Rotation switches that can be used with all bulk materials with a density starting from 100g/l (>6 lb/ft³).
The devices can be used with a wide range of materials like powder, granular, lime, styrofoam, molding sand, cement, gypsum, crushed rock, wood chips or saw dust. What is more the switches can be safely used in food industry.
The rotating measuring vane is driven by a brushless synchronous motor. Once the material level reaches the vane, it stops rotating, which is detected by a micro switch to stop the motor and switch the level output. Once the material level begins to fall and the vane is free of material the motor will restart and the vane will rotate again.
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