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Heater Differential Temperature Monitoring and Alarming Using Associated IS

Heater Differential Temperature Monitoring and Alarming Using Associated IS

Challenge: Measure 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.

Published: October 23, 2017

Alumina Refinery: Overpressure Protection of a Filter Vessel

Mining & Metal Refining Industry

Alumina Refinery: Overpressure Protection of a Filter Vessel
The process of converting bauxite to alumina for aluminium metal refining involves a complex manufacturing process.  Much of this process requires critical temperature and pressure control, which if left unchecked could result in catastrophic consequences. Learn how Moore Industries solved this problem for an alumina refinery in Australia.
Published: October 20, 2017

EHELP: Improving Long Term RTD Temperature Measurement Stability

EHELP: Improving Long Term RTD Temperature Measurement Stability
Q: What are some ways to improve the long-term stability of my RTD temperature measurement?
Published: October 18, 2017

EHELP: I need to boost a 4-20mA HART signal...

EHELP: I need to boost a 4-20mA HART signal...

Q. I need to boost a 4-20mA signal to get a Fisher FIELDVIEW DVC6200 digital valve controller to respond to a control signal. What could I use?

Published: October 18, 2017

SIY: PC-Programmable Signal Isolator/Converter

SIY: PC-Programmable Signal Isolator/Converter
Moore Industries’ SIY PC-Programmable Signal Isolator/Converter combines smart digital technology with advanced analog operation to deliver superior reliability, accuracy, and ease of use.
Published: October 12, 2017
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