Multifors 2 - Parallel Bench-top Bioreactor
Maintenance
28 March 2018
Page
195
of
211
Procedure
1.
Carefully rinse the vessel top plate and its component parts
(sparger, stirrer etc.) with distilled water.
Use 0.1 N caustic soda solution and afterwards distilled water
as necessary.
2.
Check the vessel top plate sealing and O-rings on component
parts on damages and replace them as necessary
3.
Store the vessel top plate and its component parts clean, dry
and in a location where it cannot be physically damaged (e.g.
by falling).
9.6.3 Exit Gas Cooler
To clean the exit gas cooler, proceed as follows:
Procedure
1.
Remove the exit gas cooler from the vessel top plate.
2.
Put the exit gas cooler into 0.1 N NaOH for 4 hours.
3.
Rinse the exit gas cooler thoroughly with water.
4.
Put the exit gas cooler into an ultrasonic bath for 2 to 5
minutes.
5.
Wash the exit gas cooler through with 70 % Ethanol.
6.
Thoroughly
rinse the exit gas cooler with distilled water.
9.6.4 Reagent Bottles and Hoses
WARNING!
Risk of injury due to skin or eye contact with
corrective reagent!
Corrective reagent may leak out when disconnect-
ing the reagent hoses from the reagent bottles and
vessel top plate. Skin or eye contact with acid or
base may cause severe chemical burns!
Therefore:
– Always wear protective gloves
– Always wear safety goggles
Respect the following points:
Never dismantle the pump heads to avoid damages
