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3. Weighfeeder
The function of these instruments is to divide bulk products into practically constant, separate doses of predetermined mass, known as nominal quantities, and to fill individual containers, adapted to the products.
This instrument fills suitable containers with bulk materials (e.g. powder, granules, liquids, solids). The distribution of a nominal quantity of bulk product corresponding to a predetermined mass is constant.
The range of nominal dose quantities is very wide, from a few milligrams (e.g. pharmaceuticals) to several tens or even hundreds of kilograms (e.g. coal, cement, fertilizers, cereals, sand), and even a few tens or hundreds of grams (e.g. food products sold to the retail trade).
3.1 Technical...
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Bibliography
- (1) - Bulletin OIML - MID European Directive for Measuring Instruments – A new challenge to industry and to the state. - Volume XLI, numéro 4 (Octobre 2000).
Also in our database
Standards and norms
AFNOR standards
- Aspects métrologiques des instruments de pesage à fonctionnement non automatique. - NF EN 45501 - 2015
- Automatic weighfeeders – Part 1: Metrological and technical requirements. - NF E12-010-1 - 1998
- Automatic weighfeeders – Part 2: Test methods, conditions and procedures. - NF E12-010-2 - 1998
- Continuous handling equipment – Belt conveyors designed to be...
Regulations
Directive no. 2004/22/EC of March 31, 2004 on measuring instruments (text repealed for the "metrological control of instruments" category).
Directive no. 75/106/EEC of December 19, 1974 on the approximation of the laws of the Member States relating to the making-up by volume of certain prepackaged liquids. Amended by directives no. 78/891/EEC of September 28, 1978, no. 88/316/EEC of June 7, 1988 and...
Data
1. European regulations
Depending on their intended use, automatic weighing instruments (AWIs) may be subject to government control at the design, construction, installation and use stages.
The new approach to harmonizing national legislation for AFPIs is similar to that for NAWIs. Its aim is to lay down essential metrological and performance requirements, to guarantee effective protection...
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Manufacturers – Suppliers – Distributors
Checkweigher manufacturers
Sartorius-Vivascience (France)
http://www.sartorius-france.com/
Mettler-Toledo, Garvens (France)
...
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