General Information - Bosch GLM 100 C Operating/Safety Instructions Manual

airplanes or hospitals, are to be observed.
The reception lens 18 and the laser beam outlet 17 must not be covered
when taking a measurement.
The measuring tool must not be moved while taking a measurement (with
the exception of the continuous measurement and angle measurement
functions). Therefore, place the measuring tool, as far as possible, against
or on a firm stop or supporting surface.
Influence Effects on the Measuring Range
The measuring range depends upon the light conditions and the reflection
properties of the target surface. For improved visibility of the laser beam
when working outdoors and when the sunlight is intense, use the laser
viewing glasses 29 (accessory) and the laser target plate 30 (accessory),
or shade off the target surface.
Influence Effects on the Measuring Result
Due to physical effects, faulty measurements cannot be excluded when
measuring on different surfaces. Included here are:
– Transparent surfaces (e.g., glass, water),
– Reflecting surfaces (e.g., polished metal, glass),
– Porous surfaces (e.g. insulation materials),
– Structured surfaces (e.g., roughcast, natural stone).
If required, use the laser target plate 30 (accessory) on these surfaces.
Furthermore, faulty measurements are also possible when sighting inclined
target surfaces.
Also, air layers with varying temperatures or indirectly received reflections
can affect the measured value.
Accuracy Check and Calibration of the Angle measurement (see
Regularly check the accuracy of the angle measurement. This is done by
carrying out a reversal measurement. For this, place the measuring tool
on a table and measure the angle. Turn the measuring tool by 180 ° and
Working Advice
The measuring tool is equipped with a radio
interface. Local operating restrictions, e.g. in

General Information

figure H)
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