Configure Density Cutoff - Emerson Micro Motion 5700 Configuration And Use Manual

• A low damping value makes the process variable appear more erratic because the reported value
changes more quickly.
• The combination of a high damping value and rapid, large changes in density can result in
increased measurement error.
• Whenever the damping value is non-zero, the damped value will lag the actual measurement
because the damped 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 damped value.
• If a number greater than 60 is entered, it is automatically changed to 60.
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 mA Output
Damping
When the mA output is configured to report density, both Density Damping and mA
Output Damping are applied to the reported density value.
Density Damping controls the rate of change in the value of the process variable in
transmitter memory. mA Output Damping controls the rate of change reported via the mA
output.
If mA Output Source is set to Density, and both Density Damping and mA Output Damping
are set to non-zero values, density damping is applied first, and the mA output damping
calculation is applied to the result of the first calculation. This value is reported over the
mA output.
4.5.3

Configure Density Cutoff

Display
ProLink III
Web browser
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.
Procedure
Set Density Cutoff to the value you want to use.
• Default: 0.2 g/cm³
• Range: 0.0 g/cm³ to 0.5 g/cm³
Configuration and Use Manual
Menu > Configuration > Process Measurement > Density > Cutoff
Device Tools > Configuration > Process Measurement > Density > Density Cutoff
Configuration > Process Measurement > Density > Density Cutoff
Configure process measurement
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