Keysight U1241B, Руководство пользователя и сервисное руководство, Страница: 80 / 83

5 Performance Tests and Calibration
80 Keysight U1241B and U1242B User’s and Service Guide
Calibration Count
The multimeter provides the calibration count information for users to access
through front panel operation. Note that the multimeter was calibrated prior to
shipping out to users. Users are recommended to record the initial value of the
calibration count once receiving the multimeter.
The count value increases by one for each calibration point, from 0000 up to the
maximum of 19999. After the maximum count, the calibration count will be reset
to 0. The calibration count can be read from the front panel after the multimeter
has been unsecured, see the following steps:
1 In adjustment mode, press and hold for more than one second to view
the calibration count viewing mode. The primary display indicates the
calibration count value while the secondary display indicates “ Cnt ”.
2 Take note of the calibration count to keep track of the number of calibration
counts that has been performed.
3 Press and hold for more than one second to exit the calibration count
mode.
Calibration Errors
The following error codes indicate failures that may occur during a calibration.
The error code is displayed on secondary display.
Table 5-5 Calibration error codes
Code Descriptions
200 Calibration error: Calibration mode is secured
E02 Calibration error: Invalid secure code
E03 Calibration error: Invalid serial number code
E04 Calibration error: Calibration aborted
E05 Calibration error: Value out of range
E06 Calibration error: Signal measurement out of range
E07 Calibration error: Frequency out of range
E08 EEPROM write failure