56
EN
8.5 Checking the perpendicularity of the lateral axis
1. Select a room with a square floorplan, in which the
walls are approx. 10 meters apart.
> Position the device in the middle of the room on a
tripod and align the vertical laser line perpendicular to
one of the walls.
> Mark the center of the lower plumb beam L on the
floor (with a target).
> Mark the intersecting point 1 of the vertical and
horizontal laser line (with a target).
> Mark the center of the right lateral plumb beam 2
(with a target).
2. Rotate the device 90° clockwise.
> The lower plumb beam must remain on the marking
L and the left lateral plumb beam must be exactly
aligned to the mark 1 .
> Mark the intersecting point 3 of the vertical and
horizontal laser line (with a target).
> Mark the center of the right lateral plumb beam 4
(with a target).
NOTE:
the horizontal distance d1 between the marked
points 2 and 3 may only be a max. of 3 mm at a
measuring distance of 5 m.
3. Rotate the device 180° clockwise.
> The lower plumb beam must remain on the marking
L and the right lateral plumb beam must be exactly
aligned to the mark 1 .
> Mark the center of the left lateral plumb beam 5
(with a target).
NOTE:
the horizontal distance d2 between the marked
points 4 and 5 may only be a max. of 3 mm at a
measuring distance of 5 m.
4
90°
180°
5
1
1
L
2
4
ca. 10 x 10 m
2
ca. 10 x 10 m
ca. 5 m
L
L
3
2
3
1
2
3
d1
5
d2
4
3
2
1
Та
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Га
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ОО
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