Xtralis
VESDA
®
Xtralis VESDA LCD Programmer Product Guide
www.xtralis.com
31
87.
Smoke Thresholds
- This screen lists the available options for setting smoke
thresholds.
•
Fire
•
Pre-Alarm
•
Alert
•
Overlay Alert
ADM
88.
Alarm Delays
- In this screen insert the required time delay (in seconds) before an
alarm is generated at Fire, Pre-Alarm, Alert, Overlay Alert levels. This screen also
offers the option of simultaneous or cumulative delay times before the alarm is
generated. The instant fire alarm option can be enabled or disabled in this screen.
ADM
89.
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
Scrn
No.
Description
Min.
Access
Level
Parameter
Default
Minimum
Maximum
Fire 1/Fire
0.200% obs/m
0.015% obs/m
2.000% obs/m
(0.0625% obs/ft)
(0.0046% obs/ft)
(0.6250% obs/ft)
Action/Pre/
Alarm
0.140% obs/m
0.010% obs/m
1.995% obs/m
(0.044% obs/ft)
(0.0031 obs/ft)
(0.6234% obs/ft
Alert
0.080% obs/m
0.005% obs/m
1.990% obs/m
(0.025% obs/ft)
(0.0015% obs/ft)
(0.6218% obs/ft)
Parameter
Default
Minimum
Maximum
Fire 1/Fire
10 seconds
0 seconds
60 seconds
Action/Pre/Alarm
10 seconds
0 seconds
60 seconds
Alert
10 seconds
0 seconds
60 seconds
Delay Times
Simultaneous
Simultaneous
Cumulative
Instantaneous Fire
Disabled
Enabled
Disabled
Parameter
Default
Minimum
Maximum
Change By
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
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