Reference : AE-2

Petroleum hydrocarbons analyzer AE-2 is designed for continuous automatic monitoring of content of petroleum hydrocarbons in potable, natural, and waste water. The instrument comprises a sample preparation unit and a fluorescence detector. The sample preparation unit provides metered water feed and switching of the water and reagent flows, control of temperature, mixing and mass-exchange processes. The detector (or optical cell) performs the detection of fluorescence of petroleum hydrocarbons extracted by hexane from the sample using a patented chromato membrane technology.

The analyzer is installed stationary and is controlled using a built-in microprocessor or an external PC. In a stand-alone operating mode, the selected reaction sequence can be assigned from a built-in keyboard. A firmware allows assigning any sequence of operation of system components and altering the flow rates from 0.02 to 20 ml/min. The instruments are equipped with a 4-20-mA current loop and RS485 computer interface for customized report output and remote computer control. Concentration measurement results, up to 1000 values, are stored in a built-in memory and are displayed, in milligrams per liter, on a built-in digital LC display. If concentration of petroleum hydrocarbons exceeds a threshold level, the alarm mode is activated and a relay may be triggered following a command from the analyzer.

Typical measurement cycle duration is 5 - 15 min (depending on concentration of the analyzed sample)

Features & Benefits

• Continuous on-line monitoring
• Digital data processing
• High measuring rate
• Low interference from suspended particles
• Automatic cleaning of the hydraulic system of the analyzer in case of contamination
• Programmable sample intake rate

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