Control Valves with Diagnostic Functions in Safety-instrumented Systems

Authors

  • Thomas Karte Samson
  • Bernd SchÄfer Hima

DOI:

https://doi.org/10.17560/atp.v54i06.2170

Abstract

Implementing the safety life cycle according to IEC 61511 and IEC 61508 is decisive in preventing systematic failures in field units installed in safety-instrumented systems. In these standards, clear requirements for defined procedures, regular testing, documentation of test results, failure analysis and resulting actions are stipulated. Modern instrumentation is an important means of implementing the safety life cycle. In the field of control valves the required accessories are readily available on the market. In addition to the higher degree of automation for validation, proof testing and online testing while a process is running, these control valves may even be simpler in their hook-up.

Published

2013-05-21