In the CR series, the filter cartridge is placed on a seal-seat testing frame. This allows the interface between the filter cartridge and the basic housing to be tested for leaks – overpressure test (Img. 1). The system can also be equipped with 2 or 4 optional measuring probes that are positioned below the filter cartridge. This allows measurement of the particles right after the filter cartridge – verification measurement (Img. 2). You can also measure the particles over the entire surface of the police filter (surface scan) – verification measurement (Img. 3).