In the packaging process, it's important that the correct number of chocolates are present in every box in order to meet quality inspections. While this inspection can be done using a traditional vision system, it can also be accomplished with traditional photoelectrics.
Banner sensors are positioned above a conveyor inspecting each passing box for missing chocolates. When a passing box breaks the trigger beam created by a pair of Q12 opposed-mode sensors, an array of QS18AF sensors mounted above the box inspect each location for missing chocolates.
When a box containing the wrong amount of chocolates is detected, an output signal is relayed to a main controller at the packaging line warning of the failed condition.