Freeze-dryer Alpha 1-4 LDplus
Freeze-dryer Alpha 2-4 LDplus
Version 11/2006, Rev. 2.2 of 17/10/2016 • sb
Translation of the original operating manual
Option: Electrical lifting hoist
The freeze-dryer can be retrofitted with an electrical lifting hoist that
facilitates the attachment and removal of drying chambers.
The freeze-dryer must be in the standby mode and completely aerated.
The drying chamber cannot be moved in the "Main drying" and "Final
drying" phases.
• Select the function "Lifting hoist" under "Special functions" in the main
menu (see above).
• Move the drying chamber by way of the up/down keys.
Fig. 37: Operation of the electrical lifting hoist
• After the completion of the process, exit the menu via the left function
key "back".
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6.5.3.3 Process and equipment information
The menu "Process & equipment info" provides the user with information
concerning error, process, and system messages.
In the event of a message, a sound signal will be issued, the symbol " "
will appear on the status line, and the process and equipment information
window will be displayed. If the user is currently in a menu, the window will
not be displayed until the user exits the main menu.
1 Message
2 Status of the
information
3 Number of active
messages
4 Function key "exit
menu"
5 Function key
"acknowledge
message"
Fig. 38: Structure of the "Process & equipment info" menu
Regardless of the presence of a message, the menu can be activated at all
times in order to view any messages that are present.
• Select the "Process & equipment info" function in the main menu.
The error messages are listed in detail under chapter 7 - "Malfunctions and
error correction".
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