Agilent Technologies E3640A User Manual page 185

General Calibration/Adjustment Procedure
5 Save the changes and select the middle voltage calibration point.
6 Enter the reading you obtained from the DVM by using the knob and
resolution selection keys.
7 Save the changes and select the high voltage calibration point.
8 Enter the reading you obtained from the DVM by using the knob and
resolution selection keys.
9 Save the changes and go to the OVP calibration mode.
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