What is the trace gas technique useful for?
Trace gas leak detectors such as the Q196 are very good for locating the site of a leak and quantifying the leak rate. The component to be tested is filled with a ‘trace’ gas, often Sulphur Hexafluoride or Helium. As the gas diffuses through the product it will find any leaks and escape into the surrounding atmosphere. A very sensitive detection element within the instrument monitors the atmosphere for evidence of the trace gas. Positive indications are converted to leak rates and digitally displayed.
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