Bosch PLR 25 Originalbetriebsanleitung Seite 21

OBJ_BUCH-939-003.book Page 21 Tuesday, June 10, 2014 3:11 PM
Influence Effects on the Measuring Result
Due to physical effects, faulty measurements cannot be excluded when meas-
uring 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 20 (accessory) on these surfaces.
Also, air layers with varying temperatures or indirectly received reflections can
affect the measured value.
Sighting with the Alingment Aid (see figure D)
With the alignment aid 8, sighting over larger distances is a lot easier. For this,
look alongside the aligning aid on the top side of the measuring tool. The laser
beam runs parallel to this line of sight.
Troubleshooting Causes and Corrective Measures
–
Cause
Temperature warning indicator (c) flashing; measurement not possible
The measuring tool is outside the oper-
ating temperature range from – 10 °C
to + 50 °C (in the function continuous
measurement up to +40 °C).
Battery low indicator (b) appears
Battery voltage decreasing (measure-
ment still possible).
Battery low indicator (b) flashing; measurement not possible
Battery voltage too low
"Error" and "––––" indication in display
The angle between the laser beam and
the target is too acute.
The target surface reflects too intensely
(e.g. a mirror) or insufficiently (e.g.
black fabric), or the ambient light is too
bright.
The laser beam outlet 16 or the recep-
tion lens 17 are misted up (e.g. due to
a rapid temperature change).
Calculated value is greater than
2 3
99999 m/m /m .
"Error" indication flashes at in display (top)
Addition/Subtraction of measured
values with different units of measure
Unreliable measuring result
The target surface does not reflect
correctly (e.g. water, glass).
The laser beam outlet 16 or the recep-
tion lens 17 are covered.
Measuring result not plausible
Wrong reference level set
Obstruction in path of laser beam
Bosch Power Tools
English | 21
Corrective Measure
Wait until the measuring tool has
reached the operating temperature
Replace batteries/rechargeable
batteries
Replace batteries/rechargeable
batteries
Enlarge the angle between the laser
beam and the target
Work with the laser target plate 20
(accessory)
Wipe the laser beam outlet 16 and/or
the reception lens 17 dry using a soft
cloth
Divide calculation into intermediate
steps
Only add/subtract measured values
with the same units of measure
Cover off the target surface
Make sure that the laser beam outlet
16 or the reception lens 17 are
unobstructed
Select reference level that corre-
sponds to measurement
Laser point must be completely on
target surface.
1 609 92A 0JZ | (10.6.14)