Meridium’s SIS (Safety Instrumented System) Management module, based on international industry standards such as ISA 84/IEC 61511 and IEC 61508, addresses the need to maintain and manage the reliability and performance of critical process instrumentation and safety instrumented systems (SIS), as well as address compliance requirements.

Meridium SIS Management provides a means of defining the safety/protective instrumented functions, which are evaluated and assigned a safety integrity level (SIL), and focuses primarily on SIL assessments, SIL validation, Proof Testing and Reliability Analysis. The SIL can be assessed by risk matrix or Layer of Protection Analysis. When Meridium SIS Management is used in conjunction with Meridium’s Hazards Analysis application, the instrumented functions and risk assessments can be carried over from Hazards and Operability (HAZOP) or What-If analyses.

Meridium also has integrated exida’s Safety Equipment Reliability Handbook database for quick lookup and application of detailed failure rates of thousands of standard instruments. The system then calculates the resulting Probability of Failure on Demand Average, Probability of Failure per Hour, and spurious trip rates using exida’s TUV-certified Markov modeling tool.

As an integrated solution with Meridium APM, SIS Management enables a closed loop process for SIS life cycle management.