KWS-650C integrated online fluorescence dissolved oxygen sensor is designed based on the quenching principle of excited fluorescence by specific substances in physics. When the excitation light shines on the fluorescent substance on the surface of the fluorescent membrane head, the fluorescent substance is excited and emits fluorescence. The extinguishing time of the fluorescence is affected by the concentration of oxygen molecules on the surface of the fluorescent membrane head. The concentration of oxygen molecules can be calculated by detecting the phase difference between the fluorescence and the excitation light and comparing it with the internal calibration curve, and the final value is output after temperature and salinity compensation.

• No electrolyte is required and will not be polarized.
• No oxygen consumption, not affected by flow rate.
• Built-in temperature sensor, automatic temperature compensation.
• Built-in salinity compensation, flexible parameter settings.
• Free from interference by chemicals such as sulfides.
• Small drift, rapid reaction, more accurate measurement.
• Long service cycle, lower cost of use.
• Simple replacement of fluorescent cap.
• R-485 interface, Modbus/RTU protocol.
• Low power consumption,anti-interference.