Technical Parameters:1. Fineness of sieve analysis test: 80μm2. Sieve analysis automatic control time 2min (factory setting)3. Working negative pressure adjustable range: 0 to -10000pa4. Measurement accuracy: ± 100pa5. Resolution: 10pa6. Working environment: temperature 0-500 ℃ humidity<85% 30="" rh7.="" nozzle="" speed:="">