When Safety Instrumented Systems (SIS) were first adopted by the process industries in the mid 1980s, they typically were Triple Modular Redundant (TMR) systems. These systems were significantly more ...
ISA recently published Safety Instrumented System Design: A Life-Cycle Approach by Paul Gruhn PE, CFSE, and Simon Lucchini, CFSE, MIEAust CPEng. In this Q&A feature, both authors highlight the focus, ...
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