Chapter 5: Using Your Freeze Dryer
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Original instructions
1.
Go to the Programs screen.
2.
Select a program from the saved programs list, or create a new program.
3.
With the desired program selected from the list, press the START button.
4.
The refrigeration system will start.
5.
When the collector temperature reaches –80°C and the shelf temperature
reaches the desired set point of segment 1, turn off the vacuum pump and
release the vacuum. Place the frozen samples on the shelf. Close the door
and turn the vacuum on.
Program Mode with Unfrozen Samples
1.
Place unfrozen samples on the shelf and close the door. The sample probe
can be placed in the sample if desired.
2.
Go to the Programs screen.
3.
Select a program from the saved programs list, or create a new program.
The first step of the selected program (or multiple steps if desired) must
have the vacuum turned OFF while the sample is pre-freezing.
THE VACUUM SHOULD ALWAYS BE TURNED OFF WHILE
USING THE SHELVES TO FREEZE SAMPLES
4.
With the desired program selected from the list, press the START button.
5.
The refrigeration system will start.
6.
The program should contain all the necessary steps to take the sample
through the pre-freezing, primary drying, and secondary drying processes.
Stopping the Freeze Dry Cycle
Manual Mode
1.
Go to the Home screen, press MANUAL, then Stop.
2.
Turn OFF the vacuum pump.
3.
Position the “Vac Release” valve to OPEN (or open one of the sample
valves on the left side of the unit).
4.
Allow the vacuum to bleed to atmospheric pressure, then open the door
and remove the samples.
5.
Defrost the ice, drain the collector pan, and dry.
Program Mode
1.
If operating in program mode, the “Program Complete” alert will be
displayed on the touch screen at the end of the last programmed step.
After the “Program Complete” alert has been presented, the unit will
continue to run in Manual mode until turned off by the user (shelf set
point temperature and vacuum set point will hold the settings from the
last program step).
