71X Series
Calibration Manual
36
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. Press the
I key on the 714 Calibrator to indicate:
OUPUT 0.00 mV
3. On the 714, press the large [ and { scroll keys to source the voltages in Table
51 while verifying the readings on the Fluke 8508A.
Table 51. 714 Thermocouple Source Verification (mA)
Fluke 714 Fluke 8508A
-10.00 mV -10.012 to -9.988 mV
30.00 mV 29.985 to 30.025 mV
75.00 mV 74.979 to 75.021 mV
4. Press the T 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, press the large
[ and
{ scroll keys to source the temperatures in Table 52 while verifying the readings
on the 5520A:
Table 52. 714 Thermocouple Source Verification (Temperature)
Fluke 714 Fluke 5520A
-200.0 °C -200.6 °C to -199.4 °C
0.0 °C -0.4 °C to +0.4 °C
800.00 °C 799.6 °C to 800.4 °C
1200 °C 1199.5 °C to 1200.5 °C
The 714 verification test is now complete.
715 Verification (Earlier than V2.0)
DC Voltage Source Verification
1. On the 715 Calibrator turn the green O key on.
2. Press the I and the V key so that the display indicates:
OUTPUT 0.000 V
3. Connect test leads from the Fluke 8508A input HI & LO jacks to the voltage jacks on
the 715 Calibrator (black to COM and red to V).
4. Using the large [ scroll button of the 715 Calibrator, press to step to the voltages
in Table 53, verifying the output on the Fluke 8508A: