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Procedure
Set Density Damping to the value you want to use.
The default value is 1.6 seconds. The range is 0 to 10.24 seconds.
Tips
• A high damping value makes the process variable appear smoother because the reported value
changes slowly.
• A low damping value makes the process variable appear more erratic because the reported value
changes more quickly.
• Whenever the damping value is non-zero, the reported measurement will lag the actual
measurement because the reported value is being averaged over time.
• In general, lower damping values are preferable because there is less chance of data loss, and less
lag time between the actual measurement and the reported value.
The value you enter is automaticaly rounded down to the nearest valid value. The valid
values for Density Damping are: 0, 0.04, 0.08, 0.16, ... 10.24.
Effect of Density Damping on volume measurement
Density Damping affects liquid volume measurement. Liquid volume values are calculated
from the damped density value rather than the measured density value. Density Damping
does not affect gas standard volume measurement.
Interaction between Density Damping and Added Damping
In some circumstances, both Density Damping and Added Damping are applied to the reported
density value.
Density Damping controls the rate of change in the density process variable. Added Damping
controls the rate of change reported via the mA output. If mA Output Process Variable is set to
Density, and both Density Damping and Added Damping are set to non-zero values, density
damping is applied first, and the added damping calculation is applied to the result of the
first calculation.
4.5.4
Configure Density Cutoff
Display
Not available
ProLink II ProLink > Configuration > Density > Low Density Cutoff
Field Communicator Configure > Manual Setup > Measurements > Density > Density Cutoff
Overview
Density Cutoff specifies the lowest density value that will be reported as measured. All
density values below this cutoff will be reported as 0.
Configure process measurement
46 Micro Motion
®
9739 MVD Transmitters