Intrinsically Safe Current to Pressure (I/P) Converter

Available from Coulton, the Watson Smith range of current to pressure (I/P converter) converters ensure accurate and reliable control where Intrinsically safe certification is required.


Standard models currently in stock!

Watson Smith Current to Pressure (I/P) Converters available with Intrinsically Safe certification

Type 100X

The 100X series is an open-loop, highly accurate and Fail-safe current to pressure Converter. A rugged and reliable unit which has been proven in application installations globally.
  • Reliable, rugged, open loop control
  • ATEX and FM certified units are available as Intrinsically Safe, Type N
  • Proportional I/P and E/P converters
  • Minimum vibration effects
  • IP65 environment protection
  • Mounting Bracket and Connector Included
Intrinsically safe I/P converter type 100X
Type 422

The type 422 offers fail-freeze operation in addition to conventional I/P characteristics and its rugged construction,
Vibration immunity and weatherproofing make it ideal for field application.

  • Advanced electronic control
  • Failfreeze operation (output pressure retained on power failure)
  • Vibration immune
  • IP65 environment protection
  • ATEX approved

Intrinsically safe Watson Smith type422
Type 140

The 140 proportional I/P converter uses advanced closed loop solid-state electronic control to achieve accurate, high resolution pressure control. It is available in intrinsically safe and Type n versions and its vibration immunity and IP66 weatherproof rating make it ideal for field application.

  • Advanced electronic control
  • ATEX certified
  • Explosion proof and Intrinsically safe
  • Complete Electronics Modularity For Ease of Maintenance
  • Jack Socket for On-site Monitoring
  • Fail-Safe (unit pressure falls to zero on signal failure)
  • Field replaceable filter
Triple certified intrinsically safe type 140


Are you looking for a new Watson Smith item, a replacement or just some advice? Not sure where to start? As the top UK distributor for Watson Smith we can help!

Just send us an enquiry or call us now on 01202 480 303 or email us at !

See also

Our full range of Watson Smith I/P Converters

We supply Type 100X, Type 101X , Type 140 and Type 422 usually from stock.
i to p converter sub

Our range of valve positioners

A complete range of valve positioner including pneumatic, eletro-pneumatic and digital positioners.
PMV electropneumatic sub

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