INSTRUCTION MANUAL
7/16
87-900-977-01(C)
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.
DS42 pumps are dual-stage, rotary vane pumps oil sealed,
driven by a single-phase electric motor.
These high vacuum pumps are suitable for pumping non corro-
sive gases.
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.
CAUTION
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
When transporting and storing the pumps, the following envi-
ronmental requirements should not be exceeded:
−
temperature: from -15° to +60 °C
−
relative humidity: 0 - 95% (non-condensing)
PREPARATION FOR INSTALLATION
The pump is supplied in a special protective packing. If this
shows signs of damage which may have occurred during trans-
port, contact your local sales office.
Total weight of the pack, including the pump, is approx. 13 Kg.
When unpacking the pump, 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.
NOTE
Normal exposure to the environment cannot damage the pump.
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 install or use the pump in an environment exposed to
atmospheric agents (rain, snow, ice), dust, aggressive gases,
or in explosive environments or those with a high fire risk. Dur-
ing operation, the following environmental conditions must be
respected:
−
temperature: from +12 °C to +40 °C
−
relative humidity: 0 - 95% (non-condensing)
WARNING!
Protect against short circuits and overload by installing on Var-
ian Device electrical main line an automatic circuit breaker of
proper capacity (see table here below):
P/N
110 Vac
220 Vac
949-9308 4
A
949-9309
2.5
A
CAUTION
Before starting the pump, fill up with lubricating oil as the pump
is delivered empty.
WARNING!
Take out the protective caps on the suction and exhaust
flanges before doing anything else. In the event of an acciden-
tal start-up, the air inside the pump could violently expel the
protective caps and harm the operator.
WARNING!
During installation, pay maximum attention that the suction
flange is connected to the vacuum chamber and the exhaust
flange is not closed (see the following figure).
The pump must not be used as a compressor.
Maximum pressure inside the oil container must not exceed 1.5
bar (abs.)
Non-observance of these precautions may be dangerous for
the machine and the operator.
