Quick Setup
Full Scale Flow
Use Full Scale Flow to set the maximum flow the system is expected to measure . This parameter
influences other system parameters, including:
• Frequency Output – Full scale frequency is observed at Full Scale Flow
• Low Flow Cutoff – Changes to Full Scale Flow affect the measuring cut-off threshold of the meter
• Alarm Outputs – Changes to Full Scale Flow adjust the thresholds for generating set point alarms
• Pulse Outputs – Changes to Full Scale Flow adjust the pulse frequency and duty cycle
• Analog Outputs – Changes to Full Scale Flow adjust the interpretation of the analog output signal
Change the Full Scale Flow based on the meter size and the application’s requirements . Verify that the
Full Scale Flow falls within the meter suggested flow range limits . In terms of flow velocity, the meter
limits are 0 .1…39 .4 feet/second . The Full Scale Flow is valid for both flow directions .
OTE:
N
If the flow rate exceeds the full scale setting, an error message indicates the configured full
scale range has been exceeded . However, the meter continues to measure . This affects the
latency of the pulse outputs and may cause overflow . Furthermore, the analog output may be
placed in alarm mode .
To set or change the Full Scale Flow, follow these steps from the
Quick Setup
menu:
1 . Select
Full Scale Flow
to view the
Full Scale Flow
display .
2 . Select a value for Full Scale Flow .
3 . Press [
E
] to save the Full Scale Flow value and return to the
Measurements
menu .
Low Flow Cutoff
Low Flow Cutoff defines the threshold at which flow measurement is forced to zero . The cutoff value
can be set at 0…10% of the Full Scale Flow . Increasing this threshold helps prevent false readings
during “no flow” conditions possibly caused by pipe vibration or inherent system noise .
To change Low Flow Cutoff, follow these steps from the
Low Flow Cutoff
display .
1 . Select a value for Low Flow Cutoff, between 0% and 10% .
2 . Press [
E
] to save the value .
Programming the M2000 Meter
Page 33
March 2022
MAG-UM-01272-EN-21
