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DEVICE RESPONSE - Technology Selection
Slide 12
Challenges in Achieving Safety Instrumented Function Response Time for a Fast-Acting Process• K. Rampaul, A.
Barnwell & S. Sookhoo
Temperature
•
RTD and TC technology
considered
•
Slower response time than
level
•
Generally TC faster
response time than RTD
•
Thermowell is major
contributor to slow
response time
Level
•
dP and GWR technology
considered
•
Faster response time than
temperature
•
Generally fast response
times for both
•
Capillary for dP and filtering
for GWR increases the
response time