Code 9
9.900.900.763
12/19
U:\QA\Manualer\Arkiv\Manuals- Labogene-Origio-GKO\Manualer-WORD\ScanVac\CoolSafe
XS
XL Usermanual-Rev A5.docx
5.4 Pre-Freezing & Freeze Drying
The CoolSafe 110-9 Pro XS & CoolSafe 95-15 Pro XL shelf modules are specifically
designed to locate inside the condenser chamber, to allow for Automatic pre-
freezing in 5 steps and freeze drying in 10 steps without recourse to any further
manipulations. However if choose to operate in the Manual mode via the Pro keypad
or Computer, then all values and time transitions for pre-freeze and freeze drying
must be made manually.
Load samples on trays or directly onto the shelves and located the unit into
the condenser.
Connect the cables from the shelving unit to the appropriate connections on
the rear of the CoolSafe.(incl. Product sensor if supplied)
Enter the values for pre-freezing, time and shelf temperature, 5 steps. If you
do not need 5 steps enter 0.00 in the steps not used.
In the pre-freeze mode vacuum is not applied
Enter the values for freeze drying, time, shelf temperature and maximum
pressure, in 10 steps. If you do not need all 10 steps enter 0.00 for time BUT
keep the temperature values the same. All 10 steps must have values
entered.
Pressure regulation (option 7.001.300.092 if fitted) allows programming and
regulation of the vacuum to set values in each of the 10 freeze drying steps.
Entering a zero value for pressure, no regulation is applied. This can be used
in the secondary drying phase of the cycle or if no regulation is required.
Possible in the last 4-5 steps of the freeze drying sequence.
5.5 De-Icing.
All CoolSafe models are offered with electric de-icing as an option (7.001.300.0010)
this facility gently warms the wall of the condenser and facilitates the release and
easy removal of the “ice-plug”.
NB. Always wear cryo-protective gloves when carrying out this procedure
If the electric de-icing option is not fitted :