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Including: Karl Fischer moisture analyzer, Coulomb moisture meter, dew point moisture meter.
Karl Fischer is a classical method, also known as trace moisture analyzer, which is mainly used for the detection of samples with low moisture content. After improvements in recent years, it has greatly improved the accuracy and expanded the measurement range.
The dew-point moisture analyzer 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 gas. However, this method has more interference, and some cold-changeable gases, especially at higher concentrations, will interfere with condensation than water vapor.
Coulomb moisture meters are often used to determine the moisture content of gases. This method is easy to operate, quick to respond, and especially suitable for the determination of trace moisture in gases. If you use ordinary chemical methods, it is very difficult. However, electrolytic methods are not suitable for the determination of alkaline substances or conjugated diolefins.
Coulomb Moisture Analyzer:
Recommended model: KF-8A Coulometric Moisture Analyzer Advantages: Medium price of instrument; Less consumables; Can be measured to 10-6 levels; Short time, the general substance can be completed within 60 seconds under the premise of good injection volume Measurement is the best method for process control and arbitration.
Disadvantages: Due to high accuracy and sensitivity, some substances with side reactions are difficult to measure and require a certain amount of experience to control the reaction direction.
Moisture meter maintenance and maintenance methods:
(Applicable to Coulometric Moisture Analyzer)
I. Installation and location of moisture analyzer:
1, Moisture analyzer may not be installed in a room with corrosive gases, corrosion of the moisture analyzer circuit part, shorten the life of the instrument.
2, where the room temperature is lower than 5 degrees or higher than 40 degrees.
3, can not be installed in places with high sunlight and humidity.
4, can not be installed in places where power is not stable, it is recommended to use electronic regulator.
Electrode maintenance:
1, When the measuring electrode is contaminated, it can be wiped with acetone or absolute ethanol. If it can't be decontaminated, use the alcohol lamp to burn the platinum ball end.
2. When the electrolytic electrode is contaminated, acetone or absolute ethanol can be injected into the cathode chamber and shaken repeatedly to remove the internal dirt.
Physical Analysis Moisture Analyzer:
The MS-100 infrared moisture analyzer and halogen moisture analyzer are simple to operate, consume less time, and have accurate measurement results. Therefore, the infrared moisture analyzer can be widely used in all industries that need to measure moisture quickly, such as medicine, food, feed, seeds and rapeseeds. , Dehydrated vegetables, tobacco, chemicals, tea, food, meat and textiles, agriculture, forestry, paper, rubber, plastics, textiles and other industries in the laboratory and production process. Harbin Yuda Electronic Technology Co., Ltd. produces various kinds of moisture meters, handheld moisture meters, online near-infrared moisture meters, infrared moisture meters, and halogen moisture meters.
Karl Fischer titration moisture analyzer method and operation
Moisture Analyzer Method Analysis and Operation Chemical Analysis Moisture Analyzer: