Safety Instrumented Systems (SIS) are flexible and effective tools that implement the Safety Instrumented Functions (SIF) to safeguard process plants. A Safety Instrumented System can be configured in a variety of ways using sensors, logic solvers, and final elements to meet process goals and performance targets.
Kenexis helps our clients maximize the effectiveness of their SIS by providing expert guidance and engineering consulting services throughout the process from design to verification and ongoing integrity programs.
Our services include expert Process Hazard Analysis (PHA) facilitators to develop your Hazard and Operability Study (HAZOP) to determine process scenarios that may require additional protection. Safety Integrity Level (SIL) determination using Layer of Protection Analysis (LOPA) to establish requirements for each Safety Instrumented Function (SIF) for every process scenario of concern identified in the HAZOP. Rolling all this up into the Safety Requirement Specifications (SRS) for the configuration of SIS, its test planning and continuing performance assessments and auditing including reevaluation of the SRS after change.