Vessel Material :glass body and stainless steel lid and bottom 

The high ratio: 2:1

Mixing method:  Mechanical agitation  John Crane mechanical seals servo motor

 Sterilization method: off-site sterilization  Autoclavable 

Control system: Siemens PLC, industrial LCD touch computer control, parameters can be set to store, can be remotely connected to the computer through the USB interface, the data

Stirring system 
Mechanical sealing system at the top of the fermenter; high-powered stirring oar, antifoam oar; AC electrical machine: infinite speed variation; rpm in the fermenter: 70~1２00rpm±1%,The height of the stirring oar can be adjusted, too.

Temperature detection and control 
Heat by thermostatic water tank and circulate by circulating pump(Grundfos, Denmark), autocontrol (cooling water+5℃)~65℃±0.1℃，temperature probe(US)

pH detection and control 
2.00-12.00±0.05pH, autocontrol by adding acid and base, pH sensor (Mettler, Switzerland) and shielding lead (Mettler, Switzerland). fermenter is autocontrolled with peristaltic pump

DO detection and control 
0-150±3% displaying precision 0.1%, sensor (Mettler, Switzerland) and shielding lead(Mettler, Switzerland)

Feed control 
fermenter uses peristaltic pump (Longer) to add meterials

Antifoam control 
Tested by sencor and added antifoamer by peristaltic pump

Intake control (air) :manual control rotameter

pressure detection and control 
Pressure Control: Pressure meter and digital display and digital remote control,Pressure manual control

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