Endress+hauser Gmbh+co. Kg

Harri Notacker

Wolfgang Dannhauer

Igor Getman

Dietfried Burczyk

A method for embossing a separating membrane of a pressure transfer means including a membrane carrier having a membrane bed. With the method, an optimal forming of the separating membrane matched to the form of the membrane bed is achievable. The method includes steps of: welding a planar, separating membrane blank onto the membrane carrier; filling with a lubricant a pressure receiving chamber enclosed by the welded, separating membrane blank and the membrane carrier; producing the separating membrane from the separating membrane blank by embossing the separating membrane blank by pressing it against the membrane bed while lubricant is present in the pressure receiving chamber.

Method for embossing a separating membrane of a pressure transfer means

For avoiding the evaporation of volatile components of a fill oil and for avoiding contamination of the fill oil with ambient air, a method for the filling of hydraulic pressure measurement mechanisms by means of a readied filling chamber. The method includes the following steps: (I) Evacuating the filling chamber by means of a vacuum pump over a first path of a first conductivity, extending between the vacuum chamber and the vacuum pump; (II) ending the evacuation of the filling chamber over the first path; (III) continued evacuating of the filling chamber by means of the pump over a second path of a second conductivity, extending between the filling chamber and the vacuum pump, wherein the second conductivity is smaller than the first conductivity; (IV) feeding the fill oil into the evacuated fill chamber and (V) filling the measurement mechanisms.

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Caputh, Germany

Harri Notacker