Buchi Vacuum Pump V-710 Manual do Utilizador descarregar pdf (Página 19)

4 Description of function

19 V-700/710 Operation Manual, Version E

4.1.4 Gas ballast

The gas ballast serves to aerate the system (membrane and valves) during pump operation, thus

avoiding the collection of condensed solvent within the system.

NOTE

The end vacuum is reduced to about 24 mbar when the gas ballast is open. The air stream due to

the open gas ballast dries wet membranes, therefore close the gas ballast when the membranes are

dry to reach a low end vacuum.

Fig. 4.4: Gas ballast shown open on the picture on the left and closed on the picture on the right

4.2 Vacuum Controller V-850/855

4.2.1 Control keys of Vacuum Controller V-850

2 2 2

a Selection knob

b Functional buttons

c Display

d START button

e STOP button

Fig. 4.5: Overview of the vacuum controller

1 2 ... 14 15 16 17 18 19 20 21 22 23 24 ... 57 58

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Buchi Vacuum Pump V-710 Manual do Utilizador Página 19