Dissolved oxygen analyzer brand

Among the five industrial parameters, water quality analysis occupies a large proportion, and dissolved oxygen is one of the core parameters of water quality. So when we choose a dissolved oxygen analyzer in an industrial site or in our own farms, how should we choose, what should we pay attention to, and which brands with good reputation and cost-effectiveness are worth choosing? With this question, today’s small Let me give you a brief description of the brand of dissolved oxygen analyzer.　　Before getting to know the brand of dissolved oxygen meter, first of all, I want to 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.　　 So what are the more famous brands of dissolved oxygen analyzer? First of all, from the market level, it can be roughly divided into two levels, domestic and foreign. Imported high-end brands such as E+H, Hash, and Mettler are the mainstream. Whether it is membrane method or fluorescence method, its technical level is far beyond the domestic technical level. Therefore, if the project budget is high, the professionalism And if the product performance requirements 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 can provide a good one-stop shop. The service is to select all the water quality instruments for the entire project for you, but the disadvantage may be that the delivery period is long, and because of the large customer base, it is difficult to carefully deal with the pre-sales and after-sales of each customer. The domestically produced products generally have a lower price than foreign ones. Regardless of the fluorescence method or the membrane method, the price of foreign products is two or three times or more than that of domestic products. At present, the price of membrane dissolved oxygen meter on the market is basically one-third of that of fluorescence method, while the brands in Beijing area are relatively closer to imports, so the price will be relatively more expensive, while the prices of brands in other regions are not very high. Fluctuated. From the analysis of history, these products are slowly imported from abroad. Therefore, in terms of technology, foreign brands are better than domestic in many aspects, but because of their prices and delivery dates, many customers are actually more difficult to accept. , And therefore fall into a dilemma. But on the other hand, from the perspective of actual technical parameter requirements, domestically produced products can generally meet general requirements. Kaidi is a manufacturer that directly uses Hash for fluorescent caps. Therefore, at some levels, its branding can be in the country to a certain extent. Shanghai is a rare automation brand that is comparable to, competes or even substitutes for foreign brands.