Type 140 - Fail Safe I/P Converter for ATEX Environments

The Type 140 I/P Converter from IMI Watson Smith is suitable for use in Hazardous Area environments. It provides a fail safe function, which ensures that the output pressure falls to zero in the event of power failure. A triple certified unit is available which provides certification in Flame Proof (ATEX Ex d IIC T4 Gb), Intrinsically Safe (ATEX Ex ia IIC T4 Ga) and Type nL, nA (ATEX Ex nA nL IIC T5 Gc) environments. The Type 140 offers a high flow rate, high performance and fast response in the most demanding of applications.
  • Fail Safe I/P Converter
  • Triple Certified ATEX (Ex d, Ex ia, Ex nA, nL)
  • Field replaceable filter
  • Weatherproof (IP66, NEMA 4X)
  • Control Input: 4…20mA
  • High performance & accuracy
  • Fast response, minimal temperature effect
  • High Flow capacity
  • Supply Pressure: 1.2…10.3 Bar
  • Output Pressure: 0.2…2 Bar (3…30 psi)
Technical data

Watson Smith

Body Material


Operating Pressure

0.2. . .1 Bar, 3. . .15 psi

Operating Temperature

'-40. . .80°C


Fail Safe

Protection Class

ATEX (Triple Certified Ex d, Ex ia and Type nA nL)

Seal Material



1/4" NPT

Download data sheet

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