Adjustable (Variable) Frequency - (Optional); Dynapac Compaction Meter (Dcm) Including Active Bouncing Control (Abc) - Optional - Fayat Group DYNAPAC CA5000 Instruction Manual

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2
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Fig. Function keys
1. Adjustable (Variable) frequency (LED
on)
2. Frequency, increase
3. Frequency, decrease
Soil type(s) Soil type(s)
Fine grade soils (clay and silt) Fine grade soils (clay and silt)
Mixed grade soils (loamy and silty) Mixed grade soils (loamy and silty)
Coarse grade soils (sand and gravel) Coarse grade soils (sand and gravel)
Rock fill (crushed rock and rockfill) Rock fill (crushed rock and rockfill)
Fig. Principal components
1. Display with CMV view
2. Sensor/Processor unit
2019-10-01

Adjustable (Variable) frequency - (Optional)

Optimum vibration speed depends on the soil type that
is to be compacted and the chosen vibration amplitude.
If double jumps occur, reduce the vibration frequency
if possible as an initial measure.
If this does not help, select a lower amplitude instead,
if possible.
Dynapac Compaction Meter (DCM) including
Active Bouncing Control (ABC) - Optional
The Compaction Meter is an accessory used to ensure
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the compaction result and enables optimal material
processing. If the Compaction Meter is mounted on
2
the machine, a separate view in the machine display
indicates the stiffness of the surface as a compaction
meter value (CMV, Evib1 or Evib2).
CMV is the value traditionally used on Dynapac rollers.
It is calculated based on a numerical analysis of the
vibration frequency of the drum and the harmonics the
occur as the dynamic stiffness in the compacted
material increases. CMV is a dimensionless, relative.
Evib1 and Evib 2 are calculates based on the drum
contact force on the ground and the deformation that
occurs in the compacted material. A low contact force
that causes a big deformation results in a low Evib
value. High force and low deformation consequently
results in a high Evib value. Evib1 is calculated on the
downward movement of the drum (loading phase).
4812158701_G.pdf
High amplitude High amplitude
24 - 26 Hz 24 - 26 Hz
24 - 26 Hz 24 - 26 Hz
26 - 28 Hz 26 - 28 Hz
24 - 26 Hz 24 - 26 Hz
Operation
Low amplitude Low amplitude
28 - 30 Hz 28 - 30 Hz
29 - 31 Hz 29 - 31 Hz
31 - 33 Hz 31 - 33 Hz
31 - 33 Hz 31 - 33 Hz
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