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QUASAR 900 Series Open Path Gas Detector for Hydrocarbons
Brand: GDS CorporationThe Spectrex SafEye Quasar 900 is an open path detection system which provides continuous monitoring for combustible hydrocarbon gases.
It employs “spectral fingerprint” analysis of the atmosphere using the Differential Optical Absorption Spectroscopy (DOAS) technique.
The Quasar 900 consists of a Xenon Flash infrared transmitter and infrared receiver, separated over a line of sight room 23 ft (7m) up to 660 ft (200m) in extremely harsh environments where dust, fog, rain, snow or vibration can cause a high reduction of signal.
The Quasar 900 transmitter and receiver are both housed in a rugged, stainless steel, ATEX and IECEx approved enclosure.
The main enclosure is EExd flameproof with an integral, segregated, EExe increased safety terminal section.
Features- Detects gaseous hydrocarbons such as methane, propane and ethylene
- Detection range from 7 meters to 200 meters (23 to 600 feet)
- Built-in event recorder captures last 100 events and alarms
- 3 year warranty; 10 years on strobe source
- Suitable for use in SIL-2 safety systems per IEC61508
- Outputs include 4-20 mA, MODBUS, HART
- Over 100,000 hours MTBF
- Heated optics for reliable use in harsh environments
- Totally immune to false alarms from lightning, welding, sunlight
- 316 Stainless Steel housing
- Performance tested to EN60079-29-4
Specifications
Brand
Detected Gas
- C1-C8 selective gases
Response Time
- < 3 seconds (T90 < 10 seconds)
Immunity to False Alarm
- Not influenced by solar radiation, hydrocarbon flames, and other external infrared radiation sources
Sensitivity Range
- 0-5 LEL.m methane and propane
- 0-8 LEL.m ethylene
Displacement/Misalignment Tolerance
- ±0.5 degrees
Drift
- ±7.5 percent of the reading or ±4 percent 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 percent non-condensing (withstands up to 100 percent relative humidity for short periods)
Heated Optics
- To eliminate condensation and icing on the window
Warranty
- Safety System - Three years
- Offshore Platforms and FPSOs
- Petrochemical Plants
- Chemical
- Gas Filling and Distribution Terminals
- Gas Transport and Pipelines
- Large Storage Areas and Buildings
- Perimeter Monitoring