Aalborg Vortex - Manual (Page 37)

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5.3.5 Submenu L1 Totalizer Menu
5.3.5.1 Submenu L2 Totalizer#1 and Totalizer#2
Menus
Vortex flow meter provides the user with two independent Programmable Flow
Totalizers. Each Totalizer can be configured for Volumetric or Mass flow.
The total volume of the flowing fluid is calculated by integrating the actual instan-
taneous fluid flow rate with respect to time. The Totalizers value are stored in the
Battery Backed RAM and saved every 1 second. In case of power interruption the
last saved Totalizers values will be loaded on the next power on cycle, so Totalizers
reading will not be lost. The LCD/keypad and digital communication interface com-
mands are provided to:
- Enable/Disable totalizing the flow
- configure totalizer to Volumetric or Mass flow process variable
- start the totalizer at a preset flow rate (in current Vol. or Mass flow units)
- assign action at a preset total volume (Event Volume)
- reset the totalizer to ZERO
NOTE: Before enabling the Totalizer, ensure that all totalizer settings are
configured properly. Totalizer Start values have to be entered in
currently active Volumetric or Mass flow engineering unit. The Totalizer
will not totalize until the process flow rate becomes equal to or more
than the Totalizer Start value. Totalizer Event values must be entered in
currently active volume or mass based engineering units. If the
Totalizer Event at preset total volume feature is not required, then set
Totalizer Event value to zero (default settings).
before an alarm condition is indicated. Valid settings are in the range of
0 to 3600 seconds.
e) Pressure Alarm Action Latch Tabular entry
The Pressure Alarm Action Latch settings controls Latch feature when
optically isolated outputs are assigned to Pressure Alarm event. Following
settings are available: Disable or Enabled.
By default, Pressure alarm is non-latching. That means the alarm is
indicated only while the monitored Pressure value exceeds the specified
set conditions. If optically isolated output is assigned to the Pressure
Alarm event, in some cases, the Pressure Alarm Latch feature may be
desirable.