LEAK DETECTION DEVICE AND METHOD FOR CHECKING OBJECTS FOR FLUID TIGHTNESS BY MEANS OF A LEAK DETECTION DEVICE

摘要

A leak detection device has a test chamber (10) which, for evacuation, is connected to an evacuation pump device (14). Moreover, the test chamber (10) is connected by a test gas line (20) to a test gas pump device (18). The test gas pump device (18) is connected, at its main inlet (28), to a test gas detector (30), such that a detection of test gas can take place using the counter-current principle. A valve device (38) is arranged in the test gas line (20). This valve device (38) has a test gas chamber (44) for temporary storage of test gas removed from the test chamber (10).