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Helium and Hydrogen Sniffer Leak Detector

XL3000flex sniffer leak detector is the first device to detect leaks with forming gas (95% nitrogen and 5% hydrogen) as accurately as with helium, with a smallest detectable leak rate of 1 ∙ 10-7 mbar∙l/s for both test gases.

The XL3000flex provides the best flexibility to choose the test gas which is easiest to obtain according to lower cost. In addition, the XL3000flex uses the INFICON High Flow Technology: the device operates with a gas flow of 3000 sccm – the highest gas flow available on the market today. This allows the sniffer tip to be moved over the test piece at some distance and at a higher speed, so even the most inexperienced operators can achieve reliable results with the XL3000flex.

An additional advantage of the high gas flow is that it is the only way to enable reliable robotic sniffer leak testing.


  • INFICON High Flow Technology.
    • enables unmatched measurement certainty – stop missing leaks!
    • finds leaks even in hard to access areas.
    • helps unexperienced operators to reliably locate leaks.
    • creates highest througput testing.
    • is ideally suited for robotic testing – allows for maximum transversal speed even at some distance to the part.
  • Minimize your operating cost – select the tracer gas of your choice!
  • Foolproof handling for manual leak detection process.
    • redundant leak alarms – leaks cannot be overlooked!
    • ergonomically designed sniffer probe with Display – user can concentrate on the sniffing process and monitor the leakage rate simultaneously.
  • Easy integration options for robot applications with Fieldbus Interface.

Typical Applications

  • Manual or automated leak testing for Sub-assembly and midproduction of:
    • Refrigerators
    • Freezers
    • Air conditioners
    • Automotive air conditioners
    • Heating and Ventilation
    • RAC components
    • Automotive components and similar products.

Part Number

Part Number Description
520-200 Sniffer Leak detector XL3000 flex
521-035 Adapter customer sniffer line P3000XL
520-201 Sniffer Leak detector XL3000flexRC


Type XL3000FLEX
minimum detectable leak rate mbar•L/s 2E-7 (low flow)
minimum detectable leak rate mbar•L/s 2E-6 (high flow)
Gas flow SCCM 3000 (high flow)
Power VA 280
Ion source 2 long life yttria-coated iridum filaments
measurable gases Helium, H2
operating voltage 100-120V (ac) 50/60 Hz 230V (ac) 50/60 Hz
response time <1 s
run up time 150 s


12339 Dual Gas Sniffer Cal Leak Helium /H2
520-250 CalMate
521-015 Adapter customer sniffer line P3000XL
521-016 Oil / Water Protection Tip for SL3000XL
521-017 Filter for Oil/Water Protection Tip
521-018 Sniffer tip ST312XL, 120 mm, rigid
521-019 Sniffer tip FT312XL, 120 mm, flexible
521-020 Sniffer tip ST385XL, 385 mm, rigid
521-021 Sniffer tip FT385XL, 385 mm, flexible
521-022 Sniffer tip FT250XL, 250 mm, flexible
521-035 Adapter customer sniffer line P3000XL
560-310 I/O 1000 module
560-315 BM1000 Profibus module
560-316 BM1000 PROFINET IO
560-317 BM1000 DeviceNet
560-318 BM1000 EtherNet/IP(TM)


Part Number Description
12237 Test leak for Helium S-TL4
12322 Cal leak, Forming Gas 5%H2
12339 Dual Gas Sniffer Cal Leak Helium /H2