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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-7702  Rev.3  P. 1 / 3

INSTRUCTION MANUAL

THERMOCOUPLE TRANSMITTER

(PC programmable)

MODEL

M3SXT

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.
The M3SXT is programmable using the PC Configurator 
Software.  For detailed information on the PC configuration, 
refer to the M3SCFG users manual.  The M3SCFG PC Con-
figurator 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  In-
stallation Category II (transient voltage 2500V).  Rein-
forced insulation (signal input or output to power input: 
300V) and basic insulation (signal input to output: 300V) 
are maintained.  Prior to installation, check that the insu-
lation class of this unit satisfies the system requirements.

• 

Altitude up to 2000 meters.

• 

The equipment must be mounted inside a panel.

• 

Insert noise filters for the power source, input and output 
connected to the unit.  COSEL Model NAC-04-472, TDK 
Model ZCAT 3035-1330 or equivalent is recommended.

• 

The equipment must be installed such that appropriate 
clearance and creepage distances are maintained to con-
form to CE requirements.  Failure to observe these re-
quirements may invalidate the CE conformance.

• 

The actual installation environments such as panel con-
figurations, connected devices, connected wires, may af-
fect 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 conform-
ity.

• 

Install lightning surge protectors for those wires connect-
ed 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: 90 – 264V, 47 – 66 Hz, approx. 2 – 4VA
  24V DC rating: 24V ±10%, approx. 0.5W
  24 – 240V DC rating: 21.6 – 264V, approx. 1W

 

GENERAL PRECAUTIONS

• 

Before you remove the unit or mount it, turn off the power 
supply and input signal for safety.

• 

Pulling the front part of the unit forcibly may separate 
the front housing from the body housing.  Touching ex-
posed internal power/input terminals may cause an elec-
tric shock if the unit is powered.

 

ENVIRONMENT

• 

Indoor use.

• 

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

• 

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

• 

Environmental temperature must be within -10 to +55°C 
(14 to 131°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 ca-
bles, etc.

 

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 unit is designed to function as soon as power is sup-
plied, however, a warm up for 10 minutes is required for 
satisfying complete performance described in the data 
sheet.

• 

With voltage output, do not leave the output terminals 
shortcircuited for a long time.  The unit is designed to 
endure it without breakdown, however, it may shorten ap-
propriate life duration.

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