Self-monitoring of systems
function alarm is issued, which is analysed and reported by the microprocessor. The self-monitoring can be performed by way of suitable sensors in signal processing by methods of plausibility checking, which [...] This labels a configuration, which identifies error messages of individual sensors, isolates them and can replace their signals with estimates. In measurement technology, the self monitoring is achieved by [...] enhancing the measuring device to include a , which gives it the properties of an adaptive system, which can also compensate for interference during operation.
System-compatible signal
Signal whose are defined for an equipment group (modular system) and which can be processed by all devices of that group without additional measures (DIN 19 237).
Timing control
Control in which the reference variable (n) is delivered by a time-dependent programmer . The programmer can be started by a trigger signal (DIN 19 226).
Continuously adjustable valves
for valves such as proportional valves , high response proportional valves and servo valves, which can be continuously adjusted .
Error curve of measuring instruments
Graphic representation of the error as a function of the output (indication). The error behaviour can also be defined in a table (Figure F 5) (VDI 2600).
Open-centre position
In the case of three-directional valves, in the centre position, all ports can be connected to one another –– and therefore with the workflow (requires negative overlap).
control parameters
Setting values of the controller, which can be used to adapt the controller properties to the conditions of the controlled subsystem, and the quality requirements of the .
Release signal
signal. Here attention is to be paid to the duality of release and locking: The reversal of locking can correspond to a release (DIN 19 237).
Ultra fine filter
Compressed air filters that can retain particles of dirt down to 0.01 μm. This includes fluid particles of this size (e.g. aerosols), and also bacteria and viruses.
Filter life
parameter, which would be very important for the user, depends on so many boundary conditions that it can, at best, be estimated if the operating conditions are known.