Spark detection systems are primarily used as a fire prevention method in dust collectors and pneumatic conveying systems by detecting and extinguishing sparks and embers. When working materials, sparks are created very quickly. A dull tool, a damaged fan bearing, an over heated motor, or a foreign object within the material can be the cause. This is a constant danger for all facilities where combustible materials are being worked, exhausted, transported, filtered or dried. The damage statistics provided by insurance companies point out that filters, dust collection bins, silos and even complete production lines are the areas at greatest risk. Foreign objects in the conveyed material, defective parts of production machinery, friction processes as well as electric sparks are all identified as fire generating.