The Varian 979 Helium Mass Spectrometer Leak Detector is a portable wide range leak detector. It is comprised of a turbomolecular high vacuum pump, spectrometer tube, valve block, leak detector electronics and an operator interface in a rugged housing. It can be used in sniff testing mode and evacuation mode with both standard and high sensitivity.
The Varian 979 is available as a standalone, bench-mount unit or as a single or dual, dry or oil sealed mechanically pumped leak testing station on a cart, using a rotary vane primary pump or dry scroll primary pump. 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.
Varian 979 Helium Leak Detector Features
- Fully automated tuning and calibration
- Touch screen interface
- 50 segment bar graph indicator displays leak rates automatically
- Minimum detectable leak – Standard Sensitivity is 5 · 10-10
- Minimum detectable leak – High Sensitivity is 5 · 10-11
- Response time less than .5 seconds
- Multi-flow mode vacuum system
Varian 979 Helium Leak Detector Applications
- Industrial Process Tools
- Power Generation
- High Energy Physics
- Research & Development
- Component Manufacturing
Varian 979 Helium Leak Detector Specifications
| Agilent Varian | Units | 979 Wet | 979 Dry |
|---|---|---|---|
| Configuration options | – | Bench/Mobile | Bench/Mobile |
| Primary pump type | type | Rotary vane pump | Dry scroll pump |
| Pump | model | DS-302 | TS-320 |
| Min detectable leak – standard | mbar l/s | ≤ 5 · 10-10 | ≤ 5 · 10-10 |
| Min detectable leak – high sensitivity | mbar l/s | ≤ 5 · 10-11 | ≤ 5 · 10-11 |
| Maximum test port pressure | Torr | 5 | 5 |
| Calibration Routine | type | Automatic | Automatic |
| Sensitivity ranges | mbar l/s | 10-5 thru 10-10 | 10-5 thru 10-10 |
| Cycle time | sec | 4 | 4 |
| Operating Temperature | celsius | 12° to 40° | 5° to 40° |
| Weight (stand alone) | kg | 22.7 | 22.7 |
WANT TO SEE OUR CURRENT RENTAL INVENTORY AND RATES?
Download our rental form to learn more about our rental and lease options for leak detectors. See our current rental rates, terms and conditions.
NEED A VACUUM PUMP?
We rent vacuum pumps too. Check out our vacuum pump rental inventory.
For more about our rental services and how to rent a Varian 979.