HVS Leak Detection

Helium Leak Detection Specialists

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Varian 979 Helium Leak Detector


The Varian 979 Helium Mass Spectrometer Leak Detector is an automatic portable leak detector with a multi-flow vacuum system.  It can be used in sniff testing mode and evacuation mode with both standard and high sensitivity.  The Varian 979 can be used with one or two rotary vane primary pumps or dry scroll primary pumps.  Large external primary pumps allow for fast pump down times.  It has a fully automated test cycle control, calibration, background suppression and protection from air-inrush and power failure. 

Leak Detector Industries & Applications:

  • Industrial Process Tools
  • Power Generation
  • High Energy Physics
  • Research & Development
  • Component Manufacturing

Leak Detector Specifications:

Minimum detectable leak (Standard Sensitivity) 5 x 10-10 atm cc/sec helium
Minimum detectable leak (High Sensitivity)  5 x 10-11 atm cc/sec helium 
Maximum Test Port Pressure 1 Primary Pump/2 Primary Pumps 5 Torr/760 Torr
Test Cycle Control Automatic
Weight 50 lbs (22.7 kg) 


Rental Forms & Warranty

Rental Form

Download our leased equipment terms and conditions.


Download our warranty on rebuilt and used leak detectors.

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HVS Leak Detection

Greentown, PA

Ph: 570-676-9417

Fax: 570-676-0544

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Serving the vacuum needs of North America since 1986, we can provide vacuum system solutions anywhere in the world.