130 Agilent U1251A/U1252A User’s and Service Guide
7 Performance Tests and Calibration
Use the Performance Verification Tests to verify the mea-
surement performance of the instrument. The performance
verification tests use the instrument’s specifications listed in
the U1251A/U1252A Data Sheet.
The performance verification tests are recommended as
acceptance tests when you first receive the instrument. The
acceptance test results should be compared against the one
year test limits. After acceptance, you should repeat the per-
formance verification tests at every calibration interval.
If the multimeter fails the performance verification tests,
adjustment or repair is required. Adjustment is recom-
mended at every calibration interval. If adjustment is not
made, you must establish a ‘guard band’, using not more
than 80% of the specifications, as the verification limits.
Make sure you have read the “Test Considerations” on page 128 before
doing the performance verification tests.
Performance Verification Tests
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