71X Series
Calibration Manual
60
3. Press C to go to the next calibration point. “C 75” will be displayed for 1 second
and then the input voltage.
4. Source 75.000 mV from the 5520. The unit should read approximately 75.000mV .
5. Press
C to complete mV INPUT calibration. “CHEC” will be displayed for 1
second. The new calibration constants are applied and the mV INPUT calibration can
be checked.
6. Press
C to go to the next mode.
CJC
1. In CJC Cal Mode the unit will display “C CJC” for 1 second followed by IN 0°C for
another second. Next it will display the difference between the temperature as
measured by the CJC sensor and the temperature measured by a J type thermocouple.
2. Use the 5520 with J Type thermocouple wire to input a J type thermocouple signal of
0°C with CJC on.
3. When the number displayed on the 714 is stable, press the
C to complete the
calibration.
715 Calibration (Earlier than V2.0)
mA/Volts Measure
1. On the 715 Calibrator, hold down the
V and the A keys at the same time, then
press and release the
O key.
2. When the display momentarily shows CAL , release the
V and the A keys. After
CAL shows momentarily, the 715 will display:
INPUT 0.000 mA
3. Connect two test leads from the AUX jacks of the Fluke 5520A to the middle mA
input jacks on the 715 Calibrator (black to COM jack and red to mA jack).
4. Set the Fluke 5520A to 0.00000 mA and press O.
5. Press any key on the 715 Calibrator. The display should read:
INPUT ----- mA
then change to:
INPUT 24.000 mA
6. Set the Fluke 5520A to 24.0000 mA.
7. Press any key on the 715 Calibrator. The display should read:
INPUT ----- mA
then change to:
INPUT 0.000 V
8. Connect test lead from the NORMAL output jacks of the Fluke 5520A to the voltage
jacks on the 715 Calibrator (black to COM jack and red to the V jack).
9. Set the Fluke 5520A to 0.0000 mV and press O.
10. Press any key on the 715. A relay will click and the display should read:
INPUT ----- V
then change to:
INPUT 10.000 V
11. Set the Fluke 5520A to 10.00000 V.
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