| Independent Control Tower |
Housing Material |
Carbon steel, plastic powder coating |
| Display |
10.1″ color touch screen |
| Controller |
Siemens S series PLC, MCGS HMI |
| Integrated Pump |
4 fixed-speed fast-loading peristaltic pumps |
| Flow Meter |
2 rotameters |
| Communication |
USB (software upgrade, data copy and export), Industrial Ethernet, WiFi |
| Interface |
1 x pH sensor cable; 1 x DO sensor cable; 2 x stirring motor control wires; |
| 1 x temperature sensor interface; 1 x foam sensor cable; |
| 1 x heating base control wire interface; 1 x main power interface |
| Water Interface |
6 × hose barb fitting (inlet/outlet for exhaust condenser, base jacket and chilled water) |
| Air Interface |
3 × hose barb fitting (2 x gas supply interface, 1 x gas outlet) |
| Power Supply |
220V (±10%), 50Hz, single phase |
| Rated Power |
400 W |
600 W |
800 W |
900 W |
900 W |
1500 W |
1500 W |
| External Size (WxDxH) |
360×500×720mm |
| Net Weight |
Approx. 40 Kg (depending on configuration) |
| Agitation Control |
Motor |
Maintenance-free, low noise servo motor |
| Speed Range |
5 – 1000 rpm |
| Speed Accuracy |
± 0.5% |
| Rated Power |
200 W |
400 W |
400 W |
400 W |
400 W |
750 W |
750 W |
| Gas Control |
Gas Source |
Air, O2 |
| Control Method |
Air: rotameter; O2: rotameter + solenoid valve |
| Gas Inlet |
Ring sparger |
| Flow Range |
Sparger – Air: Max. design 2 vvm; Sparger – O2: Max. design 1 vvm |
| Flow Accuracy |
± 4% |
| Temperature Control |
Control Method |
Robust PID algorithm |
| Heating Method |
Closed loop system with circulating jacket, bottom electric hot plate |
| Heating Power |
80 W |
80 W |
200 W |
330 W |
330 W |
550 W |
550 W |
| Cooling Method |
Tap water or circulating cooling water |
| Sensor |
Pt100 RTD (JUMO, German) |
| Measurement Range |
0~150.0°C |
| Measurement Accuracy |
± 0.1°C |
| Control Range |
8.0 °C above coolant to 40.0 °C above ambient (0-65.0 °C absolute) |
| Control Accuracy |
± 0.2°C |
| PH Control |
Control Method |
· Robust PID algorithm · Cascade control with peristaltic pumps by adding acid and alkali |
| Sensor |
Hamilton Sterilizable Gel-filled pH electrode |
| Measurement Range |
2.00~12.00 |
| Measurement Accuracy |
0.01 |
| Control Accuracy |
± 0.05 |
| DO Control |
Control Method |
· Robust PID algorithm · Cascade control with different parameters (agitation, gas flow and pump) |
| Sensor |
Hamilton Sterilizable polarographic DO electrode |
| Measurement Range |
0.0~150.0% |
| Measurement Accuracy |
0.10% |
| Control Accuracy |
± 3% |
| Foam Control |
Control Method |
· Cascade control with peristaltic pump by adding antifoam (defoamer) · Mechanical defoaming blade |
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