The EVM-3 provides real-time direct reading of particulate mass concentrations along with temperature and relative humidity measurements. The proprietary dial-in impactors allow for quick selection of particulate settings PM2.5, PM4, PM10 or TSP (within the instrument`s measurement range) without disassembly.
A built-in air sampling pump assists in the collection of particulates while the laser photometer provides real-time measurement. A standard 25 or 37 mm gravimetric cassette can be utilized for sampling and laboratory analysis and help provide correlation for real-time direct reading measurements. The EVM 3 includes base model with two 37mm Gravimetric Filter Cassettes (for pump protection; one in unit and one spare), three Dummy Sensors (used to seal socket when no sensor is present), 53-263 12V DC Universal Input Power Supply, 53-575 USB Cable, 100-456 Silicone Dielectric Grease for Impactors, 74-090 10 pack Pump Protection Filters, 74-720 Dust Zero Calibration Filter Assembly, and 74-718 Storage Case.