Meridium’s SIS 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. The primary areas integrated into Meridium SIS Management are safety integrity level (SIL) assessment, SIL validation, proof testing and reliability analysis. 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 PFD Average, PFH 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 lifecycle management 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.