Bosch PLR 30 C Notice Originale page 32

32 | English
Errors – causes and corrective measures
Cause
Temperature warning symbol (thermometer) is shown on the display, operation is
not possible
Measuring tool is outside of the operating
temperature range of –10 °C to +40 °C.
Battery indicator decreasing
The battery voltage is weakening (measur-
ing is still possible).
Battery indicator empty, measurement not possible
Battery voltage too low
"Error" indicator and "−−−−" shown on the display
Angle between laser beam and target is too
acute.
Target surface is too reflective (e.g. mirror)
or not reflective enough (e.g. black mater-
ial), or ambient light is too bright.
The laser beam output (13) and/or recep-
tion lens (12) are fogged up (e.g. due to a
rapid temperature change).
Calculated value is larger than 999,999 or
smaller than -999,999 m/m
Measuring result is unreliable
Target surface reflection not distinct (e.g.
water, glass).
Laser beam output (13) and/or reception
lens (12) are covered.
Measurement result implausible
An incorrect reference level has been set.
Obstruction in the path of the laser beam
Bluetooth® cannot be activated
1 609 92A 4P0 | (18.01.2019)
Corrective measures
Wait until the measuring tool has reached
operating temperature.
Change the batteries or battery pack
Change the batteries or battery pack
Increase the angle between the laser beam
and the target
Use the laser target plate (16) (accessory)
Dry the laser beam output (13) and/or re-
ception lens (12) with a soft cloth
Divide the calculation into intermediate
2 3
/m . steps.
Cover the target surface.
Keep the laser beam output (13) and/or re-
ception lens (12) clear
Select a reference level that is appropriate
for the measurement.
The laser point must be fully on the target
surface.
Bosch Power Tools