Functional Safety 2016

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