Every filtre unit is equipped with a control panel for monitoring of all important values and for making optimal the cleaning cycle of filter cartridges in dependance on the current conditions of the unit so, that the life time is as long as possible. The central cleaning system can be equipped with a fully automatic control unit of the fan by means of the frequency converter with PID vacuum transducer in the ducting , automatic valves of individual branch lines with the sensor of the welding unit cycle or other technological device.
 Frequency invertor enables the output regulation or the fan consumption regulation according to real needs of individual workstations independently on the human factor. Furthermore, it is possible to scheldule a time snapshot of respective working changes and the overall operation is fully automatic. The energy saving scores up to 60%.