Spectrex Quasar 900 Open-Path Gas Detection System Manual de usuario descargar pdf (Pagina 23)

TM 888200 Rev (I), January 2014

Description 11

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 front window of the Detector is heated to improve performance in icing,

condensation and snow conditions.

There is one detector type that is suitable for all Quasar models 901, 902,

903 and 904 – P/N QR-X-11X.

Front Window Section

Earth Terminal

Label

Front Window

Main Housing

Handheld Fast Connection

Mounting Plate

Cable Inlet

Junction Box

Indication Led

Back Cover

Figure 3: Detector

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Spectrex Quasar 900 Open-Path Gas Detection System Manual de usuario Pagina 23