3
Installation
3.1
Conforming Utilisation
The
TURBOVAC
models are engineered to pump vacuum chambers down to
pressures in the high-vacuum range.
A TURBOTRONIK
frequency converter
and a forevacuum pump are required for the operation of the
TURBOVAC
.
The TURBOVAC 35 LS and 35 LS2 are only intended for integration into a
Helium leak detector.
These units are
not
suitable for operation without a forevacuum pump.
Turbomolecular pumps are
not
suitable for pumping either gases which con-
tain dust particles or liquids.
Turbomolecular pumps without a purge gas feature are suitable only for
moving air or inert gases. They are not suitable for pumping aggressive or
reactive gases.
TURBOVAC
versions identified with a “C” in the model number are equipped
with this purge gas feature, it protects only the bearing area and the motor in
the
TURBOVAC
.
3.2
Ambient Conditions
When using the
TURBOVAC
inside a magnetic field, the magnetic induction at
the pump housing surface may not exceed the following values:
TURBOVAC
50:
B = 7 mT
TURBOVAC
151 – 1000:
B = 5 mT in case of radial impingement
B = 15 mT in case of axial impingement
Provide suitable shielding measures if these values are exceeded.
The standard version is resistant to radiation at levels up to 10
3
Gy.
——————————————-
1 mT (milliTesla) = 10 G (Gauss)
1 Gy (Gray) = 100 rad
Installation
15
GA05118_1502 - 12/2006 - © Oerlikon Leybold Vacuum
Magnetic field
