• Sign Up or Sign In


Sensors & systems for freshwater and oceanographic monitoring Chelsea Technologies Group manufactures a range of innovative multi-parameter sensors & systems for monitoring the physical, optical & biological oceanographic & fresh water environments. Sensors are available for in-situ chlorophyll & algae class studies, dye tracing, oil spill monitoring, airport apron pollution runoff studies, water abstraction management and effluent detection as well as primary productivity studies, bloom detection, toxicant detection within domestic water supplies and early detection of contamination events in potable and pre-treated water protection. With nearly 50 years' experience in sensors and systems design, Chelsea's products are used in a diverse range of applications in the marine, environmental, defence, homeland security, industrial process control and life science markets. Contact Justin Dunning (sales@chelsea.co.uk, Tel: +44(0)20 8481 9000) today and let me him help you with your particular application.


Mr Justin Dunning
55 Central Avenue

West Molesey

Water Intake Protection using the new FASTflow FFR Fluorimeter

Chelsea's Justin Dunning will be presenting on "Water Intake Protection using the Chelsea FASTflow fluorimeter" during the Managing Risk session at the Sensing in Water 2011 Conference on 21st September.

The FASTflow fluorimeter is the successor to the successful FASTtracka II, which had demonstrated detection of a wide range of potential contaminants, and had successfully confirmed its ability to detect contaminated water in the field.

The FASTtracka II and FASTflow fluorimeters both operate by utilizing active chlorophyll a fluorescence from water-borne algae (Fast Repetition Rate fluorescence, FRRF), which provides a non-destructive and minimally intrusive method of probing oxygenic photosynthesis. Information from these instruments can provide immediate detection of a wide range of contaminants that attack the photosynthetic process. Of equal relevance is the information gained on the 'health' of the algae present, and its growth potential, which can provide early notification of onset of an algae bloom.

A key benefit of the FRRf technique is its rapidity in taking these readings, which occur in orders of microseconds, which allow robust measurements of photosynthetic ability in flowing water systems.

Justin's presentation will focus on the FASTflow fluorimeter, which offers three channels of differing wavelengths (as opposed to the single chlorophyll a channel of the FASTtracka II). The operation of all three channels within the FASTflow instrument, together with the new FASTpro 3 software, provides improved estimates of primary productivity. The FASTflow also provides complete flexibility of control of individual channels allowing interrogation of different algae groups within the sample, i.e. green algae, blue-green algae, diatoms.

For further information please email Chelsea Technologies Group Ltd

© Faversham House Group Ltd 2020. WWT and WET News news articles may be copied or forwarded for individual use only. No other reproduction or distribution is permitted without prior written consent.

Cookie Policy   |   Privacy Policy