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Applications

Features

Product Description

Specification


Applications

Product Description

  • Primarily used in the marine environment for biomass studies.

  • Whilst the abundance of individual bioluminescent species can be studied, it is often an indication of toxic algal blooms.

  • Primary production assessment

  • Designed to be moored or profiled (with pumped systems) or deployed in towed vehicles (AQUAshuttle, Nn-Shuttle, SeaSoar).

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Features

  • Small, rugged

  • Low power consumption

  • High sensitivity

  • interface for flow sensor

 

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GLOWtracka’s precision flow meter stimulates bioluminescent organisms – principally dinoflagellates. The instrument then measures the light flashes as the organisms pass the detector. The complete range of flashes that can occur – from single events to mesoscale – is measured. 

The measurements indicate changes in primary productivity in an area, giving the instrument a useful role in pollution monitoring and biomass studies. Since the abundance of individual bioluminescent species can be studied, it is often an indication of toxic algal blooms. 

GLOWtracka is designed to be moored, profiled (with pumped systems) or deployed in towed vehicles.

Chelsea Technologies Group is the world's leading designer & manufacturer of towed oceanographic vehicles. These vehicles have to date gathered millions of miles of ocean date. The  AQUAshuttle towed vehicle system  in  use with the Royal Navy contains a  GLOWtracka.

The  AQUAshuttle towed vehicle system  in  use with the Royal Navy contains a  GLOWtracka.

 

Specification

 GENERAL 

Type:

Flow through (28mm internal pipe diam.)

Optical viewing:

Transverse to flow

Detector:

Photodiode (100 sq.mm.)

Irradiance detectivity

10 picowatt at 560nm over z.f. -50Hz(-3db)

Relative responsivity:

400nm    600nm       700nm
x 0.4       x 1.1         x 1.3 (nom.)

Power requirement:

External supply version:
6.0V to 25V (40mA at 12V nominal); fully insulated from all outputs via DC-DC converter.

Grounding:

All circuitry DC isolated from chassis

Signal outputs:

All 1 volt full-scale, 0.5 ohm source resistance, (z.f. - 50Hz)
> 10 kilohm load

Flowmeter input:

Zero-crossing required, from +/-5mV to +/-100V;
500Hz full-scale, other scalings as factory option.

Depth capability:

1000 meters standard.

Dimensions:

112.5mm. diameter; 152mm overall length.

Weights (approx):

2.4Kg in air

Connector:

Impulse LPMIL-4-PS

In view of our continual improvement, the designs and specifications of our products may vary from those described.


Chelsea Technologies Group
55 Central Avenue, West Molesey,
Surrey, KT8 2QZ, UK.
Tel: +44 (0)20 8481 9000    Fax: +44 (0)20 8941 9319
Email: sales@chelsea.co.uk

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