Product Overview
TM40/40U Rev. (Af), February 2019
25
2.5.3
False Alarm Prevention
To prevent false alarms, the detector will not alarm or react to the radiation
sources specified in Table 4.
Table 4: Immunity to False Alarm Sources
Radiation Source
Immunity
Distance ft/m
Indirect or reflected sunlight
IAD
Vehicle headlights (low beam) conforming to
MS53023-1
IAD
Incandescent frosted glass light, 300W
IAD
Fluorescent light with white enamel reflector, standard
office or shop, 70W (or 2 35W)
IAD
Electric arc [12mm /
15
/
32
”
gap at 4000V alternating
current, 60Hz]
IAD
Ambient light extremes (darkness to bright light with
snow, water, rain, desert glare, and fog)
IAD
Bright colored clothing, including red and safety
orange
IAD
Blue-green dome light conforming to M251073-1
IAD
Flashlight (MX 991/U)
IAD
Radiation heater, 3000W
IAD
Radiation heater, 1000W with fan
IAD
Lit cigar
5/1.5
Lit cigarette
5/1.5
Match, wood, stick including flare up
16.5/5
Notes:
•
IAD = Immune at Any Distance
•
All sources are chopped from 0 to 20Hz