The detection unit can be installed regardless of the presence of a measurement shielding tank! The detection method is a 2-inch NaI scintillator.
The "WD-521 type" is an underwater radiation concentration automatic observation device that can measure and monitor the radiation concentration in water in real-time. It can automatically manage water quality in water treatment facilities, dams, rivers, and other locations. The detection unit is installed underwater and connected to the measurement control unit via a cable. Additionally, the measurement data is output externally from the measurement control unit via RS-232C or RS-485. 【Features】 ■ Measures radiation counting rates using NaI scintillators and continuously detects radiation concentration using conversion factors. ■ Capable of constant monitoring of radiation concentration from low levels, even in flowing conditions or during sudden changes in radiation concentration. ■ The detection unit can be installed regardless of the presence of a measurement shielding tank. ■ With optional simultaneous measurement of turbidity and water temperature, changes in radiation concentration in even lower concentration ranges can be detected instantaneously. *For more details, please refer to the PDF document or feel free to contact us.
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【Specifications (Partial)】 ■Detection Method: NaI Scintillator 2 inches ■Measured Nuclides: Cs134, Cs137 ■Measurement Range: <1.0 to 150 Bq/L ■Detection Limit: Below 2.0 Bq/L (10 minutes) ■Material of Detection Unit Protective Tube: SUS304 ■Surface Treatment of Detection Unit Protective Tube: Acid Wash Treatment ■Detection Unit Cable: Captive Tyre Cable φ8 ■Measurement Control Unit ・10.4-inch LCD Touch Panel ・Equipped with Lightning Arrester, Surge Protection Transformer, and UPS *For more details, please refer to the PDF document or feel free to contact us.
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[Installation Locations] ■ Agricultural Water ■ Reservoirs ■ Dams ■ Lakes and Ponds ■ Rivers ■ Intermediate Storage Facilities ■ Decontaminated Soil Storage Sites ■ UPZ ■ Water Purification Plants, etc. *For more details, please refer to the PDF document or feel free to contact us.
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To understand water as it is, we have been involved in the development and manufacturing of hydrological, water quality, and oceanographic observation instruments with a focus on field specifications for over 50 years... 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 flowing like water, into a limited resource. They have realized that this has placed excessive burdens not only on themselves but also on all living organisms, that is, the natural environment, and now they are significantly reassessing the importance of water resources. To create an environment where people can enjoy nature, the DENTAN Group will continue to do its utmost, albeit with limited power.