Helium or Hydrogen/Nitrogen Mix is injected under pressure into the unit under test (UUT). An integrated leak detector senses the presence of any gas leaking out of the UUT and measures the corresponding leak rate. This test can be performed either in manual or automatic mode.

In order not to contaminate the working environment with large quantities of tracer gas, this test follows a prior Pressure Leak Test aimed to detecting gross leaks.

Product Items

VTech 75, Tracer Gas Sniffing Leak Test System

The VTech 75, Tracer Gas Sniffing Leak Test System combines pressure and tracer gas leak testing in one integrated system, for low-medium productivity operations. It can be configured as follows:

  • Standard configuration with slope top enclosure
  • Integrated safety hood and conveyor system for high pressure testing
  • “Split” system for separating pressure decay and tracer gas sniffing tests.
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  • Technical Data
    Number of parts/testup to 4
    Leak Test Resolution (Helium)1 x 10-7 mbar * l/s
    Leak Test Resolution (Hydrogen)5 x 10-7 mbar * l/s
    User Interface6 or 8″ Color Touch Screen
    ControlPLC
    Unit Presets50 (expandable to 200)
    Maximum working pressure206.8 bar3,000 psig
    Pressure Decay Leak TestYes
    Test TypeAutomatic and Manual
    Tracer GasHelium or Hydrogen/Nitrogen Mix
    Component EvacuationYes
    Leak Location?Yes (with Sniffing Leak Detector)
    ProductivityLow to Medium
  • Options
    Barcode ScanningScan model and serial number
    Data-ManagementRead and write process data
    Stack Light2 or 3 ColorAudio Alarm
  • Support
    Internet Support ReadyRemote Technical Assistance
    Installation & TrainingGuided Project Start-up & Process Education
    Technical AssistanceFree Lifetime Telephone & Email Support
    ManufacturingMade in the USA from primarily commercial components
  • Downloads
Request for Quote

VTech UNO-HE, Tracer Gas Sniffing Leak Test System

The VTech UNO-HE, Tracer Gas Sniffing Leak Test System is designed for leak testing of coils and other components as well as refrigeration and A/C sealed systems in a high production environment. The VTech UNO-HE is fully customizable in terms of test pressure, evacuation, equipment lay-out, and other features in order to meet the most diverse process requirements. For test pressures over 20 bar (290 psig) VTech recommends the use of safety devices (such as protection hoods) for the operator. In a typical cycle, the VTech UNO-H Series performs a Burst Test / Pressure Decay Test, followed by a vacuum cycle and tracer gas filling (Helium or Hydrogen mix) and can include an optional capillary flow test and Helium recovery.

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VTech UNO-HE, Tracer Gas Sniffing Leak Test System
  • Technical Data
    Number of parts/test1 or 2
    Leak Test Resolution (Helium)1 x 10-7 mbar * l/s
    Leak Test Resolution (Hydrogen)5 x 10-7 mbar * l/s
    User Interface12″ Color Touch Screen
    ControlPC
    Unit PresetsVirtually Unlimited
    Maximum working pressure30 bar435 psig
    Pressure Decay Leak TestYes
    Test TypeAutomatic and Manual
    Tracer GasHelium or Hydrogen/Nitrogen Mix
    Component EvacuationYes
    Leak Location?Yes (with Sniffing Leak Detector)
    ProductivityLow to Medium
  • Options
    Barcode ScanningScan model and serial number
    Data-ManagementRecord process data
    Stack Light2 or 3 ColorAudio Alarm
  • Support
    Internet Support ReadyRemote Assistance
    Installation & TrainingGuided Project Start-up & Process Education
    Technical AssistanceLifetime Free Telephone and Email Support
  • Downloads
Request for Quote

MasSpec, Automatic Outside-In Helium Leak Test System

The MasSpec, Automatic Outside-In Helium Leak Test System is an automatic helium leak tester capable of detecting leaks in the range of 5 x 10-6 mbar l/s, equivalent to approx. 0.1 oz. of refrigerant per year, in coils, components or refrigeration systems.

It involves pulling a deep vacuum inside the unit under test (UUT) and introducing low-pressure helium in the surrounding enclosure. Any resulting helium leakage inside the UUT is detected by the attached mass spectrometer. The test result is Pass/Fail. In order to locate the leaking point, a manual sniffer leak detector must be used.

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  • Technical Data
    Number of parts/testCustomizable
    Leak Test Resolution (Helium)1 x 10-6 mbar * l/s
    User Interface8″ Color Touch Screen
    ControlPLC
    Unit Presets50 (Expanable to 200)
    Pressure Decay Leak TestNo
    Test TypeAutomatic
    Tracer GasHelium
    Component EvacuationYes
    Leak Location?No (Sniffing Leak Detector Required)
    ProductivityHigh
  • Options
    Barcode ScanningScan model and serial number
    Data-ManagementRead and write process data
    Stack Light2 or 3 ColorAudio Alarm
  • Support
    Internet Support ReadyRemote Assistance
    Installation & TrainingGuided Project Start-up & Process Education
    Technical AssistanceFree Lifetime Telephone & Email Support
    ManufacturingMade in the USA from primarily commercial components
  • Downloads
Request for Quote

VacuTester, Automatic Helium Leak Test System in Vacuum Chamber

The VTech VacuTester is capable of detecting very small leaks, in the range of 1 x 10-7 mbar l/s, equivalent to 0.03 oz. of refrigerant per year, in coils, components or refrigeration systems. It is particularly suitable for high productivity operations.
It involves pulling a deep vacuum in the chamber containing the unit under test (UUT) and injecting high pressure helium into it. Any resulting helium leakage is detected by the integrated mass spectrometer. The test result is Pass/Fail. In order to locate the leaking point, a manual sniffer leak detector must be used.

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  • Technical Data
    Number of parts/testCustomizable
    Leak Test Resolution (Helium)1 x 10-7 mbar * l/s
    User Interface12″ Color Touch Screen
    ControlPC
    Unit PresetsVirtually Unlimited
    Pressure Decay Leak TestOptional
    Test TypeAutomatic
    Tracer GasHelium
    Component EvacuationNo
    Leak Location?No (Sniffing Leak Detector Required)
    ProductivityHigh
  • Options
    Barcode ScanningScan model and serial number
    Data-ManagementRead and write process data
    Stack Light2 or 3 ColorAudio Alarm
  • Support
    Internet Support ReadyRemote Assistance
    Installation & TrainingGuided Project Start-up & Process Education
    Technical AssistanceFree Lifetime Telephone and Email Support
  • Downloads
Request for Quote