{"id":1857,"date":"2017-10-31T17:18:27","date_gmt":"2017-10-31T16:18:27","guid":{"rendered":"http:\/\/blog.wika.com\/us\/\/?p=1857"},"modified":"2024-06-10T09:33:57","modified_gmt":"2024-06-10T14:33:57","slug":"accuracy-pressure-sensors-fluid-level-monitoring","status":"publish","type":"post","link":"https:\/\/blog.wika.com\/us\/products\/level-products\/accuracy-pressure-sensors-fluid-level-monitoring\/","title":{"rendered":"Using Pressure Sensors to Monitor Fluid Level"},"content":{"rendered":"<p><strong>Pressure sensors can be used to monitor the fluid level of enclosed vessels. Accurate output signals are key to keeping equipment and\u00a0processes\u00a0operating\u00a0safely and efficiently, especially when working with small tanks and low pressure ranges.<\/strong><\/p>\n<p>When an application already has something \u2013 like an internal float or mixer \u2013 inside its small fluid tank, none of the above technologies are suitable. That\u2019s when a compact pressure sensor is a good option for level measurement.<\/p>\n<h2>How a Pressure Sensor Measures Fluid Level<\/h2>\n\n      <div class=\"wp-caption alignright\" style=\"max-width:358px;\"><img decoding=\"async\" src=\"https:\/\/blog.wika.com\/us\/\/files\/2017\/10\/hydrostatic-level-measurement.png\" \/><p class=\"wp-caption-text\">Hydrostatic level measurement using a pressure sensor<\/p><\/div>\n    \n<p>The pressure measured in a fluid is proportional to the height of the column of fluid above the pressure sensor. Therefore, the fluid level can be calculated using:<\/p>\n<ul>\n<li>The pressure measured in the tank<\/li>\n<li>The known density of the fluid<\/li>\n<\/ul>\n<p><span style=\"font-size: 1rem\">Installed at the tank\u2019s lowest measuring point, the sensor element measures the pressure of the liquid column above it. A rule of\u00a0<\/span>thumb<span style=\"font-size: 1rem\">\u00a0is that 1 meter of water column equals 100 mbar. This is the essence of\u00a0<\/span>hydrostatic level measurement. See this <a href=\"https:\/\/www.youtube.com\/watch?v=T2OPoEod_jM\" rel=\"external\" target=\"_blank\">short video<\/a> for an explanation of\u00a0hydrostatic level measurement using a pressure sensor.<\/p>\n<p>An important consideration when using pressure sensors for level measurement is their <a href=\"https:\/\/blog.wika.com\/us\/\/knowhow\/pressure-sensor-accuracy-3-errors\/\">accuracy<\/a>.<\/p>\n<h2>Importance of Accuracy When Monitoring Fluid Levels<\/h2>\n<p>Accuracy is defined as the difference between the measured value and the actual value. In an enclosed tank, inaccurate pressure readings can result in an inaccurate assessment of the fluid level. If the measured value is lower than actual, the tank could overflow. If it\u2019s higher than actual, a pump could run dry, or a lubricating system could run out of fluid.\u00a0<\/p>\n<p>These situations can result in equipment damage, downtimes and delays, alterations to the process \u2013 and all the associated extra expense. The issues are particularly significant for small tanks that work with low pressure ranges. Even small errors can have serious consequences when monitoring fluid levels in equipment such as:<\/p>\n<ul>\n<li>Agricultural spraying truck tanks<\/li>\n<li><a href=\"https:\/\/www.wika.com\/en-us\/lubrication_systems.WIKA\" rel=\"external\" target=\"_blank\">Lubrication<\/a> and <a href=\"https:\/\/www.wika.com\/en-us\/hydraulic_power_packs.WIKA\" rel=\"external\" target=\"_blank\">hydraulic<\/a> system reservoir tanks<\/li>\n<li>Firetruck water and foam tanks<\/li>\n<li>Material handling systems that use low-pressure air to move products<\/li>\n<\/ul>\n<p>There are currently several pressure sensors in the market that work at pressures of 5 psi or lower. To avoid costly problems, however, you must be certain that these devices can maintain accuracy specifications when used at those low pressure ranges. Many do not.<\/p>\n<h2>WIKA\u2019s Answer to Pressure Sensor Accuracy<\/h2>\n\n      <div class=\"wp-caption alignright\" style=\"max-width:233px;\"><img decoding=\"async\" src=\"https:\/\/blog.wika.com\/us\/\/files\/2023\/11\/a-10.png\" \/><p class=\"wp-caption-text\">A-10 pressure transmitter<\/p><\/div>\n    \n<p>A significant feature of the standard A-10 is that it not only offers extremely accurate measurements, but it also maintains standard non-linearity per BFSL (Best Fit Straight Line) of \u2264 \u00b10.5% of span for all pressure ranges \u2013 even for the lowest ones. We can also produce the A-10 with even more stringent accuracy specifications, should your application require that. <span>A free test certificate provides information on the measuring points recorded during manufacturing.<\/span><\/p>\n<p>This high-performance pressure transmitter still has a compact design, a very competitive price, and WIKA\u2019s worldwide support.<\/p>\n<p>When it comes to accurately measuring pressure in machine tools, hydraulics and pneumatics, pumps and compressors, and process control and automation, the A-10 pressure transmitter offers unmatched configurations and optional features for industrial applications. Contact us for expert advice on which pressure or level sensor best fits your needs.<\/p>\n<p><strong>Product mentioned in this article:<br \/>\n<\/strong>\u2022 \u00a0<a href=\"https:\/\/www.wika.com\/en-us\/a_10.WIKA?highlightedText=A-10\" rel=\"external\" target=\"_blank\">A-10 pressure transmitter<\/a><\/p>\n<p>&nbsp;<\/p>\n<p>[contact-form-7 id=&#8221;14552&#8243; title=&#8221;Blog Contact Form&#8221;]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Pressure sensors can be used to monitor the fluid level of enclosed vessels. Accurate output signals are key to keeping equipment and\u00a0processes\u00a0operating\u00a0safely and efficiently, especially when working with small tanks and low pressure ranges. When an application already has something \u2013 like an internal float or mixer \u2013 inside its small fluid tank, none of [&hellip;]<\/p>\n","protected":false},"author":192,"featured_media":17886,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[5,223,220],"tags":[676,799,550,687,979],"class_list":["post-1857","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowhow","category-level-products","category-pressure-products","tag-applications","tag-level-monitoring","tag-pressure","tag-pressure-measurement","tag-pressure-transmitter"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Pressure Sensors to Monitor Fluid Level in Tanks - WIKA blog<\/title>\n<meta name=\"description\" content=\"Pressure sensors are used for hydrostatic level measurement in small fluid tanks. Sensor accuracy is key to reliable level monitoring and control.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blog.wika.com\/us\/products\/level-products\/accuracy-pressure-sensors-fluid-level-monitoring\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pressure Sensors to Monitor Fluid Level in Tanks - WIKA blog\" \/>\n<meta property=\"og:description\" content=\"Pressure sensors are used for hydrostatic level measurement in small fluid tanks. Sensor accuracy is key to reliable level monitoring and control.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/blog.wika.com\/us\/products\/level-products\/accuracy-pressure-sensors-fluid-level-monitoring\/\" \/>\n<meta property=\"og:site_name\" content=\"WIKA blog\" \/>\n<meta property=\"og:image\" content=\"https:\/\/blog.wika.com\/us\/files\/2017\/10\/hydrostatic-level-measurement-1.png\" \/>\n\t<meta property=\"og:image:width\" content=\"838\" \/>\n\t<meta property=\"og:image:height\" content=\"470\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Robert Lukat\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Robert Lukat\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/blog.wika.com\/us\/products\/level-products\/accuracy-pressure-sensors-fluid-level-monitoring\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/blog.wika.com\/us\/products\/level-products\/accuracy-pressure-sensors-fluid-level-monitoring\/\"},\"author\":{\"name\":\"Robert Lukat\",\"@id\":\"https:\/\/blog.wika.com\/us\/#\/schema\/person\/656b45d0e64f9181db7c877139e77f0c\"},\"headline\":\"Using Pressure Sensors to Monitor Fluid Level\",\"datePublished\":\"2017-10-31T16:18:27+00:00\",\"dateModified\":\"2024-06-10T14:33:57+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/blog.wika.com\/us\/products\/level-products\/accuracy-pressure-sensors-fluid-level-monitoring\/\"},\"wordCount\":567,\"commentCount\":0,\"image\":{\"@id\":\"https:\/\/blog.wika.com\/us\/products\/level-products\/accuracy-pressure-sensors-fluid-level-monitoring\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/blog.wika.com\/us\/files\/2017\/10\/hydrostatic-level-measurement-1.png\",\"keywords\":[\"applications\",\"level monitoring\",\"pressure\",\"pressure measurement\",\"pressure transmitter\"],\"articleSection\":[\"Know-how\",\"Level\",\"Pressure\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/blog.wika.com\/us\/products\/level-products\/accuracy-pressure-sensors-fluid-level-monitoring\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/blog.wika.com\/us\/products\/level-products\/accuracy-pressure-sensors-fluid-level-monitoring\/\",\"url\":\"https:\/\/blog.wika.com\/us\/products\/level-products\/accuracy-pressure-sensors-fluid-level-monitoring\/\",\"name\":\"Pressure Sensors to Monitor Fluid Level in Tanks - WIKA blog\",\"isPartOf\":{\"@id\":\"https:\/\/blog.wika.com\/us\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/blog.wika.com\/us\/products\/level-products\/accuracy-pressure-sensors-fluid-level-monitoring\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/blog.wika.com\/us\/products\/level-products\/accuracy-pressure-sensors-fluid-level-monitoring\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/blog.wika.com\/us\/files\/2017\/10\/hydrostatic-level-measurement-1.png\",\"datePublished\":\"2017-10-31T16:18:27+00:00\",\"dateModified\":\"2024-06-10T14:33:57+00:00\",\"author\":{\"@id\":\"https:\/\/blog.wika.com\/us\/#\/schema\/person\/656b45d0e64f9181db7c877139e77f0c\"},\"description\":\"Pressure sensors are used for hydrostatic level measurement in small fluid tanks. 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