Filling method for filling a hydraulic pressure measurement mechanism with oil, whereby a filling chamber is pumped down using two different vacuum suction lines, with the second made of reduced conductivity material

摘要

Method for filling a hydraulic pressure measurement instrument using a filling chamber has the following steps: evacuation of the filling chamber using a vacuum pump over a first path with a first conductivity that extends between pump and vacuum chamber; ending of the first evacuation; continued evacuation over a second path with a second conductivity that is less than the first; supply of the filling oil to the evacuated filling chamber; and filling of the pressure measuring mechanism. An Independent claim is made for a device for filling a hydraulic pressure measurement mechanism of a pressure measurement instrument with oil, typically silicon oil.