GKA 75 08 Perforation Detector, is used to detect the perforation on any material in packaging industry. It is especially used in bag making machinery to count the bag numbers by detecting and reporting the perforation. Its detection capacity is 900 pcs/min. Output voltage can be adjusted between 6kV-21kV by rotating and fixing the knob on the front panel. The leds on the front panel show the high voltage level. If a perforation is detected, the count led flashes. The high voltage bar is connected to the output of the equipment and it is mounted above the web facing an earth potential. If a spark occurs from the high voltage bar to the earth via a perforation, the detector will report it by a 30msn opto coupler pulse output.