Martin Christ Beta 2-8 LSCplus - Manual (Page 94)

Beta 1-8 LSC&
Beta 2-8 LSC&
11 Appendix
94
Version 04/2013, Rev. 1.1 of 16/12/2013 • sb
Translation of the original operating manual
screw
Fig. 80: Rear view of the
freeze-dryer
1 Status line
2 Set process values
3 Button "Set values:
view/edit"
4 Actual values of the
current process
5 Button "Tools"
6 Button "Schematic
system diagram"
7 Button "Process and
equipment messages"
8 Button "Operating
mode: select/start"
9 Button "Stop"
Fig. 81:
LSCplus user interface
Step-by-step instructions – shelf drying
1 Freeze the sample separately, e.g. in a deep-freeze.
NOTE
Ensure that the layer thickness of 1 to 2 cm is not exceeded, since
otherwise the drying time needs to be extended.
2 Check the ice condenser chamber and ensure that it is completely free
from water residues.
3 Close the condensate drain valve and install the base plate.
4 Switch the unit on 20 to 30 minutes prior to the start of the drying
process in order to let the vacuum pump warm up.
5 Place the plate rack on the base plate.
6 Transport the frozen samples as quickly as possible from the deep-
freeze to the freeze-dryer and place them on the shelves.
NOTE
Recommendation: Store the product vessels on the aluminium shelves or,
if possible, the entire rack with the shelves in the deep- freeze. The
advantage is that due to the higher cold storage capacity of the aluminium
material, the product will remain frozen for a longer period of time so that
the sample will not thaw.
7
nstall the drying chamber. Prior to doing so, check whether the O-ring
is completely free of dirt particles. The ground-in stopper of the acrylic
glass bell must be greased with high-vacuum grease.
8 Ensure that all of the valves of the acrylic glass bell are closed.
9 Ensure that the aeration valve is closed.
10 Ensure that the condensate drain valve is closed.