3 Calibration Procedures
96 Keysight 34420A Service Guide
Calibration Procedure
The adjustment procedures use the CALibrate menu to initiate internal procedures
to generate and set calibration constants. The general menu procedure is the
same for all calibration setups.
Before beginning any calibration procedure the meter must be unsecured for
calibration (see page 70). The following procedure is the recommended method to
complete a meter calibration.
–Read “Test Considerations” on page 78.
– “To Unsecure the Meter for Calibration” on page 70.
– Perform the Zero Calibration procedure (page 81).
– Perform the Gain Calibration procedure (page 84).
– Secure the meter against calibration.
– Note the new security code and calibration count in the meter's maintenance
records.
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