4 wire pt100 wiring diagram

Pt100 Wiring for your industrial temperature sensors. When specifying a thermocouple or Pt100 it is important to positively identify which sensor you are using as they are not interchangeable. It is worth pointing out here that in general, a Pt100 will have tails colour coded Red and White. Clearly if you have three or four tails then the sensor is clearly a Pt100 of either a 3 wire or 4 wire.

Pt100 Wiring for your industrial temperature sensors
Pt100 Wiring for your industrial temperature sensors from worldvisionsummerfest.com

The highest measurement accuracies are only achievable with a Pt100 in a 4-wire connection. A Pt1000 measuring element in class A also offers good measurement accuracies.

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