Calibration scale

摘要

The device has a cylinder holder (20) in the form of a separate part from a connection unit (50). The cylinder holder and the connection unit can be joined by a plug connection (42, 56) and can be separated from each other. A holder (48) secures the cylinder holder and the connection unit when they are joined together by the plug connection. AN Independent claim is also included for the following: (a) an annular weight body for an inventive piston pressure balance.