Process Instruments MW 4200, MW 4260 and MW 4270
Moisture plays an important role in determining product quality or as a process parameter during the processing of food and feedstuffs, chemical, pharmaceutical and mineral substances etc.
High measuring throughput – Whereas conventional lab-based moisture measuring methods such as drying 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 required for process or quality control. The microwave resonance method developed 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.
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 process measuring instruments are also made with tough industry environments in mind. For example, MW 42XX-series instruments optionally come in a compact housing equipped with a 24V power supply. Variants with special explosion protection are available for use in areas at risk of explosions. All systems feature a complete set of standard interfaces for sensor value output, the transfer of control signals or for communication with control units. MW 42XX-series process measuring systems can operate all sensors from our „Blueline®“ model range.
Touch screen and PC operation – The online measuring instrument MW 4270 has a 10.4” (26,4 cm) color touch screen monitor which displays results at the measuring point itself and allows the operator to change any configuration settings immediately at the instrument. MW 4260 has a LC-display for showing the sensor readings. If settings need to be modified on-site, this can be done using the built-in controls. The capabilities of the instrument can be enhanced by connecting the MW 4260 to a PC and running the software "TEWS Moisture View ©", which is included in the package.
