The HydroSense 4410-LMP Oil in Water Analyser offers continuous on-line monitoring for ppm concentrations of petroleum oils in effluent and produced water without chemicals or lag time. A non-contacting sensor design minimizes system maintenance. The 4410-LMP is the engineered combination of three unique designs: The sensing chamber contributes a continuous controlled water sample While the optical sensor package hovers above the passing stream The Arjay controller then monitors the multiple signals to provide a reliable ppm concentration output This Oil in Water Analyser uses a UV fluorescence technique to target the aromatic component of the oil contamination. Through a site calibration this aromatic tag provides an indication relative to total oil. A continuous sample flow is tapped or pumped off the process line and directed through the HydroSense chamber. It passes behind the non-contacting UV light source and is targeted with filtered light energy. The soluble and emulsified oils in the water will excite from this light energy and fluoresce light energy back out of the water at a signature wavelength. The intensity of light energy at this wavelength is measured to provide an indication of the ppm concentration.