Null shift stability
Characteristic whereby a measuring instrument does not change its zero point under external influences (e.g. temperature), even over the long term.
Motor stiffness
Relationship between changes in torque at the motor shaft and changes in the angle of rotation ( load stiffness ).
Diaphragm (membrane)
Mostly pre-shaped plates made of elastomer whose task is to form a tight separating wall for a limited volume. A distinction is made between flat, pot and rolling diaphragms ( Figure M 12 ). Within hy
On-off control
Compressor and motor are allowed to run. When the upper pressure value is reached, the compressor switches to idling mode. This is done by providing relief at the pressure side with the suction valve
Low-pressure pump
Hydraulic pump used in the range between around 20 and 70 bar. These are gear pumps which perform various tasks such as generating a rapid traverse velocity or supplying a control circuit and the like
Nominal operating conditions
Conditions for which a device has been designed based on its application. The details — if not already specified in standards — are generally set out in manufacturer's catalogues and identified via th
Flag
Binary memory elements in the program memory for control devices used to store selected binary data (EDIN 19 226, Part 5). A distinction is made between non-retentive and retentive flags where the sig
Hydraulic seals
Components whose job it is to seal areas under pressure in such a way that pressure levels are maintained. These are contact seals that may also be used at high pressures levels. The materials used fo