UviLux Fluorometer for real-time monitoring of refined & crude hydrocarbons, CDOM and Tryptophan

• Small, low cost in-situ fluorometer
• Range of wavelengths available
• Digital output in engineering units 
• Additional analogue output as standard
• User selectable sampling rate, 0.1Hz - 3Hz
• Low power consumption 
• High rejection of ambient daylight 
• Low noise, high sensitivity 
• Low turbidity breakthrough 
• User adjustable dynamic range
• RS232 & analogue output (or RS422 option)
• Acetal C housing

The UviLux is an innovative, sensitive, low cost, digital in-situ UV fluorometer that offers the user significantly increased functionality when compared to existing UV fluorometers. Variants of the UviLux provide real-time monitoring of the concentration of refined polyaromatic hydrocarbons (365nm), crude hydrocarbons (450nm), Coloured Dissolved Organic Matter (CDOM) and Tryptophan, a surrogate marker for Biological Oxygen Demand (BOD) and bacterial contamination in waste, recycled and natural water supplies. The UviLux can be deployed in a wide range of coastal, oceanographic and fresh water applications.

The UviLux has an acetal resin housing suitable for deploying independently as well as from submersible vehicles, moored or profiling systems. This robust, compact, lightweight fluorometer has very low power consumption, is easy to use and gives accurate and repeatable measurements.

The fluorometer utilizes a novel UV LED light source and a miniature 8-stage photomultiplier coupled to a low noise preamp, which combined with phase sensitive detection, provides highly sensitive measurement capabilities. The sophisticated electronic signal processing, combined with cowl design principles employed in our UV AquaTracka, enables the UviLux to operate successfully in high levels of ambient light. Because of this, there is no requirement to pump sample through a dark measurement chamber, thus obviating the need for water flow corrections or the cost, inconvenience and power drain of a pump.

The UviLux can be supplied with either recessed or flush windows depending upon the required application. For deck & laboratory use, a flow through manifold is also available. Ease of use and installation is further enhanced by the provision of galvanic isolation between the power and signal 0V rails, thereby avoiding the possibility of  'ground loops'. The highly efficient, proprietary, d.c. converter can also handle an unusually wide supply voltage range of 9V to 36V without significant change to the power consumption of 1.3W.

Two signals can be obtained from the standard UviLux: the first is a digital RS232 output in engineering units, the second a 0V to 5V volt calibrated analogue output derived from the digital signal. Single RS422 and SDI-12 outputs are also available as options. This flexibility makes the UviLux suitable for integrating into many different systems and platforms.

A Windows based Graphical User Interface (GUI) is provided that allows the user to both plot and record time stamped data when operating the UviLux directly from a PC and gives control over a many instrument parameters, including: sampling rate, detector sensitivity, and calibration factors. Although small and low cost, the UviLux fluorometer maintains the performance standards and build quality previously maintained by Chelsea’s range of in-situ fluorometers .

The standard UviLux fluorometer is supplied with transit case, handbook and Windows based Graphical User Interface (GUI). There is now a range of accessories available to compliment the UviLux Fluorometer. You will need to decide on cable type, length and cable termination. You will also need to give consideration to how you wish to interface the fluorometer to either a laptop, PDA or your own system.

If you need advice regarding which accessories you may need, please telephone This e-mail address is being protected from spambots. You need JavaScript enabled to view it on +44(0)20 8481 9019.