Honeywell Vertex M, Техническое руководство

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Vertex M
TM
24-Point Continuous Monitor
Section 3 - Startup 3-13
Logging Rate
The Logging Rate option sets the
frequency that Vertex M enters gas
concentration data into the
database. The system logs data at
a slow rate unless a gas concentration
rises above the threshold set in the
point configuration window. Once the
concentration reaches the threshold,
Vertex M logs at a faster rate. Logging
period options are 5, 10, 30, 60, or 120
seconds for the slow rate and 5, 10, 15,
20, 30, or 45 seconds for the fast rate.
(See Section 3.5.4, Configure Point, for
instructions to set logging frequency.)
DB Management
Sets the time period to maintain historical
event and concentration data before purging.
Set the purge period in Database Management
to prevent a large number of records to accumulate.
Note:
Setting the Vertex M System to continuously log concentration data on a 3-analyzer system requires approximate-
ly 15 megabytes of disk storage per day at the fastest logging rate of once every 5 seconds. Purge data often to
avoid filling available disk space.