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Aquaread

Home / Our Brands / NKE Group / Aquaread / Optical Electrodes / Refined Oil Electrode

Refined Oil Electrode

The Aquaread Optical Refined Oil Electrode is a highly sensitive digital sensor engineered to detect and measure refined petroleum products and fuel contamination in situ. Operating on the principle of ultraviolet (UV) fluorometry, the sensor projects a targeted UV excitation light beam at 285 nm directly into the water column. Aromatic hydrocarbons present in refined oils absorb this high-energy light and instantaneously fluoresce, emitting a shifted signal that the sensor isolates and measures through a tightly filtered 350 nm to 440 nm window to determine parts-per-million concentration levels.

What this electrode offers over universal optical arrays is its specialised wavelength tuning, which provides extreme sensitivity to processed oils rather than crude petroleum or natural organic matter. Equipped with ultra-hard, optically polished sapphire windows instead of standard resin or glass lenses, the sensor eliminates calibration drift caused by grit abrasions during deployment in turbulent industrial effluents. Biofouling and sediment mitigation are tailored as system choices; while entry-level configurations on AP-LITE, AP-2000, and AP-5000 probes operate as static arrays for manual grab sampling, the electrode natively aligns with the motorised central wipers standard on the heavy-duty AP-6000 and AP-7000 platforms for continuous, unattended field logging.

Key Features

  • Hydrocarbon-Specific 285nm Tuning: Targets the exact ultraviolet excitation peak of refined oil aromatics, dramatically reducing false positives from natural background organic materials or turbidity.
  • Dual Auto-Ranging Precision: Automatically toggles between a sub-decimal 0.0 to 99.99mµg/L scale and a broad 100 to 10,000mµg/L range to handle subtle background leaks alongside heavy industrial run-off.
  • Abrasive-Resistant Sapphire Optics: Premium sapphire windows protect internal optical paths from micro-scratches during high-sediment river tracking, harbor monitoring, or industrial pipe profiling.
  • Flexible Anti-Fouling Integration: Functions as a static sensor within entry-level assemblies or pairs directly with the automated motorized mechanical cleaning wipers built into the AP-6000 and AP-7000 probe bodies.
  • Universal Auxiliary Adaptability: Threads directly into the standard auxiliary optical ports of all modular Aquaprobes, removing the need for single-parameter logger electronics or standalone field gear.

Applications

  • Industrial Effluent Monitoring: Tracking stormwater discharges and wastewater outflows from oil refineries, airports, and heavy manufacturing sites.
  • Marine Infrastructure Surveillance: Continuous deployment in commercial harbours, ports, and marinas to catch fuel spills or bilge water dumping early.
  • Drinking Water Intake Protection: Providing an early warning system at surface water treatment intakes to isolate the facility from riverbourne fuel spills.
  • Groundwater Remediation Tracking: Long-term charting of fuel plumes, underground storage tank leaks, and airport runoff zones during environmental clean-ups.
LITE-REFOIL

LITE-REFOIL

AP-LITE Refined Oils (Hydrocarbons) Optical Electrode. Range 0-10,000µg/L with a 0.1µg/L resolution. Minimum Level of Detection 10 µg/L (Napthalene).

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2000-REFOIL

2000-REFOIL

AP-2000 Refined Oils (Hydrocarbons) Optical Electrode. Range 0-10,000µg/L with a 0.1µg/L resolution. Minimum Level of Detection 10 µg/L (Napthalene).

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5000-REFOIL

5000-REFOIL

AP-5000 Refined Oils (Hydrocarbons) Optical Electrode. Range 0-10,000µg/L with a 0.1µg/L resolution. Minimum Level of Detection 10 µg/L (Napthalene).

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7000-REFOIL

7000-REFOIL

AP-7000 Refined Oils (Hydrocarbons) Optical Electrode. Range 0-10,000µg/L with a 0.1µg/L resolution. Minimum Level of Detection 10 µg/L (Napthalene).

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