eFlo 2.0 Electronic Flow Meter Operations Manual
Super Systems Inc.
Page 23 of 39
Basic Configuration Menu
These values are read-only and are meant for diagnostic purposes.
Flow: The current flow reading
Inlet Pressure: Line Pressure measured by the high pressure
sensor; the value is based on the unit set in the Units menu.
Differential Pressure: Pressure measured by the high and low
pressure sensors; the value is based on the unit set in the Units
menu.
Gas Temperature: Line Temperature; the value is based on the
unit set in the Units menu.
Max Tare Button: This button is used to set the max valve position.
The eFlo must be in manual mode. Manually open the valve until
the max flow is achieved, then press the button.
Zero Tare Button: This button is used to zero the meter reading.
The eFlo must be in manual mode. Manually close the valve, then
press the button.
Press
to return to the menu screen.
Figure 11: Process Variable Menu
Basic Configuration - Flow Alarm Menu
Low Flow Alarm Limit: Triggers an alarm if the flow drops below the
programmed value (0 = alarm not set).
High Flow Alarm Limit: Triggers an alarm if the flow increases above
the programmed value (0 = alarm not set).
Low Pressure Alarm Limit: Triggers an alarm if the supply pressure
drops below the programmed value (0 = alarm not set).
Deviation Alarm Limit: Triggers an alarm after 60 seconds if the flow
PV deviates from the flow SP more than the defined deviation (0 =
alarm not set).
Under Pressure Mask: Triggers an alarm when the differential
pressure is less than 3” W.C. of the supply pressure (On = alarm is
active).
Valve Shut Mask: Triggers a “Shut” display when the flow is less
than 10% of the maximum flow and there is pressure available. This
alarm is used mainly on manual eFlo meters and in-line meters to
alert the user that the meter’s valve may not be fully closed (On =
alarm is active).
High Limit Mask: Triggers an alarm when the valve is fully opened to
its maximum limit (On = alarm is active).
Figure 12: Flow Alarm
Menu