{"id":11141,"date":"2019-05-23T11:19:48","date_gmt":"2019-05-23T16:19:48","guid":{"rendered":"https:\/\/blog.wika.com\/us\/\/?p=11141"},"modified":"2023-08-22T02:42:09","modified_gmt":"2023-08-22T07:42:09","slug":"when-to-recalibrate-measuring-instrumentation","status":"publish","type":"post","link":"https:\/\/blog.wika.com\/us\/products\/calibration-products\/when-to-recalibrate-measuring-instrumentation\/","title":{"rendered":"When to Recalibrate Measuring Instrumentation"},"content":{"rendered":"<p><strong>All measuring devices lose accuracy over time. Therefore, reliable readings require a regular schedule of calibrations. The particular conditions and needs of each application will determine when it is time to recalibrate a measuring instrument.<span>\u00a0<\/span><\/strong><\/p>\n<p>Time isn\u2019t kind to the human body, nor to measuring instruments. Industrial thermometers, pressure gauges, and other devices are subject to a variety of stresses \u2013 mechanical, chemical, thermal \u2013 which take their toll.<\/p>\n<p>But even though nothing lasts forever, regular tuneups not only can prolong a device\u2019s lifetime, but maintain its high level of performance. Regular checks and<span>\u00a0<\/span><span><a href=\"https:\/\/blog.wika.com\/us\/\/products\/calibration-products\/pressure-gauge-shelf-life-calibration-practices\/\">recalibrations<\/a> <\/span>help industrial plants get the most out of measuring equipment.<\/p>\n<h2><span>When to Recalibrate<\/span><\/h2>\n<p>Accuracy verification and calibration are normally performed on these occasions:<\/p>\n<ul>\n<li>Before installation (factory calibration)<\/li>\n<li>During preventive maintenance<\/li>\n<li>During scheduled shutdowns<\/li>\n<li>Annually during an audit<\/li>\n<\/ul>\n<p>WIKA\u2019s recommendation for a calibration check and re-certification is once every 12 months. However, the frequency for a calibration check of a measuring instrument depends on many factors:<\/p>\n<ol>\n<li><strong> What are the operating conditions of the instrument?<\/strong><\/li>\n<\/ol>\n<p>Is the instrument exposed to significant<span>\u00a0<\/span><span><a href=\"https:\/\/blog.wika.com\/us\/\/products\/temperature-products\/industrial-thermometers-for-high-vibration-applications\/\">shock, pulsation, vibration<\/a><\/span>, and other mechanical stresses? Does it regularly undergo large fluctuations in pressure or temperature? Such conditions can reduce an instrument\u2019s accuracy over time, but more frequent calibrations can mitigate the effects.<span>\u00a0<\/span><\/p>\n<p><strong>2. How important is the process and the parameter been monitored?<\/strong><\/p>\n<p>Is the instrument used in a critical process? In other words, will the entire application suffer if the industrial gauge, indicator, or thermometer does not perform within certain limits? Will plant or product safety be compromised by even small deviations in accuracy? If so, frequent calibrations can prevent problems. The associated downtime and expenses are negligible compared to the errors that could lead to batch contamination, tank leaks, plant explosions, and so forth.<\/p>\n<p>In general, regular instrument calibration will:<\/p>\n<ul>\n<li>Improve product quality.<\/li>\n<li>Increase process safety.<\/li>\n<li>Boost confidence in the measuring device.<\/li>\n<li>Prevent rejects and discards.<\/li>\n<li>Ensure compliance with standards and guidelines.<\/li>\n<\/ul>\n<h2><span>WIKA USA\u2019s Calibrating Capabilities<\/span><\/h2>\n<p>WIKA USA has a full-service,<span>\u00a0<\/span><span>ISO 17025 accredited <\/span>lab that calibrates pressure, temperature, current, voltage, and resistance. We can provide accuracy certificates of compliance, customized calibration test reports, calibration certificates with values listed, and calibration test certificates as per ISO 17025.<\/p>\n<p>Calibration standards can be traced back to the appropriate country national standard, including:<\/p>\n<ul>\n<li><strong>USA\u00a0<\/strong>\u2013 NIST (National Institute for Standards and Technology)<\/li>\n<li><strong>Germany\u00a0<\/strong>\u2013 PTB (Physikalish-Technische Bundestanstalt)<\/li>\n<li><strong>Switzerland\u00a0<\/strong>\u2013 METAS (Swiss Federal Institute of Metrology and Accreditation)<\/li>\n<li><strong>Poland\u00a0<\/strong>\u2013 GUM (Central Office of Measures)<\/li>\n<li><strong>China\u00a0<\/strong>\u2013 National Institute of Metrology<\/li>\n<li><strong>India\u00a0<\/strong>\u2013 NPL (National Physical Laboratory)<\/li>\n<\/ul>\n<p>For extra convenience, WIKA\u2019s<span>\u00a0<\/span><span><a href=\"https:\/\/www.wika.com\/en-us\/calibration_services.WIKA\" rel=\"external\" target=\"_blank\">Calibration and Service Center <\/a><\/span>can perform calibrations at the point of use. We also design fully automated calibration systems for laboratory and production applications, and hold seminars so our customers can learn more about why, when, and how to calibrate instruments.<\/p>\n<p>Contact our product experts for customized advice on how often you should be calibrating your measuring instruments.<\/p>\n<div style=\"width: 100%;float: left\"><a class=\"button white\" style=\"float: right\" href=\"https:\/\/www.wika.com\/en-us\/contact.WIKA\" rel=\"external\" target=\"_blank\"><span>Contact Us<\/span><\/a><\/div>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>All measuring devices lose accuracy over time. Therefore, reliable readings require a regular schedule of calibrations. The particular conditions and needs of each application will determine when it is time to recalibrate a measuring instrument.\u00a0 Time isn\u2019t kind to the human body, nor to measuring instruments. Industrial thermometers, pressure gauges, and other devices are subject [&hellip;]<\/p>\n","protected":false},"author":187,"featured_media":11149,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[222],"tags":[15,467,565],"class_list":["post-11141","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-calibration-products","tag-accuracy","tag-audit","tag-calibration"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>When to Recalibrate Your Measuring Instruments - WIKA blog<\/title>\n<meta name=\"description\" content=\"Measuring instrumentation should be calibrated at regular intervals to ensure accurate readings. 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