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MEX-D

P. 1 / 3

EM-4616 Rev.7

BEFORE USE ....

Thank you for choosing M-System.  Before use, check the
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 (body + base socket) ..................... (1)

■ 

MODEL NO.

Check that model No. described on specification label is
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

■ 

POWER INPUT RATING & OPERATIONAL RANGE

• Check the power rating for the unit on the specification label.

Rating 

±

10%, 50/60 

±

2 Hz, approx. 3VA

■ 

UNPLUGGING THE UNIT

• Before you remove the unit from its base socket or mount it,
turn off the power supply and input signal for safety.

■ 

ENVIRONMENT

• Indoor use
• When heavy dust or metal particles are present in the air,
install the unit inside proper housing with sufficient ventila-
tion.
• 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 -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.

■ 

WIRING

• Do not install cables (power supply, input and output) 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.

■ 

MOTOR

• The internal SSR is not designed to direct-reverse driving
for a 200V AC motor.

■ 

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.

INSTRUCTION  MANUAL

MODEL

MEX-D

VALVE POSITIONER

(current feedback; built-in SSR)

COMPONENT IDENTIFICATION

■ 

HOW TO OPEN THE FRONT COVER:

Position your finger on the hook at the top of front cover and
pull.

 FRONT PANEL CONFIGURATIONS

The shape of base socket may be different
for some models. 

Body

Base Socket

Connection

Diagram Label

Front Cover

Specification

Label

Span Adj.

Zero Adj.

Deadband Adj.

Timer Adj.

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