Dissolved Oxygen Sensor

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565 USD

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$565.00/ 1 piece

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Yantai Chemins Instrument Co., Ltd.

Shandong, China

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RDO-206A integrated online fluorescence dissolved oxygen sensor is designed and fabricated based on the quenching principle of exciting fluorescence by specific substances in physics. When the excitation light is shone on the fluorescent material on the surface of the fluorescent film head, the fluorescent material is excited and emits fluorescence. The quenching time of fluorescence is affected by the concentration of oxygen molecules on the surface of the fluorescent film head. By detecting the phase difference between fluorescence and excitation light and comparing it with the internal calibration curve, the concentration of oxygen molecules can be calculated, and the final value can be 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 setting
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.
Rs-485 interface, Modbus/RTU protocol.
Low power consumption，anti-interference.

                                                            Model
                                                            RDO-206A
                                                        
                                                            Sensor shell material
                                                            POM and 316L stainless steel
                                                        
                                                            Measuring principle
                                                            Fluorescence method
                                                        
                                                            Range ability
                                                            0~20mg/L (0 - 200% saturation，25℃)
                                                        
                                                            Resolution ratio
                                                            0.01mg/L，0.1℃
                                                        
                                                            Fluorescent cap life
                                                            Guaranteed use for one year (under normal use)
                                                        
                                                            Precision
                                                            ±2%F.S.，±0.3℃
                                                        
                                                            Calibration
                                                            Two-point calibration
                                                        
                                                            Temperature compensation
                                                            Automatic temperature compensation（Pt1000）
                                                        
                                                            Cable length
                                                            5 meters, other lengths customizable
                                                        
                                                            Output mode
                                                            RS-485 bus, Modbus-RTU protocol
                                                        
                                                            Levels of protection
                                                            IP68
                                                        
                                                            Power dissipation
                                                            ＜0.3W@12V
                                                        
                                                            Source
                                                            0.2W@12V
                                                        
                                                            Working conditions
                                                            0～45℃、<0.2MPa
                                                        
                                                            Installation mode
                                                            Immersion mounting
                                                        
                                                            Storage temperature
                                                            -5～65℃