Scroll vacuum pumps, or dry pumps, are mainly used in vacuum systems requiring a clean condition, free of oil vapor contamination from normal oil-sealed pumps like rotary vane pumps. Scroll vacuum pumps have one or two stages of orbiting plates, compressing gases to the center of the plates and sucking the molecules out. The video …
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Hipace is Pfeiffer’s most recent set of turbo pumps. It features a high compression ratio, low ultimate vacuum, and high rough vacuum (you can start it when < 2400Pa!). I purchased two broken Hipace80, one with a good controller and flange, and one with a good blade and bearing but defective flange. I hope to …
MPG400 is a member of full range vacuum gauge (gauge that can measure both low vacuum and high vacuum). It applies a Pirani detector for low vacuum (>1Pa) and a cold cathode for high vacuum (<1Pa). Here are two very good videos for how Pirani gauge and cold cathode gauge work. The electronics is separated. …
