DO Meter is a monitoring device used to measure the dissolved oxygen level in the water. It is widely used in various industries such as wastewater treatment, aquaculture, and environmental monitoring. Dissolved oxygen (DO) is an important parameter in water quality because it is essential for aquatic life and can affect various biological and chemical processes.
DO meters work on the principle of polarography? The device consists of a probe and a meter. The probe has a sensing electrode that is covered by a thin membrane that allows oxygen to diffuse into it. The electrode generates a small electrical current that is proportional to the concentration of dissolved oxygen. The meter measures this current and displays the corresponding dissolved oxygen level.
DO meters can be used in various applications, such as monitoring dissolved oxygen levels in wastewater treatment plants, measuring the oxygen level in fish tanks, and measuring the dissolved oxygen level in surface water bodies. In wastewater treatment plants, DO meters are often used in the aeration tanks to ensure that the dissolved oxygen levels are sufficient for the microorganisms to break down the organic matter.
DO meters can be handheld or benchtops, depending on the application. Handheld DO meters are portable and can be used for on-site measurements, while benchtop meters are more accurate and precise and are often used in laboratories for more critical applications.