4 Operation
4.1 Media compatibility / purge gas
The TURBOVAC is suitable for pumping air and clean gases.
If reactive gases in low concentrations must be pumped operate the pump
with purge gas.
We would be glad to consult with you as regards the media which can safely
be handled with this unit.
Install a micropore filter when pumping media which contains dust.
Suited for venting or purging are all gases,
■
which will not cause corrosion or pitting in aluminium and steel and
■
which in connection with process deposits in the pump will not cause cor-
rosion or sticking.
For venting and as the purge gas we recommend inert gases like nitrogen or
argon. The temperature of these gases should be between 5 °C and 80 °C,
max. relative humidity should not exceed 10 ppm.
The gas must be clean.
In individual cases and after consultation also dry, filtered, oil-free air or fil-
tered ambient air may be used (filter mesh < 1µm).
Change the filters after some time, at least annually.
4.2 Start-up
Turbomolecular pumps which were not operated for a period of over 12
months should be returned to us. For more information on this please con-
tact your local sales partner.
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