The Model 1230 Metal detector is engineered for installation on conveyor belts carrying coal, minerals, aggregates and other bulk materials. it can be tuned to ignore conductive or magnetic ores such as magnetite and pyrite, even if they are carried by high tension, steel corded belts with rip detection loops, while still detecting small pieces of tramp metal. the Model 1230 is available in nearly any belt width and can be field adjusted to fit most standard conveyor configurations.