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W2VS

P.  / 2

EM-558 Rev.5

SIGNAL TRANSMITTER

MODEL

W2VS

INSTRUCTION MANUAL

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 input resistor) ..... (1)
  Input resistor is provided only with current input type.

 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

 NONINCENDIVE APPROVAL OPTION

• This equipment is suitable for use in Class I, Div. 2, Groups 

A, B, C and D or Non-Hazardous Locations only.

• WARNING! Before You  Remove  the  Unit  from  Its  Base 

Socket or Mount It, Turn Off the Power Supply and Input 
Signal for Safety.

• WARNING! – Explosion Hazard –
  Substitution  of  Components  May  Impair  Suitability  for 

Class I, Div. 2.

• WARNING! – Explosion Hazard –
  Do  Not  Disconnect  Equipment  Unless  Power  Has  Been 

Switched Off or The Area is Known To Be Non-Hazardous.

• The equipment was evaluated for use in the ambient tem-

perature  and  relative  humidity  as  mentioned  in ‘ENVI-
RONMENT’ section.

• The input and output wiring must be in accordance with 

Class I, Div. 2 wiring methods and in accordance with the 
authority having jurisdiction for use in these hazardous 
locations.

 CONFORMITY WITH EC DIRECTIVES OR UL

• This equipment is suitable for use in a Pollution Degree 

2 environment and in Installation Category II, with the 
maximum operating voltage of 300V.

  Basic insulation is maintained between signal input, out-

put 1 and output 2.  Prior to installation, check that the 
insulation class of this unit satisfies the system require-
ments.

• 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 con-
form to CE/UL requirements.  Failure to observe these re-
quirements may invalidate the CE/UL conformance.

 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 (90 – 264V for UL), 
     

47 – 66 Hz, approx. 4 – 6VA

  24V DC rating: 24V ±10%, approx. 3W
  11 – 27V DC rating: 11 – 27V, approx. 3W
  110V DC rating: 85 – 150V (110V ±10% for UL), 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 ven-
tilation.

• 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  (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.

 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 en-
dure it without breakdown, however, it may shorten ap-
propriate life duration.

COMPONENT IDENTIFICATION

INSTALLATION

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

 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  DI-
MENSIONS.”

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

DIN Rail

35mm wide

Spring Loaded

DIN Rail Adaptor

Input Resistor

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