M-system RZMS-U9 Instruction Manual

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]

EM-7602 Rev.11 P. 1 / 8

INSTRUCTION MANUAL

PC RECORDER

(universal input, 12 points; isolated)

MODEL

RZMS-U9

BEFORE USE ....

Thank you for choosing M-System. Before use, please check
contents of the package you received as outlined below.
If you have any problems or questions with the product,
please contact M-System’s Sales Office or representatives.

This product is for use in general industrial environments,
therefore may not be suitable for applications which require
higher level of safety (e.g. safety or accident prevention sys­tems) or of reliability (e.g. vehicle control or combustion con­trol systems).

For safety, installation and maintenance of this product
must be conducted by qualified personnel.

■ PACKAGE INCLUDES:

PC Recorder .........................................................................(1)

Cable (9-pin D-sub cable, straight type) ............................(1)

CD (software and users manual) ........................................(1)

■ MODEL NO.

Confirm Model No. marking on the product to be exactly
what you ordered.

■ INSTRUCTION MANUAL

This manual describes necessary points of caution when
you use this product, including installation, connection and
basic maintenance procedures. Read also the Users Manual
for the software included in the CD for maximum use of the
PC Recorder.
The RZMS is programmable using the PC configurator soft­ware. For detailed information on the PC configuration, re­fer to the RZMSCFG instruction manual. The RZMSCFG
PC Configurator Software is downloadable at M-System’s
web site: http://www.m-system.co.jp.

POINTS OF CAUTION

■ CONFORMITY WITH EU DIRECTIVES

• This equipment is suitable for Pollution Degree 2 and In­stallation Category II (transient voltage 2500V). Rein­forced insulation (power input to input or output: 300V) is
maintained. Prior to installation, check that the insula­tion class of this unit satisfies the system requirements.

• Altitude up to 2000 meters.

• The equipment must be mounted inside a panel.

• Insert noise filters. Okaya Electric Industries Model
SUP-E1H or equivalent for the power source connected to
the unit, and TDK Model ZCAT 3035-1330 or equivalent
for the RS-232-C cable are recommended.

• The equipment must be installed such that appropriate
clearance and creepage distances are maintained to con­form to CE requirements. Failure to observe these re­quirements may invalidate the CE conformance.

• The actual installation environments such as panel con­figurations, connected devices, connected wires, may af­fect the protection level of this unit when it is integrated
in a panel system. The user may have to review the CE
requirements in regard to the whole system and employ
additional protective measures to ensure the CE conform­ity.

• Install lightning surge protectors for those wires connect­ed to remote locations.

■ POWER INPUT RATING & OPERATIONAL RANGE

• Locate the power input rating marked on the product and
confirm its operational range as indicated below:

100 – 240V AC rating: 85 – 264V, 47 – 66 Hz, approx. 5VA

24V DC rating: 24V ±10%, approx. 1.2W

■ GENERAL PRECAUTIONS

• Before you remove the module, turn off the power supply
and input signal for safety.

■ PC RECORDER SOFTWARE

• Use the latest version of PC Recorder Software included
in the product package.

■ ENVIRONMENT

• Indoor use.

• When heavy dust or metal particles are present in the air,
install the module inside proper housing with sufficient
ventilation.

• Do not install the module where it is subjected to continu­ous vibration. Do not subject the unit to physical impact.

• Environmental temperature must be within -5 to +60°C
(23 to 140°F) with relative humidity within 30 to 90% RH
in order to ensure adequate life span and operation.

• Be sure that the ventilation slits are not covered with ca­bles, etc.

■ GROUNDING

• In order to protect the RZMS module and connected de­vices in connecting/disconnecting Modbus cable or the
configurator cable, be sure to earth FG terminals of the
RZMS and the connected device to a most stable earth
point in the environment. Grounding is also effective to
eliminate problems caused by noises.

■ WIRING

• Wrong connection may damage the module.

• Do not connect cables to moving parts or pull them tightly.

■ MINIMIZING NOISE INTERFERENCE TO ANALOG SIGNAL CABLES

• Noise entering through the analog signal cables may
cause irregular measurement values, degradation of over­all accuracy, and malfunction of the product.

• Despite the RZMS’s excellent filtering capabilities
against normal mode noise interference to analog signal
cables, we recommend that you would conduct wiring to
the product with the following points of caution, especial­ly for low-level signals with thermocouple, mV and RTD
measurements.

RZMS-U9

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]

EM-7602 Rev.11 P. 2 / 8

• Use shielded twisted-pair cables to connect analog signals
and Modbus RS-485. The shield line must be grounded to
the one and same earth point which is the most stable in
the environment, as for the RZMS’s FG terminal.

• The RZMS is capable of notch filtering the 50/60 Hz
normal mode line noise. Select the operating mode set­ting switch at the rear side of the product or use the PC
Configurator Software RZMSCFG to match the line fre­quency.

• The RZMS is equipped with the first order lag filter pro­grammable by each channel. Furthermore, you can set
the moving average filter programmable by each channel
on the MSR128LS and MSR128LV software programs.
Use these filtering functions according to your needs.

Use the PC Configurator Software RZMSCFG to enable

the first order lag filter.

• The A/D Conversion Mode is factory set to ‘Medium’ but
is programmable to ‘Slow’ using the PC Configurator
Software RZMSCFG. In general, selecting the ‘Slow’ A/D
conversion mode means the lower data conversion cycles,
but the stronger noise filtering. Change this setting ac­cording to your needs.

• Do not install cables close to noise sources (relay drive
cable, high frequency line, etc.).

• Do not bind these cables together with those in which
noises are present. Do not install them in the same duct.

■ MINIMIZING CHANNEL-TO-CHANNEL COMMON MODE NOISE

• The CMNR ratio between channels are as described in
the product’s data sheet. Input types such as ±12V, ±6V,
±3V, ±1000mV are mostly safe from these interferences,
however, the measuring accuracies for other input types
may be compromised by large common mode noise.

• As described in the data sheet, the DC/AC voltage across
the C terminals of the presently-scanned channel and the
last scanned channel affects the measuring values.

For example, if you measure 60 Hz, 100Vrms between

ch.12 and ch.1 while ch.1 is connected to a thermocouple,
ch.1 measuring value could have errors by 707µV (141
Vpeak, -106 dB).

• In order to obtain stable measuring results without noise
interference, it is effective to minimize the common mode
noise between channels and between each channel to FG.

We recommend that C terminals of each channel be cross-

wired and then connected to the FG terminal to ensure
the measurement of the highest accuracy.

• If such configuration is not possible, take special con­sideration to minimize the channel-to-channel common
mode noise and the potential against the FG.

Employ a thermocouple/RTD sheath of high insulation to

prevent a leak current. Do not weld a thermocouple di­rectly to the surface of the measuring subject.

• If these precautions are not usable, we recommend the
use of model R1MS-GH3, fully channel-to-channel iso­lated type.

• Arranging channels so that a low-level signal channel is
not located next to a high potential signal channel while
multiplexing these signals is also effective.

• The potential of the open terminal C against the FG
equals to that of the last scanned channel. If ch 2 and ch
3 are not connected, the accuracy of ch 4 measurement is
affected by potential difference between the C terminals
of ch 1 and ch 4.

■ STABILIZING COLD JUNCTION COMPENSATION

• Sudden ambient temperature change could increase the
cold junction compensation error by the internal terminal
temperature sensor. Please take the following precau­tions to prevent it.

• Be sure to close the terminal cover when operating the RZMS.

• Stabilize the temperature around the terminal block. DO
NOT expose the terminal block in the direct line of air
flow from air conditioners, cooling fans, or ventilation
fans. Switching on and off the fans located close to the
terminal block affects the ambient temperature.

• Disposition of the terminals for odd-number channels is
tend to be more favored in the CJC stability than those
for even-number channels.

• Resistor modules (model: REM3-250) can be connected to
the RZMS to convert current inputs into voltage. How­ever, it is not recommended when TC inputs are mixed
because the heat developed on and around the REM3
affects the cold junction compensation performance. We
recommend that REM3 be connected on a separate ter­minal board.

• Do not use wires of large diameter which has large heat
dissipation. We recommend using the wires of 0.5 mm

2

(AWG 20) or thinner diameters not only for the thermo­couple channels but for all other screw terminals.

• Temperature measured at another channel of the RZMS
can be specified as the reference point by using PC Con­figurator Software. This is beneficial to reduce compensa­tion wires’ cost when there are many temperature points
in remote locations. Install a relaying terminal board
near the sensors and use ordinary copper wires between
the board and the RZMS, and assign one channel to meas­ure temperature at the terminal board as the reference.

Take the same precautions for the relaying terminal

board, too. Also, RTD of higher accuracy is recommended
to measure the relaying terminal temperature, though a
thermocouple of lower accuracy could be used.

■ CONNECTING OTHER DEVICES IN PARALLEL

• Turn off the burnout function for thermocouple inputs.

• No parallel connection is permitted for RTD or potenti­ometer inputs.

■ TWO-WIRE RTD

• The product is designed for use with three-wire RTDs,
measuring continuously the voltage drop caused by wire
resistance. However, two-wire RTD can be used by clos­ing across B and C terminals.

• After the RTDs are wired, short across the RTD wires and
perform the wire resistance compensation by PC Configu­rator Software RZMSCFG. Be sure to enable the wire
resistance compensation.

■ DO NOT APPLY OVERRANGE NORMAL MODE VOLTAGE

• Do not apply voltages exceeding ±20V to terminals B – C
for ±3V, ±6V or ±12V ranges to prevent damage.

• For other ranges, do not apply voltages exceeding ±12V to
the same terminals to prevent damage.

Applying voltages exceeding ±1.5V may affect the meas-

uring accuracies of other channels.

■ AND ....

• The module is designed to function as soon as power is
supplied, however, a warm up for 10 minutes is required
for satisfying complete performance described in the data
sheet.

RZMS-U9

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]

EM-7602 Rev.11 P. 3 / 8

PC REQUIREMENTS (provided by the user)

■ MSR128-V6

NORMAL MODE (storing rates ≥ 500 ms) HIGH SPEED MODE (storing rates 100 / 200 ms)

PC IBM PC/AT or compatible
Operating system Windows XP SP1, SP2, Windows Vista Business 32-bit, Windows 7 Professional 32-bit or

Windows 10 32-bit, 64-bit

Note: Proper software functions may not be ensured under certain conditions.
CPU Pentium III 800 MHz or higher Pentium IV 2.0 GHz or higher
Screen area 1024 by 768 pixels or better resolution
Display color 65000 colors (16 bits)
Video memory 2 MB minimum; 4 MB recommended 4 MB minimum
Main memory 256 MB recommended for Windows XP

1 GB recommended for Windows Vista, Windows 7,

Windows 10

512 MB recommended for Windows XP
1 GB recommended for Windows Vista, Windows 7,
Windows 10

Hard disk area Use an internal hard disk. *

1

Max. approx. 100 MB required per day.

Use an internal hard disk. *1
Max. approx. 500 MB required per day.

Printer Use a printer for Windows. The programs use Standard System Fonts used in Windows.

Use a printer driver for Standard System Fonts.
CD drive Windows supported CD drive is used to install the software program.
Card reader drive Used with devices which save data in a CF Card
Communication port RS-232-C port (COM1 through COM5) supported

LAN card

LAN card by Windows

*1. External (e.g. SCSI) devices may impair appropriate performance.

■ MSR128LS, MSR128LV

MSR128LS MSR128LV

PC IBM PC/AT or compatible
Operating system Windows XP SP1 or SP2.

For High Speed Mode (Group 0, 50 msec. storing cycle), use Windows XP SP1, SP2.

Note: Proper software functions may not be ensured under certain conditions.
CPU Pentium II 233 MHz or higher *

2

Screen area 800 by 600 pixels or better resolution 640 by 480 pixels or better resolution
Display color 65000 colors (16 bits)
Main memory 256 MB for Windows XP
Hard disk area 200 MB minimum *

3

Follow the respective OS’s standard for Windows XP.
CD drive Windows supported CD drive is used to install the software program.
Communication port RS-232-C port (COM1 through COM5) supported by Windows *

4

or LAN communication card

*2. Alternately, Celeron 300 MHz or higher with the secondary cache.

For High Speed Mode (Group 0, 50 msec. storing cycle), Pentium III 800 MHz or higher.
*3. External (e.g. SCSI) devices may impair appropriate performance.
*4. The RS-232-C port may be predefined for other purposes than for COM port.

Driver software change or system configuration may be required before using such a port.
Note 1: At 50 msec. storing cycle (Group 0), the MSR128LS/LV may not be able to store every bit of data depending upon the PC’s

performance levels. These missing data will be substituted by the last stored data. Only one (1) node is connectable in the
high speed mode.

Note 2: Please refer to the hardware data sheet for response time of the module.

RZMS-U9

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]

EM-7602 Rev.11 P. 4 / 8

COMPONENT IDENTIFICATION

T1 T2T3 T4

T5 T6T7

1A 1B 1C 3A 3B 3C 5A 5B 5C 7A 7B 7C 9A 9B 9C

11A 11B

ALM+ALM

–

11C

2A 2B 2C 4A 4B 4C 6A 6B 6C 8A 8B 8C

10A 10B 10C 12A 12B 12C

TRG+TRG

–

RUN Indicator LED COMM Indicator LED

ERR Indicator LED

TRIG Indicator LED

ALM Indicator LED

RS-485 Connector

Configurator Jack

Node Address Setting
Rotary SW

Operating Mode
Setting Rotary SW

RS-232-C
9-pin Connector

Power / FG Terminals

■ TOP VIEW ■ REAR VIEW

Specifications

■ INDICATOR LED

RUN: Green LED blinks when the internal micro-

processor is operating normally.

COMM: Communication LED. Amber LED turns on

when the RZMS is receiving normal data
query frames from Modbus and sending re­sponses out.

ERR: Error LED. Red LED turns on with internal

errors and blinks when the RZMS is receiv­ing abnormal data query frames from Mod­bus.

ERR LED may also blink while the PC Re-

corder is not recording, however, it is not an
abnormality or a failure of the RZMS as far
as the LED turns off when the PC Recorder
starts recording. (The RZMS blinks the ERR
when it receives a break signal from certain
types of PC designed to indicate an abnor­mality when application programs are not in
use of one or more COM ports.)

TRG: Trigger LED. Amber LED turns on when the

trigger contact input turns on.

ALM: Alarm LED. Amber LED turns on when the

alarm contact output turns on.

■ NODE ADDRESS SETTING ROTARY SW

1 through F: Setting at the power startup is recognized as

the module’s node address.

0: Setting with PC Configurator Software is

enabled. Software settings are deleted if the
RZMS is started up with a setting other than
zero (0).

■ OPERATING MODE SETTING ROTARY SW

A/D conversion mode, service channel numbers, cold junction compensation, line noise filter frequency and burnout action for
T/C and RTD input can be specified using this switch.
Setting with PC Configurator Software is enabled when the switch is set to zero (0), except that the cold junction compensa­tion can be enabled/disabled for individual channels on the PC Recorder Software programs: MSR128LS and MSR128LV. In
order to protect the software setting before the power is turned off, be sure to turn the power supply on with ‘0’ setting.

1 through F: Combination of settings as shown in the table below.
0: Last software setting before the power is turned off is enabled.

A/D

CONVERSION MODE

SERVICE

CHANNEL

NUMBERS

COLD JUNCTION
COMPENSATION

(T/C)

LINE NOISE FIL-

TER

FREQUENCY

BURNOUT (T/C and RTD)

All Channels

Individual
Channels

NONE UP DOWN

Medium 12

With

50/60 Hz 1 2 3

50 Hz 4 5 6
60 Hz 7 8 9

Without

50 Hz A B C
60 Hz D E F

Software setting for

all channels (Fast,

Medium, Slow)

Software setting

(12 or 6)

Software setting

for individual

channels

Software setting

for all channels

(50, 60, 50/60 Hz)

0

Software

setting

Note 1: Specifying the exact frequency (50 Hz and 60 Hz) provides better protection than 50/60 Hz setting.
Note 2: Factory setting is ‘1.’

RZMS-U9

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]

EM-7602 Rev.11 P. 5 / 8

INSTALLATION

■ DIN RAIL MOUNTING

DIN Rail Adaptor

DIN Rail

35mm wide

Set the body so that its DIN
rail adaptor is at the bottom.
Pull down the DIN rail adap­tor.
Position the upper hook at the
rear side on the DIN rail and
push in the lower. Push back
the DIN rail adaptor.
When the module is mounted
on a DIN rail attached on the
wall surface in vertical direc­tion, use of an attachment
plate to prevent the module
from sliding down is recommended.

■ WALL MOUNTING

Set the body so that its DIN rail adaptor is at the bottom.
Pull down the DIN rail adaptor.
Refer to “EXTERNAL DIMENSIONS.”

TERMINAL CONNECTIONS

Connect the unit as in the diagram below.

■ EXTERNAL DIMENSIONS unit: mm (inch)

1A 1B 1C 3A 3B 3C 5A 5B 5C 7A 7B 7C 9A 9B 9C

11A 11B

ALM+ALM

–

11C

2A 2B 2C 4A 4B 4C 6A 6B 6C 8A 8B 8C

10A 10B 10C 12A 12B 12C

TRG+TRG

–

T1 T2T3 T4

T5 T6T7

175 (6.89)

56.5 (2.22)

118 (4.65)14 (.55) 10 (.39)

117 (4.61)

[6 (.24)]

165 (6.50)

6.2 (.24)

FOR WALL MOUNT.

40–M3 I/O TERMINALS

3–5 (.20) dia.
MTG HOLES

DIN RAIL
35 mm wide

When the module is mounted on a DIN rail attached on the wall surface in vertical direction,
use of a attachment plate to prevent the module from sliding down is recommended.

15.5 (.61)

3 (.12)

RZMS-U9

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]

EM-7602 Rev.11 P. 6 / 8

■ CONNECTION DIAGRAM

Note: In order to improve EMC performance, bond the FG terminal to ground.
Caution: FG terminal is NOT a protective conductor terminal.

RS-232-C

T3
T4

T2

T1

T7

T6

T5

Term.
Resist.

Network
Interface

Isolated

Multi-output

Power
Circuit

+

–

Shielded Twisted-pair Cable

To Other
I/O Modules

Jumper *2

FG

U (+)
V (–)

POWER

D-SUB CONNECTOR

JACK

CONFIGURATOR

INPUT 2

1A
1B
1C

INPUT 1

2A
2B
2C

Analog

Input

Circuit 1

Analog

Input

Circuit 2

INPUT 4

3A
3B
3C

INPUT 3

4A
4B
4C

Analog

Input

Circuit 3

Analog

Input

Circuit 4

INPUT 6

5A
5B
5C

INPUT 5

6A
6B
6C

Analog

Input

Circuit 5

Analog

Input

Circuit 6

INPUT 8

7A
7B
7C

INPUT 7

8A
8B
8C

Analog

Input

Circuit 7

Analog

Input

Circuit 8

INPUT 10

9A
9B
9C

INPUT 9

10A
10B
10C

Analog

Input

Circuit 9

Analog

Input

Circuit 10

INPUT 12

11A
11B
11C

INPUT 11

12A
12B
12C

Analog

Input

Circuit 11

Analog

Input

Circuit 12

TRIGGER

INPUT

ALM
ALM

ALARM

OUTPUT

TRG

+

TRG

–

Isolated

Alarm Output

Isolated

Trigger Input

Photo MOSFET Multiplexer

Floating A/D Converter and Terminal Temperature Sensor

Micro

Processor

Based

Controller

*1

C

B

A

ext. wire

+

–

+
–

C

B

A

C

B

A

C

B

A

ext. wire

–

+

–

+
–
+

C

B

A

+

–

A

B

B

3

2

1

max.

min.

■ DC INPUT ■ T/C INPUT

• Upscale / No Burnout

■ T/C INPUT

• Downscale Burnout

■ RTD INPUT ■

POTENTIOMETER INPUT

*1 Input Connection Examples

*2 When the device is located at the end of a transmission line via twisted-pair cable, (when there is no cross-wiring),

close across the terminal T2 –T3 with the attached jumper pin (or with a leadwire).
When the device is not at the end, remove the jumper pin.

Note 1:

Note 2:
Note 3:

Note 4:

Note 5:

Note 6:

In order to protect the RZMS-U9 module and connected devices in connecting/disconnecting Modbus cable or
the configurator cable, be sure to earth FG terminals of the RZMS-U9 and the connected device to a most stable
earth point in the environment. Grounding is also effective to eliminate problems caused by noises.
Be careful to eliminate noise as much as possible by e.g. using shielded cables.
The smaller is common mode voltage (DC and AC) between C terminals and between C and FG, the better is
measuring accuracy. Connecting between C terminals and if possible to FG will yield the best accuracy.
Resistor modules (model: REM3-250) can be connected to 1A through 12C terminals to convert current inputs
into voltage. However, it is not recommended when TC inputs are mixed because the heat developed on and
around the REM3 affects the cold junction compensation performance. We recommend that REM3 be connected
on a separate terminal board.
When the internal temperature sensors are used for CJC, temperature imbalance around the terminal block affects
greatly the CJC accuracy. In order to minimize such imbalance, do not use wires of large diameter which has large
heat dissipation. Be sure to close the terminal cover. Do not expose the module directly in the line of wind from a
cooling fan.
Two-wire RTD can be used by closing across B and C terminals. Be sure to compensate wire resistance by
PC Configurator Software.

■ ■ ■ ■ ■

RZMS-U9

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]

EM-7602 Rev.11 P. 7 / 8

■ RS-232-C INTERFACE

15

69

ABBR. PIN NO. EXPLANATION OF FUNCTION

BA (SD) 2 Transmitted Data
BB (RD) 3 Received Data
AB (SG) 5 Signal Common
CB (CS) 7 Clear to Send
CA (RS) 8 Request to Send

1
4
6
9

Not Used.
DO NOT connect. Connecting may
cause malfunctions.

R1M Series

RZMS-U9

1
2
3
4
5
6
7
8
9

1
2
3
4
5
6
7
8
9

The above connection including solid and broken lines is an example of
‘Interlink’ cable.

■

RS-232-C CABLE

• Use a ‘Straight’ cable to connect the module to a PC if not with the cable
included in the product package.

• For connecting the module to the R1M or the R2K-1 via RS-232-C,
the RS-232-C cable must satisfy the following conditions:
(1) Includes the connections shown with solid lines in the figure below.
(2) Pins No. 8 are not connected between each other. (May cause
breakdowns.)
‘Interlink’ or ‘Reverse’ cables are usually applicable.

• Pin Assignments

WIRING INSTRUCTIONS

■ M3 SCREW TERMINAL (Input signal, alarm output)

Torque: 0.6 N·m

■ SOLDERLESS TERMINAL

Refer to the drawing below for recommended ring tongue
terminal size. Spade tongue type is also applicable.
Applicable wire size: 0.75 to 1.25 mm

2

(AWG19 to 16)
Recommended manufacturer: Japan Solderless Terminal
MFG.Co.Ltd, Nichifu Co.,ltd

6 max

(.24)

3 (.12) max

3.2 (.13) dia.

mm (inch)

■ EURO TYPE CONNECTOR TERMINAL (Power input, Modbus)

Applicable wire size: 0.2 to 2.5 mm2 (AWG24 to 12)
Stripped length: 7 mm

COMMUNICATION CABLE CONNECTIONS

RZMS-U9

T1
T2
T3
T4

RZMS-U9

T1
T2
T3
T4

T1
T2
T3
T4

RZMS-U9

CONNECTOR

RS-232-C

RS-485

*

1

*

1

*1. Internal terminating resistor is used when the device is at the end of a transmission line.
*2. Install shielded cables to all sections and ground them at single point.

*

2

FG

RS-485

RZMS-U9

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]

EM-7602 Rev.11 P. 8 / 8

CHECKING

1) Terminal wiring: Check that all cables are correctly con­nected according to the connection diagram.

2) Power input: Check supply voltage.

3) Input: Check that the input is within 0 – 100% of full­scale.

ADJUSTMENT PROCEDURE

This unit is calibrated at the factory to meet the ordered
specifications, therefore you usually do not need any cali­bration. However, PC Configurator Software RZMSCFG is
available to trim zero and span if such needs arise in order
to adjust the input sensor range.
For RTD measuring, wire resistance can be compensated on
site using the RZMSCFG.

MAINTENANCE

Regular calibration procedure is explained below:

■ CALIBRATION

Warm up the unit for at least 10 minutes. Apply 0%, 25%,
50%, 75% and 100% input signal. Check that the output
signal for the respective input signal remains within accu­racy described in the data sheet. When the output is out of
tolerance, please contact M-System’s Sales Office or repre­sentatives.