Bosch Professional GLM 50-27 CG Original Instructions Manual page 17

Avoid substantial knocks to the measuring tool and avoid dropping it. After strong
u
external influences on the measuring tool, you should always carry out an accuracy
check (see "Accuracy Check", page 36) before further work.
Switching On and Off
Press the button to switch the measuring tool and the laser on.
You can also switch on the measuring tool without the laser by pressing the
Press and hold the
The measured values and device settings in the memory are retained.
Measuring Process
When switching on for the first time, the measuring tool will be in the length measurement
function. When switching on every subsequent time, the measuring tool will be in the
measuring function that was last used.
Three settings are available for the reference level of the measurement. (see "Selecting
the Reference Level", page 18)
Apply the measuring tool to the point at which you want to start the measurement (e.g.
wall).
If you have switched on the measuring tool with the
the button to switch on the laser.
Press the button to start the measurement.
Once the measurement process is complete, the laser beam will switch off. For a further
measurement, repeat this process.
Measured values or end results can be added or subtracted.
The measured value typically appears within 0.5 s and at the latest after approx. 4 s.
The duration of the measurement depends on the distance, the lighting conditions and the
reflective properties of the target surface. Once the measurement process is complete,
the laser beam will automatically switch off.
The measuring tool must not be moved during a measurement (with the exception
of the continuous measurement and grade measurement functions). Therefore,
place the measuring tool, as far as this is possible, against or on a firm stop or supporting
surface.
Bosch Power Tools
button to switch off the measuring tool.
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button.
button, then briefly press
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