7 Operation
NOTE
To achieve maximum accuracy, project the line onto a
vertical, even surface. When doing so, set up the tool at
90° to the surface.
7.1 Operation
7.1.1 Switching the laser beams on
Press the on/off button once.
7.1.2 Switching the tool / laser beams off
Press the on/off button until the laser beam is no longer
visible and the LED goes out.
NOTE
The tool switches itself off automatically after approx. 15
min.
7.1.3 Deactivating the automatic power-off feature
Press and hold the on/off button for approx. 4 sec. until
the laser beam blinks three times as confirmation.
NOTE
The tool will be switched off when the on/off button is
pressed or when the batteries are exhausted.
7.1.4 Inclined line function
1. Lay the tool on its back.
The tool does not level itself automatically.
The tool blinks every two seconds.
7.1.5 Using the tool with the PMA 31 laser receiver
For further information, please refer to the PMA 31 oper-
ating instructions.
7.2 Examples of applications
7.2.1 Transferring heights
3
7.2.2 Aligning pipes vertically
4
7.2.3 Aligning radiators
5
7.2.4 Aligning door and window frames
6
7.3 Checking
7.3.1 Checking leveling of the forward beam
7
1. Place the tool on a smooth, level surface approx.
20 cm from the wall (A) with the laser beam directed
toward the wall (A).
2. Mark the point of intersection of the laser lines on
the wall (A) with a cross.
3. Pivot the tool through 180° and mark the point of
intersection of the laser lines on the opposite wall
(B) with a cross.
4. Place the tool on an even, level surface approx. 20
cm from the wall (B) with the laser beam directed
toward the wall (B).
5. Mark the point of intersection of the laser lines on
the wall (B) with a cross.
6. Pivot the tool through 180° and mark the point of
intersection of the laser lines on the opposite wall
(A) with a cross.
7. Measure the distances d1 between 1 and 4 and d2
between 2 and 3.
8. Mark the mid points of d1 and d2.
If the reference points 1 and 3 are located on dif-
ferent sides of the mid point, then subtract d2 from
d1.
If the reference points 1 and 3 are located on the
same side of the mid point, then add d1 and d2
together.
9. Divide the result by twice the length of the room
(room length x 2).
The maximum permissible error is 3 mm at 10 m.
7.3.2 Checking the accuracy of the horizontal
line
8 9
1. Place the tool at the edge of a room with a length of
at least 10 m.
NOTE
The floor surface must be smooth and level.
2. Switch on all laser beams.
3. Set up a target plate at a distance of at least 10 m
from the tool, so that the point of intersection of the
laser lines lies in the center of the target plate (d0)
and the vertical line on the target plate runs exactly
through the middle of the vertical laser line.
4. Pivot the tool clockwise through 45° (as seen from
above).
5. Then mark the point (d1) on the target plate where
the horizontal laser line strikes the vertical line on
the target plate.
6. Pivot the tool counterclockwise through 90°.
7. Then mark the point (d2) on the target plate where
the horizontal laser line strikes the vertical line on
the target plate.
8. Measure the following vertical distances: d0-d1, d0-
d2 and d1-d2.
NOTE
The greatest measured vertical distance must
be no more than 5 mm at a working distance of 10
m.
7.3.3 Checking the vertical lines
10
1. Position the tool at a height of 2 meters.
2. Switch the tool on.
3. Position the first target plate T1 (vertical) at a dis-
tance of 2.5 meters from the tool at the same height
(2 meters), so that the vertical laser beam strikes the
plate. Mark this position.
en
6
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Summary of Contents for PML 42
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