DRK0039 automatic air permeability tester is suitable for all kinds of woven fabrics, non-woven fabrics, special inflatable fabrics, carpets, knitted fabrics, raised fabrics, threaded fabrics and multilayer fabrics. Comply with GB/T5453-1997, DIN 53887, ASTMD737, ISO 9237, JIS L1096 requirements. Instrument Principle: The so-called fabric breathability refers to the air permeability of the fabric when there is a pressure difference between the two sides of the fabric. That is, the volume of air flowing through a unit area of ​​the fabric per unit time under a specified pressure difference on both sides of the fabric, in units of /(mms). Because the pressure difference is a necessary condition for air to flow, only when a certain pressure difference is maintained on both sides of the fabric to be tested can air flow in the fabric. Instrument Features: 1. Using high-precision pressure sensor to dynamically display the test value. 2. It has the advantages of high precision, stable performance, high degree of automation, and easy operation. 3. Equipped with computer data processing software developed and designed by professional and technical personnel, with complete and accurate retrieval functions. 4. Automatically detect the air permeability of various samples. According to the performance of the sample, the test range of the flowmeter can be automatically selected to ensure the accuracy of the test data. Technical Specifications: Dimensions: 840*430*1050 mm Weight: about 105 kg (231.4 pounds) Range of sample pressure difference: 1~2400Pa Measurable air permeability: 0.1~14000mm/s (standard 20cm²) Measurement error: ≤±2% Measurable fabric thickness: ≤12mm Suction volume adjustment: data feedback dynamic adjustment Sample area: standard 20cm² (optional 5cm², 6.45cm², 10cm², 20cm², 25cm², 38cm², 50cm², 100cm²) Data processing capacity: 3200 times Data output: large screen display, A4 Chinese printing Measurement unit: mm/s, cm³/cm²/s, L/dm²/min, m³/m²/min, m³/m²/min, dm³/s, cfm Power supply: Ac220V, 50Hz, 1500W