Patent ID: 9080923
Filing Date: 2015-07-14
Classification: G01M

Abstract:
1. A method for checking the leakproofness of two controllable valves, wherein the valves are disposed at opposite ends of a test volume, wherein an inlet pressure pe is present upstream of the test volume, in front of valve VI, and wherein an outlet pressure pa is present downstream of the test volume, behind valve V 2 , where pe>pa and wherein the pressure in the test volume is equal to pz, wherein a control device triggers the valves for the opening and closing and wherein the control device is coupled with at least two pressure switches which are both in an operative connection with the test volume for the pressure monitoring, wherein: setting the first pressure switch to a first triggering threshold d setting the second pressure switch to a second triggering threshold d wherein one of the following two groups of steps is executed with each leakproofness check: first step sequence: second step sequence: indication of the functionality of the valves if no abortion of the process has taken place.