Abstract: Systems and methods include testing the weight and water activity of a product at different times and using those measurements to track changes in the water content/water weight and non-water content/non-water weight in the product. These can be useful to detect anomalous activities or batches of processed product, such as when portions of a product are being stolen or improperly altered or wasted. Plant operators can track properties of a product as the product undergoes processing to detect stages and areas in which problems occur and can thereby improve plant and operator efficiency.

Abstract: An electronic weighing machine for a moisture meter not only measures the amount of moisture in the test sample, but also measures the mass of the test sample itself. In addition, the present invention is related to a heat drying type moisture meter, a filter for the moisture meter and a moisture adsorption unit for the moisture meter. The electronic weighing machine for the moisture meter is used with the moisture meter which is equipped with a heating section for introducing the carrier gas into it and heating the test sample, a moisture adsorption section for adsorbing the vaporized moisture from the carrier gas flowing out of the heating section, and an electronic weighing section for determining the increase in mass of the moisture adsorption section. The electronic weighing section has a test sample weighing section and a section for measuring the mass of the collected vaporized moisture in the weighing arm of the electronic weighing unit.