LAX 50 G
8
en
7.2 Horizontal check
A Checking the horizontal laser line level
2 parallel walls at least 5m / 16’5” apart (distance S) are
required for the horizontal check.
1. Position the LAX 50 G as close as possible to wall A on
a horizontal surface.
2. Align the LAX 50 G with wall A using the exit window.
3. Switch on the laser unit.
4. Once automatic levelling has ended, mark the cross
projected onto wall A. Point 1.
5. Rotate the LAX 50 G through 180° and align with wall B
using the exit window.
6. Once automatic levelling has ended, mark the cross
projected onto wall B. Point 2.
7. Now reposition the laser unit so that it is directly in
front of wall B. Align the LAX 50 G with wall B using
the exit window.
8. Move the laser line cross until it precisely coincides
with point 2.
9. Rotate the LAX 50 G through 180° and align with wall A
using the exit window. Do not adjust the height.
10. Move the laser line cross by turning the casing until it
precisely coincides with the marking line of point 1.
11. Once automatic levelling has ended, mark the cross
projected onto wall A. Point 3.
12. Measure the vertical distance between points 1 and 3.
Distance S to the wall Maximum permissible distance:
5 m
5.0 mm
10 m
10.0 mm
15 m
15.0 mm
Distance S to the wall Maximum permissible distance:
16’5”
3/16”
32’10”
3/8”
49’3”
5/8”
2
A
B
A
B
B
A
