Configure Volume Flow Cutoff - Emerson Micro Motion 5700 Configuration And Use Manual

Configure process measurement
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4.3.3

Configure Volume Flow Cutoff

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Overview
Volume Flow Cutoff specifies the lowest volume flow rate that will be reported as
measured. All volume flow rates below this cutoff are reported as 0.
Procedure
Set Volume Flow Cutoff to the value you want to use.
• Default: 0.0 l/sec (liters per second)
• Range: 0 l/sec to x l/sec, where x is the sensor's flow calibration factor, in units of l/sec,
multiplied by 0.2
Interaction between Volume Flow Cutoff and mAO Cutoff
Volume Flow Cutoff defines the lowest liquid volume flow value that the transmitter will
report as measured. mAO Cutoff defines the lowest flow rate that will be reported via the
mA output. If mA Output Process Variable is set to Volume Flow Rate, the volume flow rate
reported via the mA output is controlled by the higher of the two cutoff values.
Volume Flow Cutoff affects both the volume flow values reported via the outputs and the
volume flow values used in other transmitter behavior (e.g., events defined on the volume
flow).
mAO Cutoff affects only flow values reported via the mA output.
Example: Cutoff interaction with mAO Cutoff lower than Volume Flow Cutoff
Configuration:
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40
Calculate the conversion factor:
a. 1 gal/sec = 8 pints/sec
b. Volume Flow Conversion Factor = 1 ÷ 8 = 0.1250
Set Volume Flow Conversion Factor to 0.1250.
Set Volume Flow Label to pints/sec.
Set Volume Total Label to pints.
Menu > Configuration > Process Measurement > Flow Variables > Volume Flow Settings >
Low Flow Cutoff
Device Tools > Configuration > Process Measurement > Flow > Volume Flow Cutoff
Configuration > Process Measurement > Flow Variables > Volume Flow Cutoff
mA Output Process Variable: Volume Flow Rate
Frequency Output Process Variable: Volume Flow Rate
AO Cutoff: 10 l/sec
Micro Motion Model 5700 with Ethernet Transmitters