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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-5527  Rev.5  P. 1 / 3

INSTRUCTION MANUAL

CURRENT LOOP SUPPLY

(applicable to HART signal)

MODEL

W2DYH

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 (body + base socket) .............................(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

 

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. 5 – 7VA
    24V DC rating: 24V ±10%, approx. 3W
    11 – 27V DC rating: 11 – 27V, approx. 3W
    110V DC rating: 85 – 150V, approx. 3W

 

GENERAL PRECAUTIONS

• 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 
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 -5 to +55°C 

(23 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.

COMPONENT IDENTIFICATION

Model

SPAN

ZERO

SPAN

ZERO

Fixing Screw

Zero Adj.

Span Adj.

Zero Adj.

Span Adj.

Connection

Diagram

Specifications

Output 1

Output 2

*

*

Provided only for dual output.

Body

Base Socket

INSTALLATION

Loosen the fixing screw at the front of the unit in order to 
separate the body from the base socket.

DIN Rail

35mm wide

Spring Loaded

DIN Rail Adaptor

 

DIN RAIL MOUNTING

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

 

WALL MOUNTING

Refer to “EXTERNAL DIMENSIONS.”

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