40
Measuring result not plausible
The target surface does not
reflect correctly (e.g. water,
glass).
Cover off the target surface.
Laser beam output 18,
reception lens 20 or digital
viewfinder 19 is covered.
Keep the laser beam output
18, reception lens 20 and
digital viewfinder 19 clear.
Wrong reference level set. Select reference level
that corresponds to
measurement.
Obstruction in path of laser
beam.
Laser point must be
completely on target surface.
The measuring tool monitors the correct function
for each measurement. When a defect is
determined, only the symbol shown aside flashes
in the display. In this case, or when the above
mentioned corrective measures cannot correct an
error, have the measuring tool checked by an after-sales
service agent for Bosch power tools.