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OBJ_BUCH-3181-006.book Page 32 Thursday, April 12, 2018 9:20 AM
32 | English
Cause
"CAL" and "ERROR" indication in the display
The calibration of the grade
measurement was not carried
out in the correct sequence or in
the correct positions.
The surfaces used for the cali-
bration were not accurately
aligned (horizontal or vertical).
The measuring tool was moved
or tilted while pressing the but-
ton.
Battery charge indicator (g), temperature warning and
"ERROR" indicator in the display
Temperature of the measuring
tool not within the allowable
charge-temperature range
Battery charge-control indicator (g) and "ERROR" indi-
cation in the display
Battery charging voltage not cor-
rect
Measuring result not plausible
The target surface does not re-
flect correctly (e.g. water,
glass).
The laser beam output 18, re-
ception lens 20 or camera 19 is
covered.
Wrong reference level set
Obstruction in path of laser
beam
Bluetooth® cannot be activated
The battery is too low.
1 609 92A 4F4 | (12.4.18)
Corrective Measure
Cause
No Bluetooth® connection
Repeat the calibration ac-
Failure of the Bluetooth® con-
cording to the instructions
nection
on the display and in the
operating instructions.
Repeat the calibration on a
horizontal or vertical sur-
face; if required, check the
surface first with a level.
Repeat the calibration and
hold the measuring tool in
place while pressing the
button.
Wait until the charge-tem-
perature range is reached.
Check if the plug-in con-
nection has been estab-
lished correctly and if the
battery charger is operat-
ing properly. When the
unit symbol is flashing, the
battery is defective and
Data transmission via USB interface not possible
must be replaced by a
Micro USB cable
Bosch after-sales service.
Cover off the target sur-
face
Keep the laser beam out-
put 18, reception lens 20
and camera 19 clear
Select reference level that
corresponds to measure-
ment
after-sales service agent for Bosch power tools.
Laser point must be com-
pletely on target surface.
Maintenance and Service
Charge the measuring
Maintenance and Cleaning
tool's battery.
Keep the measuring tool clean at all times.
Do not immerse the measuring tool in water or other fluids.
Wipe off debris using a moist and soft cloth. Do not use any
cleaning agents or solvents.
Clean the reception lens 20, laser beam exit opening 18 and
camera 19 particularly carefully:
Ensure that there is no dirt on the reception lens, the laser
beam exit opening or the camera. Clean the reception lens,
the laser beam exit opening and the camera only with cleaning
agents also suitable for camera lenses. Do not attempt to re-
move dirt from the reception lens, laser beam exit opening or
Corrective Measure
Switch Bluetooth® off and
back on again on the meas-
uring tool and mobile end
device.
Check the application on
your mobile terminal/de-
vice.
Check if Bluetooth® is acti-
vated on your measuring
tool and mobile termi-
nal/device.
Check your mobile termi-
nal/device for overload.
Reduce the distance be-
tween measuring tool and
your mobile terminal/de-
vice.
Avoid obstructions (e.g.,
reinforced concrete, metal
doors) between measur-
ing tool and your mobile
terminal/device. Observe
clearance to electromag-
netic disturbances (e.g.,
WLAN transmitters).
Check the proper and tight
seating of the micro USB
cable.
Check the micro USB ca-
ble for damage.
The measuring tool monitors the correct op-
eration in each measurement. If a defect is de-
tected, the display will show only the adjacent
symbol. In this case, or when the above men-
tioned corrective measures cannot correct an
error, have the measuring tool checked by an
Bosch Power Tools
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