34410A/11A/L4411A Service Guide 79
Calibration Procedures 3
Using the Remote Interface for Adjustments
All adjustments can be made using the remote interface. You must use the
remote interface for the L4411A. Commands used to perform the
adjustments are listed in CALibration subsystem of the
34410A/11A/L4411A Programmer’s Reference.
Selecting the Adjustment Mode
Use the CALibration:ADC? query to begin the ADC calibration. The
repsonse to this query indicates a succedssful adjustment (0) or a failure
(1). Following the ADC calibration, use the measurement commands to set
the DMM measurement parameters and functions for the mode being
calibrated.
Entering Adjustment Values
To enter a calibration value from the remote interface use the
CALibration:VALue <value> command followed by the CALibration?
query. The response to the query indicates whether the adjustment is
valid.
Storing the Calibration Constants
To store the calibration values in non-volatile memory, use the
CALibration:STORe command.
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 on any
module by turning off the power. 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. A list of the possible
calibration errors is given on page 109.
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