Bosch GLM 40 Instrucciones De Funcionamiento Y Seguridad página 17

Causes and Corrective Measures
CAUSE
Temperature warning indicator (f) flashing; measurement not
possible
The measuring tool is outside the
operating temperature range from
–14°F to +122°F (in the function
continuous measurement up to
+104°F).
"ERROR" indication in the display
Addition/Subtraction of measured
values with different units of
measure.
The angle between the laser beam
and the target is too acute.
The target surface
too intensely (e.g. a mirror) or
insufficiently (e.g. black fabric), or
the ambient light is too bright.
The laser beam outlet 11 or the
reception lens 12 are misted up
(e.g. due to a rapid temperature change).
Calculated value is greater than
999999 m/m 2 /m 3 .
Unreliable measuring result
The target surface does not reflect
correctly (e.g. water, glass).
The laser beam outlet 11 or the
reception lens 12 are covered.
Troubleshooting –
Wait until the measuring tool has
reached the operating temperature.
Only add/subtract measured values
with the same units of measure.
Increase the angle between the
laser beam and the target.
reflects Work with the laser target plate 18
(accessory).
Wipe the laser beam outlet 11 and/
or the reception lens 12 dry using a
soft cloth.
Divide calculation into intermediate
steps.
Cover off the target surface.
Make sure that the laser beam
outlet 11 or the reception lens 12
are unobstructed
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CORRECTIVE MEASURE