Maintenance And Service; Maintenance And Cleaning - Bosch GLM Professional 250 VF Originalbetriebsanleitung

OBJ_BUCH-947-004.book Page 33 Friday, July 3, 2009 8:44 AM
Cause
The indications "ERROR" 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 mir-
ror) or insufficiently (e.g.
black fabric), or the ambi-
ent light is too bright.
The laser beam outlet 27
or the reception lens 26
are misted up (e.g. due to
a rapid temperature
change).
Calculated value is great-
2 3
er than 999999 m/m /m
The indication "ERROR" flashes at the top in
the display
Addition/Subtraction of
measured values with
different units of measure
Measuring result not plausible
The target surface does
not reflect correctly
(e.g. water, glass).
The laser beam outlet 27
or the reception lens 26
are covered.
Wrong reference level set Select reference
Obstruction in path of
laser beam
Bosch Power Tools
Corrective
Measure
case, or when the above mentioned corrective
Enlargen the angle
measures cannot correct an error, have the
between the laser
measuring tool checked by an after-sales service
beam and the
agent for Bosch power tools.
target
Work with the
Accuracy Check of the Measuring Tool
laser target plate
The accuracy of the measuring tool can be
32 (accessory)
checked as follows:
– Select a permanently unchangeable measur-
Wipe the laser
beam outlet 27
and/or the recep-
tion lens 26 dry
using a soft cloth
– Measure the distance 10 times after another.
Divide calculation
. into intermediate
The deviation of the individual measurements
steps from the mean value must not exceed ±1.5 mm
(max.). Log the measurements, so that you can
compare their accuracy at a later point of time.
Only add/subtract
measured values

Maintenance and Service

with the same
units of measure

Maintenance and Cleaning

Store and transport the measuring tool only in
Cover off the
the supplied protective pouch.
target surface
Keep the measuring tool clean at all times.
Do not immerse the measuring tool in water or
Make sure that the
other fluids.
laser beam outlet
27 or the recep-
Wipe off debris using a moist and soft cloth.
tion lens 26 are
Do not use any cleaning agents or solvents.
unobstructed
Maintain the reception lens 26 in particular,
with the same care as required for eye glasses
level that corre- or the lens of a camera.
sponds to meas-
urement
Laser point must
be completely on
target surface.
The measuring tool monitors the
correct function for each meas-
urement. When a defect is deter-
mined, only the symbol shown
aside flashes in the display. In this
ing section with a length of approx. 1 to 10
metres; its length must be precisely known
(e.g. the width of a room or a door opening).
The measuring distance must be indoors; the
target surface for the measurement must be
smooth and reflect well.
1 609 929 T67 | (3.7.09)
English | 33