Bosch GLL 80-33 G Professional Notice Originale page 38

38 | English
A
A
d
– The discrepancy d between the two marked points Ⅰ and Ⅲ on wall A reveals the ac-
tual height deviation of the measuring tool.
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 Levelling Accuracy of the Vertical Lines
For this check, you will need a door opening (on solid ground) which has at least 2.5 m of
space either side of the door.
– Place the measuring tool 2.5 m away from the door opening on a firm, flat surface (not
on a tripod). Switch on the measuring tool and the vertical laser line at the front of the
measuring tool. Aim the laser line at the door opening and allow the measuring tool to
level in.
1 609 92A 9B3 | (08.05.2024)
– Align the height of the measuring tool
(using the tripod or by placing objects
B
underneath as required) so that the
point where the laser lines cross exactly
hits the previously marked point Ⅱ on
wall B.
– Turn the measuring tool 180° without
adjusting the height. Aim it at wall A
B
180°
such that the vertical laser line runs
through the already marked point Ⅰ. Al-
low the measuring tool to level in and
mark the point where the laser lines
cross on wall A (point Ⅲ).
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