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Preparation
Inserting/Replacing the Battery
Alkali-manganese batteries are recommended for the measuring tool.
– Fold open the battery lid 7 and insert the batteries. When inserting,
pay attention to the correct polarity according to the representation on
the inside of the battery compartment.
If the batteries become weak, the battery capacity indicator 3 will flash
green. The laser lines will also flash every 10 mins for approx. 5 s.
The measuring tool can be operated for approx. 1 hour after the first
flashing. If the batteries become empty, the laser lines will flash again
before automatic shutoff.
Always replace all batteries at the same time. Only use batteries from
one brand and with the identical capacity.
Remove the batteries from the measuring tool when not using it for
extended periods. When storing for extended periods, the batteries
can corrode and self-discharge.
Working with the BM 3
(see figures A – G)
The L-bracket 16 of the BM 3 17 provides easy ability to properly posi-
tion the laser line or lines.
It attaches to job site surfaces as follows:
– To drywall or wood walls using No. 8 screws
– To sit on the floor using retractable feet
– To steel studs using the magnets on the back
– To ceiling grid rails using the clip functionality
It can also be used as a mini tripod.
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