Process Dissolved Oxygen Sensors
Polarography: In the electrode, there is a platinum rod as the cathode and a silver tube as theanode. The electrolyte is Potassium chloride solution, The outer surface of the cathode iscovered with an oxygen permeable film: The film can be made of polytetrafluoroethylenebreathable material. When a polarization voltage of 0.5-1.5V is applied between the anodeand cathode electrodes, and dissolved oxygen reaches the cathode surface through the thinfilm, the following reaction occurs on the electrodeCathode reduced: O,+2H,O+4e4OHAnode oxidation: 4CI ~ +4Ag ~ 4e-4AgCIAs long as the Diffusion current is measured, the solubility of dissolved oxygen can bemeasured, in order to eliminate the influence of temperature, salinity, air pressure and otherfactors, relevant technologies are used for compensation.
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We, CLEAN Instruments are a specialized manufacturer of water quality analysis instruments. Continuously making progress in R&D, upgrading sales & services, and improving logistics and management systems, we are committed to providing the best value products and solutions for worldwide customers.
CLEAN Instruments hold a growing array of assortments, including handy, easy to use testers, accurate, stable portable & benchtop meters, and compact, strong anti-interference industrial process controllers and various accessories to facilitate your measurement. Besides, CLEAN Instruments provide lots of specific parameters for target customers to select, from pH/ORP, Ion, Dissolved Oxygen to Conductivity, TDS, Free Chlorine, etc. CLEAN Instruments are proven to be the unalienable partners in water analysis, waste water monitoring, many laboratory applications, ecology studies and industry processes and so on.