User manual

1 Calibration Procedures
Calibration Count
30 U1271A/U1272A Service Guide
Calibration Count
You can query the instrument to determine how many
adjustments have been performed.
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 reset to 0. The calibration
count can be read from the front panel after the multimeter
has been unsecured.
1 In adjustment mode, press to view the calibration
count. The primary display indicates the calibration count
value while is shown the secondary display.
2 Take note of the calibration count to keep track of the
number of calibrations that have been performed.
3 Press again to exit the calibration count mode.
NOTE
The multimeter was calibrated before it left the factory. You are
recommended to record the initial value of the calibration count once you
receive the multimeter.
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