CRAB - Oil Slicks Optical Detector from Lumex Instruments
  • CRAB - Oil Slicks Optical Detector from Lumex Instruments

CRAB - Oil Slicks Optical Detector



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Reference : CRAB



CRAB is an easy-to-operate, active oil slicks optical detector. The instrument detects the presence of oil using optical sensing with a vertical laser beam and measuring the differences in the reflection properties of water and oil products.

The optimized optical scheme, signal processing routine, and modulation of the light beam intensity provide a drastic decrease of the influence of the wind waves and background illumination on the measurement results.



Features & Benefits

  • Continuous remote optical sensing, no sampling
  • High sensitivity: detection of oil slicks with thickness down to 0.5 micron
  • No interference from scattered radiation
  • Low interference from ripples and waves (beam/surface angle up to ±20°)
  • Built-in data acquisition and processing
  • Waterproof housing for outdoor installation
  • Ex-proof option is available
  • Mounting at stationary points, buoys, motor boats
  • Long-term operation without maintenance



Method

Remote optical sensing of water surface with vertical laser beam.



Principle of Operation

Is based on the difference in light reflection from water and oil film surface.



Applications

    Monitoring of water surfaces (sea, harbors, lakes, rivers)

    Oil leakage detection

    Monitoring of process and waste waters



Equipment & Options

Oil slicks optical detector CRAB

Power supply unit for AC 110–240 V power mains (optional)



Technical Specifications

Detecting object : Oil slick on water surface

Min detectable oil film thickness : 0.5 μm

Mode of measurement : Continuous

Min response time : 0.1 s

Signal status outputs : “No”, “Yes” (“Alarm”)

Communication ports : RS-485, Current loop 4–20 mA

Twisted pair length :  up to 1500 m

Power supply : 100–240 V, 50–60 Hz

Power consumption : up to 3 W

Ambient conditions : Temperature: -10 to +50 ºC, Humidity: up to 100% (rain)

Distance to the water surface : 0.5–20 m

Dimensions : 120х180х120 mm

Weight : up to 1.5 kg



CRAB

Specific References

Download

Brochure CRAB

Lumex Instruments__CRAB_Oil Slicks Optical Detector pdf

Download (650.57KB)