{"id":3964,"date":"2020-04-16T03:04:50","date_gmt":"2020-04-16T03:04:50","guid":{"rendered":"https:\/\/www.cnautotool.com\/blog\/?p=3964"},"modified":"2021-12-28T03:02:55","modified_gmt":"2021-12-28T03:02:55","slug":"whats-the-difference-between-an-absolute-pressure-and-gauge-pressure-using-sensor","status":"publish","type":"post","link":"https:\/\/www.cnautotool.com\/blog\/whats-the-difference-between-an-absolute-pressure-and-gauge-pressure-using-sensor\/","title":{"rendered":"What&#8217;s the difference between an Absolute Pressure and Gauge Pressure (using Sensor)"},"content":{"rendered":"<p><a href=\"https:\/\/www.cnautotool.com\/blog\/2020\/04\/16\/whats-the-difference-between-an-absolute-pressure-and-gauge-pressure-using-sensor\/pressure2\/#main\" rel=\"attachment wp-att-3966\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-3966\" src=\"https:\/\/www.cnautotool.com\/blog\/wp-content\/uploads\/2020\/04\/pressure2.jpg\" alt=\"\" width=\"400\" height=\"301\" srcset=\"https:\/\/www.cnautotool.com\/blog\/wp-content\/uploads\/2020\/04\/pressure2.jpg 400w, https:\/\/www.cnautotool.com\/blog\/wp-content\/uploads\/2020\/04\/pressure2-300x226.jpg 300w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/a><\/p>\n<p>Absolute Pressure is measured relative to a full vacuum (in the empty, air-free space), and uses absolute zero as its reference pressure. Pressure that is measured against Atmospheric Pressure (also known as Barometric Pressure) is called Gauge Pressure.<\/p>\n<p>Average Barometric Pressure (1 ATM) at sea level is ~14.7 Psi (100 Kpa) or 1 Bar.<\/p>\n<p><a href=\"https:\/\/www.cnautotool.com\/blog\/2020\/04\/16\/whats-the-difference-between-an-absolute-pressure-and-gauge-pressure-using-sensor\/pressure1\/#main\" rel=\"attachment wp-att-3965\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-3965\" src=\"https:\/\/www.cnautotool.com\/blog\/wp-content\/uploads\/2020\/04\/pressure1.jpg\" alt=\"\" width=\"400\" height=\"301\" srcset=\"https:\/\/www.cnautotool.com\/blog\/wp-content\/uploads\/2020\/04\/pressure1.jpg 400w, https:\/\/www.cnautotool.com\/blog\/wp-content\/uploads\/2020\/04\/pressure1-300x226.jpg 300w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/a><\/p>\n<p><strong>Read More:<\/strong><br \/>\n<a href=\"https:\/\/www.cnautotool.com\/blog\/2019\/07\/26\/cold-mode-and-no-engine-speed-on-status-flags-caterpillar-et-software\/\">Cold Mode on Status Flags Caterpillar ET Software<\/a><br \/>\n<a href=\"https:\/\/www.cnautotool.com\/blog\/2020\/03\/05\/injection-disabled-on-status-flags-caterpillar-et-software\/\">Injection Disabled on Status Flags Caterpillar ET Software<\/a><\/p>\n<p>As Figure 1.1 and 1.2 above, we can find the Formula for the Absolute Pressure:<br \/>\nAbsolute Pressure = Atmospheric Pressure + Gauge Pressure<\/p>\n<p><strong>#Related Information:<\/strong><br \/>\nAtmospheric (Barometric) Pressure Sensor<br \/>\nThe correct reading for the Atmospheric Pressure Sensor is between 50 kPa (7.3 psi) and 100 kPa (15 psi).<\/p>\n<p><strong>Altitude Derate<\/strong><br \/>\nThe engine may be derated due to high elevation. Use <a href=\"https:\/\/www.cnautotool.com\/goods-333-CAT+Caterpillar+ET+Diagnostic+Tool.html\">CAT ET<\/a> to check for an active Engine Derate on the Status Flags screen.<br \/>\n<strong>Note:<\/strong> There are no event codes that are associated with the Altitude Derate.<\/p>\n<!-- AddThis Advanced Settings generic via filter on the_content --><!-- AddThis Share Buttons generic via filter on the_content -->","protected":false},"excerpt":{"rendered":"<p>Absolute Pressure is measured relative to a full vacuum (in the empty, air-free space), and uses absolute zero as its reference pressure. Pressure that is measured against Atmospheric Pressure (also known as Barometric Pressure) is called Gauge Pressure. Average Barometric&hellip; <a href=\"https:\/\/www.cnautotool.com\/blog\/whats-the-difference-between-an-absolute-pressure-and-gauge-pressure-using-sensor\/\" class=\"more-link\">Continue Reading <span class=\"meta-nav\">&rarr;<\/span><\/a><!-- AddThis Advanced Settings generic via filter on get_the_excerpt --><!-- AddThis Share Buttons generic via filter on get_the_excerpt --><\/p>\n","protected":false},"author":1,"featured_media":3965,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[2036,748],"tags":[103,1197,1033,1035,528,752,751,1195,1196,1199,1165,993,990,1198,1096,1034,1163,1164,447,753,1038,1036,1037],"_links":{"self":[{"href":"https:\/\/www.cnautotool.com\/blog\/wp-json\/wp\/v2\/posts\/3964"}],"collection":[{"href":"https:\/\/www.cnautotool.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.cnautotool.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.cnautotool.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cnautotool.com\/blog\/wp-json\/wp\/v2\/comments?post=3964"}],"version-history":[{"count":2,"href":"https:\/\/www.cnautotool.com\/blog\/wp-json\/wp\/v2\/posts\/3964\/revisions"}],"predecessor-version":[{"id":11287,"href":"https:\/\/www.cnautotool.com\/blog\/wp-json\/wp\/v2\/posts\/3964\/revisions\/11287"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.cnautotool.com\/blog\/wp-json\/wp\/v2\/media\/3965"}],"wp:attachment":[{"href":"https:\/\/www.cnautotool.com\/blog\/wp-json\/wp\/v2\/media?parent=3964"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.cnautotool.com\/blog\/wp-json\/wp\/v2\/categories?post=3964"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cnautotool.com\/blog\/wp-json\/wp\/v2\/tags?post=3964"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}