Moisture analyzers

The physical properties of a substance are greatly influenced by the moisture content in it. At various stages of production, the moisture content of the sample can have a very significant impact on the success of the production process and the properties of the resulting product. Moisture analyzer is used to determine the moisture content of a sample. With the help of a moisture meters machine, it is possible to determine the percentage of moisture in the substance, the dry residue of the test sample, the ratio of moisture to dry mass and mass. To determine the moisture content, the so-called thermogravimetric method is used - the mass loss represents the moisture content of the sample. Sophisticated moisture analyzers can have multiple drying profiles, e.g. standard, gentle, stepped or fast. A given drying profile is used depending on the substance being tested, or if the substance is unknown the lab technician does not know what he is dealing with and how the drying process will proceed then he experiments with the assumption that the first mode of the machine used is the one that will make the process as gentle as possible. Preliminary analysis of the sample allows selection of the optimal drying temperature. The drying temperature should be chosen to allow efficient drying of the entire sample and should not allow the outer layer of the sample to clump without allowing the deeper layers to dry. The moisture meters are equipped with easy-to-read LCD or LED screens that display additional messages and information, such as the name of the goods or the tare value. A number of messages can be read on the displays, which provide information about a particular mode of operation. Moisture analyzers can work, as completely separate stand-alone devices, or they can be connected to a computer, and can be operated from it.A moisture meter is basically built from two basic components of a chamber for drying the material and a precise laboratory balance. The drying chamber contains radiant heaters, which are distributed evenly in the chamber and allow efficient drying of the test sample. The drying chamber can be of different sizes, as the sample material on the one hand can be, for example, a soil sample, where the minimum sample weight is not large in volume, but also in the weighing-drying chamber can be tested, for example, elements of film or PP granules, which are very "volumetric" samples. The radiators used in the moisture analyzers are usually halogen radiators or infrared IR radiators. Another integral part of the moisture analyzer is a precise scale, through which the weight loss of the dried material is measured.On the market there are very simple, inexpensive moisture analyzers, but also more sophisticated devices, with the possibility of connecting to a computer or the Internet and sending measurements to the database for further data processing.