{"id":4223,"date":"2024-04-13T23:36:00","date_gmt":"2024-04-13T15:36:00","guid":{"rendered":"https:\/\/www.sj-gauge.com\/?p=4223"},"modified":"2026-04-20T20:25:55","modified_gmt":"2026-04-20T12:25:55","slug":"pressure-gauge-vacuum-issues","status":"publish","type":"post","link":"https:\/\/www.sj-gauge.com\/ja\/pressure-gauge-vacuum-issues\/","title":{"rendered":"\u306a\u305c\u771f\u7a7a\u8a08\u306f -760 mmHg \u306b\u9054\u3057\u306a\u3044\u306e\u304b\uff1f\u5727\u529b\u8a08\u306b\u3088\u308b\u771f\u7a7a\u6e2c\u5b9a\u306e\u4ed5\u7d44\u307f"},"content":{"rendered":"<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u771f\u7a7a\u8a08\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u5185\u306e\u771f\u7a7a\u30ec\u30d9\u30eb\u3092\u6e2c\u5b9a\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u4e00\u822c\u7684\u306b\u306f\u3001\u5927\u6c17\u5727\u3092\u30bc\u30ed\u70b9\u3068\u3059\u308b\u305f\u3081\u3001\u6d77\u9762\u3067\u306e\u6a19\u6e96\u5927\u6c17\u5727\u4e0b\u3067\u306f\u3001\u771f\u7a7a\u8a08\u306e\u6700\u5927\u6e2c\u5b9a\u5024\u306f-760 mmHg\uff08\u307e\u305f\u306f-76 cmHg\uff09\u7a0b\u5ea6\u3068\u306a\u308a\u3001\u307b\u307c\u5b8c\u5168\u306a\u771f\u7a7a\u72b6\u614b\u3092\u8868\u3057\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u5b9f\u969b\u306b\u4f7f\u7528\u3057\u3066\u307f\u308b\u3068\u3001\u771f\u7a7a\u8a08\u304c-760 mmHg\u306b\u9054\u3057\u306a\u3044\u3053\u3068\u304c\u591a\u3044\u3002\u3053\u308c\u306f\u5fc5\u305a\u3057\u3082\u30b2\u30fc\u30b8\u306e\u4e0d\u826f\u3092\u610f\u5473\u3059\u308b\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u591a\u304f\u306e\u5834\u5408\u3001\u6a5f\u5668\u306e\u72b6\u614b\u3084\u8a2d\u7f6e\u65b9\u6cd5\u3001\u3042\u308b\u3044\u306f\u5468\u56f2\u306e\u74b0\u5883\u306b\u95a2\u4fc2\u3057\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u6700\u3082\u591a\u3044\u539f\u56e0\u3092\u3044\u304f\u3064\u304b\u6319\u3052\u3066\u307f\u307e\u3059\u3002<\/p>\n<\/blockquote>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u76ee\u6b21<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"\u76ee\u6b21\u306e\u8868\u793a\/\u975e\u8868\u793a\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">\u30c8\u30b0\u30eb<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #7b1e1c;color:#7b1e1c\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #7b1e1c;color:#7b1e1c\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.sj-gauge.com\/ja\/pressure-gauge-vacuum-issues\/#1-the-vacuum-gauge-itself-is-faulty\" >1.\u30d0\u30ad\u30e5\u30fc\u30e0\u30b2\u30fc\u30b8\u81ea\u4f53\u306e\u6545\u969c<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.sj-gauge.com\/ja\/pressure-gauge-vacuum-issues\/#2-the-piping-or-fittings-are-not-completely-sealed\" >2.\u914d\u7ba1\u307e\u305f\u306f\u7d99\u624b\u304c\u5b8c\u5168\u306b\u5bc6\u9589\u3055\u308c\u3066\u3044\u306a\u3044\u3002<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.sj-gauge.com\/ja\/pressure-gauge-vacuum-issues\/#3-the-vacuum-pump-or-vacuum-motor-has-performance-limitations\" >3.\u771f\u7a7a\u30dd\u30f3\u30d7\u307e\u305f\u306f\u771f\u7a7a\u30e2\u30fc\u30bf\u30fc\u306b\u306f\u6027\u80fd\u9650\u754c\u304c\u3042\u308b\u3002<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.sj-gauge.com\/ja\/pressure-gauge-vacuum-issues\/#4-the-pressure-inside-the-gauge-case-is-not-balanced-with-ambient-pressure\" >4.\u30b2\u30fc\u30b8\u30b1\u30fc\u30b9\u5185\u306e\u5727\u529b\u304c\u5468\u56f2\u5727\u529b\u3068\u91e3\u308a\u5408\u3063\u3066\u3044\u306a\u3044\u3002<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.sj-gauge.com\/ja\/pressure-gauge-vacuum-issues\/#5-the-effect-of-atmospheric-pressure-and-altitude\" >5.\u6c17\u5727\u3068\u9ad8\u5ea6\u306e\u5f71\u97ff<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.sj-gauge.com\/ja\/pressure-gauge-vacuum-issues\/#conclusion\" >\u7d50\u8ad6<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading has-palette-color-2-color has-text-color has-link-color wp-elements-36f2f2ff83901a7e1dd62cd567f955f8\" id=\"h-1-the-vacuum-gauge-itself-is-faulty\"><span class=\"ez-toc-section\" id=\"1-the-vacuum-gauge-itself-is-faulty\"><\/span>1.\u30d0\u30ad\u30e5\u30fc\u30e0\u30b2\u30fc\u30b8\u81ea\u4f53\u306e\u6545\u969c<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u771f\u7a7a\u8a08\u306f\u6bd4\u8f03\u7684\u7e4a\u7d30\u306a\u8a08\u5668\u3067\u3042\u308a\u3001\u885d\u6483\u306b\u306f\u5f37\u304f\u3042\u308a\u307e\u305b\u3093\u3002\u8f38\u9001\u4e2d\u3001\u8a2d\u7f6e\u4e2d\u3001\u4f7f\u7528\u4e2d\u306b\u3076\u3064\u3051\u305f\u308a\u843d\u3068\u3057\u305f\u308a\u3059\u308b\u3068\u3001\u30bc\u30ed\u306b\u623b\u3089\u306a\u304f\u306a\u3063\u305f\u308a\u3001\u8aad\u307f\u53d6\u308a\u5024\u304c\u4e0d\u6b63\u78ba\u306b\u306a\u3063\u305f\u308a\u3001\u6e2c\u5b9a\u5024\u304c\u305a\u308c\u305f\u308a\u3059\u308b\u306a\u3069\u306e\u554f\u984c\u304c\u767a\u751f\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u305f\u3081\u3001\u771f\u7a7a\u8a08\u304c\u6b63\u3057\u304f\u6a5f\u80fd\u3059\u308b\u3053\u3068\u3092\u51fa\u8377\u524d\u306b\u70b9\u691c\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u307e\u305f\u3001\u8f38\u9001\u4e2d\u3084\u8a2d\u7f6e\u306e\u969b\u306b\u306f\u3001\u885d\u7a81\u306b\u3088\u308b\u640d\u50b7\u3092\u907f\u3051\u308b\u305f\u3081\u3001\u614e\u91cd\u306b\u4fdd\u8b77\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u30b2\u30fc\u30b8\u81ea\u4f53\u304c\u640d\u50b7\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u771f\u7a7a\u30ec\u30d9\u30eb\u304c\u6b63\u5e38\u3067\u3042\u3063\u3066\u3082\u3001\u6b63\u3057\u3044\u8aad\u307f\u53d6\u308a\u5024\u3092\u8868\u793a\u3057\u306a\u3044\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-palette-color-2-color has-text-color has-link-color wp-elements-72f66da7a7e89bf3d305b60db3740c47\" id=\"h-2-the-piping-or-fittings-are-not-completely-sealed\"><span class=\"ez-toc-section\" id=\"2-the-piping-or-fittings-are-not-completely-sealed\"><\/span>2.\u914d\u7ba1\u307e\u305f\u306f\u7d99\u624b\u304c\u5b8c\u5168\u306b\u5bc6\u9589\u3055\u308c\u3066\u3044\u306a\u3044\u3002<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u771f\u7a7a\u6e2c\u5b9a\u306f\u5927\u6c17\u5727\u306e\u5f71\u97ff\u3092\u5927\u304d\u304f\u53d7\u3051\u307e\u3059\u3002\u771f\u7a7a\u30b7\u30b9\u30c6\u30e0\u306b\u307b\u3093\u306e\u308f\u305a\u304b\u3067\u3082\u6f0f\u308c\u304c\u3042\u308a\u3001\u914d\u7ba1\u306b\u7a7a\u6c17\u304c\u5165\u3063\u3066\u3057\u307e\u3046\u3068\u3001\u30b7\u30b9\u30c6\u30e0\u306f\u76ee\u7684\u306e\u771f\u7a7a\u30ec\u30d9\u30eb\u306b\u9054\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u305b\u3093\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u771f\u7a7a\u8a08\u306e\u6700\u5927\u771f\u7a7a\u6e2c\u5b9a\u5024\u306b\u8fd1\u3065\u3051\u305f\u3044\u5834\u5408\u306f\u3001\u771f\u7a7a\u30dd\u30f3\u30d7\u3084\u914d\u7ba1\u304b\u3089\u7d99\u624b\u3084\u771f\u7a7a\u8a08\u81ea\u4f53\u307e\u3067\u3001\u30d7\u30ed\u30bb\u30b9\u5168\u4f53\u304c\u5b8c\u5168\u306b\u5bc6\u9589\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u63a5\u7d9a\u7b87\u6240\u306e\u308f\u305a\u304b\u306a\u30ea\u30fc\u30af\u3067\u3082\u3001\u30b2\u30fc\u30b8\u304c-760 mmHg\u306b\u5230\u9054\u3059\u308b\u306e\u3092\u59a8\u3052\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-palette-color-2-color has-text-color has-link-color wp-elements-8ae3487328c853785c3237935cbb4304\" id=\"h-3-the-vacuum-pump-or-vacuum-motor-has-performance-limitations\"><span class=\"ez-toc-section\" id=\"3-the-vacuum-pump-or-vacuum-motor-has-performance-limitations\"><\/span>3.\u771f\u7a7a\u30dd\u30f3\u30d7\u307e\u305f\u306f\u771f\u7a7a\u30e2\u30fc\u30bf\u30fc\u306b\u306f\u6027\u80fd\u9650\u754c\u304c\u3042\u308b\u3002<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u771f\u7a7a\u30dd\u30f3\u30d7\u306e\u4e2d\u306b\u306f\u3001\u771f\u306e\u7406\u8ad6\u7684\u306a\u5b8c\u5168\u771f\u7a7a\u3067\u306f\u306a\u304f\u3001\u771f\u7a7a\u306b\u8fd1\u3044\u72b6\u614b\u306b\u3057\u304b\u5230\u9054\u3057\u306a\u3044\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u308b\u3082\u306e\u3082\u3042\u308b\u3002\u3055\u3089\u306b\u3001\u30dd\u30f3\u30d7\u304c\u53e4\u304b\u3063\u305f\u308a\u3001\u6469\u8017\u3057\u3066\u3044\u305f\u308a\u3001\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u304c\u4e0d\u5341\u5206\u3060\u3063\u305f\u308a\u3059\u308b\u3068\u3001\u771f\u7a7a\u6027\u80fd\u304c\u6642\u9593\u3068\u3068\u3082\u306b\u4f4e\u4e0b\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u8a00\u3044\u63db\u3048\u308c\u3070\u3001\u30b2\u30fc\u30b8\u304c\u6b63\u5e38\u306b\u4f5c\u52d5\u3057\u3001\u30b7\u30b9\u30c6\u30e0\u306b\u6f0f\u308c\u304c\u306a\u304f\u3066\u3082\u3001\u30dd\u30f3\u30d7\u81ea\u4f53\u304c\u30d5\u30eb\u80fd\u529b\u3092\u767a\u63ee\u3067\u304d\u306a\u3051\u308c\u3070\u3001\u771f\u7a7a\u30ec\u30d9\u30eb\u306f\u7406\u60f3\u5024\u306b\u6e80\u305f\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-palette-color-2-color has-text-color has-link-color wp-elements-67b4bc342eac86e3222a57f36076ca41\" id=\"h-4-the-pressure-inside-the-gauge-case-is-not-balanced-with-ambient-pressure\"><span class=\"ez-toc-section\" id=\"4-the-pressure-inside-the-gauge-case-is-not-balanced-with-ambient-pressure\"><\/span>4.\u30b2\u30fc\u30b8\u30b1\u30fc\u30b9\u5185\u306e\u5727\u529b\u304c\u5468\u56f2\u5727\u529b\u3068\u91e3\u308a\u5408\u3063\u3066\u3044\u306a\u3044\u3002<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u3053\u306e\u554f\u984c\u306f\u3001\u30b2\u30fc\u30b8\u304c\u5e38\u306b-760 mmHg\u306b\u9054\u3059\u308b\u3053\u3068\u3092\u59a8\u3052\u308b\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u4e0d\u6b63\u78ba\u306a\u6e2c\u5b9a\u5024\u3092\u5f15\u304d\u8d77\u3053\u3059\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u30b2\u30fc\u30b8\u30b1\u30fc\u30b9\u5185\u304c\u5bc6\u9589\u3055\u308c\u3001\u5916\u90e8\u74b0\u5883\u3068\u63db\u6c17\u3055\u308c\u3066\u3044\u306a\u3044\u5834\u5408\u3001\u30b1\u30fc\u30b9\u5185\u5727\u304c\u5468\u56f2\u306e\u5927\u6c17\u5727\u3068\u7570\u306a\u308a\u3001\u6e2c\u5b9a\u30bc\u30ed\u70b9\u304c\u305a\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u5834\u5408\u306b\u3088\u3063\u3066\u306f\u3001\u30b2\u30fc\u30b8\u30b1\u30fc\u30b9\u5185\u306e\u6e29\u5ea6\u304c\u4e0a\u6607\u3057\u3001\u7a7a\u6c17\u306e\u5165\u308c\u66ff\u3048\u304c\u306a\u3044\u5834\u5408\u3001\u5185\u5727\u304c\u5916\u5727\u3088\u308a\u308f\u305a\u304b\u306b\u9ad8\u304f\u306a\u308a\u3001\u6307\u91dd\u304c\u30bc\u30ed\u306b\u623b\u3089\u306a\u304b\u3063\u305f\u308a\u3001\u6e2c\u5b9a\u8aa4\u5dee\u306e\u539f\u56e0\u3068\u306a\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306a\u5834\u5408\u3001\u89e3\u6c7a\u7b56\u306f\u901a\u5e38\u7c21\u5358\u3067\u3059\u3002\u5145\u586b\u30d7\u30e9\u30b0\u307e\u305f\u306f\u901a\u6c17\u5b54\u3092\u958b\u3051\u3066\u30b1\u30fc\u30b9\u5185\u306e\u5727\u529b\u3092\u5468\u56f2\u5727\u529b\u3068\u7b49\u3057\u304f\u3057\u3001\u30b2\u30fc\u30b8\u3092\u3088\u308a\u6b63\u78ba\u306b\u6e2c\u5b9a\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-palette-color-2-color has-text-color has-link-color wp-elements-88c9970c20c2b36711b9e6bd3b49b200\" id=\"h-5-the-effect-of-atmospheric-pressure-and-altitude\"><span class=\"ez-toc-section\" id=\"5-the-effect-of-atmospheric-pressure-and-altitude\"><\/span>5.\u6c17\u5727\u3068\u9ad8\u5ea6\u306e\u5f71\u97ff<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u591a\u304f\u306e\u4eba\u306f\u3001\u771f\u7a7a\u8a08\u306f-760 mmHg\u3092\u793a\u3055\u306a\u3051\u308c\u3070\u6b63\u5e38\u3067\u306a\u3044\u3068\u8003\u3048\u3066\u3044\u307e\u3059\u304c\u3001\u5b9f\u306f\u3053\u308c\u306f\u6d77\u9762\u3067\u306e\u6a19\u6e96\u5927\u6c17\u5727\u306b\u57fa\u3065\u3044\u3066\u3044\u307e\u3059\u3002\u6a19\u6e96\u5927\u6c17\u5727\u3068\u306f\u6d77\u9762\u3067\u306e\u7d76\u5bfe\u5727\u306e\u3053\u3068\u3067\u3001\u304a\u3088\u305d760 mmHg\u3067\u3059\u3002\u3057\u304b\u3057\u3001\u771f\u7a7a\u8a08\u306e\u30bc\u30ed\u70b9\u306f\u5468\u56f2\u306e\u6c17\u5727\u3092\u57fa\u6e96\u306b\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u6e2c\u5b9a\u5834\u6240\u306e\u9ad8\u5ea6\u306b\u3088\u3063\u3066\u5909\u5316\u3057\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u9ad8\u5ea6240m\u4ed8\u8fd1\u3067\u306f\u3001\u73fe\u5730\u306e\u6c17\u5727\u304c740 mmHg\u7a0b\u5ea6\u3057\u304b\u306a\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u5834\u5408\u3001\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u5185\u304c\u307b\u307c\u5b8c\u5168\u306a\u771f\u7a7a\u306b\u9054\u3057\u3066\u3044\u3066\u3082\u3001\u771f\u7a7a\u8a08\u306f-760 mmHg\u3067\u306f\u306a\u304f\u3001-740 mmHg\u3057\u304b\u793a\u3055\u306a\u3044\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3064\u307e\u308a\u3001-760 mmHg\u3092\u4e0b\u56de\u308b\u771f\u7a7a\u8a08\u306e\u6570\u5024\u306f\u3001\u5e38\u306b\u6a5f\u5668\u6545\u969c\u306e\u5146\u5019\u3068\u3044\u3046\u308f\u3051\u3067\u306f\u306a\u304f\u3001\u5358\u306b\u305d\u306e\u5730\u57df\u306e\u5927\u6c17\u6761\u4ef6\u306e\u81ea\u7136\u306a\u5f71\u97ff\u3092\u53cd\u6620\u3057\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-palette-color-2-color has-text-color has-link-color wp-elements-6421794a017bba9c18be30b5cea78077\" id=\"h-conclusion\"><span class=\"ez-toc-section\" id=\"conclusion\"><\/span>\u7d50\u8ad6<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u771f\u7a7a\u8a08\u306f\u7e4a\u7d30\u306a\u6e2c\u5b9a\u5668\u3067\u3042\u308a\u3001\u771f\u7a7a\u8a08\u81ea\u4f53\u306e\u72b6\u614b\u3001\u914d\u7ba1\u30b7\u30b9\u30c6\u30e0\u306e\u30b7\u30fc\u30eb\u6027\u80fd\u3001\u771f\u7a7a\u30dd\u30f3\u30d7\u306e\u80fd\u529b\u3001\u771f\u7a7a\u8a08\u30b1\u30fc\u30b9\u5185\u306e\u5727\u529b\u30d0\u30e9\u30f3\u30b9\u3001\u9ad8\u5ea6\u306b\u3088\u308b\u6c17\u5727\u306e\u5909\u5316\u306a\u3069\u3001\u591a\u304f\u306e\u5916\u7684\u8981\u56e0\u306e\u5f71\u97ff\u3092\u53d7\u3051\u307e\u3059\u3002\u5f93\u3063\u3066\u3001\u771f\u7a7a\u8a08\u304c-760 mmHg\u306b\u9054\u3057\u306a\u3044\u5834\u5408\u3001\u81ea\u52d5\u7684\u306b\u771f\u7a7a\u8a08\u306e\u4e0d\u826f\u3068\u5224\u65ad\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002\u771f\u7a7a\u8a08\u3092\u4f55\u5ea6\u3082\u4ea4\u63db\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u307e\u305a\u4e0a\u8a18\u306e\u3088\u3046\u306a\u53ef\u80fd\u6027\u306e\u3042\u308b\u539f\u56e0\u3092\u30c1\u30a7\u30c3\u30af\u3057\u3001\u771f\u306e\u554f\u984c\u3092\u7279\u5b9a\u3059\u308b\u3053\u3068\u304c\u3001\u7121\u99c4\u306a\u6642\u9593\u3068\u30b3\u30b9\u30c8\u3092\u7701\u304f\u3053\u3068\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002<br><\/p>","protected":false},"excerpt":{"rendered":"<p>A vacuum gauge is used to measure the vacuum level inside a system. In general, atmospheric pressure is taken as the reference zero point, so under standard atmospheric pressure at sea level, the maximum reading of a vacuum gauge is about -760 mmHg (or -76 cmHg), which represents a near-perfect vacuum condition. However, in actual use, many people find that the vacuum gauge often cannot reach -760 mmHg. This does not necessarily mean the gauge is defective. In many cases, it may be related to the condition of the equipment, the installation, or even the surrounding environment. Below are some of the most common reasons. 1. The Vacuum Gauge Itself [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":4309,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[61],"tags":[71],"class_list":["post-4223","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge","tag-pressure"],"blocksy_meta":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.7 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Why Can\u2019t a Vacuum Gauge Reach -760 mmHg? Causes &amp; Solutions\uff5cSJ Gauge<\/title>\n<meta name=\"description\" content=\"A vacuum gauge should reach -760 mmHg under ideal conditions, but in real applications, it often falls short. Learn the common causes such as leaks, faulty gauges, and system limitations, and how to improve vacuum performance.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.sj-gauge.com\/ja\/pressure-gauge-vacuum-issues\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Why Can`t a Vacuum Gauge Reach -760 mmHg? How Does a Pressure Gauge Measure Vacuum?\" \/>\n<meta property=\"og:description\" content=\"A vacuum gauge should reach -760 mmHg under ideal conditions, but in real applications, it often falls short. 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