29 95-87682.1
RESPONSE CHARACTERISTICS IN THE PRESENCE OF FALSE ALARM SOURCES
Very High Sensitivity
False Alarm Source
Distance
to source
feet (m)
Fire source and size/
ow rate
Distance to
fire feet (m)
Average
Response time
(seconds)**
Sunlight, direct, unmodulated*
—
Hydrogen @ 100 SLPM 125 (38.1)
2.6
Sunlight, direct, modulated*
—
Hydrogen @ 25 SLPM 10 (3.0)
7.0
Sunlight, reflected, unmodulated*
—
Hydrogen @ 100 SLPM 125 (38.1)
2.6
Sunlight, reflected, modulated*
— Hydrogen @ 100 SLPM 60 (18.2)
2.1
Arc welding, unmodulated
30 (9.1) Hydrogen @ 100 SLPM 125 (38.1)
3.8
Arc welding, modulated 40 (12.2) Hydrogen @ 100 SLPM
125 (38.1) 4.6
70 W sodium vapor lamp, unmodulated 10 (3.0)
Hydrogen @ 100
SLPM
125 (38.1) 2.4
70 W sodium vapor lamp, modulated
10 (3.0)
Hydrogen @ 100
SLPM
125 (38.1) 2.3
250 W mercury vapor lamp, unmodulated 10 (3.0)
Hydrogen @ 100
SLPM
125 (38.1) 2.4
250 W mercury vapor lamp, modulated 10 (3.0)
Hydrogen @ 100
SLPM 125 (38.1)
2.1
300 W clear incandescent lamp, unmodulated 10 (3.0)
Hydrogen @ 100
SLPM
125 (38.1) 1.4
300 W clear incandescent lamp, modulated
10 (3.0)
Hydrogen @ 100
SLPM 125 (38.1)
2.3
500 W shielded quartz halogen lamp, unmodulated 15 (4.6)
Hydrogen @ 100
SLPM
125 (38.1) 1.7
500 W shielded quartz halogen lamp, modulated 15 (4.6)
Hydrogen @ 100
SLPM 125 (38.1)
4.7
1500 W electric quartz heater, unmodulated
15 (4.6)
Hydrogen @ 100
SLPM
125 (38.1) 2.7
1500 W electric quartz heater, modulated 15 (4.6)
Hydrogen @ 100
SLPM
125 (38.1) 3.1
Two 34 W fluorescent lamps, unmodulated 5 (1.5)
Hydrogen @ 100
SLPM
125 (38.1) 2.7
Two 34 W fluorescent lamps, modulated 5 (1.5)
Hydrogen @ 100
SLPM
125 (38.1) 2.2
4000K, 8000 Lumen LED Lamp, unmodulated 5 (1.5)
Hydrogen @ 100
SLPM
125 (38.1) 1.9
4000K, 8000 Lumen LED Lamp, modulated 5 (1.5)
Hydrogen @ 100
SLPM
125 (38.1) 2.2
* Outdoor test conditions.
** Add 2 seconds for EQP model.
High Sensitivity
False Alarm Source
Distance to
source feet (m)
Fire source and size/
ow rate
Distance to
re feet (m)
Average
Response time
(seconds)**
Sunlight, direct, unmodulated* —
Hydrogen @ 100 SLPM 110 (33.5)
1.8
Sunlight, direct, modulated* —
Hydrogen @ 50 SLPM 10 (3.0)
3.2
Sunlight, reflected, unmodulated* —
Hydrogen @ 100 SLPM 110 (33.5)
2.8
Sunlight, reflected, modulated*
— Hydrogen @ 100 SLPM 60 (18.3)
3.2
Arc welding, unmodulated 25 (7.6) Hydrogen @ 100 SLPM 110 (33.5)
8.5
Arc welding, modulated 35 (10.7) Hydrogen @ 100 SLPM
110 (33.5) 5.8
70 W sodium vapor lamp, unmodulated 8 (2.4)
Hydrogen @ 100
SLPM
110 (33.5) 2.2
70 W sodium vapor lamp, modulated 8 (2.4)
Hydrogen @ 100
SLPM
110 (33.5) 2.1
250 W mercury vapor lamp, unmodulated 8 (2.4)
Hydrogen @ 100
SLPM
110 (33.5) 2.1
250 W mercury vapor lamp, modulated
8 (2.4)
Hydrogen @ 100
SLPM 110 (33.5)
2.1
300 W clear incandescent lamp, unmodulated 8 (2.4)
Hydrogen @ 100
SLPM
110 (33.5) 2.6
300 W clear incandescent lamp, modulated 8 (2.4)
Hydrogen @ 100
SLPM 110 (33.5)
2.1
500 W shielded quartz halogen lamp, unmodulated 12 (3.7)
Hydrogen @ 100
SLPM
110 (33.5) 2.4
500 W shielded quartz halogen lamp, modulated 12 (3.7)
Hydrogen @ 100
SLPM 110 (33.5)
4.7
1500 W electric quartz heater, unmodulated 14 (4.3)
Hydrogen @ 100
SLPM
110 (33.5) 2.2
1500 W electric quartz heater, modulated 14 (4.3)
Hydrogen @ 100
SLPM 110 (33.5)
2.5
Two 34 W fluorescent lamps, unmodulated 4 (1.2)
Hydrogen @ 100
SLPM
110 (33.5) 2.7
Two 34 W fluorescent lamps, modulated 4 (1.2)
Hydrogen @ 100
SLPM
110 (33.5) 2.0
4000K, 8000 Lumen LED Lamp, unmodulated 4 (1.2)
Hydrogen @ 100
SLPM
110 (33.5) 2.0
4000K, 8000 Lumen LED Lamp, modulated 4 (1.2)
Hydrogen @ 100
SLPM
110 (33.5) 1.4
* Outdoor test conditions.
** Add 2 seconds for EQP model.