MC-Balance User Manual 4.0.UK.00

7.10 Filling the hopper.MANUAL FILLINGThe controller automatically detects when the hopper is manual filled.In the period that the hopper is being filled, the MC-Balance is dosing with a fixed RPM, this meansthe unit runs temporarily volumetric. As soon as the hopper filling is ready, the MC-Balanceimmediately continues to work gravimetric.AUTOMATIC FILLINGi Only use Movacolor hopper loaders to fill the hopper automatically.Foreign hopper loaders can influence the gravimetric function of the dosing.IntroductionMovacolor dosing units are capable of handling a variety of dry materials. Two different fillingsystems are available depending on the material properties.-The Movacolor Ejector (ME) system for dust-free or nearly dust-free materials-The Movacolor Vacuum (MV) system for materials that are NOT entirely dust free.-The Support frame for external / foreign hopper loaders (EX)The ME and MV systems are both driven by low-pressure compressed air and mounted directly ontop of the hopper lid of the Movacolor dosing unit. The MC-Balance controls the operation of theME or MV systems.All parts are aluminum or stainless steel and are virtually maintenance-free. Only the filter needs tobe cleaned periodically. To increase reliability and safety, there are no moving parts except for thepneumatic operated closing valve of the MV system.How the ME worksThe ME system blows the material from the bag, drum orcontainer into the hopper of the dosing unit. The hopper lid of thehousing has a simple and easy-to-clean dust filter to keep anydust particles in the hopper.The system is triggered by the filling start weight(CONFIGURATIONS ). This parameter also generates alow-level alarm if the hopper is empty.ME hopper loaderHow the MV worksThe MV system uses a 3-stage vacuum generator driven bycompressed air to create a vacuum that draws material into achamber that closes. Once the chamber is filled with material, thecone that closes the chamber will open and the material will bedischarged into the hopper.The system is equipped with a superior filter to ensure that thefinest particles (> 5micron) stay in the system and are notreleased into the atmosphere. This makes the MV system themost practical and user-friendly system for both powders andgranules.MV hopper loader29MC-Balance manual