VESDA -E VES-A00-P Product Manual page 68

VESDA-E VES-A00-P Product Guide
Holidays: The settings used to define a holiday period. Use the dropdown calendars to choose the
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start and end times of the holiday (or break) period. Night time thresholds are used during the holiday
period.
5.5.7 Airflow Options
The Airflow options provide the ability to set:
limits for what the detector considers to be normal airflow behavior for the sampling pipe network
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which pipe inlets are being used
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aspirator speed
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These settings should be confirmed in the ASPIRE design of the sampling pipe network.
Note: Refer to Section 5.6 for the default settings.
The Airflow configuration options are as follows:
Air Flow: The air flow conditions, as a percentage of the normalized air flow, that will cause a fault to be
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reported. If the installation site flow conditions vary significantly, it is recommended that the Major High
and Major Low parameters are set closer to their limits.
Major High: The level of air flow considered to be so far above normal as to require urgent attention.
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Minor High: The level of air flow considered to be above normal but not urgent.
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Minor Low: The level of air flow considered to be below normal but not urgent.
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Major Low: The level of air flow considered to be so far below normal as to require urgent attention.
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Significant Flow Change: The amount of airflow change at which an event is recorded in the event log.
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Delay: The length of time between the air flow fault threshold being reached and the fault relay operation.
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Valve Test: The time interval between automatic tests of the scanning valves.
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Pipes in Use: The pipes that are actually being used. Refer to Section 3.3 on page 15 for further
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information.
Aspirator: Select the required Aspirator Speed setting 1 through 10, as determined using ASPIRE.
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Figure 5-18: Airflow Options
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