Mechanical engineering and plant construction companies plan complex production lines, designed individually to meet customer wishes and needs. Hereby, one important issue is the installation of a compressed air network together with the necessary supply. A wide range of pneumatic systems such as tensioners, grippers, clamping devices, etc. work in the network. The system regulates the different operating pressures by means of pressure switches. They are installed upstream of the respective device to control the required operating pressure. In addition, pressure switches monitor the supply line pressures. Any deviation from the preset pressure is signalled as a fault or alarm and is used to control the compressor motors to restore the correct pressure.

Vacuum technology is used in many fields of automation: Robot systems work as mechanical assistants in automated production lines, where they handle logistic tasks, for example. The robot grippers are controlled pneumatically. Pressure switches control and monitor the flows of compressed air and cooling water of the consumer, i.e. the robot. Deviations from the preset pressure values are signalled as a fault or alarm by the pressure switches.