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Sharing Process Variables: Analog Isolation

When sharing one Process Variable (PV) with multiple systems, the connection needs to be thought out carefully.  Creating a series connection for the 4-20mA signal is not a best practice for sharing the PV. The main problem in creating a series connection is when either the DCS or the PLC input is disconnected, intentionally or by accident, both the DCS and the PLC will lose the PV signal.
Published: August 23, 2017

Temperature Q&A with JR Madden: Thermocouples

Temperature Q&A with JR Madden: Thermocouples
Q: A Type K thermocouple is being used in a high temperature furnace environment for temperature measurementHowever the Type K thermocouple is drifting too much. Is there something I could do so I don't have to change it out frequently or is there another type of thermocouple I could use?
Published: May 22, 2017

A Reason to Demand Moore Reliability: TCA Thermocouple Alarm With 36 Years Continuous Service

A Reason to Demand Moore Reliability: TCA Thermocouple Alarm With 36 Years Continuous Service

Moore Industries' Director, Sales Support Matt Moren received an inquiry from a customer regarding a replacement for an Alarm Trip. The customer is a world-leading multi-billion dollar industrial gases company that has been in operation for over 75 years focusing on the industrial gases business providing atmospheric and process gases as well as related equipment for manufacturing markets including refining and petrochemical, metals, and electronics among other businesses.

Published: April 17, 2017

SPA2IS Controls and Monitors Wet Wells

Wastewater Treatment Application

SPA2IS Controls and Monitors Wet Wells
Municipalities often have several wet well locations around a city that pump waste from low lying areas up to main sewage veins that feed waste treatment plants.  Level instruments monitor the wet well level and controllers then engage the grinder pumps.  Since wet wells contain waste, volatile gasses such as methane require that these level instruments be rated for use in Class I, Div 1 environments.
Published: January 9, 2017

Burner Management System Signal Splitter Application for a Pulp and Paper Mill

Pulp and Paper Industry

Burner Management System Signal Splitter Application for a Pulp and Paper Mill

A pulp and paper mill had a black liquor BMS (Burner Management System) that per NFPA 85 requires that its safety logic system be totally independent from other logic systems.  The challenge was they required that key temperature and pressure signals also get monitored and recorded by their BPCS (Basic Process Control System). Learn how Moore Industries solved this problem.

Published: September 28, 2016
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