8d (edited) • Case Studies
Case Study 001 – Legacy SIS Assessment
A new case study has been added to the classroom.
Scenario:
A 1998 installed SIS with unknown diagnostic coverage is still in service.
The asset owner believes it achieves SIL2 based on vendor documentation.
Your task:
Determine whether the claim is credible.
Full case study here:
Questions:
• What is the first thing you would check?
• How would you deal with missing failure rate data?
• Would you accept prior-use evidence?
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Case Study 001 – Legacy SIS Assessment
skool.com/functionalsafety
IEC 61508 SIL verification tool + peer decision support for functional safety engineers. Premium: SILVerify + FSMS templates + live Q&A. $59/month
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