Manual

60  Maintenance and Service Operating Manual Freeze Dryer ALPHA 1-4 LDplus / ALPHA 2-4 LDplus
7.1.8. Disinfection of Drying Chamber, Lid and Accessories
All usual disinfectants like e. g. INCIDUR, Melisiptol, Sagrotan,
Buraton or Terralin (available at laboratory retail suppliers) can be
used.
NOTE! Check compatibility with lid and drying chamber; also see
enclosure “Resistance to stress cracking and chemical influences
PLEXIGLAS

" (acrylic glass).
The freeze-dryers and the accessories consist of different materials.
A possible incompatibility must be considered. The compability of
the outer protective layer of the LYO CHAMBER GUARD film has
not been field-tested yet. Therefore, we cannot guarantee a
compability of 100% with disinfectants.
For autoclaving the temperature stability of the individual material
must be checked. Please consult us if in doubt.
If dangerous materials are used, the freeze-dryer and the
accessories must be disinfected.
7.1.9. Checks by Operator
The operator has to ensure that the important parts of the freeze-
dryer relevant for safety are not damaged.
This especially refers to:
 Lid or drying chamber
 Seals
 Oil level of vacuum pump
 Accessories, especially changes like corrosion, wear
and tear of material etc.
Furthermore, an earth conductor check must be carried out
regularly.