Some common methods for helium leak testing a vacuum system include:
1. Mass Spectrometer Leak Detector (MSLD):
This method uses a mass spectrometer to detect helium ions escaping from the system, enabling precise detection and localization of leaks.
2. Sniffer Probe:
A sniffer probe with a helium-sensitive sensor is used to locate leaks by detecting the helium gas leaking out of the system.
3. Helium Spray Probe:
Helium is sprayed onto the surface of the vacuum system, and a sniffer probe is used to detect any helium escaping from leaking areas.
4. Vacuum Chamber Method:
The vacuum chamber is pressurized with helium, and the system is checked for leaks by monitoring the pressure decay or by using a sniffer probe.
5. Bubble Test:
A solution containing a helium-sensitive indicator is applied to the suspected leak areas, and any escaping helium causes bubbles to form, allowing detection of leaks.
It’s important to consult specific guidelines and industry standards to determine the most suitable method for your particular vacuum system. Contact US