Calibration Procedures 3
Keysight E3633A and E3634A Service Guide 77
Calibration Count
The calibration count feature provides an independent “serialization” of your
calibrations. You can determine the number of times that your power supply has
been calibrated. By monitoring the calibration count, you can determine whether
an unauthorized calibration has been performed. Since the value increments by
one for each calibration parameter (see Table 3-2 on the next page), a complete
calibration increases the value by 5 counts.
– The calibration count is stored in non-volatile memory and does not change
when power has been off or after a remote interface reset. Your power supply
was calibrated before it left the factory. When you receive the power supply,
read the calibration count to determine its value.
– The calibration count increments up to a maximum of 32,767 after which it
wraps around to 0. No way is provided to program or reset the calibration
count.
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