What is the impact of a short circuit in the BC wire of the thermoresistive wiring box on measurements?

2017-10-18View Original

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What is the impact of a short circuit in the BC wire of the thermoresistive wiring box on measurements?

Reply #22017-10-18

It causes measurement errors; the longer the wire, the greater the error, while a very short wire has little impact.

Reply #32017-10-18

The wiring connecting the thermistor terminals to the instrument.

Reply #42017-10-18

Is A the public terminal? If so, then there is an error in the cable resistance from the field to the control room.

Reply #52017-10-19

First of all, it should be understood that the three wires in a three-wire thermal resistor are used to eliminate the measurement errors caused by the resistance of the wiring. The impact can be imagined!

Reply #62017-10-19

The main purpose of shorting the BC wires is to eliminate the impact of line resistance on the measurements

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