CHLOROPHYLL BenthoTorch
In-situ measuring instrument for the rapid and simple
determination of the chlorophyll of benthic algae.
The bbe BenthoTorch is a reasonably priced instrument for the measurement of benthic algae concentrations in real time. It enables the immediate and reliable determination of algal growth for the estimation of primary production and for the analysis of ecological status (in accordance with the EU Water Framework Directive). The portable field instrument measures in vivo chlorophyll fluorescence in situ on different substrates such as stones or sediments without any sample preparation. The BenthoTorch calculates biomass on the basis of the chlorophyll-a content and determines
the distribution of the different algal classes. An individual measurement takes approximately 20 seconds. The calculation is performed in the instrument by using an optimised algorithm. The results are displayed directly after the measurement on the display and stored internally. Data transfer to a PC is performed via the USB interface using the data cable
supplied. The bbe++ software for subsequent evaluation and graphic representation of the data is supplied free of charge.
determination of the chlorophyll of benthic algae.
The bbe BenthoTorch is a reasonably priced instrument for the measurement of benthic algae concentrations in real time. It enables the immediate and reliable determination of algal growth for the estimation of primary production and for the analysis of ecological status (in accordance with the EU Water Framework Directive). The portable field instrument measures in vivo chlorophyll fluorescence in situ on different substrates such as stones or sediments without any sample preparation. The BenthoTorch calculates biomass on the basis of the chlorophyll-a content and determines
the distribution of the different algal classes. An individual measurement takes approximately 20 seconds. The calculation is performed in the instrument by using an optimised algorithm. The results are displayed directly after the measurement on the display and stored internally. Data transfer to a PC is performed via the USB interface using the data cable
supplied. The bbe++ software for subsequent evaluation and graphic representation of the data is supplied free of charge.
- Measurands Green algae [μg chl-a/cm²], blue-green algae [μg chl-a/cm²], diatoms [μg chl-a/cm²]
- Measuring range 0 - 15 μg chl-a/cm²
- Resolution 0.1 μg chl-a/cm²
- Weight 1.3 kg
- Dimensions (H x Ø) 500 x 60 mm
- Protection class IP 68
- Voltage 230 V / 50 Hz; 110 V / 60 Hz; or 12 V DC
- Power consumption 10 W
- Temperature Sample: 0 to 35 °C / Environment: 0 to 40 °C
- Maximum Depth 10 m
- Interface USB
- Options 10 m rope, telescopic rod, nylon shoulder bag, SDI-12 using the bbe converter
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