NDC Infrared Engineering’s improved Powdervision sampling system allows moisture to be measured in powders, granules and flakes flowing in enclosed ducts or gravity fed conveying systems. Powdervision can be used with a wide range of industrial powders, including chemicals, minerals, detergents and ceramics. Designed to work with an NDC 710e NIR moisture or multi-component gauge, it collects samples every few seconds, with measurement values output via digital or analogue connectivity to a PLC or SCADA system for process control.
Powdervision consists of a tube-mounted sampling cup made from 316 stainless steel which slides into a collar that is permanently welded into the appro- priate duct in the process. The device is optically coupled to the 710e NIR gauge via a sapphire window. The cup collects sample as it flows through the duct, allowing moisture and other measurements to be made simultaneously. When the measurement is complete, the cup is emptied using a powerful jet of compressed air and the next sampling sequence begins.
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