Radiation-based mass flow measurement with WEIGHTRAC Precise, non-contact throughput measurement of bulk solids WEIGHTRAC is a radiation-based sensor for precise determination of the feed rate of bulk solids. It measures contactlessly with the help of gamma radiation and is ideally suited for mass flow measurement on conveyers. Its frame construction allows simple installation, also as a retrofit. WeighTrac is the radiation-based alternative to mechanical belt weighers: it unfailingly delivers the current flow rate as well as the summed throughput of bulk solids on conveyor belts or in screw conveyors. The radiation-based measuring method detects material flow reliably, even on wide conveyor belts. WeighTrac can also be retroactively installed on existing conveyance systems without great effort. Radiation-based flow rate measurement is based on radiation absorption by layers of bulk solids – these attenuate the gamma radiation in proportion to the quantity and density of the material. WeighTrac calculates the mass throughput from the intensity of the incoming radiation and the speed signal from the tachometer. The well-proven instrument concept plics® in conjunction with WeighTrac makes setting up and operating a flow rate measuring system simple as never before. Setup and commissioning of the system is easily carried out on a PC with the help of DTM/FDT technology supported by intuitive menus and intelligent assistants. This saves the user a lot of time. As an option, the indicating and adjustment module PLICSCOM can be used for on-site indication of the measured value. Caption: Radiation-based mass flow measurement allows continuous, non-contact determination of bulk material quantities and is suitable for many types of conveyance systems – from conveyor belt scales, screw conveyors and chain trough conveyors to steel plate conveyor belts. More information is available at: http://www.vega.com/en/Innovation_PROTRAC_Type-overview_Mass-flow-measurement.htm Author: Roland Bonath Product Manager radiation-based measurement VEGA Grieshaber KG Am Hohenstein 113 77761 Schiltach Germany Phone +49 7836 50-0 Fax +49 7836 50-8415 E-mail press.de@vega.com www.vega.com