Pfeiffer Vacuum Pascal 2033 C1, Руководство по эксплуатации

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EN – 32
Vapor pumping procedure • Isolate the pump from the system and increase the pump temperature, 30 minutes
with gas ballast ( see page 31 ).
• Start pumping and check the oil level:
- The oil level drops, oil is being lost, add oil in the pump.
- The oil level rises; condensates have been added into the oil.
• After pumping, let the pump running at ultimate pressure and condensates will be
separate from the oil.
- If the oil is cloudy or discoloured, change the oil.
- If the condendates are heavier than the oil, drain them by the oil drain port.
- If the condensates are lighter than the oil, drain the pump, flush the pump with
clean oil. Let the mixture to clarify, than recover the oil.
Pumping condensable
vapors (cont’d)