User`s guide

Remarks
The CALibration:ADC? and CALibration[:ALL]? commands modify the
volatile versions of the calibration constants. You must use the
CALibration:STORe command to save these constants in non-volatile
memory at the end of your calibration, or the changes will be lost.
Once the calibration constants are stored in non-volatile calibration
memory, they will not change when power has been off, after a Factory
Reset (*RST command), or after an Instrument Preset (SYSTem:PRESet
command).