71X Series
Calibration Manual
68
3. The calibration will be performed in the following order:
V INPUT
mV INPUT
mA INPUT
V OUTPUT
mV OUTPUT
mA OUTPUT
V INPUT
1. In V INPUT mode, the unit displays “CAL 0” for 1 second followed by the input
voltage using the default calibration.
2. Connect the test leads from the 5520 main Jacks to the V and COM and source 0.0 V.
The unit should read 0.000V ±0.010V.
3. Push
to go to the next calibration point. “CAL 25” will be displayed for 1
second and then the input voltage.
4. Source 25V from the 5520. The unit should read 25.000V with 5% tolerance.
5. Push
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.
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
voltage using the default calibration.
2. Source 0.0 mV from 5520. The unit should read 0.00mV ±0.10mV.
3. Push
to go to the next calibration point. “C 200” will be displayed for 1 second
and then the input voltage.
4. Source 200mV from the 5520. The unit should read 200.00V with 5% tolerance.
5. Push
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. Push
to go to the next mode
mA INPUT
1. In mA INPUT mode, the unit displays “CAL 0” for 1 second followed by the input
mA using the default calibration.
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
±0.010mA.
4. Push
to go to the next calibration point. “CAL24” will be displayed for 1
second and then the input mA.
5. Source 24mA from the 5520. The unit should read 24.000mA with 5% tolerance.
6. Push
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.
7. Set the 5520 to STBY mode and push
to go to the next mode.
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