Initial Operation - Bosch BL 200 GC Professional Originalbetriebsanleitung

OBJ_BUCH-78-004.book Page 26 Thursday, July 26, 2007 2:04 PM
26 | English
Operation

Initial Operation

Avoid heavy impact or falling of the measur-
ing tool. After heavy exterior impact on the
measuring tool, an accuracy check should al-
ways be carried out before continuing to
work (see "Levelling Accuracy").
Do not subject the measuring tool to ex-
treme temperatures or variations in tem-
perature. As an example, do not leave it in
vehicles for longer periods. In case of large
variations in temperature, allow the measur-
ing tool to adjust to the ambient temperature
before putting it into operation.
Setting Up the Measuring Tool
Horizontal posi-
tion
Vertical position
Set up the measuring tool on a sturdy surface in
the horizontal or vertical position; mount it on a
tripod 40 or to the wall holder with alignment
unit 32.
Due to the high levelling accuracy, the measur-
ing tool reacts sensitively to ground vibrations
and position changes. Therefore, pay attention
that the position of the measuring tool is stable
in order to avoid operational interruptions due
to re-levelling.
Switching On and Off
Do not direct the laser beam at persons
or animals (especially not at their eye level)
and do not stare into the laser beam your-
self (not even from a distance). Immedi-
ately after switching on, the measuring tool
emits the vertical plumb beam 8 and the var-
iable laser beam 9, which rotates around
the plumb beam. Special attention with the
variable laser beam is required in point oper-
ation.
1 609 929 L80 | (26.7.07)
To switch on, press the On/Off pushbutton 29.
The laser immediately starts in rotational opera-
tion, while the automatic levelling begins at the
same time (see "Working with Automatic Level-
ling"). The indicators 25, 26 and 27 light up for
three seconds. During further levelling, the auto-
matic levelling indicator "auto" 26 flashes twice
per second. When the levelling takes longer than
5 seconds, rotational operation is interrupted
and the laser flashes twice per second until lev-
elling is completed.
With the operating mode pushbuttons 19 and
22 as well as with the direction pushbuttons 20,
21, 23 and 24, the operating mode can already
be set upon levelling-in (see "Operating
Modes"). In this case, the measuring tool runs
for 5 seconds in the selected operating mode
during the levelling to confirm the entry. After
the levelling, the function is continued in this
operating mode.
The measuring tool is levelled-in when the laser
beam and the "auto" indicator 26 light up con-
tinuously.
To switch off, press the On/Off 29 pushbutton
again.
The measuring tool automatically switches off
under the following conditions:
– When during automatic levelling, the measur-
ing tool is not within the self-levelling range
for more than 10 minutes, the device switch-
es off to save the batteries. Reposition the
measuring tool and switch on again.
– When exceeding the maximum permitted op-
erating temperature of 50 °C, the measuring
tool switches off to protect the laser diode.
After cooling down, the measuring tool is
ready for operation and can be switched on
again.
– When the self-check fails or in case of mal-
functions during operation, all functions are
blocked and the battery charge control indi-
cator 27 flickers.
– When the measuring tool is not switched on
again within 24 hours during activated stand
by operation.
– When the battery voltage is too low.
Bosch Power Tools