METHOD AND DEVICE AT TESTING FOR LEAKS AND LEAKAGE FINDING

The invention relates to a method and an arrangement for the tracing, detection and quantification of a leak (3a) in a object (3) using a tracer gas (4a), by means of which the object (3) is pressurised. In this method use is made of a probe (1) provided with an orifice and connected to suction flow generating arrangement, comprising a sensor (5), which is sensitive to the tracer gas (4a). This is used to detect an increased presence of tracer gas (4a) in connection with the leak (3a). In the tracing, detection and quantification of the orifice (1a) is applied in the immediate vicinity of the leakage site, the escaping tracer gas (4a) reaching the gas-sensitive sensor. The suction flow in the probe can be adjusted in order to select between maximum sensitivity or the facility for most accurate quantification, without this affecting the response time.