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– Mark the center of the laser line at the
upper edge of the door opening as point IV.
– The difference d of both marked points III
and IV results in the actual deviation of the
tool to the plumb line.
– Measure the height of the door opening.
The maximum admissible deviation is
calculated as follows:
Repeat the measuring procedure for the
second vertical laser plane. For this, select
an operating mode in which a vertical laser
plane is generated aside of the tool. Turn the
Working with the Laser
Target Plate
The laser target plate 26 increases the
visibility of the laser beam under unfavorable
conditions and at large distances.
The reflective part of the laser target plate
26 improves the visibility of the laser line.
Thanks to the transparent part, the laser line
is also visible from the back side of the laser
target plate.
Working with the Tripod
(Optional Accessory)
A tripod offers a stable, height-adjustable
support. Position the tool with the 1/4-20
tripod mount 17 onto the thread of the tripod
30 or a commercially available camera tripod.
For fastening to a commercially available
construction tripod, use the 5/8-11 tripod
mount 18. Tighten the tool with the tripod
mounting stud.
Fastening with the BM 1
Positioning Device (Accessory)
(see figure B)
With the BM 1 positioning device 24, you can
fasten the tool, e.g., to vertical surfaces, pipes
or magnetic materials. The BM 1 positioning
device is also suitable for use as a ground
tripod and makes the height adjustment of the
tool easier. The clip attachment is suitable for
drop ceiling applications.
Use with Attachments
-17-
tool 90° before beginning with the measuring
procedure.
Calculate the maximum deviation as follows:
Doubled height of the door opening x 0.003
in/ft
Example: For a door-opening height of
6.5ft, the maximum deviation may be 2
x 6.5 ft x ±0.003 in/ft = ±1/32 (0.03125 in)
Consequently, points III and IV may be
no more than 1/32 in (max.) apart from
each other.
Working with the Laser Receiver
(Accessory) (see figure B)
Under unfavorable light conditions (bright
environment, direct sunlight) and for larger
distances, use the laser receiver 25 for
improved finding of the laser lines. When
working with the laser receiver, switch the
pulse function on (see "Receiver Mode").
Laser Viewing Glasses
(Optional Accessory)
The laser viewing glasses filter out the
ambient light. This makes the red light of the
laser appear brighter for the eyes.
• Do not use the laser viewing glasses as
safety goggles. The laser viewing glasses
are used for improved visualization of the
laser beam, but they do not protect against
laser radiation.
• Do not use the laser viewing glasses as
sun glasses or in traffic. The laser
viewing glasses do not afford complete UV
protection and reduce color perception.
Work Examples
(see figures A–F)
Applicational examples for the tool can be
found on the graphics pages.
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