Calibration Procedures 4
Keysight 34970A/34972A Service Guide 75
Calibration Procedure
The following procedure is the recommended method to complete an instrument
calibration.
1 Read Test Considerations (page 76).
2 Unsecure the instrument for calibration (page 52).
3 Perform the verification tests to characterize the instrument (incoming data).
4 Perform the zero adjustment procedures.
5 Perform the gain adjustment procedures. Perform the verification tests to
verify the adjustments (outgoing data).
6 Secure the instrument against calibration.
7 Note the new security code and calibration count in the instrument’s
maintenance records.
Aborting a Calibration in Progress
Sometimes it may be necessary to abort a calibration after the procedure has
already been initiated. You can abort a calibration at any time by turning off the
power. When performing a calibration from the remote interface, you can abort a
calibration by issuing a remote interface device clear message.
If you abort a calibration in progress when the instrument is attempting to
write new calibration constants to EEPROM, you may lose all calibration
constants for the function. Typically, upon re-applying power, the instrument
will report error 705 Cal:Aborted. You may also generate errors 740 through
746. If this occurs, you should not use the instrument until a complete
re-adjustment has been performed.
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