Online dissolved oxygen meter manufacturers

When it comes to the measurement of dissolved oxygen, the first reflection in everyone's mind may be iodometry. Iodometry is a common measurement method in laboratories, but it has an obvious disadvantage, that is, timeliness. Because the iodometric method requires sampling and measurement, but the industry is changing rapidly and often requires real-time monitoring, so the online dissolved oxygen meter has become the instrument of choice for most factories. So how to choose the manufacturer of the online dissolved oxygen meter? The editor next will give you some empirical analysis and suggestions in front of the screen.　　Before getting to know the online dissolved oxygen meter manufacturers, the editor will first popularize a concept for everyone, that is, dissolved oxygen. The molecular oxygen in the air dissolved in water is called dissolved oxygen. The content of dissolved oxygen in the water is closely related to the partial pressure of oxygen in the air and the temperature of the water. Under natural conditions, the oxygen content in the air does not change much, so the water temperature is the main factor. The lower the water temperature, the higher the dissolved oxygen content in the water. The molecular oxygen dissolved in water is called dissolved oxygen, usually recorded as DO, expressed in milligrams of oxygen per liter of water. Dissolved oxygen value is a basis for studying the self-purification ability of water. The dissolved oxygen in the water is consumed, and it takes a short time to return to the initial state, indicating that the water body has strong self-purification ability, or that the water body pollution is not serious. Otherwise, it means that the water body is seriously polluted, the self-purification ability is weak, or even the self-purification ability is lost. Therefore, it is not difficult to see why dissolved oxygen is a water quality parameter that various industries need to monitor, and its significance is obvious.　　The dissolved oxygen meter is an instrument used to measure the content of oxygen dissolved in an aqueous solution. The oxygen is dissolved in the water through the surrounding air, air flow and photosynthesis. It can be used to measure and monitor processes where oxygen content affects reaction speed, process efficiency or the environment: such as aquaculture, biological reactions, environmental testing (lakes, streams, oceans), water/wastewater treatment, wine production and other process links. Dissolved oxygen meters can be divided into portable dissolved oxygen meters, desktop dissolved oxygen meters and pen-type dissolved oxygen meters from their portability. And from the use can be divided into: laboratory dissolved oxygen meter, industrial online dissolved oxygen meter and so on. Therefore, before selecting a dissolved oxygen meter manufacturer, we must first clarify what kind of dissolved oxygen meter we need. On-line dissolved oxygen meter is an instrument commonly used in various industrial sites. The online dissolved oxygen meter can be broadly divided into two different principles of online dissolved oxygen meter: membrane method and fluorescence method. Among online dissolved oxygen meter manufacturers, imported high-end brands such as E+H, Hach, and Mettler are the mainstream. Whether it is membrane method or fluorescence method, its technical level is far beyond the domestic technical level, so if the project If the project budget is high, and the requirements for professionalism and product performance are strong, these three imported companies are a good choice. At the same time, these three companies are also strong in water quality. Therefore, if it is a sewage treatment project, these three companies Both can provide a good one-stop service to select all the water quality instruments for the entire project for you. However, if it is a new project or a foreign transformation to replace the domestic one, the relative price of the Beijing area is relatively high. It is mainly joint ventures. Kaidi is a manufacturer that focuses on process automation. Its product series are complete, including five major industrial parameters. As for the dissolved oxygen meter, the fluorescent cap is made entirely of Hash, and the price is within the average market price range. At the same time, it has multiple offline offices and is a good online dissolved oxygen meter manufacturer.