an a/d conveyor in the module produces a digital single proportional to the analog single. when the weight reaches 128 ounces, the value shuts off and a robotic arm places a lid on the can. When an optical sensor detects reflected light from the lid, a motor turns on to rotate the table. An incremental encoder coupled to the table detects that the table has rotated 36 degree, the motor turns off, and a signal is sent to a hydraulic press.