Rugged instrumentation for reliable measurement and control

Applications By Industry

Wellhead Gas Pressure - IEC61508 Certified SIL 2 Trip with AO

Upstream gas wellheads can experience extremely high pressure and surges. In order to protect personnel and equipment wellhead casing pressure is often monitored in case there is a situation where the wellhead needs to be shutdown. Traditionally simple pressure switches were used but today companies are required to implement proper safety systems.

Wellhead Gas Pressure - IEC61508 Certified SIL 2 Trip with AO

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When required to add layers of protection at the wellhead site, consider the STA Functional Safety Trip Alarm as your Safety Instrumented System logic solver when an overpressure situation occurs. The STA is simple to program and has an auxiliary analog output for retransmission to the local RTU.   The STA is SIL 2/3 capable, approved by exida and rated Class I Div 2/Zone 2.


Key attributes

  • SIL 2/3 capable
  • Easy programming
  • Class I Div 2/Zone 2 approval and local display

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