Bosch GLL 2-10 - Checking Horizontal Line Level Accuracy

English | 31
The maximum permitted deviation on the measuring distance of 2×5m=10m is as fol-
lows:
10m×±0.3mm/m=±3mm. The discrepancy d between pointsⅠ and Ⅲ must therefore
amount to no more than 3mm.
Checking the Level Accuracy of the Horizontal Line
For this check, you will need a free area of 5×5m.
– Mount the measuring tool in the middle between wallsA and B on the holder or a tri-
pod, or place it on a firm, flat surface. Switch on the measuring tool with the auto-
matic levelling function enabled and select horizontal mode. Allow the measuring tool
to level in.
2,5 m
5,0 m
5,0 m
5,0 m
5,0 m
A
B
– At a distance of 2.5m from the measur-
ing tool, mark the centre of the laser line
on both walls (pointⅠ on wallA and
pointⅡ on wallB).
2,5 m
d
5,0 m
2,5 m
5,
0 m
A
B
– Set up the measuring tool at a 5m dis-
tance and rotated by 180° and allow it to
level in.
– Align the height of the measuring tool (using the tripod or by placing objects under-
neath as required) so that the centre of the laser line exactly hits the previously
marked pointⅡ on wallB.
– Mark the centre of the laser line on wallA as pointⅢ (vertically above or below
pointⅠ).
Bosch Power Tools 1 609 92A 7AN | (14.12.2021)