After a performance target has been selected, achievement of this target
should be verified by quantitative means. The process of performance target verification is
commonly referred to as SIL Verification. 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.
Kenexis consultants have executed over 1,000 SIS safety lifecycle projects
cumulatively, performing SIL Verification analysis for tens of thousands of individual
Safety Instrumented Functions. As a result of our vast experience in the field of SIS
engineering, Kenexis has developed advanced software tools which allow our expert
consultants to execute SIL Verification calculations more accurately and efficiently then
our competition, providing our clients with superior results at a fraction of the price.
Our proprietary equipment performance statistics database contains reliability statistics
from numerous well known and industry specific sources, ensuring that our SIL verification
calculations are accurate, providing our clients with confidence in the design and
performance of their safety instrumented system.