 and i flow through the impedance to grounds Z1 and Z2 and coupling impedance Z3, resulting in the generation of normal mode noise E noise is converted to normal mode noise. The amp is equipped with a built-in filter and in case of output E

the normal mode noise will be eliminated. This rate of conversion is called the

common mode rejection ratio and expressed by the following equation.

• Common mode rejection ratio

Since the actual CMRR is expressed using the ratio of an error component output caused by common mode noise to common mode noise, it contains the normal mode rejection ratio (NMRR) expressed by the following equation.

• Normal mode rejection ratio

The NMRR is a value that shows the ability to reject the output error (normal mode noise component: E

) by normal mode noise. Thus, this is also a very important value which shows

the resistance-to-noise characteristics of the measuring instrument.

Basics of Anti-Noise Measures (part 2)

Decreasing and Increasing Impedance

As described in the previous section, conversion of common mode noise into normal mode noise causes an error in the measured output. In other words, prevention of such a conversion is the key to anti-noise measures. As can be understood from the previous section, it is important to take the following measures to reduce normal mode noise.

• reduce the wiring resistances R

• increase the coupling impedance of common mode voltage E

These are called the decrease and increase of impedance as basics of anti-noise measures. In the above discussions, anti-noise measures have been described on the assumption that common mode noise has already been given. In real applications, common mode noise often occurs owing to grounding resistance as shown in the figure below.

between input terminals H and L. Like this, common mode

(CMRR)=20Log

(NMRR)=20Log

and R2, including the resistance of the wires.

(dB)

C M

(dB)

N M

Installation and Wiring

Signal source

One-point grounding

Grounding resistance and E

In such a case, perform one-point grounding as indicated by the dotted line, as an extreme example of decreasing impedance, to equalize the potentials of the signal source and the instrument. Rejecting common mode noise in this way is the basics of anti-noise measures.

Anti-Noise Measures in the Instrument Itself

Pulse width modulation type A/D converter (PWM type A/D)

This instrument uses a feedback pulse width modulation type A/D converter and has the following features:

• Linearity and stability are good because of the feedback effect.

• Integration type A/D converter ensures excellent noise suppression.

If the integration time is equal to the noise period, the positive and negative sides of the shaded part in the figure below cancel each other out and thus the average value becomes zero.

The instrument

Ground current

IM DR231-01E

3-29

3.8 Countering Noise

Balance each other

Input voltage (instantaneous value)

DC voltage (average value)

integration time

Normally, an integration time of 20ms (50Hz) or 16.7ms (60Hz) is selected depending on the commercial power supply frequencies. A 100-ms integration mode is added to the instrument to achieve superior noise rejection. However, when using the 100ms setting, the smallest measurement interval is longer than in case of the 20ms or 16.7ms setting. The integration effect enables the PWM A/D converter to perform the following two functions.

• Rejection of frequency determined by the reciprocal of the integration time and frequencies which are whole multiples of that frequency;

• First-order lag filter provided with cut-off frequency proportional to the reciprocal of the integration time.

The following table compares the integration times of 16.7ms, 20ms and 100ms.

Integration time Rejection frequency Cut-off frequency Remarks

16.7ms n×60Hz approx. 19Hz for 60Hz

20.0ms n×50Hz approx. 16Hz for 50Hz

100.0ms n×10Hz approx. 3.2Hz for both 50Hz/60Hz

n=1,2,3...

As shown in the table, the merit of 100.0-ms integration is not only that it applies to both 50 and 60Hz, but also that it provides a low cut-off frequency as the first-order lag filter and improves the noise rejection ability. The following figure shows the calculation values of the NMRR for three integration times and an example of actual measurement of the NMRR for a 100-ms integration signal.

• Calculated values of NMRR • Example of actual measurement of NMRR

(100ms)

-10

-20

-30

-40

-50

-60

-70

100ms

20.0ms

16.7ms

100

200

Noise Filter

This instrument is equipped with a low-pass filter (cutoff-frequency of 10Hz (for both 50/60 Hz), 50Hz,60Hz) which functions as a way of noise rejection. Also exponential averaging functions as a noise filter.

Anti-Noise Measures: Applications

Practical Measures

• Reducing noise itself

The basics of this practical measures dictates using the instrument in conditions where noise is suppressed as much as possible.

• for power lines: an increase of impedance; Separate the power lines for noise source equipment (inverter, thyristor, etc.) from those for

the measuring instrument.

3-30

IM DR231-01E

3.8 Countering Noise

• for input lines: an increase of impedance; Always separate the input line from the noise source lines (power and alarm lines). Step 1 : Install a separator.

Separator

Signal

lines

Special class 3 ground

Power

lines

(10Ω or less)

Step 2 : Keep the signal cables at least 15cm above the power lines using a bracket.

If the power lines are not shielded, the operating voltage is 220V or less, and the operating current is 10A or more, the distance between the signal cables and power cords must be 60cm or more.

Signal lines*

Installation and Wiring

Power

lines

at least 15 cm

Step 3 : Leave a clearance of at least 15 cm between the signal lines and power lines.

If the power lines are not shielded, the operating voltage is 220V or less, and the operating current is 10A or more, the distance between the signal cables and power cords must be 60cm or more.

at least 15 cm

Signal

lines

Power

lines

Step 4 : Lay the signal lines at right angles to the power lines.

If the power lines are not shielded, separate the signal lines and power lines where they cross using steel sheeting at least 1.6mm thick.

Signal lines

1.6mm

Power lines

* Separate analog signal lines and communication cables in the same manner as from power

cords.

IM DR231-01E

• When there is influence from a magnetic or electrical field: an increase of impedance

Step 1 : Keep the noise source as far away as possible.

2πr

2,400

I=2,400A

=400

A/m

Magnetic field strength

Example

r=1m

The influence of the external magnetic field on the measuring instrument: 400A/m or less.

3-31

3.8 Countering Noise

Step 2 : Change the position of the noise source.

A) Leakage magnetic flux of transformer:

Φ = strong

Φ = weak

Move the instrument to a location where the influence from magnetic flux is weak.

B) Sparks

spark

strong electromagnetic radiation

weak electrogmagnetic radiation

Move the instrument to a location where the influence from electromagnetic radiation is weak.

• Grounding: a decrease of impedance

The grounding method is the point of common mode noise suppression.

Equipment

under

measurement

(EUM) The instrument

3-32

ec ec'

The difference in the potential to the ground between EUM

and the instrument may cause a ground current, resulting in noise.

Equalize the potentials to the ground so

that the common mode noise becomes zero.

One-point grounding Potential equalization

EUM The instrument EUM The instrument

(if grounding is difficult)

The basic means to obtain stable measurement is to set the circuit potential with proper grounding. Thus, potential equalization is the means to be adopted only when grounding is impossible.

IM DR231-01E

3.8 Countering Noise

• Shielded and twisted pair (prevention of electromagnetic coupling): an increase of impedance

If it is difficult to keep the noise source away from the measuring instrument due to space limitations, the use of a shielded twisted pair is effective.

• electrostatic coupling can be completely cut off by shielding;

• for a magnetic field, shielding with a magnetic material (iron, permalloy, etc.) can be

employed. However, there are many restrictions on this use and perfect shielding is impossible. Therefore, use of a twisted pair is preferable.

Voltage e

induced by the coil is proportional to the area of the coil.

=> The smaller the area of the coil becomes, the smaller the noise becomes.

Coil

Magnetic field Φ

If the directions of coils 1 and 2 are reversed by twisting, as shown, if the areas of the two coils are equal, the induced voltages of the coils offset each other and total induced voltage em becomes zero.

coil 1 coil 2

The above two principles are combined as a twisted pair. Even though a shielded twisted pair is used, a proper grounding method is still important.

Signal

source

twisted pair shield

Connected equipment

Installation and Wiring

IM DR231-01E

If the signal source is not grounded

Signal

source

twisted pair shield

Connected equipment

Ground the signal cable shields collectively but separately from the power line ground. If the separation of grounds is impossible, use the guard terminal.

3-33

3.8 Countering Noise

• Insertion of noise filter and noise killer If the influence from noise cannot be eliminated by the methods described before, use noise filter or noise killer.

Power line noise rejection Step 1 : Insert an isolation transformer into the power line.

Increasing impedance to high frequency

Power supply

100V AC

1:1

The instrument

with shield, which is grounded

(Most of the noise is high-frequency noise)

Step 2 : Insert a power line noise filter (available on the market)

High frequency noise is divided by decreasing impedance to ground through C and

increasing impedance through L.

Power supply

100V AC

The instrument

Note 1: Ground the noise filter and the recorder in common. Note 2: Since insertion of a noise filter increases the by-pass current (regarded as leakage

current), make sure that the leakage current is within the specified value.

• When the noise contains wide frequency components While one-point grounding is effective at a low frequency, it sometimes forms a loop and

has an adverse effect on a high frequency.

Ex: Connecting a power meter and The instrument grounded at one point to an inverter

Noise source

(inverter, etc.)

The power meter leaks the high-frequency noise component to the ground and that noise flows back to the The instrument side.

Noise source

(inverter, etc.)

Reverse flow of high-frequency to the The instrument is thus suppressed.

AC power meter

The instrument

AC power meter

The instrument

(high impedance at high frequency)

High-frequency noise

(reverse flow)

Noise

blocking of reverse flow

Ferrite beads

One-point

grounding

• Input noise rejection If input noise cannot be rejected by means of one-point grounding or 100-ms integration,

insert capacitor or ferrite beads as they are effective in rejecting pulse noise.

Step 1 : Connect a capacitor between the L input and ground.

3-34

The instrument

Use a capacitor from a hundred to thousands of pF which can withstand high voltages and must be grounded.

Step 2 : Rejection of pulse noise when grounding is impossible.

Ferrite beads

Insert the ferrite beads as necessary.

The instrument

Use a capacitor from a hundred to thousands of pF.

IM DR231-01E

3.8 Countering Noise

• Relay noise suppression

• To prevent noise and protect the contact, connect the diode to the relay coil terminal directly.

• In addition to the above measure, reduce the rated voltage of the relay circuit as much as possible for higher reliability.

• It is necessary to choose a diode that matches the relay. Generally, a diode whose rated rectifying current is at least three times the current flowing through the relay coil must be used. And the rated reverse voltage must be at least three time the operating voltage.

(Note) Across the relay or solenoid coil, a counter-electromotive force is produced by an

inductive load. This phenomenon may damage the contact or, as the noise source, cause a malfunctioning of the equipment, and have an unfavorable effect on the entire system.

Dc external power supply

Contact

Diode

connect to the relay coil terminal (socket)

(

directly.

Relay

the relay coil rating must

(

be as low as possible.

)

Installation and Wiring

• If a relay contact is connectd to the input of the system components, apply the measure shown in the figure at the right to the relay coil. Otherwise, a counter electromotive force produced across the coil may be induced on the contact side through the relay's internal coupling or coupling between the lines, and may cause a malfunctioning of the equipment.

• Others (isolation from noise source: for hot line measurement)

(Hot line)

Power transistor

Anti-Noise Measures for PC Connection

When connecting the The instrument to a PC, it is recommended to apply ferrite cores (e.g. ZCAT3035-1303 from TDK) to the interface cable as a noise countering measure. Apply a ferrite core on both sides of the cable as shown below, when the noise persists, apply more ferrite cores.

Personal computer

Ferrite core

Surge suppresser circuit

connect to the relay socket

(

terminal directly.

C=0.01 to 1µF

Must withstand a voltage of at least three times

the operating voltage. R=0.3Re to 1Re

Re=Relay coil's DC resistance

At low temperatures

Wrap

(Vcc)

At high temperatures

Function grounding terminal

DR130 DR231/DR241

Personal computer

Mylar isolation film

Adhesive copper foil tape

Adhesion

Function grounding terminal

Ferrite core

)

IM DR231-01E

3-35

4.1 Using the AUTO Mode

D I S P M O D E

E S C

P R I N TF U N C

I N S D E L

R A N G E A L A R M

S E TC H A R T E N T E R

R E C O R D

F E E D

M. F U N C 1

M. F U N C 2

AUTO Mode for the Main Display

1 Select the main display using the DISP key. Direct the arrow mark on the Sub-display upward. 2 Select “AUT” using the MODE key.

Sub-display 1

003 0.0045V 004 0.0931V

AUT

AUTO Mode for Sub-display 1

1 Select sub-display 1 using the DISP key. Direct the arrow mark on the Sub-display leftward. 2 Select “AUT” using the MODE key.

Sub-display 1

004 0.0926V 005 0.0824V

AUT

AUTO Mode for Sub-display 2

1 Select sub-display 2 using the DISP key. Direct the arrow mark on the Sub-display downward. 2 Select “AUT” using the MODE key.

Sub-display 1

005 0.8210V 006 0.0095V

AUT

Setting the Monitor Mode Display

IM DR231-01E

4-1

)

4.1 Using the Auto mode

AUTO Mode for the Main Display

• Channel No.

The first seven characters are used. The first three characters are used to display the channel number. The first character always displays “0”. “A” will be displayed in the case of optional computation channels. If you selected TAG at the channel No./TAG setting in the set-up mode (refer to 10.2 on page 10-4), the assigned tag will appear for each channel.

• The first 7 characters of the TAG setting will be displayed;

• If the TAG setting consists of only spaces, the channel number will be displayed instead;

• If the first character of the TAG setting is a space, the 2nd to 8th character will be displayed.

• Difference between Channels (delta)

One character is used to let you know that difference between channels (delta) is displayed. However, it will not be displayed in the case of optional computation channels. Only if you selected the difference between channels (delta) as the input type, “d” will be displayed here.

• Alarms

Two characters are used for displaying alarms. One characters is used in the case of optional computation channels. When an alarm occurs, the kind of alarm will be displayed. When in one channel several alarms occur at the same time, the priority of display becomes H > L > dH > dL > RH > RL. For details on H, L, dH, dL, RH and RL alarms, refer to page 8-2.

• Measurement Values

Seven characters are used for displaying the measurement values. The decimal point uses up one character. Nine characters is used in the case of optional computation channels. When a measurement value does not reach the following value, “–

” will be displayed.

*****

• DC voltage: a minimum value of the measuring range – (max. value – min. value)× 0.05

• TC/RTD: min. value of the measurement range –10°C

• Linear scaling: –32000, or a minimum value of the recording span – (max. value – min.

value) × 0.05

When a measurement value exceeds the following value, “+

” will be displayed.

*****

• DC voltage: a maximum value of the measuring range + (max. value – min. value)× 0.05

• TC/RTD: min. value of the measurement range +10°C

• Linear scaling: +32000, or a maximum value of the recording span + (max. value – min.

value) × 0.05

If the input module is not connected properly, “ XXXXXX” will be displayed. While waiting for an input signal “ OOOOOO” will be displayed.

• Engineering Units

If the channel number has been selected to appear on the display, six characters are used for displaying engineering units. If TAG has been selected to appear on the display, only three characters are used for displaying units. Only the first three characters of the unit setting will then be displayed, even if the first character of the unit setting is a space. When “ XXXXXX” or “ OOOOOO” are displayed as measurement value, no engineering unit will be displayed.

001

Difference between channels

Channel No. 1st digit : unit No. (fixed to 0. A will be displayed in the case of optional computation channels.) 2nd digit : slot No. (depending on the number of modules : 0-1, 0-2, 0-3)

it : channel No. (in units of 1

3rd di

Alarm

V0.0467 H d

Engineering unit

Measurement value

• Others

If you selected “SKIP” as the input type, that channel will not be displayed. When the input type of all channels is set to “SKIP”, “***ALL SKIP***” will be displayed.

4-2

IM DR231-01E

4.1 Using the Auto mode

AUTO Mode for Sub-display 1

Data of two channels are displayed here simultaneously.

• Channel No., Difference between Channels (delta), Alarms, Measurement Values

Same as for the main display.

• Engineering Units

If the channel number has been selected to appear on the display, the first four characters of the unit setting are used for displaying engineering units. If TAG has been selected to appear on the display or when “ XXXXXX” or “ OOOOOO” are displayed as measurement value, no engineering unit will be displayed.

• Selected Display Mode (refer to page 4-1 for procedure)

This only appears on sub-display 1 when monitoring. The arrow shows to which display the display mode refers.

004d L 0.0926V 005 0.0824V

Engineering unit

Measurement value

Alarm

Difference between channels

Channel No. 1st digit : unit No. (fixed to 0) 2nd digit : slot No. (depending on the number of modules : 0-1, 0-2, 0-3) 3rd digit : channel No. (in units of 1)

AUT

Selected display mode

• Others

Same as for the main unit.

AUTO Mode for Sub-display 2

Data of two channels are displayed here simultaneously.

• Channel No., Difference between Channels (delta), Alarms, Measurement Values, Engineering Units and Selected Display Mode

Same as for the sub-display 1.

• Others

Same as for the sub-display 1.

Points to Note when Using the AUTO Mode

• When all three displays are set to AUTO mode, the main display will start displaying data of the channel with the smallest channel number, on sub-display 1 data of the next two channels will be displayed, while on sub-display 2 data of the next two channels will be displayed. When the data are updated, the display will be replaced with data of the next, consecutive, channel.

• When the input type of all channels is set to “SKIP”, then depending on the display settings as described below, “***ALL SKIP***” will be displayed.

• When the main display is set to AUTO mode, then this will be displayed on the main display, regardless of the settings of sub-display 1 and 2.

• When sub-display 1 is set to AUTO mode, and the main display is set to any other mode than AUTO, then this will be displayed on sub-display 1, regardless the setting of subdisplay 2.

• When sub-display 2 is set to AUTO mode, and the main display is set to any other mode than AUTO, and sub-display 1 to any other mode than AUTO, then this will be displayed on sub-display 2.

• When on any of the main, sub-display1 or sub-display 2 “***ALL SKIP***” appears, other displays which may have been set to AUTO will turn blank. Only the selected display mode on sub-display 1 and the status display will appear.

Setting the Monitor Mode Display

IM DR231-01E

4-3

4.2 Using the MANUAL Display

D I S P

M O D E

E S C

P R I N TF U N C

I N S D E L

R A N G E A L A R M

S E TC H A R T E N T E R

MANUAL Display for the Main Display

1 Select the main display using the DISP key. 2 Select “MAN” using the MODE key.

Sub-display 1

002 0.0034V 003 0.0920V

3 Select the required channel using the keys.

Main display

001

V0.0057

MANUAL Display for Sub-display 1

1 Select sub-display 1 using the DISP key. 2 Select “MAN” using the MODE key.

Sub-display 1

002 0.0422V 003 0.0726V

R E C O R D

F E E D

M. F U N C 1

M. F U N C 2

MAN

3 Select the right or left channel using the keys. A dash [—] will appear below the unit

number of the selected channel.

4 Select the required channel using the

keys.

Sub-display 1

006 0.0892V 003 0.0726V

MAN

MANUAL Display for Sub-display 2

1 Select sub-display 2 using the DISP key. 2 Select “MAN” using the MODE key.

Sub-display 1

005 0.0931V 006 0.0092V

MAN

3 Select the right or left channel using the keys. A dash [—] will appear below the unit

number of the selected channel.

4 Select the required channel using the

keys.

Sub-display 2

009 1.0075V 008 0.0154V

4-4

IM DR231-01E

4.2 Using the MANUAL Display

MANUAL Display for the Main Display

• Channel No., Difference between Channels (delta) and Alarms

Same as for the AUTO mode (refer to page 4-2).

• Measurement Values

Same as for the AUTO mode (refer to page 4-2), except for the following. When the input type of the channel is set to “SKIP”, then “SKIP” will be displayed. When the channel other than the channel of the input module is selected, “- - - - - -” appears.

• Engineering Units

Same as for the AUTO mode (refer to page 4-2), except for the following. When the input type of the channel is set to “SKIP”, then no engineering unit will be displayed.

MANUAL Display for the Sub-display 1 and 2

Data of two channels are displayed here simultaneously on each display.

• Channel No., Difference between Channels (delta), Alarms and Selected Display Mode

Same as for the AUTO mode (refer to page 4-3).

• Measurement Values

Same as for the AUTO mode (refer to page 4-3), except for the following. When the input type of the channel is set to “SKIP”, then “SKIP” will be displayed. When the channel other than the channel of the input module is selected, “- - - - - -” appears.

• Engineering Units

Same as for the AUTO mode (refer to page 4-3), except for the following. When the input type of the channel is set to “SKIP”, then no engineering unit will be displayed.

Setting the Monitor Mode Display

IM DR231-01E

4-5

4.3 Using the PAGE Display

D I S P

M O D E

E S C

P R I N TF U N C

I N S D E L

R A N G E A L A R M

S E TC H A R T E N T E R

R E C O R D

F E E D

M. F U N C 1

M. F U N C 2

1 Select the main display using the DISP key. 2 Select “PGE” using the MODE key.

Sub-display 1

002 0.1936V 003 0.0995V

PGE

3 Select the required set of five channels (page) using the keys.

Display

006

007 0.0197V 008 0.0074V

V0.0173

PGE

009 0.0162V 010 0.0102V

PAGE Display for the Main Display

When this display is selected, the measurement values of five consecutive channels will be displayed using sub-display 1 and 2 also.

• Channel No., Difference between Channels (delta) and Alarms

Same as for the AUTO mode (refer to page 4-2).

• Measurement Values

• Engineering Units

Same as for the AUTO mode (refer to page 4-2), except for the following. When the input type of the channel is set to “SKIP”, then no engineering unit will be displayed.

PAGE Display for the Sub-display 1 and 2

In combination with the page display of the main display, data of two channels are displayed here simultaneously on each display. Other display modes cannot be selected.

• Channel No., Difference between Channels (delta), Alarms and Selected Display Mode

Same as for the AUTO mode (refer to page 4-3).

• Measurement Values

• Engineering Units

Same as for the AUTO mode (refer to page 4-3), except for the following. When the input type of the channel is set to “SKIP”, then no engineering unit will be displayed.

4-6

IM DR231-01E

4.4 Using the ALARM SEARCH Display

D I S P

M O D E

E S C

P R I N TF U N C

I N S D E L

R A N G E A L A R M

S E TC H A R T E N T E R

ALARM SEARCH Display for the Main Display

1 Select the main display using the DISP key. 2 Select “SER” using the MODE key.

Sub-display 1

003 0.0054V 004 0.0319V

ALARM SEARCH Display for Sub-display 1

1 Select sub-display 1 using the DISP key. 2 Select “SER” using the MODE key.

Sub-display 1

004 H 0.0269V 005 RH 0.0248V

ALARM SEARCH Display for Sub-display 2

1 Select sub-display 2 using the DISP key. 2 Select “SER” using the MODE key.

Sub-display 1

005 0.2108V 006 0.0951V

R E C O R D

F E E D

M. F U N C 1

M. F U N C 2

SER

Setting the Monitor Mode Display

ALARM SEARCH Display for the Main Display

Only the channels in which an alarm occurred, will be displayed. When an alarm occurs in several channels, the channels will be displayed consecutively.

• Channel No., Difference between Channels (delta), Alarms, Measurement Values and Engineering Units

Same as for the AUTO mode (refer to page 4-2).

• Others

When the input types of all channels are set to “SKIP” or no alarms occur, “***NO ALARM***” will be displayed.

ALARM SEARCH Display for the Sub-display 1 and 2

Only the channels in which an alarm occurred, will be displayed. Two channels will be displayed on each sub-display.

• Channel No., Difference between Channels (delta), Alarms, Measurement Values, Engineering Units and Selected Display Mode

Same as for the AUTO mode (refer to page 4-3).

IM DR231-01E

4-7

4.4 Using the ALARM SEARCH Display

Points to Note when Using the ALARM SEARCH Display

• When all three displays are set to ALARM SEARCH display, the main display will start displaying data of the channel with the smallest channel number, on sub-display 1 data of the next two channels will be displayed, while on sub-display 2 data of the next two channels will be displayed. When the data are updated, the display will be replaced with data of the next, consecutive, channel.

• When the input type of all channels is set to “SKIP”, then depending on the display settings as described below, “***NO ALARM***” will be displayed.

• When the main display is set to ALARM SEARCH display, then this will be displayed on the main display, regardless the settings of sub-display 1 and 2.

• When sub-display 1 is set to ALARM SEARCH display, and the main display is set to any other mode than ALARM SEARCH, then this will be displayed on sub-display 1, regardless the setting of sub-display 2.

• When sub-display 2 is set to ALARM SEARCH display, and the main display is set to any other mode than ALARM SEARCH, and sub-display 1 to any other mode than ALARM SEARCH, then this will be displayed on sub-display 2.

• When on any of the main, sub-display1 or sub-display 2 “***NO ALARM***” appears, other displays which may have been set to ALARM SEARCH will turn blank. Only the selected display mode on sub-display 1 and the status display on sub-display 2 will appear.

4-8

IM DR231-01E

4.5 Using the BARGRAPH Display

M O D E

D I S P

E S C

P R I N TF U N C

I N S D E L

R A N G E A L A R M

R E C O R D

F E E D

M. F U N C 1

S E TC H A R T E N T E R

M. F U N C 2

1 Select the sub-display 1 using the DISP key. 2 Select “BAR” using the MODE key.

Display

003

- 1.5000> < 2.0000

V0.0172

BAR

004 0.0153V 005 0.0123V

Bargraph Display

Sub-display 1 can be turned into a bargraph display. The measurement data on the main display are displayed as a bargraph on sub-display 1. The bargraph shows a graph corresponding to the measurement value, showing the recording span divided into 40 equal parts. The left side of the bargraph shows the left span, the right side of the bargraph shows the right span. When you are using the linear scaling function, the left and right side of the bargraph show the left scaling and right scaling value respectively. Engineering units are not displayed. When the main display shows “SKIP”, “***ALL SKIP***”, “NO ALARM”, “OOOOOO”, “XXXXXX”, or “- - - - - -” the bargraph will not appear. Only the selected display mode will appear.

Setting the Monitor Mode Display

IM DR231-01E

4-9

4.6 Using the ALARM STATUS Display

M O D E

D I S P

E S C

P R I N TF U N C

I N S D E L

R A N G E A L A R M

R E C O R D

F E E D

M. F U N C 1

S E TC H A R T E N T E R

M. F U N C 2

ALARM STATUS Display for Sub-display 1

1 Select the sub-display 1 using the DISP key. 2 Select “ALM” using the MODE key.

Sub-display 1

001

3 Select the range to be displayed in blocks of 10 channels.

Sub-display 1

011

ALARM STATUS Display for Sub-display 2

1 Select the sub-display 2 using the DISP key. 2 Select “ALM” using the MODE key.

Sub-display 1 and 2

001 001

3 Select the range to be displayed in blocks of 10 channels.

Sub-display 1 and 2

001 011

ALM

Alarm Status Display

The status of alarms can be displayed on sub-display 1 and 2. On each sub-display the alarms of maximum 30 channels can be monitored which also depends on the number of input channels. The display shows “■” for channels where no alarm has occurred, and shows “■” for channels where an alarm has occurred. The relation between the alarm status display and channel number is as shown below. The first character of the setting is always “0”.

001

Channel 21

Channel 12 Channel 11

Channel 10 Alarm status of channel 3 Alarm status of channel 2 Alarm status of channel 1

Channel No. (fixed to 1 in units of 1) Slot No. (depending on the number of modules : 0-1, 0-2, 0-3) Unit No. (fixed to 0. A will be displayed in the case of optional computation channels.)

Channel 20

Channel 30

021

Alarm status of channel 22 Alarm status of channel 21

Channel 30

4-10

IM DR231-01E

4.7 Using the RELAY STATUS Display

D I S P

M O D E

E S C

P R I N TF U N C

I N S D E L

R A N G E A L A R M

R E C O R D

F E E D

M. F U N C 1

S E TC H A R T E N T E R

M. F U N C 2

RELAY STATUS Display for Sub-display 1

1 Select the sub-display 1 using the DISP key. 2 Select “RLY” using the MODE key.

Sub-display 1

S01

3 Select the range to be displayed in blocks of 10 channels.

Sub-display 1

S11

RELAY STATUS Display for Sub-display 2

1 Select the sub-display 2 using the DISP key. 2 Select “RLY” using the MODE key.

Sub-display 1 and 2

S01 S01

3 Select the range to be displayed in blocks of 10 channels.

Sub-display 1 and 2

S01 031

RLY

Setting the Monitor Mode Display

Relay Status Display

The status of relays can be displayed on sub-display 1 and 2. On each display the status of maximum 30 relays can be monitored. The display shows “■” for relays which are currently not operated by internal switch/alarm output relay, and shows “■” for relays which are currently operated by internal switch/alarm output relay.

IM DR231-01E

4-11

4.7 Using the RELAY STATUS Display

Relation between the Relay Status and Internal Switch

If the relay status of the internal switches is being displayed, an “S” will be displayed as the first character. The next two characters show the number of the internal switch which corresponds to the first batch of the display and range from 01 to 51. There are 60 internal switches.

S01

Internal switch 12 Internal switch 11

Relay status of internal switch 3 Relay status of internal switch 2 Relay status of internal switch 1

Internal switch no. in units of 1 (fixed to 1) Tens of internal switch no. (0 to 5) Internal switch (S)

Internal switch 10

Internal switch 21

Internal switch 20

Internal switch 30

Relation between the Relay Status and Alarm Output Relay (optional)

If the relay status of the alarm output relays is being displayed, a “0” will be displayed as the first character. The next character shows the slot number at which the alarm module (/A4 option) or DI/DO module (/R1 option) is connected. This number depends on the number of input channels and whether or not the communication interface option is present. The display of the relay status for the alarm output relays depends on the installed options and is as follows.

• When the alarm module is installed (/A4 option), 10 indicators are reserved for “■ ” or “■” display.

• When the DI/DO module is installed (/R1 option), 10 indicators are reserved for “■ ” or “■” display, although the alarm output relays correspond to the first two indicators on the left, whereas the other eight indicators are not used.

• When both the alarm module and the DI/DO module are connected, 20 indicators are reserved for “■” or “■” display. The left 10 indicators are used for displaying the status of alarm output relays for the alarm module, whereas the right 10 indicators are used for displaying the status of the alarm output relays for the DI/DO module. In this case the first two indicators of the second batch correspond to the alarm output relays, whereas the other eight are not used.

Display for alarm module

011

Relay status of alarm output relay 13 Relay status of alarm output relay 12 Relay status of alarm output relay 11

Alarm relay No. (in units of 1) Slot No. (fixed to 1) Unit No. (fixed to 0)

Display for DI/DO module

Alarm relay 22 Alarm relay 21

Alarm relay 20

Not used

4-12

IM DR231-01E

4.8 Using the CLOCK (Date & Time) Display

M O D E

D I S P

E S C

P R I N TF U N C

I N S D E L

R A N G E A L A R M

R E C O R D

F E E D

M. F U N C 1

S E TC H A R T E N T E R

M. F U N C 2

1 Select the sub-display 2 using the DISP key. 2 Select “CLK” using the MODE key.

Sub-display 1 and 2

005 0.8210V 006 0.0095V

CLK

Dec. 30. 95 13:16:19

Clock Display

The date and time can be displayed on sub-display 2. According to the set time in 3.7 “Setting the Date and Time” (see to page 3-19), the current date and time can be displayed. The display shows the month, day, year and hour, minute, second in this sequence.

Setting the Monitor Mode Display

IM DR231-01E

4-13

5.1 Setting the Type of Input and Recording Span

RECORD

ALARM

CHART

KEYLOCK

(Mai

)

001-10:VOLT/2V

SPAN=–2.0000/ 2.0000V

SKIP VOLT TC RTD DI DELTA SCL

• Press the RANGE key to enter the RANGE menu.

• Select/set

• To escape from a lower menu, press the MODE (ESC) key. Its main menu will appear,

although new settings/selections will not be kept.

• New settings/selections will be kept when you reach the final display of that setting.

n menu

001-01:VOLT/2V

>Select Channel No.

001-01:VOLT/2V

>Select Channel No.

using the keys.

(Lower menu)

001-01:VOLT/2V

20mV 60mV 200mV 2V 6V 20V 50V

SPAN=–2.0000/_2.0000V

>Span limit(–2.0000~2.0000V)

***SET OK***

001-01:SKIP

ENTER

ESC

ENTER

D I S P M O D E

E S C

P R I N TF U N C

I N S D E L

R A N G E A L A R M

S E TC H A R T E N T E R

R E C O R D

F E E D

M. F U N C 1

M. F U N C 2

Setting the Input Type/Recording Span/Linear Scaling

***SET OK***

ESC

001-01:TC/R

R S B K E J T N W L U KP

SPAN=_ _ _ _0.0/1760.0˚C

>Span limit(0.0~1760.0˚C)

***SET OK***

ENTER

ESC

001-01:RTD/PT1

PT1 PT2 JPT1 JPT2 PT50 NI1 NI2 NI3 CU1 CU2 CU3 CU4 PT1S PT2S JPT1S JPT2S J263B

SPAN=–_200.0/_ _600.0˚C

>Span limit(–200.0~600.0˚C)

***SET OK***

To the next page

ENTER

ESC

IM DR231-01E

5-1

5.1 Setting the Type of Input and Recording Span

From the previous page

001-01:DI/LEVL

ENTER

ESC

001-01:DI/LEVL

LEVL CONT

SPAN=

>Span limit(0~1)

_ _ _ _ _ _0/_ _ _ _ _ _

***SET OK***

002-02:DELTA/REF Ch=01

>Select Channel No.

SPAN= -2.0000/_2.0000V

>Span limit(-2.0000~2.0000V)

***SET OK***

ENTER

ESC

002-02:RRJC/RJC Ch=01

>Select Channel No.

SPAN= 0.0/1760.0˚C

>Span limit(0.0~1760.0˚C)

***SET OK***

Setting the Channel No.

This setting specifies the channels to which the type of input and recording span applies. You can set a range of channels by specifying the first (begin) and the last channel (end).

ENTER

ESC

First Channel No. (Begin)

The first three characters on the main display show the number of the first channel to which settings apply. Default is “001”, and the first character is always “0”. The setting ranges from 001 to the maximum number of input channels of your unit (010 for 10 input channels; 020 for 20 input channels; 030 for 30 input channels).

Last Channel No. (End)

The two characters following the first channel number show the number of the last channel to which settings apply. Default is “01”. The setting ranges from 01 to the maximum number of input channels of your unit. The number of the last channel cannot be smaller than the number of the first channel. When both channel numbers are equal, settings will only apply to that particular channel. When you have set the first channel number and you move the cursor to the last channel setting, the channel number of the first channel setting will appear here.

5-2

IM DR231-01E

5.1 Setting the Type of Input and Recording Span

Selecting the Type of Input

The following types of input can be selected. The default setting is VOLT.

• SKIP Measurement, recording and display (except for page display) will not be carried out. Measurement, recording and display will be carried out for the next channel whose input type is not set to SKIP.

• VOLT (DC voltage) This input type can be selected from 20mV, 60mV, 200mV, 2V, 6V, 20V and 50V. Refer to chapter 14 for the measurement range of each setting. The default setting is 2V.

• TC (thermocouple) This input type can be selected from R, S, B, K, E, J, T, N, W, L, U and KP (KPvsAU7Fe). Refer to chapter 14 for the measurement range of each setting. The default setting is R.

• RTD (resistance temperature detector) This input type can be selected from PT1 (Pt100 1mA), PT2 (Pt100 2mA), JPT1 (JPt100 1mA), JPT2 (JPt100 2mA), PT50 (Pt50 2mA), NI1 (Ni100 1mA SAMA), NI2 (Ni100 1mA DIN), NI3 (Ni120 1mA), CU1 (Cu10 GE), CU2 (Cu10 L&N), CU3 (Cu10 WEED), CU4 (Cu10 BAILEY), PT1S (Pt100 1mA high resolution), PT2S (Pt100 2mA high resolution), JPT1S (JPt100 1mA high resolution), JPT2S (JPt100 2mA high resolution) and J263B (J263*B). Refer to chapter 14 for the measurement range of each setting. The default setting is PT1.

• DI (voltage level: LEVL; contact:CONT) This input type can be selected from LEVL and CONT. In case of LEVL, a voltage of less than approx. 2.4 V will be recognized as “0 (OFF)”, whereas a voltage of approx. 2.4V or more (max. allowable voltage is up to ±60 VDC) will be recognized as “1 (ON)”. In case of CONT, an open, externally connected contact to which no voltage is applied, will be recognized as “0 (OFF)”, whereas a closed contact will be recognized as “1 (ON)”. The default setting is LEVL.

• DELTA (difference between channels) Destination channels should lie within the first channel No. to the last channel No. range. The number of the reference channel should be lower than the number of the distination channels. The default setting for the reference channel is 01. The type of input and the measuring range in the distination channel are the same as for the reference channel. After setting the DELTA (difference between channels), if you attempted to change the rype of input and the measuring range, setting the difference between channels is released, thereby the type of input and the measuring range in the destination channel are returned to their original settings, and the recording span is returned to its initial value.

• RRJC (Remote RJC, available if the instrument is equipped with the optional MATH function) Reference channel (RJC): Within the setting range of reference channel No. TC (thermocouple) must be selected as the type of input to the reference channel. If the channel No. or type of input for the reference channel, or the type of thermocouple is changed, the alarm and partial compression recording functions will be turned OFF. If the type of input for the reference channel or the type of thermocouple is changed, the RRJC settings will be cleared and the type of input and measuring range for the reference channel will be set to the one which was in effect before the change was made. The recording span will be set to the initial value of the measuring range.

Setting the Input Type/Recording Span/Linear Scaling

IM DR231-01E

Setting the Recording Span

The measurement range is decided according to the type of input. The recording left and right span must lie within the measurement range. However, the recording span is 0 to 1 for the DI input type. The value on the left side of the SPAN menu shows the left span, and the value on the right side of the SPAN menu shows the right span. For the remote RJC, the setting range for recording span is the same as that for the reference channel.

5-3

5.2 Setting Linear Scaling and the Recording Span

RECORD

ALARM

CHART

KEYLOCK

001-10:SCL:VOLT/2V

SKIP VOLT TC RTD DI DELTA SCL

• Press the RANGE key to enter the RANGE menu.

• Select/set

• To escape from a lower menu, press the MODE (ESC) key. Its main menu will appear,

although new settings/selections will not be kept.

• New settings/selections will be kept when you reach the final display of that setting.

(Main menu)

001-01:VOLT/2V

>Select Channel No.

001-01:VOLT/2V

>Select Channel No.

(Lower menu)

001-01:VOLT/2V

001-01:SCL:VOLT/2V

20mV 60mV 200mV 2V 6V 20V 50V

using the keys.

ENTER

D I S P M O D E

E S C

P R I N TF U N C

I N S D E L

R A N G E A L A R M

S E TC H A R T E N T E R

R E C O R D

F E E D

M. F U N C 1

M. F U N C 2

SPAN=–2.0000/_2.0000V

>Span limit(–2.0000~2.0000V)

SCL=_ _ _0.00/_100.00

***SET OK***

001-01:SCL:TC/R

R S B K E J T N W L U KP

SPAN=_ _ _ _0.0/_1760.0˚C

>Span limit(0.0~1760.0˚C)

SCL=_ _ _0.00/_100.00

***SET OK***

To the next page

ENTER

ESC

ENTER

ESC

5-4

IM DR231-01E

From the previous page

001-01:SCL:RTD/PT1

5.2 Setting Linear Scaling and the Recording Span

001-01:SCL:RTD/PT1

PT1 PT2 JPT1 JPT2 PT50 NI1 NI2 NI3 CU1 CU2 CU3 CU4 PT1S PT2S JPT1S JPT2S J263B

SPAN=–_200.0/_ _600.0˚C

>Span limit(–200.0~600.0˚C)

SCL=_ _ _0.00/_100.00

***SET OK***

ENTER

ESC

001-01:SCL:DI/LEVL

ENTER

ESC

001-01:SCL:DI/LEVL

LEVL CONT

SPAN=

>Span limit(0~1)

_ _ _ _ _ _0/_ _ _ _ _ _

SCL=_ _ _0.00/_100.00

***SET OK***

The setting of the channel number is the same as explained in 5.1 on page 5-2. The following explanation assumes that you already carried out the channel setting and that you selected “SCL” as the input type.

Setting the Input Type/Recording Span/Linear Scaling

Selecting the Input Type for Linear Scaling

The input type can be selected from the following. The default setting is VOLT.

• VOLT (DC voltage)

Refer to page 5-3.

• TC (thermocouple)

Refer to page 5-3.

• RTD (resistance temperature detector)

Refer to page 5-3.

• DI (contact)

Refer to page 5-3.

Setting the Recording Span

Refer to page 5-3.

Setting the Scaling Values (SCL)

The left scaling and right scaling values are set following the left and right span values of the span menu. The value on the left side of the SCL menu shows the left scaling value, and the value on the right side of the SCL menu shows the right scaling menu. The setting ranges from -30000 to

30000.

The decimal point can be set in any position of the scale as shown below. Set it when the left scale is set. "

. ," " . ," " . ," " . ," or " ."

• The default settings are 0.00 for the left span and 100.00 for the right span.

For details on setting the engineering units for linear scaling, refer to page 6-2.

IM DR231-01E

5-5

5.3 Configuring the Input Range and Recording

RECORD

ALARM

CHART

KEYLOCK

Span or the Linear Scaling of a Power Monitoring Channel

001-01:AC/1Ph3W

RNG=250-5A/ V1 002:VA1

SPAN= - 1250 / 1250W

• Press the RANGE key to enter the RANGE menu.

• Using and , select and/or enter a value for each of the shaded fields shown below.

• To exit any of the following menu items during the procedure, press the MODE (ESC) key.

This returns to the first item of the menu. Note, however, that your new settings and selections are canceled.

• Reaching the step showing the message “***SET OK***” confirms the latest settings/ selections.

Setting the Measuring Range and Recording Span

(Main menu item)

001-01:AC/1Ph3W

SKIP AC SCALE

001-01:AC/1Ph3W

1Ph2W 1Ph3W 3Ph3W-2I 3Ph3W-3I 3Ph4W

RNG= 250V - 5A/P1

250V-0.5A 250V-5A 25V-0.5A 25V-5A

ENTER

D I S P M O D E

E S C

P R I N TF U N C

I N S D E L

R A N G E A L A R M

S E TC H A R T E N T E R

R E C O R D

F E E D

M. F U N C 1

M. F U N C 2

RNG= 250V - 5A/P1

P1 P3 P13

SPAN= - 125.0/125.0W

>Span Limit (- 125.0 to 125.0W)

***SET OK***(configuration complete)

Setting Linear Scaling

(Main menu item)

001-01:AC/1Ph3W

>Select Channel No.

001-01:AC/1Ph3W

>Select Channel No.

ENTER

ESC

(Submenu items)

001-01:AC/1Ph3W

001-01:SCL:AC/1Ph3W

2k 20k 200k

RNG=250V-0.5A/P13

250V-0.5A 250V-5A 25V-0.5A 25V-5A

RNG=250V-0.5A/P13

P1 P2 P3 P13

SPAN=–125.0/125.0W

>Span limit(–125.0 to 125.0W)

(Press twice)

ENTER

5-6

SCL=0.00/100.00

***SET OK***

(configuration complete)

ENTER

ESC

IM DR231-01E

5.3 Configuring the Input Range and Recording Span or the Linear Scaling of a Power Monitoring Channel

Setting the Channel Number

This procedure sets the channel number for which you want to show and record the values of a parameter selected from the effective voltage, effective current, active power, reactive power, apparent power, frequency, power factor and phase angle which were calculated using the measured data. Therefore, it does not correlate with the terminals of an input module. In this procedure, determine from which channel (starting channel) to which channel (ending channel) you want to include in your configuration.

Starting Channel Number

The first three digits on the main display constitute the starting channel number.

• The first digit is the unit number. The second digit denotes the module number (slot number).

• The configurable range depends on the location where the power monitor module is connected.

See page 3-8 for more information.

Ending Channel Number

The two digits that follow the starting channel number constitute the ending channel number. Normally, the starting channel number and the ending channel number should be the same. If you want to skip any consecutive number of channels, enter the range of those channel numbers.

• When you move the cursor from the starting to the ending channel number, the ending channel number becomes the same as the last two digits of the starting channel number.

Setting the Wiring Method

Select from the following methods:

Single-phase two-wire (1Ph2W) Single-phase three-wire (1Ph3W; three-wire input modules only) Three-phase three-wire 2 Voltage 2 Current (3Ph3W-2I; three-wire input modules only) Three-phase three-wire 3 Voltage 3 Current (3 Ph3W-3I; three-wire input module only) Three-phase four-wire (3Ph4W; three-wire input modules only)

Setting the Input Range

Select from the following ranges:

250V-0.5A 250V-5A 25V-0.5A 25V-5A

This setting is common to all channels. Any change to this setting also changes the settings of the rest of the channels. Impose a voltage or current signal to the input module within the limits you set here.

Setting the Parameter Being Shown and Recorded

A power monitor module measures the voltage or current through the respective channels. The values that are shown and recorded are not those of the voltage and current being actually measured through each channel but the values of the parameters you set here. A combination of parameters being measured is fixed for each group of channels 1-2, 3-4 and 5-6 within the same module. For example, setting channel 1 to P1 (active power 1) sets channel 2 to VA1 (apparent power 1). In addition, the configurable parameters being measured varies depending on the wiring method selected. See the lists on the next page for more information. The respective mnemonics in the lists should be interpreted as noted below:

Vi (i=1, 2, 3) : effective voltage Ii (i=1, 2, 3) : effective current V13 : (V1+V3)/2 I13 : (I1+L3)/2 V0 : (V1+V2+V3)/3 I0 : (I1+I2+I3)/3 Pi (i=1, 2, 3) : active power Vari (i=1, 2, 3) : reactive power P13 : P1+P3 Var13 : PF1+PF3 P0 : P1+P2+P3 Var 0 : Var1+Var2+Var3 VAi (i=1, 2, 3) : apparent power PFi (i=1, 2, 3) : power factor VA13 : VA1+VA3 PF13 : P13/(P13 VA0 : VA1+VA2+VA3 PF0 : P0/(P0

+Var02)

+Var132)

1/2

=P0/VA0

=P13/VA13

PHi (i=1, 2, 3) : phase FREQ : frequency PH13 : tan PH0 : tan

–1

(Var13/P13)

–1

(Var0/P0)

Setting the Input Type/Recording Span/Linear Scaling

IM DR231-01E

5-7

5.3 Configuring the Input Range and Recording Span or the Linear Scaling of a Power Monitoring Channel

Single-phase two-wire configuration

CH1

CH2 VA1

CH3

CH4

CH5 PF1

Var1

FREQ

CH6 PH1

PF1

Select from these combinations.

Single-phase three-wire/three-phase three-wire configurations (dual-voltage, dual-current; modules for three-phase use only)

CH1

P1 P3

P13

CH2 VA1 VA3

VA13

CH3

V1 V3

CH4

I1 I3

CH5 PF1 PF3

PF13

V1 V3

V13

FREQ

Var1 Var3

Var13

CH6 PH1 PH3

PH13

I1 I3

I13

V1 PF1 PF3

PF13

Select from these combinations.

Three-phase three-wire configuration (triple-voltage, triple-current; modules for three-phase use only)

CH1

P1 P2 P3

P13

V0 V1 V2 V3

CH2 VA1 VA2 VA3

VA13

I0 I1 I2 I3

CH3

V1 V2 V3

CH4

I1 I2 I3

CH5 PF1 PF2 PF3

PF13

V1 V2 V3

V13

FREQ

Var1 Var2 Var3

Var13

V1 V2 V3

CH6 PH1 PH2 PH3

PH13

I1 I2 I3

I13

V1 PF1 PF2 PF3

PF13

I1 I2 I3

Select from either of the two groups of combinations.

Three-phase four-wire configuration (modules for three-phase use only)

CH1

P0 P1 P2 P3

V0 V1 V2 V3

CH2 VA0 VA1 VA2 VA3

I0 I1 I2 I3

CH3

V1 V2 V3 P0 P1 P2 P3

V1 V2 V3

CH4

I1 I2

I3 VA0 VA1 VA2 VA3

CH5

PF0 PF1 PF2 PF3

V1 V2 V3

FREQ

Var0 Var1 Var2 Var3

P0 P1 P2 P3

V1 V2 V3

CH6 PH0 PH1 PH2 PH3

I1 I2 I3

V1 PF0 PF1 PF2 PF3 VA0 VA1 VA2 VA3

I1 I2 I3

Select from either of the two groups of combinations.

5-8

IM DR231-01E

5.3 Configuring the Input Range and Recording Span or the Linear Scaling of a Power Monitoring Channel

Setting the Recording Span (SPAN)

Set the left and right spans within the limits of an input range. In the SPAN menu item, the lefthand value is the left span and the right-hand value the right span. Set the recording span within the measuring range. The measurable limits vary depending on the measuring range you select, as shown below.

25V-0.5A 25V-5A 250V-0.5A 250V-5A

Effective voltage 0.00 to 25.00V rms 0.00 to 25.00V rms 0.0 to 250.0V rms 0.0 to 250.0V rms Vi (i=1,2,3,13,0)

Effective current Ii (i=1,2,3,13,0)

Active power –12.50 to 12.50W –125.0 to 125.0W –125.0 to 125.0W –1250 to 1250W P1,P2,P3

Active power –25.00 to 25.00W –250.0 to 250.0W –250.0 to 250.0W –2500 to 2500W P13

Active power –37.50 to 37.50W –375.0 to 375.0W –375.0 to 375.0W –3750 to 3750W P0

Apparent power 0.00 to 12.50VA 0.0 to 125.0VA 0.0 to 125.0VA 0 to 1250VA VA1,VA2,VA3

Apparent power 0.00 to 25.00VA 0.0 to 250.0VA 0.0 to 250.0VA 0 to 2500VA VA13

Apparent power 0.00 to 37.50VA 0.0 to 375.0VA 0.0 to 375.0VA 0 to 3750VA VA0

Reactive power 0.00 to 12.50Var 0.0 to 125.0Var 0.0 to 125.0Var 0 to 1250Var Var1,Var2,Var3

Reactive power 0.00 to 25.00Var 0.0 to 250.0Var 0.0 to 250.0Var 0 to 2500Var Var13

Reactive power 0.00 to 37.50Var 0.0 to 375.0Var 0.0 to 375.0Var 0 to 3750Var Var0

Power factor –1.00 to 1.00 –1.00 to 1.00 –1.00 to 1.00 –1.00 to 1.00 PFi(i=1,2,3,13,0)

Phase –80.0 to 80.0deg –80.0 to 80.0deg –80.0 to 80.0deg –80.0 to 80.0deg PHi(i=1,2,3,13,0)

Frequency 45.00 to 65.00Hz 45.00 to 65.00Hz 45.00 to 65.00Hz 45.00 to 65.00Hz FREQ

0.0000 to 0.5000A rms 0.000 to 5.000A rms 0.0000 to 0.5000A rms 0.000 to 5.000A rms

Setting the Input Type/Recording Span/Linear Scaling

Precautions in Measurement

• Input the voltage or current being measured at a level between 10% and 100% of the measuring range. The DR recorder bases its calculations of all other parameters on the frequency of V1. Extra care must therefore be taken when setting the input level of V1. If the input level fails to fall within the given limits, there is no guarantee that the measurement of any other parameters will be reliable.

IM DR231-01E

5-9

6.1 Setting the Recording Mode/Engineering Unit/

RECORD

ALARM

CHART

KEYLOCK

Recording Channel and Recording Interval

SET=SYSTEM

>Select Setting Parameter

SYSTEM UNIT TREND TIMER LOGIC COPY

• Press the SET key to enter the SET menu.

• Select/set

• To escape from a lower menu, press the MODE (ESC) key. Its main menu will appear, although new settings/selections will not be kept.

• New settings/selections will be kept when you reach the final display of that setting.

(Main menu)

SET=

(Lower menu)

SYSTEM

ENTER ENTER

SYSTEM=LOGGING

***SET OK***

SYSTEM=TREND

TREND=FIX

FIX AUTO

using the keys.

ESC

ENTER

D I S P M O D E

E S C

P R I N TF U N C

I N S D E L

R A N G E A L A R M

S E TC H A R T E N T E R

R E C O R D

F E E D

M. F U N C 1

M. F U N C 2

Setting the Recording Conditions

UNIT

TREND

ENTER

***SET OK***

001-01:UNIT=_ _ _ _ _ _

>Select Channel No.

001-01:UNIT=_ _ _ _ _ _

>Select Channel No.

001-01:UNIT= Ω _ _ _ _ _

>↓%&()+-*/.:°µε 0123- - -89 ABC- - -KL↑

***SET OK***

001-01:TREND=ON

>ON 001 >Select Channel No.

001-01:TREND=ON

>ON 001 >Select Channel No.

001-01:TREND=ON

>ON 001 OFF ON

***SET OK***

ESC

ENTER

ESC

ENTER

ESC

To the next page

IM DR231-01E

6-1

6.1 Setting the Recording Mode/Engineering Unit/Recording Channel and Recording Interval

From the previous page

TIMER

ENTER

TIMER No.=1

1 2 3 4 5 6

1:TIMER MODE=RELATIVE

1:TIME=00 01: 00

>Set DD HH:MM:00

***SET OK***

1:TIMER MODE=ABSOLUTE

1:TIME=1h

1min 2min 3min 4min 5min 6min 10min 12min 15min 20min 30min 1h 2h 3h 4h 6h 8h 12h 24h

1:REF TIME=00:00

***SET OK***

ENTER

ESC

ENTER

ESC

Recording Mode (SYSTEM)

The following types of recording mode can be selected. The default is TREND.

• LOGGING (LOGGING MODE); measurement values will be printed out as digital values.

• TREND (ANALOG TREND MODE); measurement values will be recorded as analog trends (trend recording) and printed out as digital values.

• Selecting the recording interval This setting can only be done for the TREND mode, and its default setting is AUTO. FIX: recording takes place at intervals equal to the measurement period (scan interval) intervals AUTO: recording takes place at intervals automatically decided by measurement interval and chart speed.

Engineering Unit (UNIT)

An engineering unit of up to six characters can be assigned to each channel. The default setting is all spaces. The characters/numbers can be selected by cursor from the displayed row on sub-display 1. An engineering unit can only be assigned to channels to which linear scaling is applied. For details concerning entering characters/numbers, refer to page 6-15. If the instrument is equipped with the optional computation function or floppy disk drive, make sure that channel Nos. are set between A01 and A30 when specifying the measurement units for computation channels.

Setting the Channels to be Recorded (TREND) Trend recording

Recording can be set ON/OFF per channel. The default setting is ON. ON: recording will take place; OFF: recording will not take place. The display will show “■” for channels set to ON, and “■” for channels set to OFF. Refer to page 4-10 on which channel is being displayed. If you are installing optional computation channels, channel Nos. must be set to A01 to A30.

Digital Printout in the Analog Trend Mode

Refer to 6.4 Setting Tag, Digital Printout and Manual Printout on page 6-9.

6-2

IM DR231-01E

Yokogawa DR240 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Foreword

Checking the Contents of the Package

Safety Precautions

How to Use this Manual

Conventions Used in this Manual

Contents

List of Menus and Set-up Data

1.1 About DARWIN

1.2 Names of Parts

2.1 Display Functions

2.2 Measurement Input Functions

2.3 Recording Functions

2.4 Alarm Function

2.5 Standard Computation Functions

2.6 Other Functions

3.1 General Precautions for Installation

3.2 How to Install

3.3 Installing the Chart and Ribbon Cassette

3.4 Connecting the Interface Cables

3.5 Connecting the Signal Lines

3.6 Connecting the Power Cable and Turning the Power ON/OFF

3.7 Setting the Date and Time

3.8 Countering Noise

4.1 Using the AUTO Mode

4.2 Using the MANUAL Display

4.3 Using the PAGE Display

4.4 Using the ALARM SEARCH Display

4.5 Using the BARGRAPH Display

4.6 Using the ALARM STATUS Display

4.7 Using the RELAY STATUS Display

4.8 Using the CLOCK (Date & Time) Display

5.1 Setting the Type of Input and Recording Span

5.2 Setting Linear Scaling and the Recording Span