| 摘要 |
A device (10) for checking the tightness of air evacuated packing containers (1), comprising a bell-shaped housing (31) with a distance sensor (20) that is connected to a partial vacuum source (23). The distance sensor (20) and a pressure sensor (25) send their signals (U, P) in the form of input values to a control device (23) which combines both signals (U, P). The control methods which can be implemented with the inventive device (10) make it possible to determine if the packing container (1) is tight and indicate the pressure inside (Pi) in each packing container. |
