{"id":15287,"date":"2020-11-06T14:21:09","date_gmt":"2020-11-06T10:51:09","guid":{"rendered":"https:\/\/vacuumpumps.ir\/?p=15287"},"modified":"2025-08-06T18:45:59","modified_gmt":"2025-08-06T14:15:59","slug":"i-have-been-using-my-low-side-gauge-to-pull-a-vacuum-is-this-wrong","status":"publish","type":"post","link":"https:\/\/asiavacuumpumps.com\/asia\/i-have-been-using-my-low-side-gauge-to-pull-a-vacuum-is-this-wrong\/","title":{"rendered":"I have been using my low side gauge to pull a vacuum, is this wrong?"},"content":{"rendered":"

I have been using my low side gauge to pull a vacuum, is this wrong?<\/h1>\n

YES. The low side gauge knows only atmospheric pressure and cannot sense moisture or non-condensables. A micron gauge is a heat sensing device that not only reads atmospheric pressure, but also measures the gases created by the vacuum pump as it boils the moisture. For example, if you were to pull a vacuum on an enclosed bottle of water, the low side gauge when pulling a vacuum will read a perfect vacuum. Using a micron gauge, it will immediately tell you with a high reading the you have a problem in you system.<\/p>\n

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Yes,\u00a0using only the low-side gauge to pull a vacuum is generally not recommended and can lead to inaccurate readings<\/mark>.\u00a0<\/span>A low-side gauge typically only measures pressures above atmospheric pressure and won’t accurately detect moisture or non-condensable gases, which are crucial to remove during a vacuum.\u00a0<\/span>For proper vacuum measurement, a\u00a0micron gauge\u00a0connected directly to the system, away from the pump and hoses, is recommended,\u00a0according to vacuum pump FAQs from JB Industries.\u00a0<\/span><\/span><\/span><\/p>\n

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Here’s why:<\/span><\/span><\/div>\n<\/div>\n<\/div>\n
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