Bosch GLM 150 C Professional Original Instructions Manual page 8

8 | English
Measuring Process
Once switched on, the measuring tool is in the length measure-
ment function.
Once the measuring tool has been switched on, the rear edge
of the measuring tool is selected as the reference level for
measurement. You can change the reference level. (see "Se-
lecting the Reference Level", page 8)
Apply the measuring tool to the point at which you want to
start the measurement (e.g. wall).
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.
With a switched-on permanent laser beam and in the continu-
ous measurement function, the measurement begins immedi-
ately after the first press of the
The switched-on permanent laser beam is not switched off
after the measurement (see "Permanent Laser Beam
page 9).
The measuring tool must not be moved during a meas-
urement (with the exception of the continuous measure-
ment function). Therefore, place the measuring tool, as far as
this is possible, against or on a firm stop or supporting surface.
The reception lens (18), the laser beam output (19) and
the camera (20) must not be covered during the meas-
uring process.
Influences 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 strong foreign light, use
the integrated camera (20), the laser viewing glasses (26) (ac-
cessory) and the laser target plate (25) (accessory), or shade
the target surface.
Influences on the Measurement Result
Due to physical effects, incorrect measurements are possible
when measuring on various surfaces. These include:
– Transparent surfaces (e.g. glass, water)
– Reflective surfaces (e.g. polished metal, glass)
– Porous surfaces (e.g. insulation materials)
– Structured surfaces (e.g. roughcast, natural stone)
If necessary, use the laser target plate (25) (accessory) on
these surfaces.
Incorrect measurements are also possible on slanted target
surfaces.
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button.
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Likewise, layers of air with different temperatures or indirectly
received reflections can influence the measured value.
Navigation in the Menus
In the menus, you can switch to the right with the
and to the left with the button.
To confirm a selection, press the
Press the button to exit the menu.
Selecting the Reference Level
For the measurement, you can select from various reference
levels:
The rear edge of the measuring tool (e.g. when
placing against walls)
The tip of the stop pin (8) folded by 180° (e.g. for
measurements from corners)
The front edge of the measuring tool (e.g. when
measuring from a table edge)
The centre of the tripod thread (17) (e.g. for tri-
pod measurements)
Press the soft button to open the Basic settings menu.
Select .
Use the button or button to select the required refer-
ence level.
To confirm the selection, press the
Swinging the stop pin (8) in and out by 180° is automatically
detected and the corresponding reference level suggested. To
confirm the selection, press the
The rear edge of the measuring tool is preset as the reference
level every time the measuring tool is switched on.
Basic Settings Menu
In the Basic settings menu, you can find the following basic
settings:
– Changing the unit of measurement
– Changing the Unit of Measurement of an Angle
– Switching audio signals on and off
– Switching automatic screen rotation on and off
– Switching on and off permanent laser beam
– Switching on and off Bluetooth®
– Setting the language
button
button or the button.
button.
button.
Bosch Power Tools