71X Series
Calibration Manual
32
4. Disconnect the Type J thermocouple test lead and install the two-wire copper test
lead from the Fluke 5520A NORMAL jacks to the 714 Calibrator TC jack, observing
correct polarity.
5. On the 714 push the
key until "mV" is shown on the display.
6. Set the Fluke 5520A to the settings in Table 43, and verify the display readings on
the 714 Calibrator.
Table 43. 714 Thermocouple Measure Verification (mA)
Fluke 5520A Fluke 714
-10.0000 mV -10.03 to -9.97 mV
30.0000 mV 29.97 to 30.03 mV
75.0000 mV 74.97 to 75.03 mV
7. Disconnect the copper test lead from the Fluke 5520A.
Thermocouple Source Verification
1. Set the Fluke 8508A to VDC and 200 mV range. Connect the two-wire copper test
lead from the TC jack on the 714 Calibrator to the INPUT jacks of the Fluke 8508A.
2. Push the
key on the 714 Calibrator to indicate:
OUPUT 0.00 mV
3. On the 714, push the large and scroll keys to source the voltages in Table 44
while verifying the readings on the Fluke 8508A.
Table 44. 714 Thermocouple Source Verification (mA)
Fluke 714 Fluke 8508A
-10.00 mV -10.028 to -9.972 mV
30.00 mV 29.972 to 30.028 mV
75.00 mV 74.972 to 75.028 mV
4. Push the key on the 714 Calibrator to TYPE J and disconnect the copper wire
test lead.
5. Connect the Type J thermocouple test lead from the Fluke 5520A TC jack to the TC
jack on the 714 Calibrator, observing correct polarity.
6. Set the Fluke 5520A to U with 'Type J' input. On the 714, push the large
and
scroll keys to source the temperatures in Table 45 while verifying the readings on
the 5520A:
Table 45. 714 Thermocouple Source Verification (Temperature)
Fluke 714 Fluke 5520A
0.0 °C -0.70 °C to +0.70 °C
-200.0 °C -200.94 °C to -199.06 °C
1200 °C 1199.33 °C to 1200.67 °C
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