Working Advice - CST/BERGER LM800 Série Notice Originale

– Rotate the measuring tool by 180°, allow it to level
in and mark the centre point of the laser beam on
the wall (point II). Take care that point II is as ver-
tical as possible above or below point I.
– The difference d of both marked points I and II on
the wall results in the actual height deviation of the
measuring tool for the measured axis.
Repeat the measuring procedure for the other axis.
For this, turn the measuring tool by 90° before starting
the measuring procedure.
On the measuring distance of 2 x 30 m = 60 m, the
maximum allowable deviation is:
60 m x ± 0.05 mm/m = ± 3 mm.
Consequently, the difference d between points I and
II for each of the two measurements may not exceed
3 mm.
Checking the Levelling Accuracy in the Vertical
Position (LM800DP)
A free measuring distance of 10 m on a firm surface in
front of a wall is required for the check. Fasten a
plumb bob rope to the wall.
– Mount the measuring tool in the vertical position
onto a tripod, or place it on a firm and level surface.
Switch the measuring tool on and allow it to level.
– Align the measuring tool such that the laser beam
impinges centrally on the plumb bob rope at the
upper end. The difference d between laser beam
and plumb bob rope at the bottom end of the rope
results in the deviation of the measuring tool to the
vertical line.
For a 10 m high measuring distance, the maximum
allowable deviation is:
10 m x ± 0.1 mm/m = ± 1 mm.
Thus, the difference d must not exceed 1 mm.
800.561.8187
2 610 A15 117 • 12.8.09

Working Advice

180˚
Laser Viewing Glasses (Accessory)
The laser viewing glasses filter out the ambient light.
This makes the red light of the laser appear brighter
for the eyes.
Working with the Laser Receiver (Accessory)
(see figure A)
Under unfavourable light conditions (bright environ-
ment, direct sunlight) and for larger distances, use the
laser receiver for improved finding of the laser beam 27.
LM800DP: When working with the laser receiver,
select rotational operation with the highest rotational
speed.
Before working with the laser receiver, read and
observe the laser receiver operating instructions.
Working with the Remote Control (Accessory)
While pressing the operator buttons, the measuring
tool can be brought out of alignment so that the rota-
tion is briefly stopped. This effect is avoided when
using the remote control 30.
The receiption lenses 6 for the remote control are
located below the control panel as well as on both
sides of the measuring tool.
For information on working with the remote control 30,
see "Remote control", page 30.
Working with the Tripod (Accessory)
The measuring tool is equipped with a 5/8" tripod
mount 5 each for horizontal and vertical operation.
Place the measuring tool via the tripod mount 5 onto
the 5/8" male thread of the tripod and screw the lock-
ing screw of the tripod tight.
Adjust the tripod roughly before switching on the
measuring tool.
Working with Wall Holder/Alignment Unit
(Accessory) (see figure B)
You can also mount the measuring tool to the wall
mount with alignment unit 29. For this, screw the 5/8"
screw of the wall mount into one of the tripod mounts
5 of the measuring tool.
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Always use the centre of the laser point for
marking. The size of the laser point changes with
the distance.
Do not use the laser viewing glasses as
safety goggles. The laser viewing glasses are
used for improved visualisation 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
colour perception.
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