Technical data

5.7.6. Maintenance intervals of the vacuum pump
The maintenance intervals of the vacuum pump can be defined
and reset under OPTIONS Æ Misc. Æ Vacuum Pump.
The following maintenance intervals can be selected: 100, 200,
300, 400, 500, 1000, 2000, 3000, 4000 hours. If the interval is set
to ∞ hours, the system will never display any maintenance
messages.
Fig. 49 Dialog box showing the maintenance intervals of the vacuum pump
5.7.7. Process
This dialog box can be opened under OPTIONS Æ Misc. Æ
Process. It is used to preset the type of process (see chapter 3).
The mimic diagram of the unit changes accordingly. If process B is
selected, the phase Manual freezing is no longer available
since the product is frozen outside the unit (e.g. in a deep-freeze).
The phase Manual cooling IC + warm-up VP is still
available in process B since it is used mainly to warm-up the
vacuum pump and to precool the ice condenser.
Fig. 50 Dialog box for selecting a process
Operating Manual Freeze Dryer ALPHA 1-4 LSC / ALPHA 2-4 LSC LSC Control System • 69