{"id":14,"date":"2018-08-02T14:20:10","date_gmt":"2018-08-02T12:20:10","guid":{"rendered":"http:\/\/cmp.krohne.com\/calibration\/?page_id=14"},"modified":"2019-02-28T16:17:54","modified_gmt":"2019-02-28T15:17:54","slug":"definitions","status":"publish","type":"page","link":"https:\/\/cmp.krohne.com\/calibration\/definitions\/","title":{"rendered":"Definitions"},"content":{"rendered":"\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-59152-f200e80144b12dc000366f4114b58504\">\n.avia-section.av-59152-f200e80144b12dc000366f4114b58504{\nbackground-color:#f5f6fa;\nbackground-image:unset;\n}\n<\/style>\n<div id='slider_top'  class='avia-section av-59152-f200e80144b12dc000366f4114b58504 main_color avia-section-no-padding avia-no-border-styling  avia-builder-el-0  el_before_av_section  avia-builder-el-first  avia-bg-style-scroll container_wrap fullsize'  ><div class='container av-section-cont-open' ><main  role=\"main\" itemprop=\"mainContentOfPage\"  class='template-page content  av-content-full alpha units'><div class='post-entry post-entry-type-page post-entry-14'><div class='entry-content-wrapper clearfix'>\n<div  class='avia-slideshow av-581t4-784bf7696a25b3464c089325a7730524 avia-slideshow-no scaling av_slideshow avia-slide-slider  avia-builder-el-1  avia-builder-el-no-sibling  av-slideshow-ui av-control-hidden av-no-slider-navigation av-hide-nav-arrows av-slideshow-manual av-loop-once av-loop-manual-endless av-default-height-applied avia-slideshow-1' data-slideshow-options=\"{&quot;animation&quot;:&quot;slide&quot;,&quot;autoplay&quot;:false,&quot;loop_autoplay&quot;:&quot;once&quot;,&quot;interval&quot;:5,&quot;loop_manual&quot;:&quot;manual-endless&quot;,&quot;autoplay_stopper&quot;:false,&quot;noNavigation&quot;:true,&quot;bg_slider&quot;:false,&quot;keep_padding&quot;:false,&quot;hoverpause&quot;:false,&quot;show_slide_delay&quot;:0}\"  itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><ul class='avia-slideshow-inner ' style='padding-bottom: 35.897435897436%;'><li  class='avia-slideshow-slide av-581t4-784bf7696a25b3464c089325a7730524__0  av-single-slide slide-1 slide-odd'><div data-rel='slideshow-1' class='avia-slide-wrap '   ><img decoding=\"async\" class=\"wp-image-333 avia-img-lazy-loading-not-333\"  src=\"https:\/\/cmp.krohne.com\/calibration\/wp-content\/uploads\/sites\/4\/2018\/11\/3-Definitions.jpg\" width=\"1170\" height=\"420\" title='3-Definitions' alt=''  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/cmp.krohne.com\/calibration\/wp-content\/uploads\/sites\/4\/2018\/11\/3-Definitions.jpg 1170w, https:\/\/cmp.krohne.com\/calibration\/wp-content\/uploads\/sites\/4\/2018\/11\/3-Definitions-300x108.jpg 300w, https:\/\/cmp.krohne.com\/calibration\/wp-content\/uploads\/sites\/4\/2018\/11\/3-Definitions-768x276.jpg 768w, https:\/\/cmp.krohne.com\/calibration\/wp-content\/uploads\/sites\/4\/2018\/11\/3-Definitions-1030x370.jpg 1030w, https:\/\/cmp.krohne.com\/calibration\/wp-content\/uploads\/sites\/4\/2018\/11\/3-Definitions-705x253.jpg 705w, https:\/\/cmp.krohne.com\/calibration\/wp-content\/uploads\/sites\/4\/2018\/11\/3-Definitions-450x162.jpg 450w\" sizes=\"(max-width: 1170px) 100vw, 1170px\" \/><\/div><\/li><\/ul><\/div>\n<\/div><\/div><\/main><!-- close content main element --><\/div><\/div><div id='start_headline'  class='avia-section av-541ha-0cea9168a6d3f4d99accb26582d1e9bf main_color avia-section-default avia-no-border-styling  avia-builder-el-2  el_after_av_section  el_before_av_section  avia-bg-style-scroll container_wrap fullsize'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-full alpha units'><div class='post-entry post-entry-type-page post-entry-14'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-51nik-ea09e8268b61cf72148555a7f8d223e0\">\n.flex_column.av-51nik-ea09e8268b61cf72148555a7f8d223e0{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-51nik-ea09e8268b61cf72148555a7f8d223e0 av_one_full  avia-builder-el-3  avia-builder-el-no-sibling  first flex_column_div av-animated-generic bottom-to-top av-zero-column-padding  '     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-jl3nfi5f-45cf2766a0bdc223068515635cfacd7f\">\n#top .av-special-heading.av-jl3nfi5f-45cf2766a0bdc223068515635cfacd7f{\npadding-bottom:0;\ncolor:#000000;\nfont-size:40px;\n}\nbody .av-special-heading.av-jl3nfi5f-45cf2766a0bdc223068515635cfacd7f .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n#top #wrap_all .av-special-heading.av-jl3nfi5f-45cf2766a0bdc223068515635cfacd7f .av-special-heading-tag{\nfont-size:40px;\n}\n.av-special-heading.av-jl3nfi5f-45cf2766a0bdc223068515635cfacd7f .special-heading-inner-border{\nborder-color:#000000;\n}\n.av-special-heading.av-jl3nfi5f-45cf2766a0bdc223068515635cfacd7f .av-subheading{\nfont-size:17px;\n}\n\n@media only screen and (min-width: 480px) and (max-width: 767px){ \n#top #wrap_all .av-special-heading.av-jl3nfi5f-45cf2766a0bdc223068515635cfacd7f .av-special-heading-tag{\nfont-size:0.8em;\n}\n}\n\n@media only screen and (max-width: 479px){ \n#top #wrap_all .av-special-heading.av-jl3nfi5f-45cf2766a0bdc223068515635cfacd7f .av-special-heading-tag{\nfont-size:0.8em;\n}\n}\n<\/style>\n<div  class='av-special-heading av-jl3nfi5f-45cf2766a0bdc223068515635cfacd7f av-special-heading-h1 custom-color-heading blockquote modern-quote  avia-builder-el-4  el_before_av_hr  avia-builder-el-first  av-inherit-size'><h1 class='av-special-heading-tag'  itemprop=\"headline\"  >Definitions<\/h1><div class='av_custom_color av-subheading av-subheading_below'><p>Any error of measurement detected during calibration as a result of repeat measurements is the so-called systematic measurement error. This remains constant as regards the value and the sign, provided the conditions during measurement do not change and it can always be reproduced under the same conditions. In addition to systematic measurement errors there are also random measurement errors. As the word implies, there is nothing &#8220;systematic&#8221; about this kind of error, it occurs randomly.<\/p>\n<\/div><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-4v8fe-9330859866d7924c39771eb9990f0e8a\">\n#top .hr.hr-invisible.av-4v8fe-9330859866d7924c39771eb9990f0e8a{\nheight:30px;\n}\n<\/style>\n<div  class='hr av-4v8fe-9330859866d7924c39771eb9990f0e8a hr-invisible  avia-builder-el-5  el_after_av_heading  avia-builder-el-last '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div><\/p><\/div>\n<\/p>\n<\/div><\/div><\/div><!-- close content main div --><\/div><\/div><div id='av_section_3'  class='avia-section av-4rwig-e2c35ecdfa950e9e4e68c1afb78ce331 main_color avia-section-default avia-no-border-styling  avia-builder-el-6  el_after_av_section  el_before_av_section  avia-bg-style-scroll container_wrap fullsize'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-full alpha units'><div class='post-entry post-entry-type-page post-entry-14'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-4qjwg-a55ddf3c5301e5aeb4c335874d9662ff\">\n.flex_column.av-4qjwg-a55ddf3c5301e5aeb4c335874d9662ff{\nborder-radius:0px 0px 0px 0px;\npadding:0 0 0 38px;\n}\n<\/style>\n<div  class='flex_column av-4qjwg-a55ddf3c5301e5aeb4c335874d9662ff av_one_half  avia-builder-el-7  el_before_av_one_half  avia-builder-el-first  first flex_column_div av-animated-generic bottom-to-top  '     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-13gdq-a4289c8a7d23dfe06e6e11e306516ef6\">\n#top .av-special-heading.av-13gdq-a4289c8a7d23dfe06e6e11e306516ef6{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-13gdq-a4289c8a7d23dfe06e6e11e306516ef6 .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-13gdq-a4289c8a7d23dfe06e6e11e306516ef6 .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-13gdq-a4289c8a7d23dfe06e6e11e306516ef6 av-special-heading-h2 blockquote modern-quote  avia-builder-el-8  el_before_av_textblock  avia-builder-el-first '><h2 class='av-special-heading-tag'  itemprop=\"headline\"  >Systematic and random errors<\/h2><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div><br \/>\n<section  class='av_textblock_section av-4my20-652256a62071118ce7e55a7e57850585 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>Fig 2.1 illustrates the difference between systematic and random measurement error.\u00a0\u00a0If you look at the target on the left, the points (individual values) are evenly distributed around the blue centre, which in this case is defined as the correct value as agreed and the mean is exactly the centre of the target. The blue arrows indicate the random error of the individual values from the mean value. This can also be referred to as a scattering of the points around the mean. In the picture on the right, the same points are all farther from the centre of the target. The resulting systematic error is represented by the orange arrow.<\/p>\n<p>Random measurement errors are caused by such things as reading errors, fluctuations in ambient conditions, unstable process conditions, device characteristics and so on.<\/p>\n<p>Unlike calibration, when <strong>adjusting<\/strong> a device the systematic measurement error is not only determined and documented but also corrected by way of a manual intervention in the device. A familiar example of this is &#8220;setting&#8221; a watch according to the news. When comparing the display on the watch to the reference clock on the television (calibration process), you notice an error. The watch is, for example, five minutes slow (systematic measurement error). Now, although no calibration certificate is issued, you could make a mental note of the error and take that into account each time you look at the watch. However, as a rule this is too much of a hassle for us, and we make the error smaller by resetting the hands on the watch. We have thus adjusted the watch, in other words we have performed a lasting intervention.<\/p>\n<p>Flowmeters are usually calibrated at different flow rates, which can be measured again if necessary. Examples of flowmeter calibration certificates can be found at the end.<\/p>\n<\/div><\/section><\/p><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-4jk9a-ea988722a56d5f4a46c98f965a64d410\">\n.flex_column.av-4jk9a-ea988722a56d5f4a46c98f965a64d410{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 38px;\n}\n<\/style>\n<div  class='flex_column av-4jk9a-ea988722a56d5f4a46c98f965a64d410 av_one_half  avia-builder-el-10  el_after_av_one_half  avia-builder-el-last  flex_column_div av-animated-generic bottom-to-top  '     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-jl3lm9qy-f97249e16f9dc6e60d09778e2c81a1f8\">\n.avia-image-container.av-jl3lm9qy-f97249e16f9dc6e60d09778e2c81a1f8 img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-jl3lm9qy-f97249e16f9dc6e60d09778e2c81a1f8 .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-jl3lm9qy-f97249e16f9dc6e60d09778e2c81a1f8 av-styling- avia-align-center  avia-builder-el-11  el_before_av_textblock  avia-builder-el-first '   itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><a href=\"https:\/\/cmp.krohne.com\/calibration\/wp-content\/uploads\/sites\/4\/2018\/08\/Systematic-and-random-errors.png\" data-srcset=\"https:\/\/cmp.krohne.com\/calibration\/wp-content\/uploads\/sites\/4\/2018\/08\/Systematic-and-random-errors.png 623w, https:\/\/cmp.krohne.com\/calibration\/wp-content\/uploads\/sites\/4\/2018\/08\/Systematic-and-random-errors-300x166.png 300w, https:\/\/cmp.krohne.com\/calibration\/wp-content\/uploads\/sites\/4\/2018\/08\/Systematic-and-random-errors-450x249.png 450w\" data-sizes=\"(max-width: 623px) 100vw, 623px\" class='avia_image'  aria-label='Systematic-and-random-errors'><img decoding=\"async\" class='wp-image-120 avia-img-lazy-loading-not-120 avia_image ' src=\"https:\/\/cmp.krohne.com\/calibration\/wp-content\/uploads\/sites\/4\/2018\/08\/Systematic-and-random-errors.png\" alt='Systematic-and-random-errors' title='Systematic-and-random-errors'  height=\"345\" width=\"623\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/cmp.krohne.com\/calibration\/wp-content\/uploads\/sites\/4\/2018\/08\/Systematic-and-random-errors.png 623w, https:\/\/cmp.krohne.com\/calibration\/wp-content\/uploads\/sites\/4\/2018\/08\/Systematic-and-random-errors-300x166.png 300w, https:\/\/cmp.krohne.com\/calibration\/wp-content\/uploads\/sites\/4\/2018\/08\/Systematic-and-random-errors-450x249.png 450w\" sizes=\"(max-width: 623px) 100vw, 623px\" \/><\/a><\/div><\/div><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-jl3lns6h-60e36897594062547b0ab5ce472f1631\">\n#top .av_textblock_section.av-jl3lns6h-60e36897594062547b0ab5ce472f1631 .avia_textblock{\nfont-size:12px;\n}\n<\/style>\n<section  class='av_textblock_section av-jl3lns6h-60e36897594062547b0ab5ce472f1631 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>Figure 2.1: Systematic and random errors<\/p>\n<\/div><\/section><\/p><\/div>\n\n<\/div><\/div><\/div><!-- close content main div --><\/div><\/div><div id='av_section_4'  class='avia-section av-4rwig-109c741a41c85490012544e753bfbf7c main_color avia-section-default avia-no-shadow  avia-builder-el-13  el_after_av_section  el_before_av_section  avia-bg-style-scroll container_wrap fullsize'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-full alpha units'><div class='post-entry post-entry-type-page post-entry-14'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-4jk9a-e37bb8fd2d2736369042970ac8799ff7\">\n.flex_column.av-4jk9a-e37bb8fd2d2736369042970ac8799ff7{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 38px;\n}\n<\/style>\n<div  class='flex_column av-4jk9a-e37bb8fd2d2736369042970ac8799ff7 av_one_half  avia-builder-el-14  el_before_av_one_half  avia-builder-el-first  first flex_column_div av-animated-generic bottom-to-top  '     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-jl3lm9qy-12ab1658dcae189ed6af63bc6c510cad\">\n.avia-image-container.av-jl3lm9qy-12ab1658dcae189ed6af63bc6c510cad img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-jl3lm9qy-12ab1658dcae189ed6af63bc6c510cad .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-jl3lm9qy-12ab1658dcae189ed6af63bc6c510cad av-styling- avia-align-center  avia-builder-el-15  el_before_av_textblock  avia-builder-el-first '   itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><a href=\"https:\/\/cmp.krohne.com\/calibration\/wp-content\/uploads\/sites\/4\/2018\/08\/Calibration-curve-of-a-flowmeter.png\" data-srcset=\"https:\/\/cmp.krohne.com\/calibration\/wp-content\/uploads\/sites\/4\/2018\/08\/Calibration-curve-of-a-flowmeter.png 844w, https:\/\/cmp.krohne.com\/calibration\/wp-content\/uploads\/sites\/4\/2018\/08\/Calibration-curve-of-a-flowmeter-300x144.png 300w, https:\/\/cmp.krohne.com\/calibration\/wp-content\/uploads\/sites\/4\/2018\/08\/Calibration-curve-of-a-flowmeter-768x368.png 768w, https:\/\/cmp.krohne.com\/calibration\/wp-content\/uploads\/sites\/4\/2018\/08\/Calibration-curve-of-a-flowmeter-705x337.png 705w, https:\/\/cmp.krohne.com\/calibration\/wp-content\/uploads\/sites\/4\/2018\/08\/Calibration-curve-of-a-flowmeter-450x215.png 450w\" data-sizes=\"(max-width: 844px) 100vw, 844px\" class='avia_image'  aria-label='Calibration-curve-of-a-flowmeter'><img decoding=\"async\" class='wp-image-122 avia-img-lazy-loading-not-122 avia_image ' src=\"https:\/\/cmp.krohne.com\/calibration\/wp-content\/uploads\/sites\/4\/2018\/08\/Calibration-curve-of-a-flowmeter.png\" alt='Calibration-curve-of-a-flowmeter' title='Calibration-curve-of-a-flowmeter'  height=\"404\" width=\"844\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/cmp.krohne.com\/calibration\/wp-content\/uploads\/sites\/4\/2018\/08\/Calibration-curve-of-a-flowmeter.png 844w, https:\/\/cmp.krohne.com\/calibration\/wp-content\/uploads\/sites\/4\/2018\/08\/Calibration-curve-of-a-flowmeter-300x144.png 300w, https:\/\/cmp.krohne.com\/calibration\/wp-content\/uploads\/sites\/4\/2018\/08\/Calibration-curve-of-a-flowmeter-768x368.png 768w, https:\/\/cmp.krohne.com\/calibration\/wp-content\/uploads\/sites\/4\/2018\/08\/Calibration-curve-of-a-flowmeter-705x337.png 705w, https:\/\/cmp.krohne.com\/calibration\/wp-content\/uploads\/sites\/4\/2018\/08\/Calibration-curve-of-a-flowmeter-450x215.png 450w\" sizes=\"(max-width: 844px) 100vw, 844px\" \/><\/a><\/div><\/div><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-jl3lns6h-60e36897594062547b0ab5ce472f1631\">\n#top .av_textblock_section.av-jl3lns6h-60e36897594062547b0ab5ce472f1631 .avia_textblock{\nfont-size:12px;\n}\n<\/style>\n<section  class='av_textblock_section av-jl3lns6h-60e36897594062547b0ab5ce472f1631 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>Figure 2.2: Calibration curve of a flowmeter<\/p>\n<\/div><\/section><\/p><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-4qjwg-e07396db00fca3c2e2e00b1945226882\">\n.flex_column.av-4qjwg-e07396db00fca3c2e2e00b1945226882{\nborder-radius:0px 0px 0px 0px;\npadding:0 0 0 38px;\n}\n<\/style>\n<div  class='flex_column av-4qjwg-e07396db00fca3c2e2e00b1945226882 av_one_half  avia-builder-el-17  el_after_av_one_half  avia-builder-el-last  flex_column_div av-animated-generic bottom-to-top  '     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-jl3nnhp1-dbda120f1f3a00137860c4d418bd9e2e\">\n#top .av-special-heading.av-jl3nnhp1-dbda120f1f3a00137860c4d418bd9e2e{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-jl3nnhp1-dbda120f1f3a00137860c4d418bd9e2e .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-jl3nnhp1-dbda120f1f3a00137860c4d418bd9e2e .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-jl3nnhp1-dbda120f1f3a00137860c4d418bd9e2e av-special-heading-h2 blockquote modern-quote  avia-builder-el-18  el_before_av_textblock  avia-builder-el-first '><h2 class='av-special-heading-tag'  itemprop=\"headline\"  >Calibration curve of a flowmeter<\/h2><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div><br \/>\n<section  class='av_textblock_section av-4my20-652256a62071118ce7e55a7e57850585 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>The measurement errors at the different flow rates result in the calibration curve plotted in a table or graph on the calibration certificate, see also pg. 26 ff. In everyday language the calibration curve is also called an error curve. Of course the term calibration curve is not quite right as no intermediate values were measured between the individual points. Using the calibration curve makes it possible to detect to what degree the calibration values fluctuate at the different flow rates; in other words, you can assess the linearity of the flowmeter. The less the individual calibration values deviate from one another overall, the greater the linearity of the measuring device. Calibration values for flowmeters with great linearity across the entire measuring range do not have to be compensated for through corrections within the control centre software of the corresponding application, provided the mean value of the deviations is close enough to zero.<\/p>\n<p>In 1977, calibration laboratories in industrial enterprises, research institutions and technical authorities joined forces to form the Deutschen Kalibrierdienst (DKD) [German calibration service]. The goal was to formally approve the actions of the National Metrology Institute (PhysikalischTechnische Bundesanstalt or PTB), privatise parts of the state duties and responsibilities and thus reduce trade barriers. Accredited DKD laboratories can perform calibrations of measuring devices within the scope of the measurands and measuring ranges determined by the accreditation. The advantage of this is that the measurements can be traced back to the respective measurement standard of a specialist PTB laboratory. The calibration results are documented on a DKD calibration certificate. Today, many DKD laboratories are accredited for a variety of measurement categories including optical, electrical, acoustic, magnetic and dimensional indicators, flow measurements as well as temperature and humidity. Technical committees develop and provide guidelines and manuals for the calibration of the different measurement variables. With the law regarding the accreditation body from 31.07.2009, the DKD accreditation body was transformed with effect from 17.12.2009 into the Deutsche Akkreditierungsstelle GmbH (DAkks) [German Accreditation Body], s.a. <a href=\"http:\/\/www.dakks.de\" target=\"_blank\" rel=\"noopener\">www.dakks.de<\/a><\/p>\n<\/div><\/section><\/p><\/div>\n\n<\/div><\/div><\/div><!-- close content main div --><\/div><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-4rwig-b72f8a319b9cc9e01807250c2e8c8bce\">\n.avia-section.av-4rwig-b72f8a319b9cc9e01807250c2e8c8bce{\nbackground-color:#f8f8f8;\nbackground-image:unset;\n}\n<\/style>\n<div id='av_section_5'  class='avia-section av-4rwig-b72f8a319b9cc9e01807250c2e8c8bce main_color avia-section-default avia-no-border-styling  avia-builder-el-20  el_after_av_section  avia-builder-el-last  avia-bg-style-scroll container_wrap fullsize'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-full alpha units'><div class='post-entry post-entry-type-page post-entry-14'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-4qjwg-622d8aebf768a7777b35522c00da7636\">\n.flex_column.av-4qjwg-622d8aebf768a7777b35522c00da7636{\nborder-radius:0px 0px 0px 0px;\npadding:28px 0 0 38px;\n}\n<\/style>\n<div  class='flex_column av-4qjwg-622d8aebf768a7777b35522c00da7636 av_one_third  avia-builder-el-21  el_before_av_one_third  avia-builder-el-first  first flex_column_div av-animated-generic bottom-to-top  '     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-21i2q-3ef0eb923ed77719ecfbeec257e2082f\">\n#top .av-special-heading.av-21i2q-3ef0eb923ed77719ecfbeec257e2082f{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-21i2q-3ef0eb923ed77719ecfbeec257e2082f .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-21i2q-3ef0eb923ed77719ecfbeec257e2082f .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-21i2q-3ef0eb923ed77719ecfbeec257e2082f av-special-heading-h2 blockquote modern-quote  avia-builder-el-22  el_before_av_textblock  avia-builder-el-first '><h2 class='av-special-heading-tag'  itemprop=\"headline\"  >Influences in practical use<\/h2><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div><br \/>\n<section  class='av_textblock_section av-4my20-652256a62071118ce7e55a7e57850585 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>When you consider the calibration values of a flowmeter, ideally they should not deviate from the measuring values in the application.<\/p>\n<\/div><\/section><br \/>\n<div  class='avia-button-wrap av-jl3l62vm-a81f2e12ae5be5c1f17d227d0d2fb015-wrap avia-button-left  avia-builder-el-24  el_after_av_textblock  avia-builder-el-last '><a href='https:\/\/cmp.krohne.com\/calibration\/influences\/'  class='avia-button av-jl3l62vm-a81f2e12ae5be5c1f17d227d0d2fb015 avia-icon_select-no avia-size-medium avia-position-left avia-color-theme-color'  ><span class='avia_iconbox_title' >Learn more<\/span><\/a><\/div><\/p><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-4qjwg-f0f12ff6653b45a096b1a6a750567541\">\n.flex_column.av-4qjwg-f0f12ff6653b45a096b1a6a750567541{\nborder-radius:0px 0px 0px 0px;\npadding:28px 0 0 38px;\n}\n<\/style>\n<div  class='flex_column av-4qjwg-f0f12ff6653b45a096b1a6a750567541 av_one_third  avia-builder-el-25  el_after_av_one_third  el_before_av_one_third  flex_column_div av-animated-generic bottom-to-top  '     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-1pjze-08cd25d5e185d2e2c5005a6337ee43ad\">\n#top .av-special-heading.av-1pjze-08cd25d5e185d2e2c5005a6337ee43ad{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-1pjze-08cd25d5e185d2e2c5005a6337ee43ad .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-1pjze-08cd25d5e185d2e2c5005a6337ee43ad .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-1pjze-08cd25d5e185d2e2c5005a6337ee43ad av-special-heading-h2 blockquote modern-quote  avia-builder-el-26  el_before_av_textblock  avia-builder-el-first '><h2 class='av-special-heading-tag'  itemprop=\"headline\"  >References and measurement standards<\/h2><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div><br \/>\n<section  class='av_textblock_section av-4my20-652256a62071118ce7e55a7e57850585 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>Calibration usually takes place with the help of a &#8220;more accurate&#8221; measuring device. This device is referred to as the reference, the measurement standard or superior measurement standard.<\/p>\n<\/div><\/section><br \/>\n<div  class='avia-button-wrap av-jl3l62vm-ffab5a69a44ac5bacbead5de0d2b83b3-wrap avia-button-left  avia-builder-el-28  el_after_av_textblock  avia-builder-el-last '><a href='https:\/\/cmp.krohne.com\/calibration\/references\/'  class='avia-button av-jl3l62vm-ffab5a69a44ac5bacbead5de0d2b83b3 avia-icon_select-no avia-size-medium avia-position-left avia-color-theme-color'  ><span class='avia_iconbox_title' >Learn more<\/span><\/a><\/div><\/p><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-4qjwg-f0f12ff6653b45a096b1a6a750567541\">\n.flex_column.av-4qjwg-f0f12ff6653b45a096b1a6a750567541{\nborder-radius:0px 0px 0px 0px;\npadding:28px 0 0 38px;\n}\n<\/style>\n<div  class='flex_column av-4qjwg-f0f12ff6653b45a096b1a6a750567541 av_one_third  avia-builder-el-29  el_after_av_one_third  avia-builder-el-last  flex_column_div av-animated-generic bottom-to-top  '     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-14voy-a20dd865296ee604bed5303706677727\">\n#top .av-special-heading.av-14voy-a20dd865296ee604bed5303706677727{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-14voy-a20dd865296ee604bed5303706677727 .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-14voy-a20dd865296ee604bed5303706677727 .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-14voy-a20dd865296ee604bed5303706677727 av-special-heading-h2 blockquote modern-quote  avia-builder-el-30  el_before_av_textblock  avia-builder-el-first '><h2 class='av-special-heading-tag'  itemprop=\"headline\"  >Calibrations at KROHNE<\/h2><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div><br \/>\n<section  class='av_textblock_section av-4my20-652256a62071118ce7e55a7e57850585 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>KROHNE has calibration options for all kind of measuring devices at different locations worldwide.<\/p>\n<\/div><\/section><br \/>\n<div  class='avia-button-wrap av-jl3l62vm-f86a6613a3c710ca04f0f198baf40fb9-wrap avia-button-left  avia-builder-el-32  el_after_av_textblock  avia-builder-el-last '><a href='https:\/\/cmp.krohne.com\/calibration\/calibrations-at-krohne\/'  class='avia-button av-jl3l62vm-f86a6613a3c710ca04f0f198baf40fb9 avia-icon_select-no avia-size-medium avia-position-left avia-color-theme-color'  ><span class='avia_iconbox_title' >Learn more<\/span><\/a><\/div><\/p><\/div>\n\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-14","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/cmp.krohne.com\/calibration\/wp-json\/wp\/v2\/pages\/14","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cmp.krohne.com\/calibration\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/cmp.krohne.com\/calibration\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/cmp.krohne.com\/calibration\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/cmp.krohne.com\/calibration\/wp-json\/wp\/v2\/comments?post=14"}],"version-history":[{"count":6,"href":"https:\/\/cmp.krohne.com\/calibration\/wp-json\/wp\/v2\/pages\/14\/revisions"}],"predecessor-version":[{"id":475,"href":"https:\/\/cmp.krohne.com\/calibration\/wp-json\/wp\/v2\/pages\/14\/revisions\/475"}],"wp:attachment":[{"href":"https:\/\/cmp.krohne.com\/calibration\/wp-json\/wp\/v2\/media?parent=14"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}