Configure Mass Flow Cutoff - Emerson Micro Motion 2700 Configuration And Use Manual

• 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 automatically rounded off to the nearest valid value. For example, if
the damping is currently set to 0.8 seconds, any value entered up to 1.2 seconds will be
rounded down to 0.8 seconds, and any value entered from 1.21 to 1.59 seconds will be
rounded up to 1.6 seconds.
Effect of flow damping on volume measurement
Flow damping affects volume measurement for liquid volume data. Flow damping also
affects volume measurement for gas standard volume data. The transmitter calculates
volume data from the damped mass flow data.
4.1.3

Configure Mass Flow Cutoff

Display
ProLink III
Field Communicator Configure > Manual Setup > Measurements > Flow > Mass Flow Cutoff
Fieldbus host
Overview
Mass Flow Cutoff specifies the lowest mass flow rate that will be reported as measured. All
mass flow rates below this cutoff will be reported as 0.
Procedure
Set Mass Flow Cutoff to the value you want to use.
The default value for Mass Flow Cutoff is 0.0 g/sec or a sensor-specific value set at the
factory. The recommended value is 0.5% of the nominal flow rate of the attached sensor.
See the sensor specifications. Leaving Mass Flow Cutoff at 0.0 g/sec is not recommended.
Effect of Mass Flow Cutoff on volume measurement
Mass Flow Cutoff does not affect volume measurement. Volume data is calculated from
the actual mass data rather than the reported value.
Volume flow has a separate Volume Flow Cutoff that is not affected by the Mass Flow
Cutoff value.
Configuration and Use Manual
Not available
Device Tools > Configuration > Process Measurement > Flow
Measurement TB > MASS_LOW_CUT (OD Index 38)
Configure process measurement
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