CAS AD series - CHAPTER-II CALIBRATIONS; A. SET THE CALIBRATION MODE

CHAPTER-II THE CALIBRATIONS
A. SET THE CALIBRATION MODE
The CAL switch is located underneath of the hole left of the upper case.
1. Remove a seal cover.
2. Slide CAL switch to the CAL position.
3. Plug into the AC outlet.
-> The display shows "CAL" three times.