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bbe moldaenke BBE DAPHNIA TOXIMETER..
The Daphnia Toximeter continuously records and analyzes the movement of daphnia in the instrument chamber where they are under the influence of “source” or “test” water. The instrument's toxicity computation is based upon the statistical deviation of the various measured Daphnia behavioral parameters from the (user-defined) norm. This unique instrument has no counterpart in the world online toxicity monitors
toxicity measurement

online toxicity
The bbe Daphnia Toximeter assesses behaviour as below:
daphnia toxicity

Criteria used:

  • Speed measurements:
  • average speed
    speed distribution
  • Behaviour observation:
  • swimming altitude
    fractional dimension:
    measure for turns and circling movements, curviness
  • Growth observation:
  • size determination of daphnia
Application

bbe Toximeters provide a highly sensitive biological system for early detection of potentially dangerous unknown substances, in a wide variety of circumstances. These instruments are ideal for detecting water quality contamination in real-time to protect both plant and animal life. The Toximeters provide a means to detect (and alert users to) potentially dangerous circumstances. Based on the alert, the user may then take appropriate measures including further chemical analysis, water source diversion, process suspension or further treatment. Expensive chemical analysis can be targeted to key toxic events with potentially significant cost savings. Some examples of applications for our Toximeters include:
  • environmental monitoring, including ports, lakes, reservoirs and dams
  • source/ground water monitoring, supply monitoring and intake monitoring
  • surface water monitoring including rivers and lakes, measuring stations and early warning systems
  • pre-treatment assessment
  • post-treatment quality control
 
Technical data
  • Weight 60 kg
  • Size (HxBxD) 600x600x500 mm
  • Housing Iron varnished
  • Protection class IP54
  • Voltage 230 V
  • Power input 500 W
  • Measuring cycle 1-30min
  • Analogue output 2 x 4-20mA
  • Intersection 1 x RS232
  • Alarm 1 x contact
  • Sample temperature 0 - 30 °C
  • Maintenance interval > 7 days
  • Data capacity 4 GB HD

Options

  • Algae fermenter
  • 2nd chamber
  • Sample supervision
  • Cooling aggregate
  • Vibration supervision
  • Network connection
  • Distant maintenance
  • Alarm fax

 

 

 

 

 



toxicity monitor

Winter Olympics 2002 used Daphnia analysers to protect water supply against terrorist attack