Martin Christ Alpha 2-4 LDplus - Manual (Page 47)

Operating Manual Freeze Dryer ALPHA 1-4 LDplus / ALPHA 2-4 LDplus LDplus Control System 47
5.7.1.1. Set values for freezing
Timer
Time for the freezing phase section time. You can set a
time between 1 minute and 200 hours. Selecting the
infinite set value ( ) deactivates the timer for the
freezing phase.
5.7.1.2. Set values for main drying & final drying
Timer
Time for the main or final drying phase section time. You
can set a time between 1 minute and 200 hours.
Selecting the infinite set value ( ) deactivates the timer
for the main or final drying phase.
Vacuum
Set value for the control vacuum in the drying chamber
during main or final drying. The vacuum control option
must be installed. You can set a value between 6.1 mbar
and 0.0010 mbar converted into steps of 1°C according
to the vapor pressure curve above ice for water.
Set values for final drying are not available unless the vacuum
control option is installed.
5.7.2. Special functions
The special functions menu is used to operate special accessories
(defrosting device and electrical lifting device) of the freeze-dryer.
If one of the options is not installed in the freeze-dryer, the system
displays the message Option not available.
A detailed description of the special functions can be found in the
chapter “LDplus Special Functions”.
5.7.3. Process and equipment information system
Further information can be found in the chapter “Process and
equipment information system”.