User Manual

SharpEye
TM
IR3 Flame Detector User Guide
10 False Alarms Prevention
3.3 False Alarms Prevention
The detector does not provide an alarm or a warning signal as a reaction to
the radiation sources specified in Table 3.
Table 3: Immunity to False Alarm Sources
Radiation Source
Immunity Distance
ft.(m)
Sunlight
IAD
Indirect or reflected sunlight
IAD
Incandescent frosted glass light, 100 W
IAD
Incandescent clear glass light, rough service, 100 W
IAD
Fluorescent light with white enamel reflector,
standard office or shop, 40 W (or two 20 W)
IAD
Electric arc [12mm (15/32 in) gap at 4000 V
alternating current, 60 Hz]
IAD
Arc welding [4 mm (5/32 in) rod; 240 A]
See Table 4
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
Electronic flash (180 watt-seconds minimum
output)
IAD
Movie light, 625 W quartz DWY lamp (Sylvania
S.G.-55 or equivalent)
6.5 (2)
Flashlight (MX 991/U)
IAD
Radiation heater, 1500 W
IAD
Radiation heater, 1000 W with fan
IAD
Quartz lamp (1000 W)
10 (3)
Mercury vapor lamp
IAD
Grinding metal
IAD
Lit cigar
1 (0.3)
Lit cigarette
1 (0.3)
Match, wood, stick including flare up
10 (3)
Grinding metal
IAD
Notes:
 IAD = Immune at Any Distance.
 All sources are chopped from 0 to 20Hz.