Technical data

exit the editing frame, select the top focus position (section
number).
Inserting a section
This button inserts a new section at the section position in the
editing frame. The set values are copied from the selected section.
A maximum of 32 sections can be defined.
Deleting a section
This button deletes a section at the section position in the editing
frame. A program consists of at least 3 sections.
Additional set values
• Warm-up vacuum pump
Defines the time for the warm-up of the vacuum pump.
For the warm-up, the vacuum pump is switched on
automatically by the programmer module.
• Alarm LyoControl Rx
The value “alarm LyoControl Rx” defines the minimum
permissible value of the LyoRx sensor during the drying
process. If the actual value falls below this minimum
value, the shelf heating unit will be switched off. This
prevents the product from thawing as a result of the
excessive energy supply through the shelf temperature-
control system. The LyoRx value is only evaluated
during the main drying phase and during the final
drying phase.
• dt shelf
At the end of the section, the actual temperature of the
shelf is compared to the set value. If the shelf
temperature difference is beyond the permissible range
(dt shelf), the section will be extended by the PGM-30
until the difference is in the permissible range. If the set
value for "dt shelf" is set to OFF, the shelf temperature
will not be checked at the end of the section.
• Pressure increase test during main drying
See section 5.5.8 “Pressure increase test during main
drying”
• Pressure increase test during final drying
See section 5.5.8 “Pressure increase test during final
drying”
5.5.3.1. General program information
The dialog box “General program information“ shows the program
name and the locking state of the program.
Operating Manual Freeze Dryer ALPHA 1-4 LSC / ALPHA 2-4 LSC LSC Control System • 59