Dust filter unit for ASD DFU 911SE

A DFU 911SE dust filter unit can be used in the sampling pipe tube network of an ASD aspirating smoke detector in applications with dust or dirt. This significantly increases the service life of the smoke sensors used in the ASD and greatly reduces the likelihood of false alarms. A filter monitoring function in the ASD can be activated to indicate when the defined application-specific service life of a filter expires so that you can replace the filter element at the optimal time. The DFU 911SE dust filter unit consists of a two-part housing.