Specifications

5.6. Mode
The mode selection can be activated by pressing the left-hand softkey
Mode
in the active values window. The function Mode
comprises the operating mode selection and the phase selection.
Freeze drying comprises the following four phases:
• Freezing
• Warm-up vacuum pump
• Main drying
• Final drying
5.6.1. Starting a drying process
If the unit is in standby mode, pressing the softkey Mode leads to
an inquiry concerning the phase to be used for starting the freeze
drying process.
If the user wants to start directly with the main or final drying phase,
the system inquires as to whether the vacuum pump should be
warmed up. This inquiry has to be confirmed by pressing either yes
or no .
5.6.2. Changing the phase
If the unit is in run mode, you can change over to the next phase or
stop the process by selecting Standby.
40 • LDplus Control System Operating Manual Freeze Dryer ALPHA 1-2 LDplus