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HDM 40
4
1
2
3
Inserting / Replacing Batteries
Remove the battery cover, insert the battery correctly. Pay attention to correct polarity.
Close the battery compartment.
Replace the battery when symbol constantly blinks in the display.
Batteries should be removed in case of danger of corrosion, if the device will not be used for a long time.
MENU FUNCTIONS
Swtich on and off
Press the button (1) to switch on the instrument and laser. Press and hold key for about 2 seconds to start continuous measuring.
The device also switches off automatically after 3 minutes of inactivity i.e. no key is pressed within that interval. To switch off the
instrument press and hold button (5) 2 sec.
Reference Setting
Default reference setting is from the rear of the device. Press the button (4) to set the reference the front or the rear. When the end-
piece is folded out fully, the reference rear is set. You will see the reference symbol on the display.
Display
1 Laser ON
2 Reference (front/rear)
5
3 Area /volume/ Pythagorean
4 Battery display
6
5 Units with exponents ( 2/3 )
6 Line 1
7 Line 2
7
5
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