Lightweight, simple, and high-performance! The concepts are reproducibility, durability, and high precision.
The "FNW-522 model" is an easy-to-install turbidity monitoring device. The light beam emitted for turbidity measurement has a large diameter of 17mm. Therefore, even if slightly larger particles of debris mix into the water being measured, it does not significantly affect the turbidity value. Additionally, the sensor used in this product condenses the field knowledge gained over a long period since the installation of the first unit into a lightweight and compact form. 【Features】 ■ Transmission scattering light method with minimal influence from particle size and color ■ Light beam monitoring function that self-controls the light output of the light source ■ Waterproof technology that allows wiper operation at depths of 300m ■ Wiper cleaning mechanism that "prevents dirt" rather than "removes dirt" ■ Accuracy of ±2 degrees in normal river turbidity ranges *For more details, please refer to the PDF document or feel free to contact us.
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【Optional Equipment】 ■ Addition of measurement items (DO, chlorophyll a, etc.) ■ 2-3 point measurement by water depth ■ Compatible with high and low turbidity ■ Solar panel/battery powered ■ Simple float type ■ Low power wireless data transmission *For more details, please refer to the PDF document or feel free to contact us.
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【Main Installation Locations】 ■ Stream areas ■ Upstream river areas ■ Dam inflow areas ■ Dam reservoirs ■ Midstream river intake gates ■ Midstream river areas ■ River estuaries *For more details, please refer to the PDF document or feel free to contact us.
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For over 50 years, we have been involved in the development and manufacturing of hydrological, water quality, and oceanographic observation instruments that are committed to field specifications in order to understand water as it is. The DENTAN Group has served as a bridge between people and nature, watching over outdoor water environments. During this time, people have transformed water, which was once abundant and used metaphorically in Japan as if it were flowing freely, into a limited resource. They have realized that this has placed excessive burdens not only on themselves but on all living beings, that is, the natural environment. Now, there is a significant shift in awareness regarding the importance of water resources. To create an environment where people can appreciate nature, the DENTAN Group will continue to do our utmost, albeit with limited power.