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Calibration Process
The following general procedure is the recommended method to complete a full
instrument calibration.
1 Read
2 Perform the verification tests to characterize the instrument (incoming data).
3 Unsecure the instrument for calibration
4 Perform the DMM adjustment procedures
5 Perform the DAC adjustment procedures if either the 34951A
6 Secure the instrument against calibration.
7 Note the new security code and calibration count in the instrument's
The 34951A 4-Ch Isolated DAC is intended to be adjusted frequently to
NOTE
compensate for changes in the module's environment. These adjustments can
be made either volatile or non-volatile. See
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 on the internal DMM or the
34951A 4-Ch Isolated DAC by issuing a remote interface device clear message.
You can abort a calibration on the 34952A Multifunction Module by sending the
CALibration:ABORt command.
If you abort a calibration in progress when the instrument is attempting to write
CAUTION
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. For a list of calibration error numbers, see
Keysight 34980A Service Guide
"DMM Test Considerations"
Considerations"
on page 55.
page 50).
Isolated DAC Module"
on page 61) is installed.
maintenance records.
on page 42 and
("Calibration Security"
("Internal DMM Adjustments"
on page 56) or 34952A
page 56
Calibration Procedures
"Plug-in Module Test
on page 35).
("34951A 4-Ch
("34952A Multifunction Module"
for details.
page
76.
3
on
37
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