Spectrex Quasar 900 Open-Path Gas Detection System - Manual (Page 13)

Product Overview 1
1 Scope
➣ In this chapter…
Product Overview page 1
1.1 Product Overview
The SafEye Quasar 900 IR Open-Path Gas Detector employs an advanced
Xenon Flash Source and integrated electronics package, both housed in
improved, Stainless steel housings to provide high quality and performance,
fast response, line of sight gas monitoring. This high quality is backed by 3
years warranty for the complete SafEye system and 10 years for the Xenon
Flash source bulb.
Quasar 900 detects ambient combustible gases over a path length of up to
660ft. (200 m), even in harsh environments where dust, fog, rain, snow or
vibration can cause a high reduction of signal. The SafEye Quasar 900 can
maintain operation in up to 90% signal obscuration and ±0.5 degree of
misalignment.
Quasar 900 is manufactured only in stainless steel with heated optical
window to improve performance in icing, snow, and condensation
conditions. The programmable functions are available through a RS 485 or
HART port used with Host software supplied by Spectrex and a standard PC
or an I.S handheld unit.
The Quasar Source and Detector unit enclosures are ATEX and IECEx
approved Exd flameproof with an integral segregated rear, Exe terminal
compartment which avoids exposure of the sensors and electronics to
surrounding environment. The Detector also has a plug interface for
connection to handheld PC or HART handheld, which is intrinsically safe.
Hence the combined approval - Ex d e ib [ib Gb] IIB+H2 T4 Gb, Ex tb IIIC
T135°C Db IP66.
This manual consists of a full description of the Detector and its features. It
contains instructions on the installation, operation and maintenance.
 To use the WinHost software to change the required functions and for
maintenance, refer to Manual TM 888050 for instructions
 To use the I.S Handheld Unit to change the required functions and for
maintenance, refer to Manual TM 799060 for instructions.
 To use HART Protocol to change the required functions and for
maintenance refer to Manual TM 888030. The HART can be connected on
the 0-20mA line or through the IS port for setting