Waiting online, PT100 issue
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This post was last edited by Lao Siji Ah on 2017-10-31 at 14:06. Among the three thermistors in the same location, one reads about ten degrees higher; it has been determined that the issue lies with the wires. How can this be resolved? Please help
On the premise that ensuring the modifications do not affect operational conditions and do not create safety hazards. A temperature range shift of 10°C is sufficient.
Thermal resistors should be used in a three-wire or four-wire configuration, and the connection wires must not affect the measurement of the thermal resistor.
It wasn’t clear what issue with the wire causes the high display value (10℃).
Since it’s confirmed to be a cable issue, just replace the cable.
Since it’s already been determined that the issue lies with the cable, why not simply replace it?
Generally, water entering the terminal causes oxidation, which increases the resistance of the circuit; the oxidized part of the wire must be cut off. Reconnect the wires.
Changing the line should be the most direct method, right?