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What are the technical tests used to identify RTD or Thermocouple sensor?

Sensors
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Question added by Hussam Adnan, CPMgr , Maintenance Manager , Teeba Investment for Developed Food Processing Co.
Date Posted: 2014/03/14
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Hussam Adnan, CPMgr
by Hussam Adnan, CPMgr , Maintenance Manager , Teeba Investment for Developed Food Processing Co.

By Resistivity test where the RTD will have a measurable resistance ( for RTD PT100 =100 ohm at0 C ) while thermocouple will have a very small resistance for the metals of the thermocouple!

 

Thermocouples always have two wires while RTD may have three or four wires.

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