Keysight U1241AN, User'S And Service Manual

Page: 71 / 85

Performance Tests and Calibration 5
Keysight U1241AN User’s and Service Guide 71
Entering Adjustment Values
1 Press and to step through each character in the primary display.
2 Press and to change the value of the corresponding character from
digits 0 through 9.
3 Apply the respective corresponding input signal from the recommended test
equipment in Table 5-1 .
4 Press (Save) when done to start calibration.
Adjustment Considerations
1 Allow the multimeter to warm up and stabilize for five minutes before
performing the adjustments.
2 Assure that the low battery indicator does not appear during the adjustment.
Replace the batteries to avoid inaccurate readings.
3 Consider the thermal effects of the test leads connected to the calibrator and
multimeter. It is recommended to wait for one minute before start performing
the calibration.
4 During ambient temperature adjustment, ensure that the multimeter has been
turned on for at least one hour with K-type thermocouple connected between
the multimeter and calibration source.
NOTE
Ensure that the accuracy of the input signal adheres to the Valid Adjustment
Input Values in Table 5-5 .
NOTE
After each adjustment, the secondary display shows PAS . If the calibration fails,
the multimeter sounds a beep, and an error number is shown in the secondary
display. Calibration error messages are described in “Calibration Errors” on
page 80.