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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
SafEye Quasar 900 Series | ||||||||||||||
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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 |
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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) |
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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 |
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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 |
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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. |
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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) |
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Weight | Detector/Source 11lb (5kg) Tilt Mount 4.2lb (1.9kg) |
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Water and Dust Tight | IP66 and IP68 NEMA 250 6P |
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Environmental | Meets MIL-STD-810C for Humidity, Salt and Fog, Vibration, Mechanical Shock, High and Low Temperature |
SKU | C03640/7 |
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