• Ultrasonics
  • Fluorescence

The Ex-500 is a side-stream Oil in Water analyser that uses Deep UV Fluorescence to provide continuous accurate measurements of oil concentrations in water.

The analyser detects a wide range of oils/ oil components to include Condensates, fuel oils, lubricating oils, gear oils, BTEX and crude oils. Reliable real-time data enables operators to take accurate discharge measurements and to improve efficiency to improve separation processes thus enabling cost reductions.


  • Patented ultrasonic cleaning.
  • Deep UV Fluorescence.
  • Periodic homogenisation of sample.
  • Configurable measurement ranges (0-10 ppm, 0-100 ppm […] up to 0-100,000 ppm).
  • Meaurement repeatability ±1% of full scale.
  • Remote management and diagnostics.
  • Easy to install (no sample conditioning required).
  • Multiple communications options – 4-20 mA, HART, Modbus, Extended Ethernet.
  • Adaptive ultrasonic cleaning.


  • Robust and reliable.
  • Easy to use.
  • Low Cost of Ownership (COO) with no routine maintenance required.
  • No degradation of signal or recalibration required.
  • Side-stream format offers localised sample control.
  • Droplet size compensation with homogenized samples.
  • Sample point facilitates laboratory correlation.
  • Remote control and monitoring (suitable for unmanned locations and remote process monitoring).
  • Instantaneous measurements.

The EX-500 uses the following technologies


Ensuring no routine maintenance of our Oil in Water analysers.

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Providing unrivalled accuracy and reliability of Oil in Water concentration

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You can find a full technical specification for the EX-500 in the datasheet.

View Datasheet