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Example: Cutoff interaction with AO Cutoff lower than Mass Flow Cutoff
Configuration:
• mA Output Process Variable: Mass Flow Rate
• Frequency Output Process Variable: Mass Flow Rate
• AO Cutoff: 10 g/sec
• Mass Flow Cutoff: 15 g/sec
Result: If the mass flow rate drops below 15 g/sec, mass flow will be reported as 0, and 0
will be used in all internal processing.
Example: Cutoff interaction with AO Cutoff higher than Mass Flow Cutoff
Configuration:
• mA Output Process Variable: Mass Flow Rate
• Frequency Output Process Variable: Mass Flow Rate
• AO Cutoff: 15 g/sec
• Mass Flow Cutoff: 10 g/sec
Result:
• If the mass flow rate drops below 15 g/sec but not below 10 g/sec:
- The mA output will report zero flow.
- The frequency output will report the actual flow rate, and the actual flow rate will
be used in all internal processing.
• If the mass flow rate drops below 10 g/sec, both outputs will report zero flow, and 0
will be used in all internal processing.
4.2
Configure volume flow measurement for liquid
applications
The volume flow measurement parameters control how liquid volume flow is measured
and reported.
The volume flow measurement parameters include:
•
Volume Flow Type
•
Volume Flow Measurement Unit
•
Volume Flow Cutoff
Restriction
You cannot implement both liquid volume flow and gas standard volume flow at the same time. You
must choose one or the other.
Configure process measurement
26 Micro Motion
®
9739 MVD Transmitters