Agilent Technologies TV 1001 SEM Notice De Mode D'emploi page 243

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The Macrotorr stages are in the form of four discs.
The turbine rotor is supported by permanently lubricated high precision
ceramic ball bearings in-stalled on the forevacuum side of the pump. The static
blades of the stator are made of stainless steel. These are supported and
accurately po-sitioned by spacer rings.
The Macrotorr stators are in the form of self-positioning machined discs with
pumping channels and an opening restricted by the corresponding rotor discs.
These are made of aluminium alloy.
The pump can be water cooled or air cooled: in the first case the customer can
use the dedicated channels on the pump body, in the second case an external
optional fan is available.
A thermistor sensor is mounted near the upper bearing to prevent the pump
from overheating.
The pump is balanced after assembly with a residual vibration amplitude,
measured at the pump's envelope, less than 350 mm/sec
The pump can operate in any position and can be supported on the high
vacuum flange. The connection of the forevacuum on the side of the pump is a
KF 40 NW flange for the models 7698931 and 8698946, a KF 25 NW flange for
the model 8698932.
TV 1001 SEM User Manual / 87-900-973-01 (H)
1st stage with a blade angle of 40°,
2nd stage with a blade angle of 34°,
3rd stage with a blade angle of 28°,
4th and 5th stages with a blade angle of 24°,
6th stage with a blade angle of 20°,
7th and 8th stages with a blade angle of 16°.
Technical Information
Description of the TV 1001 SEM
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