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Communications Technology of Weighing Instruments

Working Group 1.14


Working group 1.14 „Communications Technology of Weighing Instruments“  works at the interface between
Opens internal link in current windowinformation technology and Opens internal link in current windowweighing technology. It is concerned with metrological software for weighing instruments, modules and peripheral devices. Existing and partialy superordinated regulations are interpreted and apllied but also developed further by work in the respective committees.
Besides work in the field of legal metrology, the woking group is engaged in research and development concerning weighing technology and beyond.

>> Software-Workshop für Waagen (verschoben) <<

Auf Grund der aktuellen Lage, wird der Workshop nicht wie geplant stattfinden. Bei Interesse an einer späteren Teilnahme, kontaktieren Sie uns über Opens window for sending emailwaagen(at)ptb.de.

Am 26. Mai 2020 findet in der PTB Braunschweig ein Software-Workshop statt. Er richtet sich an Entwickler von Software für Waagen und Waagenmodule. Weitere Informationen zu den Inhalten und das Anmeldeformular finden sie hier: Initiates file downloadEinladung & Anmeldefomular.

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Project AWICal

The aim of the project is to develop a harmonized European method for the calibration of automatic weighing instruments. While for non-automatic weighing a guideline for calibration exists (Euramet guide CG-18) for many years, there is not something similar for automatic weighing instruments currently.
The AWICal project started in June 2015 and will be completed within 3 years. The project was initiated by the Slovenian National Metrology Institute MIRS. Beside PTB project partners are the Austrian National Metrology Institute BEV with the test office PTP, the National Metrology Institutes of Czech Republic (CMI), Poland (GUM), Bosnia and Herzegovina (IMBiH), Estonia (Metrosert), Serbia (MoE) and Turkey (TUBITAK). Furthermore the company of Mettler-Toledo participates as a manufacturer of automatic weighing instruments.

Three types of automatic weighing instruments will be examined: automatic checkweighers, automatic gravimetric filling instruments and automatic weighing instruments for weighing road vehicles in motion.

The project is divided in the following working fields:

  • Develop and validate calibration methods for the selected types of automatic weighing instruments
  • Determine influence quantities and possible errors for dynamic weighing
  • Develop and validate measurement uncertainty budgets
  • Develop drafts of calibration guides for the selected 3 types of automatic weighing instruments

To check the reproducibility of the developed measurement methods and to validate the uncertainty budget there will be comparisons between the measurements of the project partners.

Especially in the measurements PTB will bring in their experience in the testing of automatic weighing instruments

You can find further information on the project on its web page Opens external link in new windowwww.awical.eu.

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  • Consultations regarding software for weighing instruments, modules and peripheral device
  • Pre-assessment of software for weighing instruments and modules in order to facilitate a subsequent conformity assessment of the entire device

The services are offered within the scope of the PTB conformity assessment body
Opens internal link in current window(KBS, sector 2). On its web page you can find further information on conformity assessment procedures.

If you want to order a type examination, please use the Opens internal link in current windoworder form from the PTB conformity assessment body and send it to Opens window for sending emailwaagen(at)ptb.de.

The costs for testing and evaluation depend on the effort. The hourly rate is given in the Regulations Governing Charges for Services Supplied "Kostenverordnung fuer Nutzleistungen" Opens internal link in current window (KVONL).



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Regulations, standards and recommendations:

  • Measurement and verification law (Opens external link in new windowMessEG)
  • Measurement and verification ordinance (Opens external link in new windowMessEV)
  • European Directive 2014/31/EU (Opens external link in new windowNAWID)
  • European Measurement Instruments Directive(Opens external link in new windowMID)
  • OIML Recommendations (Opens external link in new windowOIML)
  • WELMEC Guides (Opens external link in new windowWELMEC)

Interesting links:

  • Verification authorithies (Opens external link in new windowEichamt)
  • Working group metrology and verification (Opens external link in new windowAGME)
  • VDMA - department weighing technology (Opens external link in new windowVDMA)

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