130 Agilent U1251A/U1252A User’s and Service Guide
7 Performance Tests and Calibration
Performance Verification Tests
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 1
year test limits. After acceptance, you should repeat the per-
formance verification tests at every calibration interval.
If the instrument fails performance verification, adjustment
or repair is required. Adjustment is recommended 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.
NOTE
Make sure you have read “Test Considerations” on page 128 before doing
the performance verification tests.
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