Aalborg Vortex Insertion - Manual (Page 68)

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5.3.12.2 Submenu Data Log Configuration
Using Data Logger Mode settings user can set data log to one of the following
configuration:
Loop On (default settings),
Loop Off,
Number of Samples
If Data Log configured to “Loop Off” mode, the Data Log will be locked (disabled)
when last record with index 15,871 is recorder. If Data Log configured to “Loop
On” mode, when last index (15,871) is reached, the firmware “wraps around” Data
Log index back to 0 and new records will overwrite old data records. If Data Log
configured to Number of Samples the Data Log will be locked (disabled) when
record index will be equal to value set in the Submenu Log # of Samples (see next
paragraph).
5.3.12.3 Submenu Log # of Samples
This menu entry allows user set exact number of samples to be taken (recorded)
when data log configured in to the “Number of Samples” mode (numerical entry).
By default “Number of Samples” parameter is set to maximum allowable value:
15,871.
5.3.12.4 Submenu Process Variable
This menu entry allows user to assign one of the four process variables (Vol. Flow,
Mass Flow, Temperature, and Pressure) to be recorded in to the data log (tabular
entry). By default the “Process Variable” parameter is set to Volumetric Flow.
5.3.12.5 Submenu Samples Interval
This menu entry allows user to select desired data log sample rate. Samples
Interval can be set to any value in the range between 1 to 3600 seconds (numeri-
cal entry). The Samples Interval value directly affects how long flow meter can col-
lect the PI data. For example: if “Samples Interval” value set to 1 second, the user
can collect data as long as 4 hours and 24 minutes; if “Samples Interval” value
set to 180 second (3 minutes), the user can collect data as long as 33 days 1 hour
and 36 minutes.
5.3.12.6 Submenu DL Start Condition
This menu entry allows user to select when Data Logger will start recording PI data
(tabular entry). Following settings are available:
Unconditional (default settings)
High PV Alarm
Low PV Alarm