The installation for the preparation of calibration mixtures UPKS is intended for the preparation of gas mixtures in the range of the content of components from 1 × 10 -4% to 10% with a relative error due to the design and preparation method, not worse than (3 - 5)%, used when measuring the composition of gaseous samples for impurities, the installation allows you to simultaneously mix up to 9 different gases.
All components of the unit in contact with the working gases are made of stainless steel. The inner surfaces are finished in accordance with the standards used in high vacuum technology. The vacuum connections are sealed with copper gaskets.
The principle of preparation of gas mixtures is based on sequential dilution of the initial most concentrated mixture with the main component of the mixture. The initial mixture is prepared by direct sampling of components from appropriate sampling points into a mixing cylinder.