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– Rotate the measuring tool 180° and posi-
tion it on the other side of the door open-
ing, directly behind point II. Allow the mea-
suring tool to level in and align the vertical
laser line in such a way that its center pass-
es through points I and II exactly.
– Mark the center of the laser line on the up-
per edge of the door opening as point IV.
Working with the Magnetic
Mounting Bracket LB 10
(see figures D−G)
You can secure the measuring tool on
vertical surfaces or magnetisable materials
using the magnetic mounting bracket (10).
In conjunction with the ceiling clip (14),
the measuring tool can also be aligned
vertically.
Place the measuring tool with the 1/4"
tripod mount (7) on the 1/4" screw (12)
of the bracket and screw it tight.
Attachment options for the magnetic
mounting bracket (10):
– U s i n g a c o m m e r c i a l l y a v a i l a b l e
fastening screw, it can be attached via
the screw hole (13) to drywall or wood
(see figure E)
– Using the magnets (11), it can be
attached to metallic surfaces (see
figure F)
– Using the ceiling clip (14), it can be
attached to crown mouldings (see
figure G)
2610059938 GLL50-40G 02-21.indd 14
– The discrepancy d between the two marked
– Measure the height of the door opening.
• Only the center of the laser line must be
Use with Attachments
Roughly align the magnetic mounting
bracket (10) before switching on the
measuring tool.
The laser target plate (16) improves
visibility of the laser beam in unfavourable
conditions and at greater distances.
The reflective half of the laser target plate
(16) improves visibility of the laser line.
The transparent half enables the laser line
to be seen from behind the laser target
plate.
A tripod offers a stable, height-adjustable
support surface for measuring. Place the
measuring tool with the 1/4" tripod mount
(7) on the thread of the tripod (17) or a
conventional camera tripod. Tighten the
measuring tool using the locking screw of
the tripod.
Roughly align the tripod before switching
on the measuring tool.
-14-
points III and IV reveals the actual vertical
deviation of the measuring tool.
You can calculate the maximum permitted
deviation as follows:
Doubled height of the door opening ×
0.0048 in/ft (0.4 mm/m)
Example: At a door opening height of 6.5 ft
(2 m), the maximum deviation amounts to
2 × 6.5 ft × ±0.0048 in/ft = 0.062 in
(2 × 2 m × ±0.4 mm/m = ±1.6 mm)
The points III and IV must therefore be no
further than 0.062 in (1.6 mm) from each
other.
Working Advice
used for marking. The width of the laser
line changes depending on the distance.
Working with the
Laser Target Plate
Working with the Tripod
(Accessory)
2/23/21 3:03 PM
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