Bosch Professional GLM 50-27 CG Original Instructions Manual page 27

Press the button to start the second measurement, e.g. the width of a room.
Press the button to start the third measurement, e.g. the height of a room.
10.160 m
0.0°
11.430 m
(d)
12.700 m
3
1474.8 m
(e)
Indirect distance measurement
Indirect distance measurement is used to measure distances that cannot be measured dir-
ectly 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 a vertical direction. Any devi-
ation in a horizontal direction leads to measuring errors.
Indirect distance measurement is always less accurate than direct distance measurement.
For application-related reasons, measuring errors can be greater than with direct distance
measurement. To improve measuring accuracy, the use of a tripod (accessory) is recom-
mended.
When using a tripod, observe the set reference level. (see "Selecting the Reference
Level", page 18)
The laser beam remains switched on between the individual measurements.
For indirect distance measurement, 3 measuring functions are available, with which dif-
ferent sections can be respectively determined:
– Indirect height measurement
– Double indirect height measurement
– Indirect length measurement
Bosch Power Tools
After the third measurement has been completed, the volume
will be automatically calculated and displayed. The result is
displayed in the result line (e). The individual measured val-
ues are in the measured value lines (d).
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