miniBackScat I

The miniBackScat I fluorometers 1010 to 1012 are designed for the in situ measurement of the concentration of Chlorophyll a of green and brown algae and/or blue algae respectively.
Features:
- tuned to Chlorophyll a, excellent selectivity, wide measuring range,
high sensitivity
- standard analogue output, output linear in concentration
- compact instrument, small outlines, titanium connector,
maintenance-free for long periods
- very low power consumption, wide voltage range of the power supply,
fast readiness after power-on
- electronic compensation of daylight interference
- quanta controlled excitation
- two measuring ranges with automatic, manual and remote control
- options: titanium housing, integrated turbidity sensor, depth sensor
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- Light Source: 2 GaN-LED, peak wavelength 450 nm, quanta controlled emission - Detector: Silicon diodes, detector filter tuned to Chlorophyll a fluorescence, peak wavelength 683 nm - Ranges: 0 – 10 μg/l and 0 – 100 μg/l selectable by turning the front cap, manual, automatic and remote control - Sensitivities: 0.02 μg/l, 0.1 μg/l - Signal Output: 0 – 10 V analogue, (option: 0 – 5 V),linear in concentration - Time Constant: 150 ms - Range Input/Output: 0..+5 V (max. 15 V) in/ 0..+5 V (man. 10 V) out - Maximum Operating Depth: 500m, Optional Titanium Version: 2500m |
Measurements in Lake Geneva by INRA in September 2005
Download Datasheet Dr. Haardt miniBackScat I
miniBackScat II

The miniBackScat-II 1021 fluorometer is designed for the in situ measurement of the concentration of Chlorophyll a. It allows for simultaneous measurement of two fluorescent agents: Chlorophyll a of blue and/or green plus brown algae.
Features:
- Chlorophyll a of blue and/or green plus brown algae, wide measuring range,
high sensitivity, low cross-talk
- Standard analogue output, output linear in concentration
- Compact instrument, small outlines, titanium connector,
maintenance-free for long periods
- Low power consumption, wide voltage range of the power supply,
fast readiness after power-on
- No daylight interference
- Quanta controlled excitation
- Two measuring ranges with automatic and remote control
- Options: titanium housing, integrated turbidity sensor, DOM sensor
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- Light Sources: 4 LEDs, peak wavelengths 450nm, 590nm, quanta controlled emission - Spectra: 3 spectra selectable, remote and manual control (turning the front cap) - Detector: Silicon diodes, detector filter tuned to Chlorophyll a fluorescence, peak wavelength 683 nm - Ranges: 0 – 10 μg/l and 0 – 100 μg/l automatic and remote control - Sensitivities: 0.02 μg/l, 0.1 μg/l - Signal Output: 0 – 10 V analogue, option: 0 – 5 V linear in concentration, model 1022 provides two separate signal outputs, - Time Constant: 150 ms - Range Input/Output: 0..+ 5 V (max. 15 V) in/ 0..+5 V (man. 10 V) out - Maximum Operating Depth: 400 m, Optional Titanium Version: 2500m |
Download Datasheet Dr. Haardt miniBackScat II
Overview Series 1000 miniBackScat in situ flurometers:One channel: 1010 Chlorophyll a (green, brown algae)
1011 Chlorophyll a (green, brown, blue algae)
1012 Chlorophyll a (blue algae)
1014 DOM
1015 Rhodamine WT
1016 Sulforhodamine
1018 Uranine
1019 DOC
1020 Chlorophyll a (green+brown or blue or all algae)
Two channels:
1021 Chlorophyll a and Phycoerythrin
1022 Chlorophyll a green, brown algae and blue algae
1024 Chlorophyll a and background
1026 Rhodamine B and Uranine