Emerson Micro Motion 5700 Configuration And Use Manual page 54

Configure process measurement
Overview
Gas Standard Volume Flow Cutoff specifies the lowest gas standard volume flow rate that
will reported as measured. All gas standard volume flow rates below this cutoff will be
reported as 0.
Procedure
Set Gas Standard Volume Flow Cutoff to the value you want to use.
• Default: 0.0
• Range: 0.0 to any positive value
Interaction between Gas Standard Volume Flow Cutoff and
mA Output Cutoff
Gas Standard Volume Flow Cutoff defines the lowest Gas Standard Volume flow value that
the transmitter will report as measured. mA Output Cutoff defines the lowest flow rate
that will be reported via the mA output. If mA Output Process Variable is set to Gas Standard
Volume Flow Rate, the volume flow rate reported via the mA output is controlled by the
higher of the two cutoff values.
Gas Standard Volume Flow Cutoff affects both the gas standard volume flow values
reported via outputs and the gas standard volume flow values used in other transmitter
behavior (e.g., events defined on gas standard volume flow).
mA Output Cutoff affects only flow values reported via the mA output.
Example: Cutoff interaction with mA Output Cutoff lower than Gas Standard Volume
Flow Cutoff
Configuration:
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•
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Result: If the gas standard volume flow rate drops below 15 SLPM, the volume flow will be
reported as 0, and 0 will be used in all internal processing.
Example: Cutoff interaction with mA Output Cutoff higher than Gas Standard Volume
Flow Cutoff
Configuration:
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mA Output Process Variable for the primary mA output: Gas Standard Volume Flow Rate
Frequency Output Process Variable: Gas Standard Volume Flow Rate
mA Output Cutoff for the primary mA output: 10 SLPM (standard liters per minute)
Gas Standard Volume Flow Cutoff: 15 SLPM
mA Output Process Variable for the primary mA output: Gas Standard Volume Flow Rate
Frequency Output Process Variable: Gas Standard Volume Flow Rate
mA Output Cutoff for the primary mA output: 15 SLPM (standard liters per minute)
Gas Standard Volume Flow Cutoff: 10 SLPM
Micro Motion Model 5700 with Ethernet Transmitters