Calibration Count - Keysight U1242C Service Manual

1 Calibration Procedures

Calibration Count

You can query the multimeter to determine how many adjustments have been
performed.
The multimeter has been calibrated before it left the factory. You are
NOTE
recommended to record the initial value of the calibration count once you
receive the multimeter.
The calibration count feature provides an independent "serialization" of your
calibrations. You can determine the number of times that your multimeter has
been calibrated. By monitoring the calibration count, you can determine if an
unauthorized calibration has been performed. The value is increased by one for
each calibration.
The calibration count is stored in nonvolatile memory and does not change with
power ON/OFF or after a remote interface reset. Your multimeter was calibrated
before it left the factory. When you receive your multimeter, take note of the
calibration counts as a record for maintenance.
The calibration count increases by one for each calibration point, from
to the maximum
count will reset to
has been unsecured. The calibration count cannot be programmed or reset. It is
an independent electronic calibration "serialization" value.
1 Press
2 Take note of the calibration count to keep track of the number of calibrations
3 Press
52
MaxMin
for more than 1 second in the adjustment mode to view the
Hz

calibration count.

that have been performed.
MaxMin
for more than 1 second to exit the calibration count mode.
Hz
. Once the maximum calibration count is reached, the
. The calibration count can be read after the multimeter
Keysight U1241C/U1242C Service Guide
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