1 Calibration Procedures
Calibration Process
6 U1231A/U1232A/U1233A Service Guide
Calibration Process
1 Prior to performing the verification tests, see the “Test
Considerations” on page 7.
2 Perform the verification tests to characterize the
multimeter; see “Performance Verification Tests” on
page 8.
3 Unsecure the multimeter for calibration; see “Calibration
Security” on page 12.
4 Prior to performing the adjustments, see the “Adjustment
considerations” on page 18.
5 Perform the adjustment procedure; see “Adjustment
procedure” on page 19.
6 Secure the multimeter against unauthorized calibration;
see “Exiting the adjustment mode” on page 26. Ensure
that the multimeter has quit the adjustment mode and is
turned off.
7 Record the new security code and calibration count in the
multimeter's maintenance records.
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