Varian TV 801 Mode D'emploi page 55

GENERAL INFORMATION
This equipment is destined for use by professionals. The user
should read this instruction manual and any other additional
information supplied by Varian before operating the equipment.
Varian will not be held responsible for any events occurring due
to non-compliance, even partial, with these instructions, im-
proper use by untrained persons, non-authorized interference
with the equipment or any action contrary to that provided for
by specific national standards.
The TV 801 Navigator Bolted Flange is an integrated system
with a turbo-molecular pump for high and ultra-high vacuum
applications with its relevant controller. The system can pumps
any type of gas or gas compound. It is not suitable for pumping
liquids or solid particles. The pumping action is obtained
through a high speed turbine (max. 38000 rpm) driven by a
high-performance 3-phase electric motor. The TV 801 Naviga-
tor Bolted Flange is free of contaminating agents and, there-
fore, is suitable for applications requiring a "clean" vacuum.
It is equipped with auxiliary connectors to supply an additional
fan, to control the vent valve, to be controlled from a remote
site by means of an host computer connected through a serial
line (RS232 or RS485).
The following paragraphs contain all the information necessary
to guarantee the safety of the operator when using the equip-
ment. Detailed information is supplied in the appendix "Techni-
cal Information".
This manual uses the following standard protocol:

WARNING!
The warning messages are for attracting the attention of the
operator to a particular procedure or practice which, if not fol-
lowed correctly, could lead to serious injury.
!
The caution messages are displayed before procedures which,
if not followed, could cause damage to the equipment.
NOTE
The notes contain important information taken from the text.
STORAGE
In order to guarantee the maximum level of performance and
reliability of Varian Turbomolecular pumps, the following guide-
lines must be followed:
•
when shipping, moving and storing pumps, the following
environmental specifications should not be exceeded:
•
temperature range: -20 °C to 70 °C
•
relative humidity range: 0 to 90% (non condensing)
•
the turbomolecular pumps must be always soft-started
when received and operated for the first time by the cus-
tomer
•
the shelf life of a turbomolecular pump is 10 months from
the shipping date.
!
If for any reason the shelf life time is exceeded, the pump has
to be returned to the factory. Please contact the local Varian
Vacuum Sales and Service representative for informations.
PREPARATION FOR INSTALLATION
The TV 801 Navigator Bolted Flange is supplied in a special
protective packing. If this shows signs of damage which may
have occurred during transport, contact your local sales office.
When unpacking the system, be sure not to drop it and avoid
any kind of sudden impact or shock vibration to it.
Do not dispose of the packing materials in an unauthorized
manner. The material is 100% recyclable and complies with
EEC Directive 85/399.
CAUTION
CAUTION
In order to prevent outgassing problems, do not use bare
hands to handle components which will be exposed to vacuum.
Always use gloves or other appropriate protection.
Normal exposure to the environment cannot damage the TV
801 Navigator Bolted Flange. Nevertheless, it is advisable to
keep it closed until it is installed in the system, thus preventing
any form of pollution by dust.
INSTALLATION
Do not remove the adhesive and protective cap before con-
necting the turbopump to the system.
Install this device only in indoor ambient and in any case don't
use in an environment exposed to atmospheric agents (rain,
snow, ice), dust, aggressive gases, or in explosive environ-
ments or those with a high fire risk.
During operation, the following environmental conditions must
be respected:
−
maximum pressure: 2 bar above atmospheric pressure
−
temperature: from +10 °C to +45 °C
−
relative humidity: 0 - 90% (non-condensing)
In the presence of magnetic fields the pump must be protected
using a ferromagnetic shield. See the appendix "Technical In-
formation" for detailed information.
The TV 801 Navigator Bolted Flange must be connected to a
primary pump (see "Technical Information").
PUMP FIXING

If a rotor failure occurs, the connection of the pump to the sys-
tem could be subjected to a significant torque. If the connection
is not sufficient to withstand that torque, the pump could detach
from the system or the motor housing could detach from the
pump envelope. In this case metal fragments could be pro-
jected from the pump or system, which could cause serious
injury or death and/or damage to surrounding equipment.
Fix the TV 801 Navigator Bolted Flange in a stable position,
mounting the inlet flange of the turbopump to the system
counter-flange, with a connection capable of withstanding a
torque of 8900 Nm around its axis.
For example, this Bolted Flange can be fixed using high
strength steel screws (class higher than 8.8).
50
INSTRUCTIONS FOR USE
!
CAUTION
NOTE
!
CAUTION
WARNING!
87-900-980-01(B)