Other names of Moisture Meter are also called moisture analyzer, moisture analyzer, fast moisture analyzer, Moisture Meter, moisture Detector, moisture measuring instrument, and moisture analyzer.
Moisture analyzers for chemical analysis include: Karl Fischer moisture analyzers, coulometric Moisture Meters, and dew point Moisture Meters.
The Karl Fischer method is a classic method, also known as a trace moisture analyzer, which is mainly used in the detection of samples with low moisture content. After improvements in recent years, the accuracy has been greatly improved and the measurement range has been expanded.
The dew point Moisture Meter is easy to operate, the instrument is not complicated, and the measured results are generally satisfactory. It is often used for the determination of trace moisture in permanent gases. However, this method has a lot of interference, and some easy-to-cool gases, especially when the concentration is high, will condense before water vapor and cause interference.
Coulometric moisture analyzers are commonly used to measure the moisture contained in gases. This method is easy to operate and responds quickly, and is especially suitable for the determination of trace moisture in gas. If it is determined by general chemical methods, it is very difficult. However, the electrolysis method is not suitable for the determination of alkaline substances or conjugated dienes. Manufacturers include Chengdu Instrument Factory, Jiangsu Jianghuan Company, Daqing Rishang, etc.
Moisture Meter Application
With the development of scientific research and the progress of production technology, the quantitative analysis of moisture has been listed as one of the basic items in the physical and chemical analysis of various substances, as an important quality index of various substances.
According to the different moisture contents in different forms of samples, different requirements for the determination of moisture are put forward. Moisture determination can be the control analysis of industrial production, or the quality certification of industrial and agricultural products; it can measure moisture from tons of products, and it can also use only a few microliters of test solution for moisture analysis in the laboratory; it can be Constant moisture analysis with a water content of a few percent to tens of percent, or trace moisture analysis with a water content of less than one millionth.
The determination methods of these instruments are easy to operate, high in sensitivity and good in reproducibility, and can measure continuously and display data automatically. Foreign moisture analyzers are expensive, which some domestic laboratories and enterprises cannot afford. In recent years, many domestic instrument manufacturers have strengthened the research and practice of moisture analyzers, and achieved very obvious benefits, making the various technologies of domestic moisture analyzers approach the international level, and can meet the needs of general laboratories and enterprise production. The classical moisture analysis method has been gradually replaced by various moisture analysis methods.
Classification and scope of use of Moisture Meter
Moisture analyzers for physical analysis include: infrared moisture analyzers, halogen moisture analyzers, microwave moisture analyzers, needle type, and induction type.
Infrared (halogen) moisture analyzer is easy to operate, less time-consuming, and accurate measurement results, so infrared Moisture Meter can be widely used in all industries that need to quickly determine moisture, such as medicine, food, feed, seeds, rapeseed, dehydrated vegetables, tobacco , Chemicals, tea, food, meat and textiles, laboratories and production processes in agriculture, forestry, paper, rubber, plastics, textiles and other industries. The microwave moisture analyzer uses the microwave field to dry the sample, which accelerates the drying process. It has the advantages of short measurement time, convenient operation and high accuracy. It is suitable for the determination of moisture in petroleum, kerosene and other liquid samples.
The needle Moisture Meter uses the conductivity of the measured object to measure moisture. The higher the moisture content, the greater the corresponding conductivity. The moisture value can be measured by measuring the conductivity of the measured object.
The inductive Moisture Meter is a kind of microwave Moisture Meter. The moisture content is high, the dielectric constant of the measured object is large, and the corresponding equivalent capacitance becomes large. The moisture value can be measured by measuring the equivalent capacitance of the measured object.
Rapid Moisture Meter [Introduction to Instrument]: Rapid Moisture Meter, designed with the principle of thermogravimetry, is a new type of rapid moisture detection instrument. While the moisture analyzer is measuring the weight of the sample, the infrared heating unit and the moisture evaporation channel quickly dry the sample. During the drying process, the Moisture Meter continuously measures and immediately displays the lost moisture content of the sample. After the drying program is completed, the final measured moisture content The value is locked for display. Compared with the international oven heating method, infrared heating can reach the maximum heating power in the shortest time, and the sample is quickly dried at high temperature. The test results are in good agreement with the national standard oven method, and are replaceable, and the detection efficiency is much higher. in the oven method. It only takes a few minutes for a typical sample to complete the determination. The instrument is easy to operate and accurate in testing. The display part adopts a red digital tube, and the indication value is clearly visible. It can display data such as moisture value, sample initial value, final value, measurement time, temperature initial value, final value, etc., and has the ability to communicate with the computer , the printer connection function.
The Moisture Meter can be widely used in all industries that need to quickly measure moisture, such as medicine, grain, feed, seeds, rapeseed, dehydrated vegetables, tobacco, chemical industry, tea, food, meat and textiles, agriculture, forestry, paper, rubber, plastics , Textile and other industries in the laboratory and production process. Halogen Moisture Meter 【Introduction】: Halogen Heating Rapid Moisture Analyzer is a new type of rapid moisture detection instrument. The ring-shaped halogen lamp ensures uniform heating of the sample, easy operation and accurate measurement. While the moisture analyzer is measuring the weight of the sample, the instrument adopts the ring tube halogen heating method to quickly dry the sample. During the drying process, the Moisture Meter continuously measures and immediately displays the lost moisture content of the sample in %. After the drying program is completed, the final measured moisture content The content value is locked and displayed. Compared with the international oven heating method, halogen heating can dry the sample evenly and quickly at high temperature, and the surface of the sample is not easy to be damaged. in the oven method. It only takes a few minutes for a typical sample to complete the determination. The instrument is easy to operate and accurate in testing. The display part adopts a red digital tube, and the indication value is clearly visible. It can display data such as moisture value, sample initial value, final value, measurement time, temperature initial value, final value, etc., and has the ability to communicate with the computer , the printer connection function. The Moisture Meter can be widely used in all industries that need to quickly measure moisture, such as medicine, grain, feed, seeds, rapeseed, dehydrated vegetables, tobacco, chemical industry, tea, food, meat and textiles, agriculture, forestry, paper, rubber, plastics , textile and other industries in the laboratory and production process.
