Minifors 2 - Benchtop Bioreactor
Cleaning and Maintenance
Page
188
of
214
07 February 2019
Procedure
1.
As far as possible, remove mounted parts before lifting the top
plate.
2.
Remove the knurled screws on the top plate by hand (no tool!)
and place them to the side.
3.
Carefully lift the top plate vertically upwards from the vessel
until the stirrer shaft and other long components can no longer
come into contact with the glass vessel.
ATTENTION
If the vessel top plate presses against long components they
could bend because of the weight of the top plate.
Always position the vessel top plate so that it does not lie on top
of components.
4.
If necessary, now remove components that have not yet been
removed.
Never remove the stirrer shaft!
5.
Check the glass vessel for damage (cracks, fissures,
scratches) and replace if necessary.
11.3.8 Removing the Sparger and the Dip Tube(s)
Straight spargers and dip tubes can be removed from the outside
of the vessel top plate. Curved spargers and dip tubes can only be
removed from the inside of the vessel top plate.
Since this equipment uses ring spargers and straight dip tubes,
removal from the inside of the vessel top plate is described here.
This means that the vessel top plate is already removed.
Proceed as follows:
Procedure
1.
Loosen and remove the fastening screw beside the
sparger/dip tube by hand.
2.
Loosen the slotted-head screw at the clamping adapter.
3.
Carefully pull the sparger/dip tube from the bottom out of the
clamping adapter.
4.
Pull the clamping adapter out of the vessel top plate port by
hand.
Ensure that the outer O-ring at the clamping adapter does not
get lost.
