Understand the purchasing requirements of laser particle size analyzer

(2) According to the properties of the tested sample, determine whether to purchase a dry or wet particle size analyzer: Laser particle size analyzers are divided into dry and wet dispersion methods. If a suitable dispersion medium (water or other liquid) can be found that does not react with the tested sample, it is recommended to use a wet particle size analyzer. The test results are stable and the price is cheap. If the sample has special properties and it is difficult to find a suitable dispersion medium, a dry particle size analyzer is recommended.

(3) Based on the approximate distribution range of the test samples, choose the appropriate instrument model for your sample's testing range: the larger the testing range, the higher the price. Generally speaking, if you choose an instrument slightly wider than the sample distribution range, it is sufficient. Most laser particle size analyzers on the market span 3-4 orders of magnitude, but the sample distribution for most industrial tests is only within one order of magnitude. If the sample distribution range is narrow and an ultra wide range testing range is chosen, it will be like weighing a bean on a scale, which will reduce the degree. Domestic manufacturers have developed products with segmented testing, which can adjust the gear according to the sample situation, to some extent solving this problem.

(4) According to the purpose, choose the type of particle size analyzer: Users should not blindly follow the trend and choose the model. If it is only used for routine product testing in the factory, there is no need to purchase the type of product. Old products often undergo years of improvement, mature structure, stable testing effect, and are cheap in price. For heavy testing tasks, automated intelligent products should be chosen, which can greatly reduce the workload of testers. Most products are prepared for research-oriented customers such as universities or research institutes. These products have a wide distribution range, high precision, complex structure, and are often expensive.