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Refinery AC Motor Load Measurements

Refinery AC Motor Load Measurements
Petrochem facilities have hundreds of motors installed throughout various processing units.  Monitoring of these motors for more precise control or protection is paramount.
Published: January 31, 2019

EHELP: SIL 2 Capable Alarm Trip/Relay

EHELP: SIL 2 Capable Alarm Trip/Relay
Q: I need a relay with a SIL 2 rating. Does your SPA2 have a SIL 2 rating?
Published: January 24, 2019

Detailed Description of Converting Dry Contacts to Analog Signals

Before converting a dry contact to an analog signal it is important to first determine what signal levels you will need.  Since the TMZ accepts a 4-20mA signal then we can choose any current values within 4mA and 20mA.  For this application we chose 'NOT FULL' to be equal to 20mA, and “NEAR FULL” to be represented at 4mA. 

 

Published: October 11, 2017

Remote Level Monitoring in Tank Farms

Remote Level Monitoring in Tank Farms
A Moore Industries customer wanted to monitor levels in new storage tanks that are remotely located on their tank farm and not connected to their existing MODBUS network. 
Published: October 11, 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
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