HUBER PTF 4000 Primary Pressure

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HUBER PTF 4000 – Dipping-Bell Primary Pressure Standard class 0.02%

The PTF4000 Pressure Primary Standard is a state-of-the-art application of this basic principle.

The dipping-bell, made from a thin-walled stainless pipe-closed on the top, is located as under-load on a precision balance with electronically controlled force compensation. The pressure to be measured passes through two tubes through the sealing liquid under the bell, thus resulting in a buoyancy.

The resulting force is measured and compensated electronically. Complex control algorithms compute under consideration of environmental factors (optional) high precision and reproducibility.