What should I pay attention to when choosing a multi-parameter water quality analyzer?

Instruments used in the field of water quality analysis, COD, ammonia nitrogen, total phosphorus, total nitrogen analyzers, these are commonly used analytical instruments in laboratories. Today we will introduce a more powerful water quality analyzer: multi-parameter water quality analyzer. A multi-parameter water quality detector is an instrument that can detect various parameters of water bodies; for example, some multi-parameter water quality detectors have the functions of COD, ammonia nitrogen, total phosphorus, total nitrogen, and sulfide detectors. Water quality testing can accurately, timely and comprehensively reflect the current status of water quality, and provide scientific basis for water quality management, pollution source control, and water quality planning. Source Easy Test understands that the conventional parameters for judging water quality are: residual chlorine, COD, ammonia nitrogen, total phosphorus, and suspended solids (ss). Most 'multi-parameter water quality detectors' can measure the data of these types of indicators, while Some instruments can even measure color, manganese, total nitrogen, turbidity, chlorine dioxide and other indicators. When choosing a multi-parameter water quality detector, you need to pay attention to the following aspects: 1. Test items The multi-parameter water quality detector has multiple functions. In theory, of course, the more items that can be detected, the better, but the price of the instrument with more functions Also more expensive. Therefore, when the laboratory chooses, it should choose cost-effective products that meet the most commonly used functions according to its actual needs, and don't be greedy for more and more. Generally, a multi-parameter water quality detector equipped with three measurement modules: optical detection module, conductivity module and measurement error module can realize the detection of COD, ammonia nitrogen, total phosphorus, total nitrogen, suspended solids (ss) and other items, and the price is also moderate. Recommended. 2. Intelligent detection and automatic identification Multi-parameter water quality detectors with intelligent functions can greatly improve work efficiency. For example, many instruments have the function of power-on self-test, with the function of intelligently distinguishing the end point, supporting automatic reading, timing reading, timing interval reading, manual reading; supporting automatic temperature compensation, automatic calibration, electrode calibration reminder; automatic identification of standard solutions, supporting multiple Point calibration; these are very useful functions. 3. There are many types of data management and communication peripheral measurement, and data storage and management functions are very necessary. The multi-parameter water quality detector with large-capacity data storage and convenient data viewing, management and deletion functions can save a lot of workload. Equipped with a standard RS-232 communication interface, it can be connected to a printer to print the measurement results in real time. Equipped with a USB peripheral interface, it can be connected to a computer, and cooperate with some special software for data collection and processing. 4. Waterproof, dustproof, power-off protection, etc. The multi-parameter water quality detector with waterproof, dustproof, power-off protection and other functions can adapt to various test environments and has higher safety. 5. Parameters such as measurement range and precision The parameters such as measurement range, instrument precision and accuracy must also be considered. Combined with your needs, the data requirements in this area can refer to the standards of individual COD, ammonia nitrogen, total phosphorus, and total nitrogen analyzers.
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