B-Tohin has established its professional center covered an area of 400 square meters for inspecting the blowers' comprehensive properties. And it also introduced the advanced CRAS signal collecting and monitoring system, that is used to collect and send signals such as air volume, blowing pressure, noise, vibration, rotary speed, temperature, electric current and electric voltage etc. to computer for realizing computers' on-line monitoring, analyzing, record storing and so on. The system ranks front in the same sector.

Testing Site
Sketch map of SLIP Test
The "SLIP" means to test the blower rotary speed when pressure is 7 kpa and biggest inlet flowrate returned from outlet generated. By taking use of this method, we can test whether the blower clearance is up to standards and can calculate flowrate and cubage efficiency under every pressure.
SLIP & Cubage Curve
SLIP & Outlet Curve
Sketch map of test of blower package
Scope of Test Data Unit Points tested in one time Tested range Precision of test Standard Flowrate m 3 /min 3 0-200 1.0% JB/T8941.2-1999 Pressure Kpa 6 0-200 1.0% JB/T8941.2-1999 Noise dBA 4 0-130 1.0% GB/T2888-1991 Vibration mm/s 3 0-99.9 3.0% GB/T 11347 Speed RPM 1 0-3600 0.2% JB/T8941.2-1999 Temperature o C 2 -20-250 ± 1K JB/T8941.2-1999 Current A 6 800 0.5% JB/T8941.2-1999 Voltage V 6 600 0.5% JB/T8941.2-1999
Testing and analyzing vibration
Testing and analyzing flowrate		Testing and analyzing noise