Description
Varian 938-41 Porta-Test Vacuum Helium Leak Detection System
Varian 938-41 Porta-Test is a portable, high-sensitivity helium mass spectrometer leak detector designed for industrial and scientific vacuum systems. It features a single-handle operation, requires no liquid nitrogen, and uses a Contra-Flow technology to measure leaks from 10-3 to 10-10 atm cc/sec.
- Technology: Employs a diffusion pump (often SD-200 or Stokes 110) and a helium sensing tube.
- Performance: Capable of detecting small leaks without throttling.
- Portability: Designed for easy movement around plants for testing vacuum furnaces, coaters, and electron beam welders.
- Display: Features a 50-segment LED bar graph for reading leak rates.
System power up but not tested any further, cosmetic indication of previous use. Images form part of the description
