Performance Tests and Calibration 6
Keysight U1251B and U1252B User’s and Service Guide 175
Finishing the Adjustment
1 Remove all the shorting plugs and connectors from the instrument.
2 Record the new Calibration Count.
3 Press and simultaneously to exit the Adjustment Mode. Power
off and on again. The instrument will then be secured.
To Read the Calibration Count
You can query the instrument to determine how many calibrations have been
performed.
When you receive your instrument, read the count to determine its initial value.
The count value increases by one for each calibration point, and a complete
calibration will increase the value by many counts. The calibration count
increments up to a maximum of 65535 after which it is set at 0. The calibration
count can be read from the front panel after the instrument has been unsecured.
Use the following procedure to read the calibration count from the front panel.
1 Press Adjustment Mode. The primary display shows the calibration count.
2 Take note of the count.
3 Press again to exit the calibration count mode.
NOTE
Your instrument was calibrated before it left the factory.
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