Bosch DLE 40 Professional Notice Originale page 21

OBJ_BUCH-811-001.book Page 21 Thursday, July 31, 2008 9:46 AM
Influence Effects on the Measuring Range
The measuring range depends upon the light con-
ditions 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 21 (acces-
sory) and the laser target plate 22 (accessory), or
shade off the target surface.
Influence Effects on the Measuring Result
Due to physical effects, faulty measurements
cannot be excluded 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 22 (acces-
sory) on these surfaces.
Also, air layers with varying temperatures or in-
directly received reflections can affect the meas-
ured value.
Sighting with the Alingment Aid (see figure E)
With the alignment aid 7, sighting over larger dis-
tances 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.
Working with the Tripod (see figure C)
The use of a tripod is particularly necessary for
larger distances. Position the measuring tool
with the 1/4" thread 14 onto the quick-change
plate of the tripod 20 or a commercially available
camera tripod. Tighten the measuring tool with
the locking screw of the quick-change plate.
When positioning the tripod, observe that the
measurement will take place beginning from the
rear or front edge of the measuring tool, depend-
ing on the selected reference level.
Bosch Power Tools
All manuals and user guides at all-guides.com
Troubleshooting
Corrective Measures
Cause
Temperature indicator (d) flashes; measure-
ment not possible
The measuring tool is not
within the operating tem-
perature of – 10 °C to
+50 °C (+14 °F to
+122 °F), in the continuous
measurement function to
+40 °C (+104 °F).
Battery indication (c) is indicated
Battery voltage decreasing
(measurement still possi-
ble)
Battery indication (c) flashes, measurement
not possible
Battery voltage too low
The indications "Err." and " – – – – " are
indicated in the 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 18 or
the reception lens 19 are
misted up (e.g. due to a
rapid temperature change).
Calculated value is greater
than 99999 ft/ft
Calculated value is greater
than 99999 m/m
English | 21
Causes and
–
Corrective
Measure
Wait until the
measuring tool has
reached the oper-
ating temperature
Replace batteries
Replace batteries
Enlargen the angle
between the laser
beam and the
target
Work with the
laser target plate
22 (accessory)
Wipe the laser
beam outlet 18
and/or the recep-
tion lens 19 dry
using a soft cloth
Change unit of
2 3
/ft . measure to "m"
Divide calculation
2 3
/m . into intermediate
steps
2 609 140 583 | (31.7.08)