Bosch GLM 30 Professional Original Instructions Manual page 21

OBJ_BUCH-2004-005.book Page 21 Friday, December 18, 2015 4:09 PM
 Avoid heavy impact to or falling down of the measuring tool. After severe exte-
rior effects to the measuring tool, it is recommended to carry out an accuracy
check (see "Accuracy Check of the Distance Measurement", page 23) each time
before continuing to work.
Switching On and Off
To switch on the measuring tool, briefly press the measuring button 2. Measuring tool
and laser are switched on.
 Do not leave the switched-on measuring tool unattended and switch the mea-
suring tool off after use. Other persons could be blinded by the laser beam.
To switch off the measuring tool, press the measuring button 2 and hold it down.
Measuring Procedure (see figure A)
Once switched on, the measuring tool is in the length measurement mode.
The rear edge of the measuring tool is always the reference level for the measure-
ment.
Place the measuring tool against the desired starting point of the measurement (e.g.
a wall).
Briefly press the measuring button 2 to initiate the measurement. Then the laser
beam is switched off. To switch the laser beam on again, briefly press the measuring
button 2. To initiate a further measurement, briefly press the measuring button 2
again.
 Do not point the laser beam at persons or animals and do not look into the la-
ser beam yourself, not even from a large distance.
Note: The measured value typically appears within 0.5 seconds and no later than
4 seconds. The duration of the measurement depends on the distance, the lighting
conditions and the reflective properties of the target surface. Upon completion of the
measurement the laser beam is automatically switched off.
Auto-Sum (see figure B)
The auto-sum automatically shows the sum of all individual measurements (e.g. use-
ful for the material calculation).
The auto-sum value is erased as soon as the device is switched off or if it automatically
switches off when no button is pressed after 5 minutes.
The auto-sum is not saved. A subsequent correction of the auto-sum is not possible.
Aim the laser beam at the target surface.
Bosch Power Tools
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1 609 92A 25N | (18.12.15)