Obsolete – Replaced by the FM300A.
Measures very low moisture and moisture in products with other volatiles by a unique “gain on drying” technology.
An integrated micro balance weighs the sample to 0.00001g. The sample is then loaded into a sealed chamber where all volatiles are evaporated. A special carbon filter strips the non-aqueous volatiles from the gas stream. The carrier gas (generally dry nitrogen) then carries the moisture molecules to another cell where the moisture is absorbed by molecular sieve. As the moisture is absorbed, the sieve cell gains weight. This weight is measured and compared with the original mass for a moisture measurement.
Tests are accurate up to two parts per million.