2Service
134 Keysight 53210A/53220A/53230A Assembly Level Service Guide
5 Press the Utility key:
– Display softkey annunciators show:
6 Press the Cal/AutoCal softkey to display the calibrate options.
– Display shows:
– Cal Count shows the total number of times: (1) a successful calibration step
has been completed; (2) calibration data is downloaded; (3) the Cal String
or Secure Code is updated; (4) the counter firmware is updated. It is not
operator-modifiable and rolls over at (2
32
-1). Since the unit is calibrated
several times during manufacture, the Cal Count will not be zero when
shipped.