Technical data

Fig. 43: Dialog box for the process and equipment information system
The following messages are displayed in the process and
equipment information system:
Description
Error/message status
Confirm
Total number of
errors and messages
Current error/message code
Close the process and
equipment information system
5.6.1. Process messages
For messages referring to hardware errors please see chapter
6.7.1.
Code 03
Safety pressure was fall below and exceeded again
during the drying process.
The error message is displayed if the pressure has fallen below
the preset safety pressure and has then exceeded it. Please check
whether the preset value for the safety pressure is too low or the
preset value for the quantity of the sample to be dried or the shelf
temperature are too high. In this case, the temperature of the ice
condenser may rise too high because of the high load.
Code 20
Alarm Lyo Control Rx
LyoRx value is out of range. Shelf heating is turned off.
Code 21
Product to wet. Section was extended
64 • LSC Control System Operating Manual Freeze Dryer ALPHA 1-4 LSC / ALPHA 2-4 LSC