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▪ Place the digital level on a flat, smooth surface, press the "ON/OFF" and "MODE" buttons at the same time. The calibration
mode is activated and "-1-" will be shown on the LCD display.
▪ Press the "ON/OFF" button again and the LCD will flash briefly. Do not move until it changes to "-2-".
▪ Rotate the digital level 180° horizontally, press the "ON/OFF" button and the LCD display will flash briefly. Do not move
the level until the calibration is complete and the display shows normal data again.
Problem
Display does not work or is fading
Erratic display
Number skip or frozen display.
Possible cause
Low voltage, no battery or incorrect
installation of battery.
Malfunction
caused
vibrations or swinging.
Internal error.
Solution
Check and/or replace the battery.
by
strong
Replace the battery.
Remove the battery, wait 1 minute
and replace.
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