Xtralis VESDAnet Product Manual page 19

Xtralis VESDA
®
Configuring Relays
The VLF has three relays: Fault, Action and Fire 1. Using VSC the
configuration is shown below.
Figure 6 - VLF Relay config screen as viewed from VSC
Minimum Status Period
With the VLF detector, the minimum interval between detector status
messages being sent across the network can be set up to 20 seconds.
However the LCD Programmer software only supports a range of 2 to 10
seconds (the parameter is called 'Detector Minimum Period').
If the higher range is required then VSC must be used to configure.
If a higher range has been previously set with VSC and the user views the
setting using the LCD Programmer, the software will not allow the higher
setting unless the user exits the screen without applying any changes.
Flow Settings
When the LCD Programmer is used the VLF Minor Flow Averaging Period is
set using the Airflow Delay. The number entered is the averaging period and
not the delay to the airflow fault. The maximum value that can be entered is
60s compared to the 15 minutes of the standalone VLF (without interface
card installed).
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