RECOMMENDATIONS
• Evaluate process measurement method, technology,
installation
• Factor in SIFRT in set-point determination, diagnostics,
alarm priority selection and operator response
• Focus on elements with slower response times
• Evaluate SIFRT during procurement - Supplier guarantee
Achieving
SIFRT
• Installation testing to include validation of end-to-end
SIF response time
• Periodic testing of SIFRT
• SIFRT target and performance results documented
Operations &
Maintenance
Slide 23
Challenges in Achieving Safety Instrumented Function Response Time for a Fast-Acting Process• K. Rampaul, A., A.
Barnwell, S. Sookhoo