Gassing - Infors HT Labfors 5 Operating Manual

13.6.5 Gassing

22 January 2019
Range of control
Accuracy
1 ) Temperature depends on energy output (stirrer, gassing temperature,
chemical and biological reaction)
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
Variant Basic
Gas(es) Gas flow
control
Air 1 Rotameter
Air + O 1 Rotameter
2
Air + N 1 Rotameter
2
Air + O + N 1 Rotameter
2 2
Variant Standard
Gas(es) Gas flow
control
Air 1 MFC
Air + O 1 MFC
2
Air + N 1 MFC
2
Air + O + N 1 MFC
2 2
Labfors 5 – Version for Microorganisms
Technical Data
System with water circulation:
from 5 °C above inlet temperature up to
70°C
System with electrical heater pad and
cold finger:
from °C up to 95 °C
1
Measurement:
± 0.2 °C at +10 °C up to +70 °C
Control:
≤ ± 0.2 °C
.
-1
Accuracy
Rotameter
± 4 %
Accuracy
MFC
± 1 %
Gas mix control
----
2 solenoid valves
2 solenoid valves
3 solenoid valves
Gas mix control
----
2 solenoid valves
2 solenoid valves
3 solenoid valves
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