AT901 Automated Filter Tester is designed as a stand-alone tester for checking a few filters per day or for integration into an automated, high-volume production line. It has a proven track record of durability, reliability, and minimal maintenance, meeting the demanding requirements of manufacturing and quality control environments over the past ten years. Equipped with two specially designed aerosol generators, it enables highly repeatable and reproducible filter-efficiency measurements. It features a high degree of automation and self-diagnostics that greatly simplify operation, increase throughput, and improve overall measurement performance. As a result, the AT901 filter tester is ideally suitable for QC testing. It complies with more regulations and is well received by many customers. Equipped with a laser particle counter, it makes filter efficiency more accurate. Simple, fast, and automated operation. Highly consistent test results. Designed for manufacturing environments. Supports Chinese and English, with a menu-type operating mode and a large LCD display, making it easy to switch. Computer control with special software. More test items. Technical Specification Model: AT901 Aerosol Salt, DOP, DEHS, Paroline, Corn oil etc Aerosol density (50〜200) mg/m³ (oil); (12〜20) mg/m³ (salt) Detector Laser: aerosol particle counter Measuring range: (20〜100) L/min Detect temperature 5~35℃ Related humidity 0~90% RH OPC self-purification time ≤10 mins OPC flow rate accuracy ±5% OPC repeatability 10% F.S OPC particle size distribution deviation ±30% OPC particle density deviation ±30% F.S Pressure: detect Digital pressure sensor (pressure difference transmitter) Pressure: detect range (0~0.88) MPa Pressure: detect accuracy Grade 2.5 Efficiency testing range filter efficiency: 0.001%~99.999% Operation display LCD display Power supply: 200~235V, 50Hz Dimension Main machine 950mm × 600mm × 600mm Control cabinet 750mm × 600mm × 600mm