Bosch GLM 150 C Professional Original Instructions Manual page 17

Briefly press the button or press and hold the
ton to open the Basic settings
Select .
Press the button or the
To confirm the selection, press the
The Bluetooth® symbol is shown on the display in white (f).
Bosch apps are available to expand the range of functions.
These can be downloaded in the respective app stores, de-
pending on the device.
The connection between mobile device and measuring tool is
established after the Bosch application has started. If multiple
active measuring tools are found, select the appropriate meas-
uring tool using the serial number. You can find the serial
number (15) on your measuring tool's type plate.
Deactivating the Bluetooth® interface
Briefly press the button or press and hold the
ton to open the Basic settings
Select .
Press the button or the
To confirm the selection, press the
The Bluetooth® symbol is shown on the display in grey.
Accuracy Check
Regularly check the accuracy of the grade measurement and
distance measurement.
Accuracy Check and Calibration of the Grade
Measurement
To do this, lay the measuring tool on a table and measure
the inclination.
Turn the measuring tool by 180° and measure the inclina-
tion again.
The difference between the displayed values must not ex-
ceed 0.3°.
In case of greater deviation, the measuring tool must be recalib-
rated.
Press and hold the button to call up the Basic functions
menu.
Select and confirm the selection with the
Follow the instructions on the display.
After strong temperature changes and after knocks, we
recommend an accuracy check and, if necessary, calib-
ration of the measuring tool. After a temperature variation, the
Bosch Power Tools
but-
menu.
button to select .
button.
but-
menu.
button to select .
button.
button.
measuring tool must adjust to the ambient temperature for a
while before calibration is performed.
Accuracy Check of the Distance Measurement
For the accuracy check, the measurement should be taken un-
der favourable conditions, i.e. the measuring section should be
indoors and the target surface for the measurement should be
smooth and reflect well (e.g. a white-painted wall).
Select a measuring section of approx. 3 to 10 m long, the
length of which you know exactly (e.g. room width, door-
way).
Measure the section 10 times in succession.
The deviation of individual measurements from the average
may be maximum ±2 mm throughout the entire measuring
section under favourable conditions. Log the measure-
ments, so that you can compare their accuracy at a later
point of time.
Checking accuracy and calibrating the target indicator
(crosshairs)
Regularly check the accuracy of alignment of laser and target
display.
To do so, select a light surface with lighting as weak as pos-
sible (e.g. a white wall) at a distance of at least 5 m as a tar-
get.
On the display, check whether the laser point is within the
target display.
If the laser point is not within the target display, you must
recalibrate the target display.
Recalibrating Target Display
Press and hold the button to get to the Basic functions
menu.
Select and confirm the selection with the
Follow the instructions on the display.
Working with the Tripod (Accessory)
The use of a tripod is helpful, particularly for greater distances.
Place the measuring tool with the 1/4" thread (17) on the
quick-release plate of the tripod (27) or of a commercially
available camera tripod.
Tighten the measuring tool with the quick-release plate
locking screw.
Set the reference level for measurements with a tripod (see
"Selecting the Reference Level", page 8).
English | 17
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1 609 92A 7P4 | (22.07.2022)