Answer / carl_ellis

Any thermocouple measuement requires 2 temperature measurements
- hot junction measurement
- cold junction measurement

A cold junction is created at the point where
non-compensation wire is connected to the thermocouple wire.

A measurement without compensation wire AND without a
corresponding cold junction measurement is not valid.

The only way to take a K type thermocouple measurement (or
any type thermocouple measurement) without compensating
cable is to use a temperature transmitter configured for the
type of thermocouple because the transmitter will perform
the cold junction measurement at its wiring terminals.

Carl Ellis
Measure First

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