{"id":8518,"date":"2018-04-26T10:00:19","date_gmt":"2018-04-26T08:00:19","guid":{"rendered":"https:\/\/blog.wika.com\/en\/?p=8518"},"modified":"2022-11-07T12:52:07","modified_gmt":"2022-11-07T11:52:07","slug":"level-sensors-the-agony-of-choice","status":"publish","type":"post","link":"https:\/\/blog.wika.com\/en\/products\/level-sensors-the-agony-of-choice\/","title":{"rendered":"Level sensors \u2013 the agony of choice?"},"content":{"rendered":"<p><strong>If one is looking for a level sensor, one can be quickly overwhelmed by the huge selection. A level sensor for limit level detection or continuous measurement can be ordered in a variety of technologies and design variants. But how do I find the right level sensor for my application?<br \/>\n<\/strong><\/p>\n<p>If one wants to select a level sensor, the most important selection criterion is the electrical output function. If one wants to monitor a limit in a tank, e.g. dry running (empty) or overfilled (full), then the level sensor should actually be a level switch. However, if it is important to monitor the contents of a tank in detail (e.g. 0 &#8230; 100 % fill level), then one needs continuous measurement (= level sensor).<\/p>\n<p>The distinction between level sensor and level switch automatically leads to the exclusion of many technologies, if one is looking for the most economical solution. Although a level sensor with combined electronics can communicate both an analogue signal and switching signals, a pure level switch is always the cheaper solution, if the application is limit level measurement only.<\/p>\n<h2>The selection of the most suitable measurement technology<\/h2>\n\n      <div class=\"wp-caption alignleft\" style=\"max-width:396px;\"><img decoding=\"async\" src=\"https:\/\/blog.wika.com\/en\/files\/2018\/04\/fuellstand1-388x181.jpg\" alt=\"Level sensor\" \/><p class=\"wp-caption-text\">Continuous measurement with float<\/p><\/div>\n    \n<p>Level sensors typically feature continuous analogue output signals, such as 4 &#8230; 20 mA or 0 &#8230; 10 V, which permit the accurate measurement of level and its variation. The sensors can be based on a variety of measurement technologies such as magnetostriction, reed-chain technology, hydrostatic, ultrasound, radar and many more \u2013 the choice of which varies from manufacturer to manufacturer.<\/p>\n\n      <div class=\"wp-caption alignright\" style=\"max-width:396px;\"><img decoding=\"async\" src=\"https:\/\/blog.wika.com\/en\/files\/2018\/04\/f\u00fcllstand2_-388x156.jpg\" alt=\"Level sensor\" \/><p class=\"wp-caption-text\">Point measurement with optoelectronic level switch<\/p><\/div>\n    \n<p>\u00a0 Level switches in a traditional float switch design offer a mechanical switch contact or, in electronic version, generally a PNP or NPN transistor output. In the field of switches, there are also a variety of measurement technologies such as reed contact technology, optoelectronics, conductivity, vibronic and many more.<\/p>\n<p>Each of these technologies has advantages and disadvantages, as well as complex, application-specific limiting factors such as conductivity, dielectricity, density, contamination, colour, pressure strength, etc. A reliable statement as to which technology is most suitable or can be used in a specific application environment can only be made after thorough assessment and often also a final test in the plant itself under real application parameters.<\/p>\n<p><strong>Note<\/strong><br \/>\nWIKA offers you a very wide selection of level measuring instruments. Further information on <a href=\"https:\/\/www.wika.com\/en-en\/optoelectronic_switches.WIKA\" rel=\"external\" target=\"_blank\">optoelectronic level switches<\/a>, <a href=\"https:\/\/www.wika.com\/en-en\/submersible_pressure_sensors.WIKA\" rel=\"external\" target=\"_blank\">hydrostatic level sensors<\/a>, <a href=\"https:\/\/www.wika.com\/en-en\/float_switches.WIKA\" rel=\"external\" target=\"_blank\">float switches<\/a> and further <a href=\"https:\/\/www.wika.com\/en-en\/level.WIKA\" rel=\"external\" target=\"_blank\">instruments<\/a> can be found on the WIKA website. You can find videos on the <a href=\"https:\/\/www.youtube.com\/playlist?list=PLCpcl-nFgYcrC1WPtsojCS2M_2LNK3wPZ\" rel=\"external\" target=\"_blank\">functionality of the individual measuring principles<\/a> on our YouTube channel. Your <a href=\"https:\/\/www.wika.com\/en-en\/contact.WIKA\" rel=\"external\" target=\"_blank\">contact person<\/a> will be pleased to advise you on the selection of the most appropriate product solution.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>If one is looking for a level sensor, one can be quickly overwhelmed by the huge selection. A level sensor for limit level detection or continuous measurement can be ordered in a variety of technologies and design variants. But how do I find the right level sensor for my application? If one wants to select [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":8523,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[6],"tags":[280,253,255,574,101,276],"class_list":["post-8518","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-products","tag-filling-height","tag-hydrostatic","tag-level-sensor","tag-level-switch","tag-submersible-pressure-transmitter","tag-tank"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Level sensors \u2013 the agony of choice? - WIKA blog<\/title>\n<meta name=\"description\" content=\"This blog article explains how to find the right level sensor for your application.\" \/>\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\/en\/products\/level-sensors-the-agony-of-choice\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Level sensors \u2013 the agony of choice? 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