Operating and maintenance instructions
EN
10
LI 2333.03
5.2 Operating vacuum range changing
Pumps of EU205 - EU300 series are fitted with a manual selector switch for the choi-
ce of the suitable working vacuum range:
· EU from 0.5 to 300 mbar
· EU/B from 10 to 850 mbar
In case the pump working range needs to be changed, please follow the instructions.
Remove the casing (Pos.89) by unscrewing the screws (Pos.52-92) to reach the tap
(Pos.109).
Position the selector switch horizontal for the EU type, position it vertical for the
EU/B one. The predetermined vacuum range is the one stated on the pump name
plate.
89
92
52
EU/B
109
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