Section 10: Calibrating the Model 9100: Insulation Resistance Function
10.4-55
Final Width = 215mm
10.4.9.6
Calibration Procedure
1. Select the required hardware configuration by setting the 9100 output to a suitable
value that uses the hardware configuration.
2. Set the insulation tester to the appropriate measurement range (note that the '1000V'
range will provide best accuracy when calibrating the 9100).
3. Press the 9100 TARGET softkey to display the hardware configuration's target
selection screen.
4. Press the FACTOR softkey corresponding to the required target value to display the
calibration screen for this value.
5. If the displayed target value is not the same as the value of your standard resistor for
this calibration point, press the TAB key to position the cursor on the target value and
edit this value to that of your standard resistor.
6. Press the TRANSFER softkey to transfer the target calibration point to the 9100
output control display.
7. Connect the insulation tester to the standard resistor, press the TEST button and note
its reading (allow for the settling time of the insulation test meter).
8. Release the TEST button and reconnect the insulation tester to the 9100.
9. Press the ON key to turn the 9100 output on. Press the TEST button on the insulation
tester and note the reading.
10. Adjust the 9100 output amplitude until the reading on the insulation tester is the same
as that noted in step (7) (allowing for the settling time of the insulation test meter).
11. When you are satisfied with the measurement, press the CALIB softkey to generate
and implement the correction factor required by the 9100.
12. Press the OFF key to turn the 9100 output off.
13. Repeat steps (2) through (12) for both of the target factor values displayed in the target
selection screen.
14. Repeat steps (1) through (13) for each of the hardware configurations detailed in the
table opposite.