Deactivating The Bluetooth Interface; Influence Effects On The Measuring Range; Influence Effects On The Measuring Result; Accuracy Check And Calibration Of The Grade Measurement - Bosch GLM 50 C Original Instructions Manual

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Deactivating the ® Interface
To deactivate the Bluetooth® connection, press the Bluetooth® button 6. To deacti-
vate the Bluetooth® signal, press the Bluetooth® button 6 once again or the button
8 [–] or switch off the measuring tool.
Working Advice
 For more information, visit the Bosch product page, see QR code, page 8.
 The measuring tool is equipped with a radio interface. Local operating restric-
tions, e.g. in airplanes or hospitals, are to be observed.
General Information
The reception lens 14 and the laser beam outlet 15 must not be covered when taking
a measurement.
The measuring tool must not be moved while taking a measurement. Therefore, place
the measuring tool, as far as this is possible, against or on a firm stop or supporting
surface.

Influence Effects 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 in extraneous light, use the
laser viewing glasses 18 (accessories) and the laser target plate 17 (accessories) or
shade the target area.

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 17 (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 Grade Measurement (see figure G)
Regularly check the accuracy of the grade measurement. This is done by carrying out
a reversal measurement. For this, place the measuring tool on a table and measure
Bosch Power Tools 1 609 92A 3UB | (15.3.17)