LAX 50 G
9
en
S = 5m
5m
5m
X1
X2
X3
7.2 Horizontal check
B Horizontal check – Inclination of the laser line
Checking the laser line for inclination and to ensure the
projection is exactly straight.
1. On the floor, mark 3 points 1–3 in an exact line at a
distance of 5m / 16’5” from one another.
2. Position the laser S = 5m / 16’5” from the line, exactly
in front of the middle point = position X.
3. Switch on the unit.
4. Measure the height of the laser line at the points.
Measurements X1–X3
5. Reposition the unit.
6. Position the laser S = 5m / 16’5” from the line, exactly
in front of the middle point = position Y.
7. Measure the height of the laser line at the points.
Measurements Y1–Y3
∆1 = X1 - Y1 ∆2 = X2 - Y2 ∆3 = X3 - Y3
The following applies to the differences:
Δ
total 1 =
Δ
1 -
Δ
2 < ± 5 mm 3/16”
Δ
total 2 =
Δ
3 -
Δ
2 < ± 5 mm 3/16”
Pay attention to the plus or minus signs during calculations!
