Thermocouple Calibration; Calibration Parameters - Fluke 1529 Chub-E4 User Manual

1529 Chub-E4 Thermometer Readout
User's Guide
9.2
9.2.1
134
2.
Connect a 10 k resistor (25 ppm accuracy) to the input and measure its
resistance. Note the average error in the measurement. Adjust the C10K
parameter by subtracting the measured error. For example, if the input is
exactly 10.00000 k and the readout shows 10.00295 k , adjust the
C10K parameter by subtracting 2.95.
3. Connect a 100 k resistor (25 ppm accuracy) to the input and measure
its resistance. Note the average error in the measurement. Adjust the
C100K parameter by subtracting the measured error. For example, if the
input is exactly 100.0000 k and the readout shows 99.9913 k , adjust
the C100K parameter by adding 8.7.
4. Record the date in the DATE parameter and set the DUE parameter to
the desired calibration interval.
5. Verify the accuracy at 0 , 4k , 10k , 40k , 100k , and 500k on
each channel.

Thermocouple Calibration

The following information is for a Thermocouple calibration. See Section 9.1
for PRT and thermistor calibrations.

Calibration Parameters

Three adjustable parameters are used for calibration of each thermocouple
channel. They are listed in Table 14, Calibration Parameters.