Bosch GLL 3-50 Instrucciones De Funcionamiento página 17

BM 2610A16273 07-13_BM 2610A16273 07-13 7/30/13 2:02 PM Page 17
– Without changing the height, turn around the laser tool by 180°. Direct it
against the wall A in such a manner that the vertical laser line runs
through the already marked point I. Allow the laser tool to level in and
mark the cross point of the laser lines on the wall A (point III).
– The difference d of both marked points I and III on wall A indicates the
actual height deviation of the laser tool.
The maximum permitted deviation d
d = double distance of the walls x 0.3 mm/m
max
Example: With a 5 metre distance between the walls, the maximum
deviation must not exceed
d = 2 x 5m x 0.3 mm/m = 3 mm. Thus, the marks must not be more than
max
3 mm apart.
Checking the Leveling Accuracy of the Horizontal Line
For the check, a free surface of approx. 5 x 5 metres is required.
– Set up the laser tool on a firm, level surface between both walls A and B.
Allow the laser tool to level in while in horizontal operation.
– At a distance of 2.5 metres from the laser tool, mark the centre of the
laser line (point I on wall A and point II on wall B) on both walls.
max
A
-17-
is calculated as follows:
B