Inserting/Replacing The Battery; Initial Operation - Bosch DLE 50 Professional Instructions D'emploi

OBJ_BUCH-135-003.book Page 16 Monday, November 26, 2007 2:42 PM
Assembly

Inserting/Replacing the Battery

Use only alkali-manganese or rechargeable batteries.
Fewer measurements are possible when using 1.2 V
rechargeable batteries as compared with 1.5 V bat-
teries.
To open the battery lid 17, press the latch of the bat-
tery lid 16 in the direction of the arrow and remove the
battery lid. Insert the supplied batteries. When insert-
ing, pay attention to the correct polarity according to
the representation on the inside of the battery com-
partment.
When the battery symbol appears in the display for
the first time, then at least 100 measurements are still
possible. The batteries must be replaced when the
battery symbol flashes; taking measurements is no
longer possible.
Always replace all batteries at the same time. Only use
batteries from one brand and with the identical capacity.
Remove the batteries from the measuring
tool when not using it for extended periods.
When storing for extended periods, the batteries
can corrode and discharge themselves.
Operation

Initial Operation

Protect the measuring tool against moisture
and direct sun irradiation.
Do not expose the measuring tool to extreme
temperatures or variations in temperature.
Switching On and Off
To switch on the measuring tool, either press the
On/Off button 13 or the measuring button 9. When
switching on the measuring tool, the laser beam is not
switched on yet.
To switch off the measuring tool, press the On/Off
button 13.
To save the batteries, the measuring tool switches off
automatically after approx. 5 minutes when no meas-
urement is carried out.
When a measured value has been stored, it is retained
in automatic switch-off mode. When switching on the
measuring tool again, "M" is indicated in the display.
Measuring Procedure
The measuring tool offers a variety of different meas-
uring functions that can be selected by pushing the
corresponding function button (see "Measuring Func-
tions"). After switching on, the measuring tool is in the
"length measurement function".
16 | English
Also, it is possible to select any of the four different
reference levels for the measurement by pushing the
reference level button 10 (see "Selecting the Refer-
ence Level"). After switching on, the rear edge of the
measuring tool is preset as the reference level.
Upon selection of the measuring function and the ref-
erence level, all further steps are carried out by push-
ing the measuring button 9.
With the reference level selected, place the measuring
tool against the desired measuring line (e.g. a wall).
Push the measuring button 9 to switch on the laser
beam.
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.
Aim the laser beam at the target surface. Push the
measuring button 9 again to initiate the measurement.
In the tracking function as well as when the laser
beam is switched on permanently, the measurement
already starts upon first actuation of the measuring
button 9.
The measured value appears after 0.5 to 4 seconds.
The duration of the measurement depends on the dis-
tance, the light conditions and the reflection proper-
ties of the target surface. The end of the measurement
is indicated by a signal tone. The laser beam is
switched off automatically upon completion of the
measurement.
When no measurement has taken place approx.
20 seconds after sighting, the laser beam is switched
off automatically to save the batteries.
Selecting the Reference Level
(see figures A–D)
For measuring, it is possible to select from four differ-
ent reference levels:
• the rear edge of the measuring tool (e.g., when
placing the measuring tool flush against a wall),
• the rear edge of the positioning pin 14 (e.g., for
measurements out of corners).
• the front edge of the measuring tool (e.g., as when
measuring from the edge of a table onward),
• the thread 21 (e.g., for measuring with the tripod).
To select the reference level, push button 10 repeat-
edly until the required reference level is indicated in
the display. Each time after switching on, the rear
edge of the measuring tool is preset as the reference
level.
Continuous Laser Beam
If required, the measuring tool can also be switched to
the continuous laser beam mode. For this, push the
button for continuous laser beam 12. "LASER" lights
up continuously in the display.
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.
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