30 95-87682.1
Medium 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 70 (21.3)
2.8
Sunlight, direct, modulated* —
Hydrogen @ 100 SLPM 10 (3.0)
2.6
Sunlight, reflected, unmodulated* —
Hydrogen @ 100 SLPM 70 (21.3)
1.9
Sunlight, reflected, modulated*
— Hydrogen @ 100 SLPM 30 (9.1)
1.6
Arc welding, unmodulated 20 (6.1) Hydrogen @ 100 SLPM 70 (21.3)
5.0
Arc welding, modulated 25 (7.6) Hydrogen @ 100 SLPM
70 (21.3) 7.2
70 W sodium vapor lamp, unmodulated 5 (1.5)
Hydrogen @ 100
SLPM
70 (21.3) 2.2
70 W sodium vapor lamp, modulated 5 (1.5)
Hydrogen @ 100
SLPM
70 (21.3) 2.6
250 W mercury vapor lamp, unmodulated 5 (1.5)
Hydrogen @ 100
SLPM
70 (21.3) 2.3
250 W mercury vapor lamp, modulated 5 (1.5)
Hydrogen @ 100
SLPM
70 (21.3) 3.6
300 W clear incandescent lamp, unmodulated 5 (1.5)
Hydrogen @ 100
SLPM
70 (21.3) 1.9
300 W clear incandescent lamp, modulated 5 (1.5)
Hydrogen @ 100
SLPM
70 (21.3) 2.1
500 W shielded quartz halogen lamp, unmodulated 10 (3.0)
Hydrogen @ 100
SLPM
70 (21.3) 2.0
500 W shielded quartz halogen lamp, modulated 10 (3.0)
Hydrogen @ 100
SLPM
70 (21.3) 3.3
1500 W electric quartz heater, unmodulated 10 (3.0)
Hydrogen @ 100
SLPM
70 (21.3) 2.4
1500 W electric quartz heater, modulated 10 (3.0)
Hydrogen @ 100
SLPM
70 (21.3) 4.9
Two 34 W fluorescent lamps, unmodulated 3 (0.9)
Hydrogen @ 100
SLPM
70 (21.3) 2.3
Two 34 W fluorescent lamps, modulated 3 (0.9)
Hydrogen @ 100
SLPM
70 (21.3) 2.5
4000K, 8000 Lumen LED Lamp, unmodulated 3 (0.9)
Hydrogen @ 100
SLPM
70 (21.3) 2.5
4000K, 8000 Lumen LED Lamp, modulated 3 (0.9)
Hydrogen @ 100
SLPM
70 (21.3) 1.7
* Outdoor test conditions.
** Add 2 seconds for EQP model.
Low 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
35 (10.7) 5.1
Sunlight, direct, modulated* —
Hydrogen @ 200 SLPM 10 (3.0)
7.1
Sunlight, reflected, unmodulated* —
Hydrogen @ 100 SLPM
35 (10.7) 5.2
Sunlight, reflected, modulated*
— Hydrogen @ 100 SLPM 15 (4.6)
4.8
Arc welding, unmodulated 15 (4.6) Hydrogen @ 100 SLPM
35 (10.7) 6.9
Arc welding, modulated 15 (4.6) Hydrogen @ 100 SLPM
35 (10.7) 8.9
70 W sodium vapor lamp, unmodulated 3 (0.9)
Hydrogen @ 100
SLPM
35 (10.7) 5.0
70 W sodium vapor lamp, modulated 3 (0.9)
Hydrogen @ 100
SLPM
35 (10.7) 4.0
250 W mercury vapor lamp, unmodulated
3 (0.9)
Hydrogen @ 100
SLPM
35 (10.7) 4.8
250 W mercury vapor lamp, modulated 3 (0.9)
Hydrogen @ 100
SLPM
35 (10.7) 6.6
300 W clear incandescent lamp, unmodulated 3 (0.9)
Hydrogen @ 100
SLPM
35 (10.7) 4.9
300 W clear incandescent lamp, modulated
3 (0.9)
Hydrogen @ 100
SLPM
35 (10.7) 4.7
500 W shielded quartz halogen lamp, unmodulated 6 (1.8)
Hydrogen @ 100
SLPM
35 (10.7) 5.2
500 W shielded quartz halogen lamp, modulated 6 (1.8)
Hydrogen @ 100
SLPM
35 (10.7) 5.9
1500 W electric quartz heater, unmodulated
8 (2.4)
Hydrogen @ 100
SLPM
35 (10.7) 4.8
1500 W electric quartz heater, modulated 8 (2.4)
Hydrogen @ 100
SLPM
35 (10.7) 9.3
Two 34 W fluorescent lamps, unmodulated 2 (0.6)
Hydrogen @ 100
SLPM
35 (10.7) 4.7
Two 34 W fluorescent lamps, modulated 2 (0.6)
Hydrogen @ 100
SLPM
35 (10.7) 4.3
4000K, 8000 Lumen LED Lamp, unmodulated
2 (0.6)
Hydrogen @ 100
SLPM
35 (10.7) 4.7
4000K, 8000 Lumen LED Lamp, modulated 2 (0.6)
Hydrogen @ 100
SLPM
35 (10.7) 4.9
* Outdoor test conditions.
** Add 2 seconds for EQP model.