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5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201  Fax: +81(6)6659-8510  E-mail: [email protected]

EM-7656-A  Rev.3  P. 1 / 2

INSTRUCTION MANUAL

2-WIRE UNIVERSAL TEMPERATURE TRANSMITTER

(PC programmable)

MODEL

27U

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.

 

PACKAGE INCLUDES:

Signal conditioner ...............................................................(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.
When using this product in potentially explosive atmos-
phere or hazardous (classified) location, you have to follow 
the safety procedure to install it.  Please refer to “SAFE IN-
STALLATION MANUAL” for each type of certification.

POINTS OF CAUTION

 

CONFORMITY WITH EU DIRECTIVES

• The actual installation environments such as connected 

devices and 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 re-
gard to the whole system and employ additional protec-
tive measures to ensure the CE conformity.  

 

GENERAL PRECAUTIONS

• Before you remove the module, turn off the power supply 

and input signal for safety.

 

ENVIRONMENT

• 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 con-

tinuous vibration.  Do not subject the module to physical 
impact.

• Environmental temperature must be within -40 to +85°C 

(-40 to +185°F) with relative humidity within 0 to 95% 
RH in order to ensure adequate life span and operation.

 

WIRING

• 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.

 

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.

COMPONENT IDENTIFICATION

Specifications

INSTALLATION  

unit : mm (inch)

This module is suitable for mounting inside a DIN type B 
head.

33 (1.30)

2–M4 SCREW

The screws are to be provided by the customer.

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