Bosch Professional GLL 12-22 Manual Original página 17

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 over the measuring distance of 2 × 5 m = 10 m is as
follows:
GLL 12‑22: 10 m × ±0.8 mm/m = ±8 mm. The discrepancy d between points Ⅰ and Ⅲ
must therefore amount to no more than 8 mm.
GLL 12‑22 G: 10 m × ±0.6 mm/m = ±6 mm. The discrepancy d between points Ⅰ and Ⅲ
must therefore amount to no more than 6 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 a tripod , or place it
on a firm, level surface. Turn the measuring tool on the magnetic rotating mount (3)
so that the laser outlet aperture (1) is not obstructed. Switch the measuring tool on
and allow it to level in.
Bosch Power Tools
– 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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1 609 92A 8C4 | (05.07.2023)