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Camfil APC has introduced a cost-saving Smart Solenoid STR Controller for applications where dust collector filters are pulse-cleaned based on timed intervals. The timer controls that regulate pulsing are embedded within the solenoids, eliminating the need to wire a remote timer board to the solenoid tray. “On” and “off” cycles are easily adjusted through dials integrated into the solenoid tray. Factory settings are 150 milliseconds “on” time with a 30-second “off” cycle between pulses. The device is provided with multiple solenoid valves which vary from two to six.