Honeywell® FS24XPlus™ | User Manual
44
WARNING: The following conditions may have a detrimental effect on detector performance or
increase the change of nuisance alarms and therefore should be avoided:
1. Locations where the detector is aimed directly at the sun.
2. Situations where the detector is continuously subjected to modulated sunlight.
False Alarm Source
FS24X Plus™ 3IR
Product
Sensitivity
Alarm
Response
Time
False
Alarm
Source
Immunity
Distance
False Alarm Stimuli
False
Alarm
Source
Distance
FireSize and Fuel
Fire
Distance
Equivalent
Fire
Distance for
12 in X 12 in
(0.3m X
0.3m)
Direct Sunlight
(Modulated)
>= 10 ft
(3.1m)
>= 9 ft
(2.8m)
12 in X 12 in (0.3m X
0.3m) n-Heptane
36 ft
(10m)
36 ft (10m)
Very High
5 Seconds
(Typical) 10
Seconds
(Maximum)
Direct Sunlight (Un-
Modulated)
N/A N/A
65 ft
(19m)
65 ft (19m)
Reflected Sunlight
(Modulated)
>= 10 ft
(3.1m)
>= 25 ft
(7.7m)
12 in X 12 in (0.3m X
0.3m) n-Heptane
18 ft (5m) 18 ft (5m)
Reflected Sunlight (Un-
Modulated)
>= 10 ft
(3.1m)
>= 10 ft
(3.1m)
70 ft
(21m)
70 ft (21m)
Electric Arc welding (7014)
(Modulated)
>= 5 ft
(1.6m)
>= 15 ft
(4.6m)
12 in X 12 in (0.3m X
0.3m) n-Heptane
30 ft (9m) 30 ft (9m)
Electric Arc welding (7014)
(Un-Modulated
Electric Heater, 1500W
(Modulated)
>= 5 ft
(1.6m)
>= 15 ft
(4.6m)
3 in X 3 in (76mm X
76mm) n- Heptane
20 ft (6m) 80 ft (24m)
Electric Heater, 1500W
(Un-Modulated)
>= 8 ft
(2.5m)
>= 10 ft
(3.1m)
Flourescent lamps, Two
34W (Modulated)
>= 5 ft
(1.6m)
>= 10 ft
(3.1m)
3 in X 3 in (76mm X
76mm) n- Heptane
20 ft (6m) 80 ft (24m)
Flourescent lamps, Two
34W (Un-Modulated)
Halogen lamp, Quartz (un-
shielded), 500W
(Modulated)
>= 5 ft
(1.6m)
>= 12 ft
(3.7m)
3 in X 3 in (76mm X
76mm) n- Heptane
20 ft (6m) 80 ft (24m)
Halogen lamp, Quartz (un-
shielded, 500W (Un-
Modulated)
>= 8 ft
(2.5m)
Halogen lamp, Quartz
(shielded), 500W
(Modulated)
>= 5 ft
(1.6m)
>= 12 ft
(3.7m)
3 in X 3 in (76mm X
76mm) n- Heptane
20 ft (6m) 80 ft (24m)
Halogen lamp, Quartz
(shielded), 500W (Un-
Modulated)
>= 8 ft
(2.5m)
Incandescent Lamp, 300W
(Modulated)
>= 5 ft
(1.6m)
>= 10 ft
(3.1m)
3 in X 3 in (76mm X
76mm) n- Heptane
20 ft (6m) 80 ft (24m)
Incandescent Lamp, 300W
(Un-Modulated)
>= 5 ft
(1.6m)
Sodium Vapor Lamp, 70W
(Modulated)
>= 5 ft
(1.6m)
>= 7 ft
(2.2m)
3 in X 3 in (76mm X
76mm) n- Heptane
20 ft (6m) 80 ft (24m)
Sodium Vapor Lamp, 70W
(Un-Modulated)
>= 5 ft
(1.6m)