LEYBOLD 960702FP, Оригинальная инструкция по эксплуатации

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300419816_002_C1 - 11/2016 - © Leybold
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NOTICE
NOTICE
A gas ballast kit Including all material required for changing the manual gas bal-
last flow to "small", "standard" or "big" is available: P/N 9 714 64 130
With the gas ballast valve open and at operating temperature, the SOGEVAC
®
can pump pure water vapor up to the water vapor tolerance indicated in the Tech-
nical Data. The pump’s water vapor tolerance can be increased by raising the
operating temperature.
Use a screwdriver to open the gas ballast valve. The running noise of the pump is
slightly louder when the gas ballast valve is open. Before opening the pump to
vapors, ensure that the gas ballast valve is open and that the pump has been
warmed up for about 30 minutes with closed intake line.
Do not open the pump to condensable vapors until it has warmed to operating
temperature; pumping process gas with a cold pump results in vapors condens-
ing in the oil.
For processes with a high proportion of condensable vapors, slowly open the in-
take line, after reaching the operating temperature to prevent excessive quantities
of vapor entering the pump.
One sign of condensation of vapors in the pump is a rise in the oil level during
operation of the pump.
During pumping, vapors may dissolve in the oil. This changes the oil properties
and causes a risk of corrosion in the pump. Therefore, do not switch off the pump
immediately after completion of the process. Instead, allow the pump to continue
operating with the gas ballast valve open and the intake line closed until the oil is
free of condensed vapors. We strongly recommend operating the pump in this
mode for about 30 minutes after completion of the process.
In cyclic process operation, the pump should not be switched off during the in-
tervals between the individual working phases, but should continue to run with
gas ballast valve open and intake port closed (if possible via a valve). Power
consumption is minimal when the pump is operating at ultimate pressure. Once
all vapors have been pumped off from a process (e.g. during drying), the gas
ballast valve can be closed to improve the ultimate pressure.
4.3 Working in cycles in / out
We recommend strongly to limit starting of the pump to 5 or 6 per hour. If the pro-
cess need it, we recommend utilization of a pneumatic or electromagnetic piloted
valve and to let the pump run continuously.
Operation