Moisture content and water activity

The AquaLab 4TE DUO water activity meter uses the dew point method to simultaneously measure moisture content and water activity using the same instrument. Complete comprehensive moisture analysis within 5 minutes, which has significant advantages compared to traditional moisture content analyzers.

Decagon provides comprehensive moisture solutions, including Aqualab moisture activity analyzer, TrueDry CV9 fully automatic multi sample moisture content analyzer, and Aqualab VSA moisture adsorption analyzer.

　　Moisture content and water activity

AquaLab 4TE DUO multifunctional temperature controlled dew point water activity meter

Dew point method for analyzing moisture content

10 times accuracy; Half of the cost

　　Moisture content and water activity

The AquaLab 4TE DUO water activity meter uses the dew point method to measure simultaneously using the same instrument. Complete comprehensive moisture analysis within 5 minutes, which has significant advantages compared to traditional moisture content analyzers.

measurement method

The dew point method does not require the use of chemical reagents or work at high temperatures. Just cover the sample with a lid and wait for it to reach steam equilibrium to read. Inside the instrument, the infrared beam is focused onto a very small mirror surface to accurately measure the dew point temperature of the sample. The dew point temperature is immediately converted into. Because the instrument is lightweight and easy to use, both laboratory technicians and production line operators can accurately measure within 5 minutes.

10 times accuracy

The accuracy may vary with the measured sample. However, for many samples, the dew point temperature method measures moisture content with more than 10 times higher accuracy than traditional moisture meters.

Verifiable accuracy

The standardization of moisture content is a very complex issue. A certain manufacturing enterprise said, 'Although the supplier provided me with the moisture content when sending me the raw materials, this value is completely meaningless. They can give any moisture content they want because there is no reliable standard to measure this value.'.

The dew point method allows you to verify moisture content readings through different verifiable standard solutions. The Aqualab DUO instrument can store the time, date, and user information of each calibration and measurement, including administrator passwords and access permissions, to ensure data integrity.

Half of the operating costs

The accuracy of moisture content measured by dew point method is at the same level as that of Karl Fischer method. Even compared to the drying weight loss method commonly used for measuring moisture content, DUO has lower operating costs. For example, if 20 samples are tested per day, the annual cost for DUO is $1598 (sample cup and standard solution), while the method of drying and weighing requires $4560\\