Helium mass spectrometer leak detector is a mass spectrometer that uses helium as a leak gas analyzer to measure helium leakage. So today we will introduce the application of helium mass spectrometer leak detector in vacuum value verification. Please refer to the following content for details:
Helium is a rare gas that does not corrode equipment, does not undergo chemical changes with vacuum equipment, is non-toxic, does not pollute the environment, and is very safe to use. It has minimal interference with the container environment and mass spectrometry environment, and is commonly used as a leaking gas.
Gas is sprayed onto the tested container connected to the leak detector (i.e. the gas analyzer adjusted to only react with helium). If there is a leak in the container, the analyzer will make a sound and then understand the location of the leak and the amount of air leakage. Helium mass spectrometry leak detection technology is an indispensable technology in the field of vacuum detection. Due to its high detection efficiency, simplicity, sensitivity of instrument response, high accuracy, and unaffected by other gases, it is widely used in leak detection of resistance furnaces.
Inject helium into a certain pressure, and then use positive pressure testing equipment to test all joints. The leakage record will correspond one-to-one with the foam series number. If the maximum allowable result exceeds the user’s setting, it will be reviewed immediately. Then, the oil-free front pump and turbo molecular pump are installed on the 10 rows of foaming equipment. Through the full control of the software, the external pipeline is vacuumized and kept running. Then the operator uses the external spray to observe all joints. The mass spectrometer system can monitor any helium leakage. After water seepage detection, vacuum and bake the vaporizer.
After the experiment, the mass spectrometer system will actively analyze the gas in the bubble body and connecting tube. To ensure the accuracy of the experimental results, the concentrations of raw water, oxygen, and solvents in all drum packaging machines must be below 1ppm. After the test is completed, the operator should be prompted whether the test results are qualified, and all data testing should be recorded for easy tracking.
The above is a complete introduction to the applications of helium mass spectrometer leak detectors in vacuum degree calibration. If you have any questions, please feel free to contact us~
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