Features

	In-situ hydrocarbon detection / monitoring
	Water mass indicator studies (Gelbstoff)
	Pipeline leak detection
	Pollution monitoring
	Designed for use on profiling, towed, moored or ROV deployments
	Biogeochemical oceanography

 
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	Small, low cost fluorimeter
	Robust miniature Optics
	High sensitivity
	Low turbidity breakthrough
	Ground loop isolation to facilitate system integration
	Acetal Housing for corrosion inhibition
	Low power consumption
	Analogue output
	High rejection of ambient daylight
	Stable zero with low temperature coefficient
	Very low noise & large dynamic range with ultra-linear signal processing
	Accepts 6 : 1 supply voltage input

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The UV MINI^tracka is a submersible fluorimeter to monitor the concentration of hydrocarbons (360nm) or Gelbstoff (440nm) in a wide range of oceano- graphic applications. In support of this, it has been designed to be deployed from submersible vehicles, moored or profiling systems. This robust, compact, lightweight instrument provides significant improvements in power consumption over its predecessor, the UV AQUA^tracka. The instrument is easy to use and gives accurate and repeatable measurements.

The UV MINI^tracka's pressure housing is manufactured in acetal for long life. It utilizes a high power LED light source and a low temperature coefficient photodiode which feeds a low noise preamp that, together with phase sensitive detection, gives an overall electronic noise figure close to the theoretical minimum possible. Data output is factory set as linear analogue.   The performance of  MINI^tracka II has a high degree of insensitivity to water temperature changes due to the low tempco of the new generation SQW LEDs, the selected photodiode used and the careful circuit design.

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The sophisticated design of the electronic signal processing, combined with cowl design principles of its predecessor, the UV AQUA^tracka incorporated in the pressure housing, enables it to operate successfully in high levels of ambient light. Hence, using UV MINI^tracka means there is generally no requirement to pump seawater through a dark observing chamber, thus obviating the need for water flow corrections - not to mention the cost, inconvenience and power drain of a pump. For deck & laboratory applications, a flow through manifold is available.

The ease of use and installation is further enhanced by the provision of galvanic isolation between the power
0 volt and signal 0 volt lines within UV MINI^tracka, thereby interrupting possible 'ground loops'. The high efficiency, proprietary design DC converter can also handle the unusually wide range of supply voltages between 7V and 40V without significant change in a power drain of 0.7W. The output will drive almost any sort of measuring or data logging device. It should be noted that the output of UV MINI^tracka II is linearly related to concentration and not logarithmically as might be expected from its UV AQUA^tracka origins.