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525B
Users Manual
3-4
Thermocouple Zero Calibration
To obtain the optimum measurement accuracy, you must perform a zero
calibration when operating the Calibrator outside of the ambient temperature range
of 18 ºC to 28 ºC. The zero calibration must be performed with the Calibrator
thermally stable at the ambient temperature of operation.
To perform a thermocouple zero calibration:
1. Insert the supplied Thermocouple Shorting Jumper in the TC input/output
connector. One pin is wider than the other.
2. Allow time for the connection to become thermally stable.
3. Press to select TC mode.
4. If necessary, press to put the Calibrator in TC IN mode.
5. Press to select mV/ºC.
6. If the display does not read 0.000 mV, press to zero the Calibrator.
Note
Offset values within the range of
±
1.000 mV can be zeroed out of the
measurement.
1.888.610.7664 sales@GlobalTestSupply.com
Fluke-Direct.com
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