This generic model includes a metal detector. It is considered a safety measure to control hazardous extraneous (metallic) materials that are not controlled by the prerequisite programs (e.g. wear and tear of equipment resulting in metal shavings in the product during the grinding process). If a metal detector is part of the process, the hazards associated with that metal detector should be evaluated and controlled. The manufacturer should realize that the metal detector is only considered a safety measure to the level of the sensitivity of the machine. Below the sensitivity level of the machine, the hazard can no longer be controlled by the metal detector and the facility should determine how the hazard is controlled.