Bosch PLR 25 Originalbetriebsanleitung Seite 18

OBJ_BUCH-939-003.book Page 18 Tuesday, June 10, 2014 3:11 PM
18 | English
 Do not subject the measuring tool to extreme temperatures or varia-
tions 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 accuracy 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 an ac-
curacy check (see "Accuracy Check of the Measuring Tool", page 22) each
time before continuing to work.
Switching On and Off
To switch on the measuring tool, briefly press the On/Off button 1 or 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 1 for a few seconds.
If none of the measuring tool buttons are pressed for approx. 5 minutes, the
measuring tool switches off automatically in order to extend the service life of
the battery.
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
After switching on, the measuring tool is in the length measurement mode.
Other measuring modes can be switched to by pressing the respective func-
tion/mode button (see "Measuring Functions", page 19).
After switching on, the rear edge of the measuring tool is preset as the reference
level for the measurement. To change the reference level, see "Selecting the
Reference Level (see figures A–B)", page 18.
Upon selection of the measuring function and the reference level, all further
steps are carried out by pushing 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, the measurement already starts upon first actuation of
the measuring button 9.
Typically, the measured value appears after 0.5 and latest after 4 seconds. The
duration of the measurement depends on the distance, the light conditions and
the reflection properties of the target surface. The end of the measurement is in-
dicated by a signal tone. The laser beam is switched off automatically upon com-
pletion 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–B)
Two different reference levels are available for measuring:
– The rear edge of the measuring tool (e.g. when placing against a wall),
– The front measuring-tool edge (e.g. when measuring onward from a table
edge).
To change the reference level, press button 2 until the requested reference level
is indicated on the display. Each time after switching on the measuring tool, the
rear end of the measuring tool is preset as the reference level.
1 609 92A 0JZ | (10.6.14) Bosch Power Tools