|Data Archive provides user-configurable daily
records of data monitored by LEAKNET. These time-tagged records can be
used to meet Department of Transportation data logging requirements and to
investigate the cause of leaks or unusual events.
Time Archive Log
Each active PPA™ point can be scheduled to record at any of the
- Every reading
- One minute
- Five minutes
- Fifteen minutes
- Thirty minutes
- Sixty minutes
Event Archive Log
This Log provides a complete record of the readings before, during
and after an event. It records approximately 10 minutes worth of data
preceeding the event, the entire event, and a user-selectable amount of
time after the event clears.
You can select which active PPA™ point or set of points initiate Event
Viewing the Data
Logs can be viewed in tabular or graphical format. Both presentations
can be printed.
Data for up to five points can be graphed at the same time. This
facilitates comparisons among points so interrelationships are clearly
seen. A "zoom" feature provides a high resolution display of a
single point so noise and small changes become visible. A "Jump"
feature quickly moves to any time period you select.
Both Logs cover a 24-hour time period beginning at midnight. The Time
Archive Log is maintained continuously. The Event Archive Log is written
only when an event occurs. The hard drive has sufficient capacity to
maintain approximately a years records for the average user.
When the hard drive is near storage capacity, a message is
displayed to alert the operator. If the operator does not delete or copy
files, the oldest are automatically overwritten.
The user has complete file management capability. Files can be deleted,
moved onto floppy disk for permanent storage, or imported to spreadsheets.
Data Archive can be included as part of the initial order or added to
at a later time.