DWS2103 digital scale display for 'legal for trade' scales

The scale display works with analogue and digital load cells such as FIT and C16I types. Analogue load cells can also be connected via HBM's AED digital transducer to ensure that automatic and non-automatic scales can be easily realised, as well as with complete weighing systems.

HBM says the new DWS2103 digital scale display is suitable for industrial applications where the control system is implemented via a PLC and standard fieldbuses. Using HBM's AED digital transducer electronics is said to be a simple way to upgrade these applications to legal-for-trade status easily and cost-effectively.

Data transmission in the DWS2103 digital scale display is implemented with the Advanced Encryption Standard (AES) process that works with a 256-bit key. This modern encryption algorithm meets the requirements of the WELMEC 7.2 guidelines. This avoids the possibility of data manipulation during transmission so that the legal-for-trade capability of a scale is always ensured.

The DWS2103 has been awarded several type approvals for various types of automatic and non-automatic scales by the PTB, one of the appointed approval bodies in Europe. The Physikalisch-Technische Bundesanstalt (PTB) is Germany's national metrology institute providing scientific and technical services.

The 2004 European Measuring Instruments Directive (MID) has been included in national German law since 2007 through an amendment to the Weights and Measures Act. The requirements for weighing technology include, in particular, protection against manipulation in data transmission - for example, from a digital load cell or scale to the display unit.

HBM says that the DWS2103 digital scale display complements its modular system for legal-for-trade weighing systems. This offers customers all products and systems, from OEM boards via digital load cells to complete weighing systems, including displays and interfaces, for integration within customer systems.