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Crowcon SafEye Quasar 900 Series Open Path IR Gas Detector, (ATEX, M25 or FM, 3/4" NPT) - Choice of Model

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C03640/7
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Crowcon SafEye Quasar 900 Series Open Path IR Gas Detector,
Description

The SafEye Quasar 900 Series are an open path detection system. They employ a "spectral fingerprint" analysis of the atmosphere using the Differential Optical Absorption Spectroscopy (DOAS) technique. With a range from 7m up to 200m, the Quasar 900 detects gas hazards in extremely harsh environments where dust, fog, rain, snow, or vibration can cause a high reduction of signal.

Using superior "Xenon Flash" technology the SafEye range is immune to false alarms caused by partial blockage and extreme weather conditions (fog, rain, or snow) and direct or reflected sunlight, flame, or other black body radiation sources.

Specially designed Duct Open Path Detectors designed and widely used to monitor the ingress of hazardous flammable gas concentrations into air intakes of turbine engines and HVAC air ducts

Key Features

  • The main stainless steel enclosure is Exd flameproof with an integral, segregated, Exe terminal section
  • An I.S. communicator can be connected for diagnostic/maintenance purposes
  • Includes heated windows to eliminate condensation and icing
  • HART capability for digital communication
  • Designed to meet SIL2 per IEC61508 and FM performance approved per FM6325 and tested per EN60079-29-4
  • Duct-mounted SafEye flammable gas detectors

Product Range

  • Crowcon C03640 SafEye Quasar 901 Open Path IR Gas Detector, ATEX, M25 Cable Entry, 7-20m Range. Spectrex Ref: QT-C111+QR-C111
  • Crowcon C03641 SafEye Quasar 902 Open Path IR Gas Detector, ATEX, M25 Cable Entry, 15-40m Range. Spectrex Ref: QT-C211+QR-C111
  • Crowcon C03642 SafEye Quasar 903 Open Path IR Gas Detector, ATEX, M25 Cable Entry, 35-100m Range. Spectrex Ref: QT-C311+QR-C111
  • Crowcon C03643 SafEye Quasar 904 Open Path IR Gas Detector, ATEX, M25 Cable Entry, 80-200m Range. Spectrex Ref: QT-C411+QR-C111
  • Crowcon C03644 SafEye Quasar 901 Open Path IR Gas detector, FM, 3/4" NPT Cable Entry, 7-20m Range. Spectrex Ref: QT-F112+QR-F112
  • Crowcon C03645 SafEye Quasar 902 Open Path IR Gas Detector, FM, 3/4" NPT Cable Entry, 15-40m Range. Spectrex Ref: QT-F212+QR-F112
  • Crowcon C03646 SafEye Quasar 903 Open Path IR Gas Detector, FM, 3/4" NPT Cable Entry, 35-100m Range. Spectrex Ref: QT-F312+QR-F112
  • Crowcon C03647 SafEye Quasar 904 Open Path IR Gas Detector, FM, 3/4" NPT Cable Entry, 80-200m Range. Spectrex Ref: QT-F412+QR-F112
Tech Specs
SafEye Quasar 900 Series
Model 901 902 903 904
GENERAL SPECIFICATIONS
Detection Range 7-20m 15-40m 35-100m 80-200m
Detected Gas C1-C8
Response Time 3 sec.
Immunity to False Alarm Not influenced by solar radiation, hydrocarbon flames, and other external IR radiation sources
Sensitivity Range 0-5 LEL.m methane and propane
0-8 LEL.m ethylene
Spectral Response 2.0 - 3.0µm
Displacement/Misalignment Tolerance ±0.5°
Drift ±7.5% of the reading or ±4% of the full scale (whichever is greater)
Minimum Detectable Level 0.15 LEL.m
Temperature Range -67°F (-55°C) to 149°F (65°C)
Humidity Up to 95% non-condensing (withstands up to 100% RH for short periods)
Heated Optics To eliminate condensation and icing on the window
ELECTRICAL SPECIFICATIONS
Power Supply 24VDC nominal (18-32 VDC)
Power Consumption Detector: 250mA
(peak includes heated optics)
Detector: 250mA (300mA Peak)
Source: 250mA (300mA Peak)
Warm Up Time 30 sec for transmitter and receiver
Electrical Connection (specify) 2 x 3/4" - 14NPT conduits or 2 x M25 x 1.5mm ISO
Electrical Input Protection per MIL-STD-1275B
Electromagnetic Compatibility EMI/RFI protected per EN50270
OUTPUTS - INTERFACES
0-20mA Current Output
Sink (source option) configuration - maximum load of 500 ohms at 18-32 VDC
Gas reading 4-20mA Obscuration/beam block 2mA
Normal, zero reading 4mA Zero calibration mode 1mA
Maintenance call 3mA Fault 0mA
Misalignment 2.5mA
RS-485 Interface - Modbus Compatible The RS-485 input/output provides complete data information to a PC and receives control commands from the PC or handheld unit
HART HART communications on 0-20mA analog current (FSK) - used for maintenance and asset management
Visual Status Indicator 3 color LED: Green - Power on, Yellow - Fault, Red - Alarm
MECHANICAL SPECIFICATIONS
Hazardous Area Approval
ATEX/IECEx Approved per
Ex d e ib [ib Gb] IIB + H2 T4 Gb
Ex tb IIIC T135°C Db
The detector or source units have a combination of approvals. Each is a single enclosure (Exd) with integral,
segregated rear terminal section (Exe) and intrinsically safe (Exia) data port for external in-situ connection to the Hand-Held Diagnostic unit.
FM/FMC Approved per
Class I Div 1 Groups B, C, and D
Class II, III Div 1 Groups E, F, and G
Inmetro Approved per
Ex d e ib [ib Gb] IIB+H2 T4 Gb
Performance Approved per FM6325 and tested by FM per EN60079-29-4
Reliability SIL2 per IEC61508 (TUV)
Enclosure The source and detector housings are stainless steel 316L with an electro-polish finish.
The circuit boards are conformally coated and protected from mechanical vibrations.
The tilt mount is also stainless steel 316L.
Dimensions Detector/Source 10.5 x 5.1 x 5.1 inch (267 x 130 x 130mm)
Tilt Mount 4.7 x 4.7 x 5.5 inch (120 x 120 x 158mm)
Weight Detector/Source 11lb (5kg)
Tilt Mount 4.2lb (1.9kg)
Water and Dust Tight IP66 and IP68
NEMA 250 6P
Environmental Meets MIL-STD-810C for Humidity, Salt and Fog, Vibration, Mechanical Shock, High and Low Temperature
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SKU C03640/7
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