Connecting a 3 wire rtd to a 4 wire rtd instument can cause serious errors or simply not work at all depending on the instrument circuitry.
3 wire rtd sensor connection.
The following connection diagrams illustrate how to connect various rtd types to your daq device.
Difference between 2 wire rtd 3 wire rtd and 4 wire rtd s rtds resistance temperature detectors are offered with 2 3 or 4 lead configuration.
Maybe you know that in resistance and rtd resistance temperature detector measurement you can use 2 3 or 4 wires but maybe you don t really remember what the difference is between them or how these connections really work.
A 2 wire rtd configuration is the most useful with high resistance sensors or in applications where a great deal of accuracy is not required.
Connect the black or white lead on the negative side for the resistive.
3 wire rtd connections the 3 wire rtd configuration is the most commonly used rtd circuit design and can be seen in industrial process and monitoring applications.
Rtd pt100 3 wire wiring diagram amazon crocsee rtd pt100 temperature sensor probe 3 wires 2m cable thermocouple 58 572 f 50 300 c 1 2 npt thread industrial scientific.
The best configuration for a specific application depends on a number of factors however the sensor configuration must match with transmitter otherwise leadwire resistance cancellation circuitry.
Collection of rtd pt100 3 wire wiring diagram.