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 is capable of automatically managing water quality in facilities such as water treatment plants, dams, and rivers. 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 a NaI scintillator and continuously detects radiation concentration using a conversion factor. ■ Capable of constant monitoring of radiation concentration from low levels, even in response to changes in water flow conditions or sudden changes in radiation concentration. ■ The detection unit can be installed regardless of the presence of a measurement shielding tank. ■ With the 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) ■Detection Unit Protective Tube Material: SUS304 ■Detection Unit Protective Tube Surface Treatment: 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 ■ Reservoir ■ Dam ■ Lake and Marsh ■ River ■ Intermediate Storage Facility ■ Decontamination Soil Storage Site ■ UPZ ■ Water Purification Plant, etc. *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.