A Safety Integrity Level (SIL) analysis lets you assess the safety instrumented systems in your facility to ensure that they are adequately safeguarding your equipment, locations, and processes.
When you conduct an SIL analysis, you will:
Assess the level of safety integrity per instrumented function, using the GE Digital APM Risk Matrix interface or via a Layer of Protection Analysis (LOPA). Based on the defined risks, the GE Digital APM system calculates the overall SIL for the safety instrumented system.
Verify the SIL of the safety instrumented system using the SIL Verification feature, which lets you make up the safety instrumented system and calculate the ability of a protective instrument loop to meet the required SIL for that process. TheGE Digital APM system uses equations defined by International Electrotechnical Commission (IEC) to calculate the probability of failure on Demand average (PFD Avg) or probability of failure per hour (PFH).
Determine whether further safeguarding is necessary, based on the SIL maintained by those safety instrumented systems.