Operation; Initial Operation; Switching On And Off; Measuring Procedure - Bosch GLM 20 Originalbetriebsanleitung

en 16 | GLM 20 | Operation
5.

Operation

5.1

Initial Operation

¶
Do not leave the switched-on measuring tool unat-
tended and switch the measuring tool off after use.
Other persons could be blinded by the laser beam.
¶
Protect the measuring tool against moisture and
direct sun light.
¶
Do not subject the measuring tool to extreme
temperatures or variations in temperature. As an
example, do not leave it in vehicles for a long time.
In case of large variations in temperature, allow the
measuring tool to adjust to the ambient temperature
before putting it into operation. In case of extreme
temperatures or variations in temperature, the accu-
racy of the measuring tool can be impaired.
¶
Avoid heavy impact to or falling down of the
measuring tool. After severe exterior effects to the
measuring tool, it is recommended to carry out a
check (see "Checking the Measuring Tool", page 13)
each time before continuing to work.
5.2

Switching On and Off

To switch on the measuring tool, press the On/Off
button 1. When the measuring tool is switched on, the
laser beam is switched on. The laser symbol
es on the display.
To switch off the measuring tool, press the On/Off
button 1 for at least 3 seconds.
When no button on the measuring tool is pressed for
approx. 5minutes, the measuring tool automatically
switches off to save the batteries.
5.3

Measuring Procedure

A continuous measurement is performed after the mea-
suring tool has been switched on. Aim the laser beam
at the target surface. The current measuring value g is
shown in the bottom line of the display (see figure A).
During continuous measurement the measuring tool can
be moved relative to the target, and the current measur-
ing value g will be updated approx. every 0.5 seconds in
the bottom line of the display (see figure B).
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You can, for example, move to a desired distance away
from a wall, and you will be able to read the current
distance at all times. The laser symbol
the display.
The rear edge of the measuring tool is the reference
level for the measurement (
For a wall to wall measurement, as an example, position
the measuring tool with its rear edge against the initial
wall.
¶
Do not point the laser beam at persons or animals
and do not look into the laser beam yourself, not
even from a large distance.
5.4

"Hold" Function (see figure B)

flash-
When no button on the measuring tool is pressed for
approx. 5minutes, the measuring tool automatically
switches off to save the batteries.
If a measuring value has been held using the "Hold"
function, it will be retained if the tool switches off auto-
matically. Once the measuring tool has been switched
on again by pressing the On/Off button 1, the previous
measuring value e is shown in the top line of the dis-
play.
).
Press the On/Off button 1 to stop the
measuring procedure. The laser beam is
switched off and the Hold indicator ap-
pears on the display. The current measur-
ing value will continue to be shown in the
bottom line of the display, but it will no
longer be continuously updated.
Press the On/Off button 1 again to switch
the laser back on. The laser symbol
flashes on the display. The previous mea-
suring value is displayed in the top line.
The continuously updated/current measur-
ing value will be shown in the bottom line.
Press the On/Off button 1 again to stop
the measuring procedure again. The laser
beam is switched off and the Hold indica-
tor appears on the display. The previous
measuring value is displayed in the top line.
The current measuring value will be shown
in the bottom line, but it will no longer be
continuously updated.
Robert Bosch GmbH
flashes on