Functional Safety 2016

CASE STUDY

Slide 3

Challenges in Achieving Safety Instrumented Function Response Time for a Fast-Acting Process• K. Rampaul, A.

Barnwell & S. Sookhoo

Description Example

Hazard

Cold temperature embrittlement

risk due to low temperature

Cause

Several cases, some developing

more rapidly than others

PST

30 Seconds

Mitigation

Safety instrumented function

involving closure of ESD valves