Xtralis VESDA LCD Programmer Module Product Manual page 22

Xtralis VESDA LCD Programmer Product Guide
Scrn
Description
No.
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
Parameter
Fire 2/Full Scale
Min. Interval
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.
Parameter
AutoLearn
21. Address Number - Assign the VESDA Zone number to the detector.
22. Address Name/Location - Allocate a VESDA Zone name and location and assign
these to the respective detector.
23. Air Flow - This screen lists the options available to monitor and manage air flows.
• Flow Thresholds
• Flow Control
• Normalize
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".
Parameter
High Urgent
High Minor
Low Minor
Low Urgent
Delay
16
Default Minimum
0.02% obs/m 0.005% obs/m
(0.0062% obs/ft) (0.0015% obs/ft)
2 seconds 2 seconds
Default Minimum
14 days 0 days
0 hours 0 hours
0 minutes 15 minutes
Default Minimum
130% 105%
120% 105%
80% 25%
70% 25%
0 seconds 0 seconds
Xtralis VESDA
Maximum
0.2% obs/m
(0.0625% obs/ft)
10 seconds
Maximum
15 days
23 hours
59 minutes
Maximum
200%
200%
95%
95%
60 seconds
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Access
Level
ADM
DST
ADM
ADM
ADM
ADM
ADM