\iBJE\t Elektronik Accurate Online Measuring of Material Moisture Moisture plays an important role in determining product quality or as a pro- cess parameter during the processing of food and feedstuffs, chemical, phar- maceutical and mineral substances etc. High measuring Whereas conventional lab-based moisture measuring methods such as drying throughput balances, drying kilns or Karl Fischer titration will return accurate results if handled correctly, they will, however, take at least a couple of minutes or, with some products, several hours before they produce results. These measuring methods are not suitable when a continuous stream of accurate results is re- quired for process or quality control. The microwave resonance method deve- loped by TEWS Elektronik delivers results within a fraction of a second, with the total measuring speed peaking at more than 100 readings per second. This is enough to analyze even quickly flowing products. TEWS Elektronik GmbH & Co. KG ■ Sperberhorst 10 ■ 22459 Hamburg ■ Germany

Insensitive to interference There are various methods of online moisture measuring to choose from. By selecting a suitable measuring system for a certain application, care must, however, taken that the readings will not be corrupted by varying product properties (e.g. density, color, graining, surface drying) or by ambient conditions at the measuring point (dust, different piling heights). On account of the measuring technique applied, TEWS moisture Elektronik measuring systems are designed to be insensitive to such interference. Practical equipment Like the instruments for laboratory use, the...