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bbe Moldaenke GmbH
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  5. AlgaeOnline - Algae Monitoring Analyser

AlgaeOnline - Algae Monitoring Analyser

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Online detection of chlorophyll concentration, algae classes and photosynthetic activity.The special patterns of algal fluorescence - so-called fingerprints - are used in bbe fluorometers for the qualification of different algae classes. The light sources for the excitation are LEDs with selected wavelengths. The fingerprints of four algae classes and for yellow substances are pre-defined in the instrument. However, user-specific fingerprints can also be defined.The physiological performance of the algae (algae activity) on photosynthesis is determined by exitation using additional background light.

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  • online chlorophyll analysis for measuring stations as well as for laboratory use
  • simultaneous determination of chlorophyll concentration, photosynthetic activity of chlorophyll and transmission
  • determination of different algae classes by excitation using coloured LEDs; calculation of the content of green algae, blue-green algae (cyanobacteria), brown algae (diatoms and dinoflagellates) and cryptophytes
  • direct measurement without sample preparation by filtration or dilution.
  • information on the photosynthetic activity of chlorophyll due to different patterns of excitation, correlated to oxygen evolution; the commonly used fluorescence signals f0, f, fm are used for calculation according to the Genty parameter method
  • yellow substances measurement (CDOM) to correct the calculation of the content of chlorophyll
  • integrated cleaning unit in the sensor -  prevents growth of biofilms during prolonged measurements
  • batch mode:
  • instrument can be switched from flow-through measurement to single measurement mode for laboratory operation
  • quick, simple chlorophyll determination using algal class analysis
  • determination of the photosynthetic activity of algae
  • maintenance-free
  • simple operation
  • different communication possibilities also for industrial applications:
    • up to 8 alarm outputs (potential-free contacts)
    • up to 16 analog outputs (4-20mA)
    • serial interface for data transfer
    • Ethernet - access to data from an external PC
    • USB connector for data transfer
    • optional ModBus connector
  • direct measurement without sample preparation via filtration, dilution
  • integrated cleaning unit reduces maintenance to a minimum
  • touch screen display
  • PC operation using bbe AOA software
  • water temperature measurement
  • waterway analysis and assessment
  • environmental assessment
  • intake monitoring
  • chemical assessment
  • dam monitoring
  • cooling water and production water monitoring
  • limnological work
  • research and education

The database software is used to record and analyse the data. The most important features are...

  • saving of data and parameters at any time
  • graphic display of all measurement values
  • online display in LAN
  • calibration of the instrument
  • parameterisation of the measurement
  • data export to EXCEL and to text files
  • print function
  • subsequent recalibration of algae classes