Test items: Identify the unique water resistance, water repellency, and water absorption characteristics of the fabric structure, including the geometric structure of the fabric, the internal structure, and the wicking characteristics of fabric fibers and yarns. It is used to test, evaluate and classify the dynamic transmission performance of liquid water in fabrics; identify the unique water resistance, water repellency, and water absorption of the fabric structure based on the geometric structure of the fabric, internal structure, and the core of fabric fibers and yarns Suction features and so on. The DRK821A liquid water dynamic transfer tester is used to test, evaluate and classify the dynamic transfer performance of liquid water in fabrics; it is based on identifying the unique water resistance, water repellency, and water absorption of the fabric structure, including the geometric structure, internal structure and The wicking characteristics of fabric fibers and yarns, etc. Standards Compliant: AATCC195-2011, SN1689, GBT 21655.2-2009, GBT 21655.2-2019 and other standards. Features: 1. The instrument is equipped with advanced motor control device, the control is accurate and stable. 2. Advanced droplet injection system, accurate and stable droplet, with liquid recovery function to prevent the infusion pipe from clogging the pipe by salt water crystallization. 3. Using high-quality gold-plated probes, high sensitivity, oxidation resistance, and good stability. 4. Color touch screen display control, Chinese and English interface, menu operation mode. Technical Parameter: 1. Test data: microcomputer control, bottom wetting time, surface wetting time, bottom layer maximum moisture absorption speed, surface layer maximum moisture absorption speed, bottom layer maximum moisture absorption radius, surface layer maximum moisture absorption radius, bottom moisture diffusion speed, surface moisture diffusion speed, cumulative single flow transfer Ability, overall liquid water management capability. 2. Liquid conductivity: 16ms±0.2ms; 3. Delivery volume of test liquid: 0.2±0.01g (or 0.22ml), inner diameter of test liquid tube 0.5mm; 4. Upper and lower sensors: 7 test rings, the distance between each ring: 5mm±0.05mm; 5. Test ring: composed of probes; upper probe diameter: 0.54mm±0.02mm, lower probe diameter: 1.2mm±0.02mm; Number of probes per ring: 4, 17, 28, 39, 50, 60, 72; 6. Test time: 120s, water inlet time: 20s; 7. Test head pressure <4.65N±0.05N (475gf±5gf), data collection frequency>10hz; 8. One key to start the test. After clicking start, the motor will automatically drive the test head to the specified position. The built-in pressure detection device will automatically stop when the fixed pressure is reached, start the test, and automatically return after the test is completed; 9. Equipped with a droplet injection system, the droplet is accurate and stable, and it has a reverse pumping system that can rotate in reverse to pump the remaining brine in the infusion tube back to the storage tank to prevent the brine from clogging the pipeline by crystallization; 10. Power supply: AC 220V, 50Hz, power: 4KW; 11. Weight: 80kg;