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Description
12
GA10218_002_A7 - 9/2015 - © Oerlikon Leybold Vacuum
1.1.3 Vacuum Diagram PHOENIX L300i MODUL
The PHOENIX L300i MODUL has no roughing pump integrated as the other mod-
els. Therefore it can be used with an external pump only. This pump can be oil
sealed or a dry version with a roughing capacity between 2.5 and 65 m
3
/h. This
pump has to be connected to the DN25 KF at the side or under the bottom of the
PHOENIX L300i MODUL.
Pos. Description
1
MS: Mass Spectrometer, Helium sensor (180° magnetic field mass
spectrometer)
2
Turbo molecular pump (TMP, provides high vacuum conditions in
the MS)
3
Pirani gauge P2 (fore vacuum pressure)
4
Diaphragm pump (provides the fore vacuum pressure for the TMP
and pumps down the parts under test)
5
Inlet Port
6
Pirani gauge P1 (inlet pressure)
V1 … V7: Electromagnetic Valves to control the gas flows
Fig. 4 Vacuum diagram PHOENIX L300i MODUL
MS
P
1
V
1
V
2a
V
3
V
2b
V
6
P
2
V
4a
external pump
V
5
V
7
1
2
4
5
3
6