{"id":78054,"date":"2025-04-24T09:09:00","date_gmt":"2025-04-24T07:09:00","guid":{"rendered":"https:\/\/essmann.com\/muss-ihr-waagen-pc-geeicht-werden\/"},"modified":"2025-05-21T10:58:56","modified_gmt":"2025-05-21T08:58:56","slug":"muss-ihr-waagen-pc-geeicht-werden","status":"publish","type":"post","link":"https:\/\/essmann.com\/en\/muss-ihr-waagen-pc-geeicht-werden\/","title":{"rendered":"Does your scale PC need to be calibrated? What you should know"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">What to consider when connecting IT systems with legal-for-trade scales<\/h2>\n\n<p>Many companies ask themselves whether a commercially available PC has to be calibrated if it is connected to a scale whose measurement results are used in <strong>business transactions<\/strong>. The short answer is: <strong>No, the PC itself does not have to be calibrated<\/strong> <strong>as long as certain requirements are met<\/strong>! <\/p>\n\n<p>The most important legal basis for this can be found in the <strong>Measurement and Verification Act (MessEG)<\/strong> and the <strong>Measurement and Verification Ordinance (MessEV)<\/strong>.  <\/p>\n\n<h3 class=\"wp-block-heading\">Prerequisite: A weighing indicator that complies with calibration law<\/h3>\n\n<p>With <strong>scales from ESSMANN | Waagen &amp; Automation<\/strong>, the situation is usually clear: the scales that are placed on the market are <strong>already<\/strong> equipped with <strong>a verifiable weighing electronics (weighing indicator).<\/strong> This forms the <strong>heart of the scale<\/strong> and ensures that the measured values are determined in a traceable manner. <\/p>\n\n<p>ESSMANN scales that are to be used for commercial purposes undergo the legally prescribed conformity assessment procedure at the time of purchase. <strong><a href=\"https:\/\/essmann.com\/en\/essmann-manufacturer-calibration\/\" data-type=\"page\" data-id=\"29276\">conformity assessment procedure<\/a><\/strong>. This procedure confirms that the scales meet all <strong>essential requirements for measurement accuracy, measurement stability and testability<\/strong> &#8211; comparable to an initial verification. This means that the scales are <strong>immediately ready for use in business transactions<\/strong>, for example for invoicing by weight.  <\/p>\n\n<h3 class=\"wp-block-heading\">PC as a &#8220;downstream device&#8221; &#8211; what is permitted<\/h3>\n\n<p>After the conformity assessment procedure <strong><a href=\"https:\/\/essmann.com\/en\/essmann-weighing-software-ewp\/\" data-type=\"page\" data-id=\"29650\">further IT components, such as PCs or software solutions<\/a><\/strong>can be connected to the scale for <strong>further processing of the measurement data<\/strong>. These IT units themselves <strong>do not<\/strong> have to be <strong>calibrated<\/strong> &#8211; on condition that the scale or an upstream <strong>data memory that complies with calibration law <\/strong> stores or outputs the measured values unchanged, permanently and verifiably. The weighing values must be <strong>traceable<\/strong> so that they can be verified from a freely programmable data management system.  <\/p>\n\n<p>This is because customers must be able to <strong>clearly see<\/strong> on receipts or invoices that the measured value comes from a <strong>calibrated device.<\/strong>  <\/p>\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"682\" src=\"https:\/\/essmann.com\/wp-content\/uploads\/2024\/04\/20240418_ZAS_MHKW_Darmstadt_Eichung_0485-1024x682.jpg\" alt=\"Weighing software EWP Suite\" class=\"wp-image-31753\" srcset=\"https:\/\/essmann.com\/wp-content\/uploads\/2024\/04\/20240418_ZAS_MHKW_Darmstadt_Eichung_0485-1024x682.jpg 1024w, https:\/\/essmann.com\/wp-content\/uploads\/2024\/04\/20240418_ZAS_MHKW_Darmstadt_Eichung_0485-300x200.jpg 300w, https:\/\/essmann.com\/wp-content\/uploads\/2024\/04\/20240418_ZAS_MHKW_Darmstadt_Eichung_0485-768x512.jpg 768w, https:\/\/essmann.com\/wp-content\/uploads\/2024\/04\/20240418_ZAS_MHKW_Darmstadt_Eichung_0485.jpg 1280w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Weighing software EWP Suite<\/figcaption><\/figure>\n\n<h3 class=\"wp-block-heading\">Caution when processing data: legal certainty requires expertise<\/h3>\n\n<p>Although connecting a PC to a legal-for-trade scale is permitted in principle <strong>, the processing of the measured values in business transactions is subject to strict requirements<\/strong>. It is <strong>not permissible<\/strong> to simply &#8220;somehow&#8221; transfer or process the data. Instead, numerous <strong>criteria relevant to legal metrology<\/strong> must be observed to ensure that the entire system remains legally compliant.  <\/p>\n\n<p>These include, among others:<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>Complete traceability<\/strong> of all relevant weighing processes,<\/li>\n\n\n\n<li>a unique <strong>alibi number (measured value ID)<\/strong>,<\/li>\n\n\n\n<li>the <strong>correct assignment to the time of the measurement (date\/time)<\/strong>,<\/li>\n\n\n\n<li>the <strong>reference to the specific scale<\/strong> (e.g. via serial number or location identifier),<\/li>\n\n\n\n<li>the <strong>immutability of the data<\/strong>,<\/li>\n\n\n\n<li>and, last but not least, <strong>secure, permanently retrievable archiving<\/strong>, e.g. via a certified data storage system.<\/li>\n<\/ul>\n\n<p>These requirements are <strong>so complex<\/strong> that even small errors can lead to <strong>violations of measurement and calibration law<\/strong> &#8211; with corresponding legal and economic risks. <strong>We<\/strong> therefore <strong>strongly advise against<\/strong> implementing the integration independently. <\/p>\n\n<p><strong>Rely on our expertise<\/strong>: The experts at <strong>ESSMANN | Waagen &amp; Automation<\/strong> know exactly what is important &#8211; and ensure that your scales, including PC connection, can be operated <strong>in compliance with calibration law, reliably and efficiently.<\/strong> <\/p>\n\n<h3 class=\"wp-block-heading\">Measure on the safe side with ESSMANN<\/h3>\n\n<p>The combination of a verified scale and a connected PC is therefore <strong>legally permissible<\/strong> if the <strong>interface is properly regulated<\/strong>. With a scale from <strong>ESSMANN | Waagen &amp; Automation<\/strong>, you are ideally prepared &#8211; because it meets <strong>all the technical and legal requirements<\/strong> for a direct start in legal-for-trade applications. <\/p>\n\n<p>Do you have questions about integrating your scales with existing IT systems or selecting suitable software solutions? <strong><a href=\"https:\/\/essmann.com\/en\/essmann-weighing-software-ewp\/\" data-type=\"page\" data-id=\"29650\">software solutions<\/a><\/strong>? Then   <strong>talk to us! Our team of experts <\/strong>  for scale construction, automation and legally compliant data processing will be happy to advise you.  <\/p>\n<div class=\"gb-container gb-container-e06db0fd\"><div class=\"gb-inside-container\">\n<div class=\"gb-grid-wrapper gb-grid-wrapper-3b183dc5\">\n<div class=\"gb-grid-column gb-grid-column-74322eeb\"><div class=\"gb-container gb-container-74322eeb\"><div class=\"gb-inside-container\">\n<div class=\"gb-button-wrapper gb-button-wrapper-4a2269c5\">\n\n<a class=\"gb-button gb-button-1d91d7de gb-button-text button\" href=\"https:\/\/essmann.com\/en\/contact-the-essmann-sales-department\/\">Let us advise you<\/a>\n\n<\/div>\n<\/div><\/div><\/div>\n<\/div>\n<\/div><\/div>\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>What to consider when connecting IT systems with legal-for-trade scales Many companies ask themselves whether a commercially available PC has to be calibrated if it is &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"Does your scale PC need to be calibrated? What you should know\" class=\"read-more button\" href=\"https:\/\/essmann.com\/en\/muss-ihr-waagen-pc-geeicht-werden\/#more-78054\" aria-label=\"Read more about Does your scale PC need to be calibrated? What you should know\">Read more<\/a><\/p>\n","protected":false},"author":7,"featured_media":48405,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"Does a PC have to be calibrated? Use scales with a PC connection with legal certainty! ","_seopress_titles_desc":"Does a PC have to be calibrated if it is connected to a scale? Find out when the connection is permitted and what you need to bear in mind. 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