M-system M3SMS Instruction Manual

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

EM-7715 Rev.4 P. 1 / 4

INSTRUCTION MANUAL

POTENTIOMETER TRANSMITTER

MODEL

M3SMS

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.

POINTS OF CAUTION

■ CONFORMITY WITH EU DIRECTIVES

•This equipment is suitable for Pollution Degree 2 and In­stallation Category II (transient voltage 2500V). Rein­forced 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 insu­lation class of this unit satisfies the system requirements.

•Altitude up to 2000 meters.

•The equipment must be mounted inside a panel.

•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: 90 – 264V, 47 – 66 Hz, approx. 2 – 4VA

24V DC rating: 24V ±10%, approx. 1W
24 – 240V DC rating: 21.6 – 264V, approx. 1W

■ GENERAL PRECAUTION

•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 ex­posed internal power/input terminals may cause an elec­tric 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 ca­bles, 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 sup­plied, 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 ap­propriate life duration.

M3SMS

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

EM-7715 Rev.4 P. 2 / 4

COMPONENT IDENTIFICATION

Front Cover

Front Housing

Body

Specifications

(side)

■ FRONT PANEL CONFIGURATION

12

34

Zero Adj.

Power LED

Span Adj.

■ HOW TO SEPARATE THE TERMINAL BLOCKS

When you need to separate the terminal blocks from the
transmitter body for wiring, insert a minus driver between
the terminal block and the housing body, pull up the driver
and pull out the terminal block.

INSTALLATION

■ DIN RAIL MOUNTING

Set the unit so that its DIN rail adaptor is at the bottom.
Position the upper hook at the rear side of the unit on the
DIN rail and push in the lower. When removing the unit,
push down the DIN rail adaptor utilizing a minus screw­driver and pull.

DIN Rail
35mm wide

Spring Loaded
DIN Rail Adaptor