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71X Series
Calibration Manual
3. The calibration will be performed in the following order:
V INPUT
1. In V INPUT mode, the unit displays "CAL 0" for 1 second followed by the input
2. Connect the test leads from the 5520 main Jacks to the V and COM and source 0.0 V.
3. Push
4. Source 25V from the 5520. The unit should read 25.000V with 5% tolerance.
5. Push
6. Set the 5520 to 0.0 and push mA_% key to go to the next mode.
mV INPUT
1. In mV INPUT mode, the unit displays "CAL 0" for 1 second followed by the input
2. Source 0.0 mV from 5520. The unit should read 0.00mV ±0.10mV.
3. Push
4. Source 200mV from the 5520. The unit should read 200.00V with 5% tolerance.
5. Push
6. Push
mA INPUT
1. In mA INPUT mode, the unit displays "CAL 0" for 1 second followed by the input
2. Move the red test lead to mA jack.
3. Source 0.0 mA from 5520 using the AUX jacks. The unit should read 0.000mA
4. Push
5. Source 24mA from the 5520. The unit should read 24.000mA with 5% tolerance.
6. Push
7. Set the 5520 to STBY mode and push
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V INPUT
mV INPUT
mA INPUT
V OUTPUT
mV OUTPUT
mA OUTPUT
voltage using the default calibration.
The unit should read 0.000V ±0.010V.
to go to the next calibration point. "CAL 25" will be displayed for 1
second and then the input voltage.
to complete V INPUT calibration. "CHEC" will be displayed for 1 second.
The new calibration constants are applied and the V INPUT calibration can be
checked.
voltage using the default calibration.
to go to the next calibration point. "C 200" will be displayed for 1 second
and then the input voltage.
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.
to go to the next mode
mA using the default calibration.
±0.010mA.
to go to the next calibration point. "CAL24" will be displayed for 1
second and then the input mA.
to complete mA INPUT calibration. "CHEC" will be displayed for 1
second. The new calibration constants are applied and the mA INPUT calibration can
be checked.
Fluke-Direct
to go to the next mode.
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