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38 | English
Practical Advice
u The measuring tool is equipped with a wireless interface. Local operating restric-
tions, e.g. in aeroplanes or hospitals, must be observed.
General advice
The reception lens (9) and the laser beam output (8) must not be covered during the
measuring process.
The measuring tool must not be moved during a measurement (with the exception of the
continuous measurement and grade measurement functions). For this reason, place the
measuring tool against or on a firm surface whenever possible.
Influences on the measuring range
The measuring range depends on the lighting conditions and the reflective properties of
the target surface. For better visibility of the laser beam when working outdoors and in
bright sunlight, use the laser viewing glasses (10) (accessory) and the laser target plate
(11) (accessory) or shade the target area.
Influences on the measurement result
Due to physical effects, the possibility of inaccurate measurements when measuring vari-
ous surfaces cannot be excluded. These include:
– Transparent surfaces (e.g. glass, water)
– Reflective surfaces (e.g. polished metal, glass)
– Porous surfaces (e.g. insulating materials)
– Structured surfaces (e.g. roughcast, natural stone).
If necessary, use the laser target plate (11) (accessory) on these surfaces.
Inaccurate measurements are also possible where the laser is pointed at target surfaces
diagonally.
Layers of air at different temperatures and indirectly received reflections can also influ-
ence the measured value.
Checking accuracy and calibrating the inclination measurement
The tilt sensor is used in the "Inclination measurement", "Digital spirit level" and "Indirect
distance measurement" modes. When you are using these modes, we recommend regu-
lar calibration (see "Basic settings menu", page33). Follow the instructions on the
touchscreen.
We recommend that you perform an accuracy check and if necessary a calibration of the
measuring tool after extreme temperature variations and after impact to the tool. After a
temperature variation, the measuring tool must acclimatise for a while before grade cal-
ibration is performed.
1 609 92A 4P1 | (17.01.2019) Bosch Power Tools
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