Bosch Professional GLM 400 Series Original Instructions Manual page 16

16 | English
Switching on/off
– To switch on the measuring tool and the laser, briefly press the measuring button (2)
[ ].
– To switch on the measuring tool without the laser, briefly press the on/off button (5)
[ ].
Do not direct the laser beam at persons or animals and do not stare into the laser
u
beam yourself (even from a distance).
To switch off the measuring tool, press and hold the on/off button (5) [ ].
The measured values and device settings in the memory are retained when you switch
the measuring tool off.
Measuring process
Once switched on, the measuring tool is in the length measurement function. For a differ-
ent measuring function, press the [Func] button (7). Use the [+] button (3) or the [–]
button (8) to select the required measuring function (see "Measuring functions",
page 17). Activate the measuring function with the [Func] button (7) or with the meas-
uring button (2) [ ].
Once the measuring tool has been switched on, the rear edge of the measuring tool is se-
lected as the reference level for measurement. For changing the reference level (see "Se-
lecting the reference level (see figure A)", page 16).
Apply the measuring tool to the point at which you want to start the measurement (e.g.
wall).
Note: If the measuring tool has been switched on using the on/off button (5) [ ], briefly
press the measuring button (2) [ ] to switch the laser on.
To initiate the measurement, briefly press the measuring button (2) [ ]. Then the laser
beam is switched off. For a further measurement, repeat this process.
Do not direct the laser beam at persons or animals and do not stare into the laser
u
beam yourself (even from a distance).
Note: The measured value typically appears within half a second, and no later than ap-
proximately four seconds. The duration of the measurement depends on the distance,
the lighting conditions and the reflective properties of the target surface. Upon comple-
tion of the measurement, the laser beam is automatically switched off.
Selecting the reference level (see figure A)
You can choose between three different reference levels for the measurement:
– The rear edge of the measuring tool (e.g. when placing against walls)
1 609 92A 5G9 | (06.11.2019) Bosch Power Tools