Chlorophyll and turbidity sensor with wiper

INFINITY-CLW is an autonomously deployable data logger for long-term chlorophyll and turbidity measurements. The light sources (LEDs) of chlorophyll and turbidity sensors are highly stable, Minimizing the change over time. The instrument has a mechanical wiper that periodically sweeps to inhibit biological growth on the optical window. The turbidity sensor has a good correlation with SS (Suspended Solid) over the range. INFINITY-CLW provides Highly accurate and long-term stable chlorophyll and turbidity data in oceans, rivers and freshwater. Two versions of the INFINITY-CLW are available. ACLW2-USB, the autonomous deployable data logger version that comes with internal battery and memory (miniSD card), and the other, ACLW2-CAR/CAD), the digital output version (CAR: RS-232C, CAD: RS-485).

Relative paper

1. Syariz M. A., Lin C.-H., Nguyen M. V., Jaelani L. M., Blanco A. C., (2020) WaterNet: A Convolutional Neural Network for Chlorophyll-a Concentration Retrieval. Remote Sensing, 12, 1966. DOI: 10.3390/rs12121966
2. Abe H., Sampei M., Hirawake T., Waga H., Nishino S., Ooki A. (2019) Sediment-Associated Phytoplankton Release From the Seafloor in Response to Wind-Induced Barotropic Currents in the Bering Strait. Frontiers in Marine Science, 6, 97. DOI: 10.3389/fmars.2019.00097
3. Jansen H. M. & Capelle J. J., (2018) The effect of mussel farming on sediment dynamics in the Wadden Sea Case studies evaluating the local effects of mussel seed fisheries and mussel harvest on turbidity and sedimentation. Wageningen, Wageningen Marine Research report C046/18. 67pp. DOI: 10.18174/454788
4. Ballesta-Artero, I., Witbaard, R., Carroll, M.L. et al. (2017) Environmental factors regulating gaping activity of the bivalve Arctica islandica in Northern Norway. Marine Biology, 164, 116. DOI: 10.1007/s00227-017-3144-7

Parameter	Chlorophyll	Turbidity	Temperature
Range	0 to 400ppb (Uranine reference)	0 to 1,000FTU (Formazin reference)	-3 to 45ºC
Accuracy	Non-linearity±1%FS (0 to 200ppb)	±0.3FTU or 2%	±0.02℃ (3 to 31ºC)
Resolution	0.01ppb	0.03FTU	0.001ºC