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AlgSys_Bentho
Analysis of
benthic
algae |
The
AlgSys_Bentho 'torch' measures benthic algae in real time
and in-situ by utilising the fluorometric characteristics
of the different algal pigments in the intact cell, hence
requiring no sample preparation. The amount of red fluorescence
arising from excitation at different wavelengths gives a
quantitative estimate of the algal density and its classification.
The Benthotorch is precalibrated for the most prominent
algal classes in the field.The torch is activated simply
by inverting it and back again. A clearly presented menu
enables one-step measurement by utilising the four touch
sensitive keys by the display. After measurement initiation
a count down timer is displayed and when finished, after
~ 15 seconds, a vibration alert is produced.
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Its
speed and simplicity of operation together with its robust
engineering and on board data logging make it an ideal tool
for satisfying the requirements of the water framework directive.
The WDF states that the ecological status of water bodies
should be regularly assessed. Since primary producers, which
include Benthic algae, are fundamental to the water body condition
it has effectively become obligatory to study the development
and abundance of these organisms. Conventional methods for
assessing Benthic algae cannot distinguish the different classes
and are extremely time consuming and expensive to perform. |
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| FEATURES |
- green,
blue green and diatom Chla determination
- automatic
substrate compensation
- datalogger
function
- hand-held
operation
- touch-pad
operation
- GPS software
as standard
- integral
instrument display
- PC
software included
- internal
rechargeable batteries with power-down feature
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| BENEFITS |
- no
sample preparation
- easy
handling, cable-free operation
- simultaneous
determination of green, blue green algae and diatoms
- real-time
data displayed
- rapid portable
operation
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| APPLICATIONS |
- EU WFD ecological status assesment
- restoration/rehabilitation projects
- environmental
monitoring
- limnological
work
- research
and education
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| SPECIFICATIONS |
Measurands
|
- green algae
[µg chl-a/cm2]
- diatoms [µg
chl-a/cm2]
- blue-green
algae [µg chl-a/cm2]
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| Measuring
range |
0
- 10 µg chl-a/cm2 |
| Resolution |
0.2
µg chl-a/cm2 |
| Weight |
1.3
kg |
| Size
(H x Diameter) |
500
x 60 mm |
| Power
supply |
110/230
V - 50/60 Hz - 12V |
| Sample
temp. |
0
- 30° C |
| Protection
|
IP68
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| Depth
range |
10
m |
| Features |
GPS co-ordinates
USB data port |
| Memory
Capacity |
1000
datasets |
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| ©
Envitech Ltd: 2011 |
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