ADLINK USB-2405 - Manual (Page 52)

42 Calibration
4.3 Saving Calibration Constants
Factory-calibrated constants are permanently stored in a bank of
the onboard EEPROM and cannot be modified. When the device
is recalibrated through auto-calibration, the software stores the
new constants in a user-configurable section of the EEPROM. To
restore original factory calibration settings, the software can copy
the factory-calibrated constants to the user-configurable section of
the EEPROM. When auto-calibration is complete, the new calibra-
tion constants can be saved to the user-configurable banks in the
EEPROM.