Bosch GLM 100 C Original Instructions Manual page 26

OBJ_BUCH-1956-002.book Page 26 Monday, July 1, 2013 11:28 AM
26 | English
Continuous measurement automatically switches off after
5 min. The last measured value remains indicated in the result
line c.
Indirect Distance Measurement
Note: Indirect distance measurement is always less accurate
than direct distance measurement. Depending on applica-
tion, greater measuring errors are possible than with direct
distance measurement. To improve the measuring accuracy,
we recommend using a tripod (accessory).
The indirect distance measurement is used to measure dis-
tances that cannot be measured directly because an obstacle
would obstruct the laser beam or no target surface is available
as a reflector. This measuring procedure can only be used in
vertical direction. Any deviation in horizontal direction leads
to measuring errors.
The laser beam remains switched on between the individual
measurements.
For indirect length measurements, three measuring modes
are available. Each measuring mode can be used for deter-
mining different distances.
a) Indirect height measurement (see figure C)
Press the function-mode button 8 until the indication for indi-
rect height measurement appears on the display.
1
Pay attention that the measuring tool is positioned at the
same height as the bottom measuring point. Now, tilt the
measuring tool around the reference plane and measure dis-
tance "1" as for a length measurement.
Upon completion of the measurement,
the result for the sought distance "X" is
displayed in the result line c. The measur-
ing values for the distance "1" and the an-
gle " α"are displayed in the measured-
value lines a.
b) Double indirect height measurement (see figure D)
Press the function-mode button 8 until the indication for dou-
ble indirect height measurement
Measure distances "1" and "2" in this sequence as for a
length measurement.
Upon completion of the measurement,
the result for the sought distance "X" is
displayed in the result line c. The measur-
ing values for the distances "1", "2" and
the angle " α" are displayed in the meas-
ured-value lines a.
Pay attention that the reference plane of the measurement
(e.g. the rear edge of the measuring tool) remains exactly at
the same location for all individual measurements within a
measuring sequence.
c) Indirect length measurement (see figure E)
Press the function-mode button 8 until the indication for indi-
rect length measurement appears on the display.
1
Pay attention that the measuring tool is positioned at the
same height as the sought measuring point. Now, tilt the
2 609 141 026 | (1.7.13)
measuring tool around the reference plane and measure dis-
tance "1" as for a length measurement.
Wall Surface Measurement (see figure F)
The wall surface measurement is used to determine the sum
of several individual surfaces with a common height.
In the example shown, the total surface of several walls that
have the same room height A, but different lengths B, are to
be determined.
For wall surface measurements, press the function-mode but-
ton 8 until the indicator for wall surface measurement
pears on the display.
Measure the room height A as for a length measurement. The
measured value ("cst") is displayed in the top measured-val-
ue line a. The laser remains switched on.
surface value is displayed in the result line c.
In this manner, you can measure any number of further
lengths B
appears on the display.
1
height A.
2
The condition for a correct area/surface calculation is that the
first measured length (in the example the room height A) is
identical for all partial surfaces.
Grade Measurement (see figure G)
After pressing the grade measurement button 3, the indica-
tion for grade measurement appears on the display
backside of the measuring tool is used as the reference plane.
By pressing the grade measurement button 3 again, the side
surfaces of the measuring tool are used as reference plane
and the display view is shown turned by 90°.
Press the measuring button 2 to lock the measuring value and
accept it in the measured values memory. Pressing the meas-
uring button 2 again continues the measurement.
When the indication flashes during the measuring procedure,
then the measuring tool was tilted too much in lateral direc-
tion.
Upon completion of the measurement,
the result for the sought distance "X" is
displayed in the result line c. The measur-
ing values for the distance "1" and the an-
gle " α" are displayed in the measured-
value lines a.
Afterwards, measure length B
wall. The surface is automatically calcu-
lated and displayed in the result line c.
The length measurement value is dis-
played in the centre measured-value line
a. The laser remains switched on.
Now, measure length B
wall. The individually measured value dis-
played in the centre measured-value line
a is added to the length B
both lengths ("sum", displayed in the
bottom measured-value line a) is multi-
plied with the stored height A. The total
, which are automatically added and multiplied with
X
ap-
of the first
1
of the second
2
. The sum of
1
. The
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