Technical data

Test time
During the test, the ice condenser is separated from the drying
chamber. The pressure increase is analyzed after the test time.
If the pressure increase has to be measured during the execution
of the program, the corresponding option checkbox must be
selected.
Fig.42 Parameters for the pressure increase measurement
5.6. Process and equipment information system
The process and equipment information system shows and saves
malfunctions and messages. In this way, short-time defects or
messages occurring overnight, for example, can be recognized the
next day. Consequential malfunctions are also saved and
displayed. The process and equipment information system is
provided with a floating relay output for a central monitoring
station.
The process and equipment information system distinguishes a
message and a process or hardware error. In the event of an error
or message, the process and equipment information system
appears automatically on the screen. Simultaneously, a sound
signal is given (5 times at 16-seconds intervals) until the error
message is confirmed. In the event of process or hardware errors,
the active operating lamp “Run” or “Standby” flashes. The
information window cannot be closed until all errors and messages
have been acknowledged.
Operating Manual Freeze Dryer ALPHA 1-4 LSC / ALPHA 2-4 LSC LSC Control System • 63