2 detector unit, Detector unit, Table 4: detector types – Spectrex Xenon 700 SIL Open-Path Gas Detection System User Manual
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SafEye
TM
Xenon 700S SIL Gas Detector
12
Description
2.6.2 Detector Unit
The Detector receives the transmitted pulsed radiation signals from the
Flash Source. The signals are then amplified and fed into an analog to digital
signal converter to be processed by the internal microprocessor. When the
signals drop below a prescribed level, the internal microprocessor will
compensate for them. This will allow the signal to be maintained even in
severe weather conditions. The data is sent to the output interface section.
The signals can be sent to a standard control panel or to a central computer.
The front window of the Detector is heated to improve performance in icing,
condensation and snow conditions.
Table 4 describes the detector types and their ranges.
Table 4: Detector Types
Detector Type
Range
(in ft.)
Range
(in meters)
Short range
13 - 65 ft.
4 – 20 m
Mid-range
50 - 230 ft.
15 – 70 m
Long range
165 - 459 ft.
50 – 140 m