Spectrex 20/20SI Triple IR (IR3) Flame Detector Bedienungsanleitung PDF herunterladen (Seite 11)

Spectrex Inc. - SharpEye

IR3 Flame Detector Manual – TM 20/20I, Rev. (6) August 2004

After careful investigation, three channels were selected which, when operating

jointly, provide optimal fire detection characteristics:

Channel 1: 4.2 µ - 4.6 µ

Fire - the CO

peak

Channel 2: 4.0 µ - 4.2 µ

Eliminates false alarms from high temperature sources.

Channel 3: 4.8 µ - 5.2 µ

Eliminates false alarms from flickering of background radiation.

Most IR sources, which create misleading IR alarm stimuli, including the sun,

incandescent and halogen lamps, electric arc discharges, electrical heaters, etc.,

do not possess this unique spectral signature of fire. The IR sensors of the

detector respond only to flickering of radiation signals. The signals are compared

to a predetermined threshold. Processing of the results from the three IR channels

is performed by the board microprocessor. The result is a much greater detection

distance and a highly increased ability to distinguish between fire and false alarms.

This sophisticated technology surpasses all other existing flame detection

techniques on the market today.

This unique flame analysis capability (patent pending) has been

incorporated into the Triple-IR fire detector manufactured by Spectrex, Inc.

The result is a unique flame detector, which does not produce false alarms

and provides at the same time detection over greatly increased distances.

Figure 1: IR3 Flame Detector

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Spectrex 20/20SI Triple IR (IR3) Flame Detector Bedienungsanleitung Seite 11