The filter controller "HE 5722" of Hesch can control up to 24 solenoid valves both time and differential pressure dependent. By the microprocessor control to adapt to different industrial dedusting is particularly flexible possible. The differential pressure across the filter is measured by means of an integrated sensor mbar in a definable range of 0 1000 up to one decimal place and displayed accurately.
With the differential pressure control, an upper and lower threshold can be entered at which the cleaning process is started or interrupted. In addition, the user can freely select the valve control functions: threshold-dependent cleaning can be set as well as time-controlled valve control. Also, a post-cleaning of the overall filter, Mehrfachabpulsungen and differential pressure-dependent break times are possible. In addition, two alarm thresholds are freely definable.
The control states are forwarded by the HE 5722 controller via relays to the monitoring controller as an operating, fault and cleaning message. LEDs on the unit indicate the status and any malfunction of each valve. In addition, the controller has an analogue input for an external differential pressure signal.