Patent ID: 7240536

Claim:
A test-gas leak detector comprising: a connection for a device under test, a sniffer, or a leak detector chamber, a high-vacuum pump, a test-gas detector that is connected on an intake side of said pump, a test-gas conduit leading from the connection of the leak detector, said test-gas conduit being connected to at least one intermediate stage of the high-vacuum pump in addition to a pre-vacuum zone of the high-vacuum pump via conduit sections and valves, a housing, in which at least some of the conduits and valves and the high-vacuum pump are integrated, forms part of the leak detector, a forevacuum pump integrated in the housing, and a detachable slide-in module forms part of the high-vacuum pump, the slide-in module having an external jacket construction including passages and, when the leak detector is operational, is situated in a receiving opening that is provided in the housing.