Xtralis VESDA VFT-15 - Page 34

VESDA VFT Product Guide
VESDA by Xtralis
28 www.xtralis.com
5.3.5 SECTORS ALMS: Set Sector Day and Night Alarms
Minimum Access Code Required: Level 1
The display will now show DAY VALUES, use Parameter UP & DOWN to change to NIGHT VALUES.
Press ENTER to access the settings for all the sectors.
This function allows the user to set different values for day and night operation. The time of day when the
values change over is also configurable. Values can be set for all sectors or each sector individually.
Table 5-5: Sector Alarm Parameters and Values
Parameter Description
VFT-15 VFT-15-C
Range Default Range Default
ALL F2 All Fire 2 Alarm
Levels
0.08-20% obs/m
(0.024-6.25%obs/ft)
1.00% obs/m
(0.305%obs/ft)
2%-20% obs/m
(0.6%-6.25% obs/ft)
2.0% obs/m
(0.625% obs/ft)
ALL F1 All Fire 1 Alarm
Levels
0.06-20% obs/m
(0.018-6.25%obs/ft)
0.08% obs/m
(0.024%obs/ft)
1%-20% obs/m
(0.3%-6.25% obs/ft)
1.0% obs/m
(0.3125% obs/ft)
ALL
ACTION
All Action Alarm
Levels
0.04-20% obs/m
(0.012-6.25%obs/ft)
0.06% obs/m
(0.018%obs/ft)
0.75-1% obs/m
(0.228-6.25%obs/ft)
0.75% obs/m
(0.234%obs/ft)
ALL ALERT All Alert Alarm Levels
0.01-20% obs/m
(0.003-6.25%obs/ft)
0.04% obs/m
(0.012%obs/ft)
0.50-0.77% obs/m
(0.152-6.25%obs/ft)
0.50% obs/m
(0.15%obs/ft)
Sn FIRE 2
n = 1 to 15
Sector 'n' Fire 2 Level
0.08-20% obs/m
(0.024-6.25%obs/ft)
1.00% obs/m
(0.305%obs/ft)
2%-20% obs/m
(0.6%-6.25% obs/ft)
2.0% obs/m
(0.625% obs/ft)
Sn FIRE 1
n = 1 to 15
Sector 'n' Fire 1 Level
0.06-20% obs/m
(0.018-6.25%obs/ft)
0.08% obs/m
(0.024%obs/ft)
1%-20% obs/m
(0.3%-6.25% obs/ft)
1.00% obs/m
(0.305%obs/ft)
Sn ACTION
n = 1 to 15
Sector 'n' Action
Level
0.04-20% obs/m
(0.012-6.25%obs/ft)
0.06% obs/m
(0.018%obs/ft)
0.75-1% obs/m
(0.228%-6.25% obs/ft)
0.75% obs/m
(0.234%obs/ft)
Sn ALERT
n = 1 to 15
Sector 'n' Alert Level
0.01-20% obs/m
(0.003-6.25%obs/ft)
0.04% obs/m
(0.012%obs/ft)
0.50%-77% obs/m
(0.152%-6.25% obs/ft)
0.50% obs/m
(0.15%obs/ft)
TRACE Trace Level
0.01-20% obs/m
(0.003-6.25%obs/ft)
0.03% obs/m
(0.009%obs/ft)
0.01%-20% obs/m
(0.0003%-6.25% obs/ft)
0.03% obs/m
(0.009%obs/ft)
FINAL SECTOR AS ABOVE
TRCDEL Trace Delay 0 to 60 secs 3 secs 0 to 60 secs 3 secs
By default, NIGHT VALUES are set to the same as DAY VALUES. DELAYS are automatically the same for
both DAY and NIGHT.
ALL ALERT, ALL ACTION, ALL F1, ALL F2
These are the obscuration levels corresponding to the respective alarm events. Changes made should
preserve their progressive relationship. The values apply equally to OVERALL sampling and to TRACE
sampling.
TRACE
The obscuration level (in OVERALL sampling) which will cause the detector to begin Sector scanning.