Mounting The Impellers - Infors HT Labfors 5 Operating Manual

Procedure
8.1.2

Mounting the Impellers

Procedure
22 January 2019
Before Fermentation/Cultivation
1. Check the vessel seal (O-ring) for damage and on correct
seat: it must rest firmly on the slightly prominent vessel rim
within the metal ring.
Place it correctly as necessary.
2. Ensure that each mounting part is equipped with an intact O-
ring: check that O-rings are correctly positioned and undam-
aged. Replace or reposition, if necessary.
The figure to the left shows a blanking plug with fixed O-ring
for mounting into a 19 mm port with mounted threaded
adapter.
If mounting parts have to be fitted into other mounting parts
(clamping adapter), an O-ring must be placed between them,
too.
INFORMATION
Septum collars are sealed with a septum. No O-ring is used!
To mount the impellers to the stirrer shaft, proceed as follows:
1. Slide the impeller onto the stirrer shaft.
2.
Set the desired height.
3. Tighten the grub screws on the impeller with the Allen key.
INFORMATION
To avoid unnecessary foam formation, do not fit the impeller at
the same height as the surface of the medium.
Labfors 5 – Version for Microorganisms
Page 107 of 205