Indicators and Controls
BOMAG
20
BPR 70/70 D
Fig. 12
No. 11 = Operating hour meter
*
Fig. 13
No. 12 = Economizer display
**
3.3
Function of the Economizer
Surface covering compaction control is used to de-
termine the dynamic stiffness of the soil. A accel-
eration sensor measures the reaction of the soil to
the vibrating base plate of the vibratory plate. An
LED display shows the soil stiffness measuring
value as a non-dimensional value.
This continuous measuring display enables the
detection and directed subsequent compaction of
possibly arising weak spots.
Fig. 14
The Economizer consists of two components:
l
the evaluation and display module is integrat-
ed in the maintenance flap (within the opera-
tor's view). It shows the measuring value
measured by the compaction control.
l
The acceleration sensor is fastened to the
base plate. It converts the accelerations occur-
ring on the base plate into voltage signals.
For the output of the measuring value in the LED
display the voltage signal from the acceleration
sensor is picked up and processed by the evalua-
tion unit.
In order to achieve the required soil stiffness
measured in MN/m
2
, a reference measurement
(e.g. dynamic load plate) must be made before the
material is compacted.
This is necessary to find out how many LEDs in
the Economizer display correspond with the re-
quired value in MN/m
2
on the soil being compact-
ed.
*
Optional equipment
**
Optional equipment
Go to
Discount-Equipment.com
to
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