Bosch PLR 50 Original Instructions Manual page 31

OBJ_BUCH-946-002.book Page 31 Thursday, June 25, 2009 9:00 AM
English | 31
Working Advice
General Information
The reception lens 20 and the laser beam outlet 19 must not
be covered when taking a measurement.
The measuring tool must not be moved while taking a measure-
ment (with the exception of the continuous measurement
function). Therefore, place the measuring tool, as far as this is
possible, against or on the measuring points.
Measurement takes place at the centre of the laser beam, even
when target surfaces are sighted at an incline.
Influence Effects on the Measuring Range
The measuring range depends upon the light conditions and
the reflection properties of the target surface. For improved
visibility of the laser beam when working outdoors and when
the sunlight is intense, use the laser viewing glasses 22 (acces-
sory) and the laser target plate 24 (accessory), or shade off the
target surface.
Influence Effects on the Measuring Result
Due to physical effects, faulty measurements cannot be exclud-
ed when measuring on different surfaces. Included here are:
– Transparent surfaces (e.g., glass, water),
– Reflecting surfaces (e.g., polished metal, glass),
– Porous surfaces (e.g. insulation materials),
– Structured surfaces (e.g., roughcast, natural stone).
If required, use the laser target plate 24 (accessory) on these
surfaces.
Also, air layers with varying temperatures or indirectly received
reflections can affect the measured value.
Measuring with the Positioning Pin (see figures B and F)
The positioning pin 14 is suitable for measuring out of corners
(diagonal within a space) or from hard to reach areas, such as
from roller-shutter rails.
Slide the latch 15 of the positioning pin sideward in order to
swivel out the pin.
Set the corresponding reference level for measurements with
the positioning pin by pushing button 9.
The positioning pin 14 swivels back in again by pushing it
toward the housing to the stop. The pin automatically locks in
place.
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