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Accuracy Check of the Measuring Tool
Influences on Accuracy
The largest influence is exerted by the ambient temperature. In particular, temperature
differences that occur from the ground upwards can refract the laser beam.
Since the temperature stratification is greatest at ground level, you should always mount
the measuring tool on a tripod for measuring distances of 20 m or more. In addition, pos-
ition the measuring tool in the centre of the work surface, wherever this is possible.
In addition to external influences, device-specific influences (e.g. falls or heavy impacts)
can also lead to deviations. For this reason, check the levelling accuracy each time be-
fore beginning work.
Should the measuring tool exceed the maximum deviation during one of the tests, please
have it repaired by a
Bosch
after-sales service.
Checking the horizontal levelling accuracy
For this check, you will need a free measuring distance of
5
m on firm ground between
two walls (designated A and B).
– Mount the measuring tool close to wall A on a tripod, or place it on a firm, flat surface.
Switch on the measuring tool.
A
B
5 m
– Aim the horizontal laser beam that runs parallel to the longitudinal axis of the measur-
ing tool at the closer wall A and allow the measuring tool to level in. Mark the centre of
the laser point on the wall (point
Ⅰ
).
1 609 92A 5MH | (22.10.2020)
Bosch Power Tools
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