DOG-208FA High Temperature Dissolved Oxygen Sensor

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Shanghai BOQU Instrument Co., Ltd

Shanghai, China

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DOG-208FA electrode, which is specially designed to be resistant to 130 degrees steam sterilization, the pressure auto-balance high temperature dissolved oxygen electrode, for liquids or gases dissolved oxygen measurement, the electrode is most suitable for small microbial culture reactor dissolved oxygen levels online. Can also be used for environmental monitoring, wastewater treatment, and aquaculture online measurement of dissolved oxygen levels.
Dissolved oxygen electrode characteristics
1. DOG-208FA high-temperature fermentation dissolved oxygen electrode applicable for Polarographic Principle
2. With imported breathable membrane heads
3. Steel gauze electrode membrane and silicone rubber
4. Endure high temperature, No deformation characteristics
What is Dissolved Oxygen (DO)?
Dissolved oxygen is a measure of the amount of gaseous oxygen contained in water. Healthy waters that can support life must contain dissolved oxygen (DO).
Dissolved Oxygen enters the water by:
direct absorption from the atmosphere.
rapid movement from winds, waves, currents, or mechanical aeration.
aquatic plant life photosynthesis as a by-product of the process.
Why Monitor Dissolved Oxygen?
Measuring dissolved oxygen in water and treatment to maintain proper DO levels, are crucial functions in a variety of water treatment applications. While dissolved oxygen is necessary to support life and treatment processes, it can also be detrimental, causing oxidation that damages equipment and compromises products.

Dissolved oxygen affects:
Quality: The DO concentration determines the quality of the source water. Without enough DO, the water turns foul and unhealthy affecting the quality of the environment, drinking water, and other products.
Regulatory Compliance: To comply with regulations, wastewater often needs to have certain concentrations of DO before it can be discharged into a stream, lake, river, or waterway. Healthy waters that can support life must contain dissolved oxygen.
Process Control: DO levels are critical to controlling the biological treatment of wastewater, as well as the biofiltration phase of drinking water production. In some industrial applications (e.g. power production) any DO is detrimental to steam generation and must be removed and its concentrations must be tightly controlled.

                                                            Electrode body material
                                                            stainless steel
                                                        
                                                            Electrode insertion length
                                                            80,150, 200, 250,300 mm
                                                        
                                                            Permeable membrane
                                                            fluorine plastic, silicone, stainless steel wire mesh composite membrane
                                                        
                                                            Insert the electrode diameter
                                                            12 mm, 19 mm, 25 mm optional
                                                        
                                                            Cathode
                                                            platinum wire
                                                        
                                                            Anode
                                                            silver
                                                        
                                                            Electrodes built-in temperature sensor
                                                            PT1000 6. The response current in the air: About 60nA
                                                        
                                                            The response current in a nitrogen atmosphere
                                                            less than one percent response current of response in air
                                                        
                                                            Electrode response time
                                                            about 60 seconds (up 95% response)
                                                        
                                                            Electrode Response Stability
                                                            a constant oxygen partial pressure at a constant temperature environment, response current drift less than 3% per week
                                                        
                                                            Liquid mixing flow to the electrode response
                                                            3% or less (in water at room temperature)
                                                        
                                                            Electrode Response Temperature Coefficient
                                                            3% (greenhouse)