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place can be changed, the up and down key can change value. After changing,
press CONFIRM to keep the time and date which have been changed. If the time
and date which have been changed do not need to be kept, press return key, logout
the time and date setting interface.
3.5.3 The process of calibration setting
After picking on the calibration setting menu, the system would enter into the
password interface firstly, and put into password 88, and then enter into the
calibration interface. On the calibration interface, the zero and span can be set,
and the calibration result can be checked.
The menu of the calibration interface
On the calibration interface menu, choose 1 ZERO CAL, and then enter into
the zero calibration, when the display number is steady, press confirmation, and
the zero calibration is completed.
Zero calibration
