Xtralis VESDA LCD Programmer Module Product Manual page 31

Xtralis VESDA
®
Scrn
Description
No.
59. AutoLearn - The AutoLearn function allows setting the thresholds automatically.
The detector measures the ambient smoke levels 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
60. Address Number - Assign the VESDA Zone number to the detector.
61. Address Name/Location - Allocate a VESDA Zone name and location and assign
these to the respective detector.
62. Air Flow - This screen lists the options available to monitor and manage air flows.
It has 3 sub-menus for:
• Flow Thresholds
• Flow Control
• Normalize
63. 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
64. Flow Control - The Flow Control Screen permits changing the Aspirator speed for
VLP and VLS. Enter the Pipes in Use by placing a
Default: 3000rpm, Min. 3000rpm, Max 4200rpm
65. Normalize - The Normalize screen displays the current air flow rates and the
current raw flow for each pipe in use. To normalize the air flow highlight Start and
↵
press .
Note: Normalizing air flow takes approximately 11 minutes. Ensure that the pipes
in use have been
www.xtralis.com
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
(screen 64) before commencing normalization.
Xtralis VESDA LCD Programmer Product Guide
Maximum
15 days
23 hours
59 minutes
Maximum
200%
200%
95%
95%
60 seconds
against the respective pipe.
Min.
Access
Level
ADM
ADM
ADM
ADM
ADM
ADM
ADM
25