Helium leak detectors, also referred to as HLD or mass spectrometers, locate and analyze leaks in systems or devices with helium. Helium is a small, inert, light molecule ideal for use as a tracer gas in the detection of micro leaks, and has the added benefit of being non-toxic, non-condensable and non-flammable. Helium leak detectors are known as the most sensitive leak detection technology on the market because of this, allowing users to quickly locate the leak and determine its magnitude, shortening repair times. They require little training to operate and quantify test results clearly for operators.
Leak testing is performed according to one of two primary methods: pressure testing, which tests “inside out,” and vacuum testing, which tests “outside in.” Vacuum testing is conducted by means of a pumping system or the mass spectrometer itself and consists of administering helium to suspected leak areas. Pressure testing involves pressurizing the EUT with helium, or a helium-based mixture of gases, and then utilizing a sniffer probe connected to the leak detector.
ATEC offers helium leak detector rentals and mass spectrometer rentals for products from leading manufacturers like Agilent, Pfeiffer and Inficon.