TechStar Blog

Heater Differential Temperature Monitoring and Alarming Using Associated IS

Posted by TechStar on Jan 23, 2018 9:00:00 AM

ChallengeMeasure inlet and outlet temperature of a process heater using existing three-wire RTDs and provide a 4-20mA process variable signal, representing the differential temperature across the heater, to a local alarm trip for heater protection and share that differential temperature signal with the Basic Process Control System (BPCS). The measurements are in a hazardous area and plant standards require the use of a certified IS system.

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Topics: Moore Industries, Differential Temperature Monitoring