Xtralis VESDA LCD Programmer Product Guide Xtralis VESDA
®
16 www.xtralis.com
19. Smoke Change - The change in obscuration rate mentioned here will register the
event in the event log. This is subject to the change occurring over the interval
period that is input. You can input the required obscuration and interval.
• Change By
• Min. Interval
ADM
DST
20. AutoLearn - The AutoLearn function will automatically set the fire thresholds. The
detector measures the ambient smoke level over the set period and will establish
the smoke and alarm thresholds accordingly. Enter the number of days, hours and
minutes over which the AutoLearn function is to apply.
ADM
21. Address Number - Assign the VESDA Zone number to the detector. ADM
22. Address Name/Location - Allocate a VESDA Zone name and location and assign
these to the respective detector.
ADM
23. Air Flow - This screen lists the options available to monitor and manage air flows.
• Flow Thresholds
• Flow Control
• Normalize
ADM
24. Flow Thresholds - Input the required High Urgent, High Minor, Low Minor and
Low Urgent air flow thresholds. Enter the time over which the air flow should be
monitored above and below the threshold levels. An appropriate urgent or minor air
flow fault will be generated once the air flow crosses the threshold and remains
above or below the threshold for the period set as “Delay”.
ADM
Scrn
No.
Description
Min.
Access
Level
Parameter Default Minimum Maximum
Fire 2/Full Scale
0.02% obs/m 0.005% obs/m 0.2% obs/m
(0.0062% obs/ft) (0.0015% obs/ft) (0.0625% obs/ft)
Min. Interval 2 seconds 2 seconds 10 seconds
Parameter Default Minimum Maximum
AutoLearn 14 days 0 days 15 days
0 hours 0 hours 23 hours
0 minutes 15 minutes 59 minutes
Parameter Default Minimum Maximum
High Urgent 130% 105% 200%
High Minor 120% 105% 200%
Low Minor 80% 25% 95%
Low Urgent 70% 25% 95%
Delay 0 seconds 0 seconds 60 seconds
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