Freeze-dryer Alpha 1-2 LSCbasic
5 Set-up and connection
44 / 111
Version 07/2022, Rev. 1.0 of 19/07/2022
• sb-ja
Translation of the original operating manual
The oil mist that escapes from the pump during operation must be retained
or discharged via an exhaust filter (oil mist separator).
• We strongly recommend using an oil mist separator. The filter prevents
air pollution by the oil mist that is emitted more or less strongly by the
pump depending on the working pressure.
• The exhaust gases must be discharged in a proper manner.
• The hose line must be laid in such a manner that any condensation
water cannot flow back into the pump. In the case of a rising hose line,
we recommend using a condensate trap (Woulff bottle or wash bottle).
5.6
Use of an interface box
The current consumption of certain vacuum pumps is higher than what is
permissible for use with the freeze-dryer (see the label stating the
maximum current values for the vacuum pump at the IEC C13 connector,
illustration above). These pumps must be provided with power via a
customer-provided power outlet and they must be operated separately.
Alternatively, they can be connected to the freeze-dryer via the interface
box. The advantage of the interface box is that, in this case, the vacuum
pump can be controlled/actuated via the freeze-dryer.
Its connection requires separate dedicated circuits and power sockets for
the freeze-dryer and for the interface box.
Connection of the interface box
Fig. 14: Connection of the interface box (schematic diagram)
