Bosch GLM 20 (0601072E00) [12/87] Practical advice

12 | English

1 609 92A 4JT | (05.09.2018) Bosch Power Tools

Hold down the on/off button (1). When the required unit of measure is dis-

played, release the on/off button (1). After releasing, the measuring tool

switches itself on with the selected setting.

Practical Advice

General Advice

The reception lens (7) and the laser beam output (8) must not be covered

during the measuring process.

The measurements are taken at the centre of the laser beam, even when the

laser is pointed at surfaces diagonally.

Influences on the Measuring Range

The measuring range depends on the lighting conditions and the reflective

properties of the target surface.

Influences on the Measurement Result

Due to physical effects, the possibility of inaccurate measurements when

measuring various 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).

Layers of air at different temperatures and indirectly received reflections

can also influence the measured value.