Engineering services designed to assist SIS Engineers, I&C, and PSM personnel develop and maintain the safety systems that detect out-of-control process conditions, and automatically return the process to a safe state in accordance with ISA/IEC 61511 Functional Safety – Safety Instrumented Systems for the Process Industry Sector and OSHA Process Safety Management (PSM) Standard 29 CFR 1910.119 standards .
SIL Verification includes determination of probability of failure on demand, spurious trip rates, and other performance metrics. SIL Verification considers the type of equipment employed, advanced voting arrangements, diagnostics, and testing frequency. Once SIL Selection (performance target) is completed (usually using LOPA), achievement of the SIL Selection is verified using SIL Verification.
SIL Verification can be calculated easily with our database in Vertigo™ SIS Safety Lifecycle software.