Calibration Procedures 4
Keysight 34970A/34972A Service Guide 65
Closed-Case Electronic Calibration
The instrument features closed-case electronic calibration. No internal
mechanical adjustments are required. The instrument calculates correction
factors based upon the input reference value you set. The new correction factors
are stored in non-volatile memory until the next calibration adjustment is
performed. Non-volatile EEPROM calibration memory does not change when
power has been off or after a remote interface reset.