EP3567356

• Inficon GmbHsince Oct 11, 2019; EPO record ends Dec 31, 2021

Sniffing leak detector 10 comprising a handheld device 44 with a sniffer tip probe comprising a sample gas inlet 12, a reference gas inlet 14, a gas analyzer 16, and a switching valve 20 adapted to alternatingly connect the sample gas inlet 12 to the gas analyzer 16 and the reference gas inlet 14 to the gas analyzer 16 in a gas conducting manner, such that either the gas drawn through the sample gas inlet 12 or the gas drawn through the reference gas inlet 14 is analyzed by the gas analyzer 16, characterized in that the reference gas inlet 14 is arranged in a remote distance from the sniffer tip probe and a reference gas conduit 26 connecting the reference gas inlet 14 and the switching valve 20 comprises a buffer chamber 40 adapted to homogeneously mix gas drawn into the buffer chamber 40 through the reference gas inlet 14 with the remaining gas in the buffer chamber 40.