Multifors 2 - Parallel Bench-top Bioreactor
Technical Data
Page
36
of
211
28 March 2018
3.5.6 Gassing Bacterial System
The entire gas entry takes place via the sparger.
The specific gassing rate, calculated for the max. working volume
is for each vessel size and each variant 2 min
-1
.
Variant Basic
Gas(es)
Gas flow
control
Accuracy
Rotameter
Gas mix control
Air
1 Rotameter
± 4 %
----
Air + O
2
1 Rotameter
2 solenoid valves
Air + N
2
1 Rotameter
2 solenoid valves
Air + O
2
+ N
2
1 Rotameter
3 solenoid valves
Variant Standard
Gas(es)
Gas flow
control
Accuracy
MFC
Gas mix control
Air
1 MFC
± 1 %
----
Air + O
2
1 MFC
2 solenoid valves
Air + N
2
1 MFC
2 solenoid valves
Air + O
2
+ N
2
1 MFC
3 solenoid valves
Variant High End
Gas
Gas flow control
Accuracy MFC
Air
1 MFC
± 0.3 %
(final value)
± 0.5 %
(measured value)
Gases
Gas flow control and gas
mix control
Air + O
2
2 MFC
Air + N
2
2 MFC
Air + O
2
+ N
2
3 MFC
Measuring ranges of mass flow controllers and rotameters
Max. working
volume
vessel
Measuring range Rotameter
L min
-1
(Variant Basic)
Measuring range MFC
L min
-1
(Variant Standard)
Measuring range MFC
L min
-1
(Variant High End)
0.25 L
0.05 up to 0.50
0.01 up to 0,50
0.005 up to 0.5
0.50 L
0.10 up to 1.00
0.02 up to 1.00
0.01 up to 1.0
1.00 L
0.30 up to 2.00
0.04 up to 2.00
0.02 up to 2.0
