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NOTICE
NOTICE
Documents are only to be used and distributed completely and unchanged. It is strictly the users' responsibility to check carefully
the validity of this document with respect to his product. Manual-no.: 9997832 / 03/02/2009
•
Comply with maximum permissible pressures at inlet and outlet and pressure
differences, see section "Technical data". Do not operate the pump with overpres-
sure at the inlet.
•
Check that mains voltage and current conform with the equipment (see rating
plate).
•
Direction of rotation of pumps with three phase motor: Pumps wired ready for
connection with three phase motor are supplied with a mains plug. The electrical
wiring is laid out for a right-handed rotary field.
Checking the direction of rotation:
The three phase socket has to be checked and if necessary corrected by an elec-
trician. Otherwise the performance of the pump might be reduced.
•
Avoid overpressure of more than 0.2 bar in case inert gas is connected.
•
Connect pipes gas tight at inlet and outlet of the pump.
•
Attention: Flexible elements tend to shrink when evacuated.
Provide a firm level platform for the equipment and check that the system to be
evacuated is mechanically stable and that all fittings are secure. Ensure a stable po-
sition of the pump without any mechanical contact except of the pump feet. Comply
with all applicable safety regulations.
Keep a distance of minimum 20 cm between fan (underside the pump) and ambient
parts (e.g. housing, walls, ...). Make sure the air supply for the fan is adequate. Do
not place the pump on soft surfaces (e.g. rubber foam) during operation. This may
cut back or block the fan's air supply. Check fan regularly for dust/dirt, clean if neces-
sary to avoid a cutback of ventilation.
If the equipment is brought from cold environment into a room for operation, allow
the equipment to warm up (pay attention to water condensation on cold surfaces).
The diameter of the inlet and outlet pipeline should be at the least as large as the
diameter of the pump connection pipelines.
Comply with all applicable and relevant safety requirements (regulations and guide-
lines), implement the required actions and adopt suitable safety measures.
Ambient conditions
To the best of our knowledge the equipment is in compliance with the requirements
of the applicable EC-directives and harmonized standards (see "Declaration of con-
formity") with regard to design, type and model. Directive IEC 1010 gives in detail
conditions, under which the equipment can be operated safely (see also IP degree
of protection).
Adopt suitable measures in case of differences, e. g. using the equipment outdoors,
installation in altitudes of more than 1000 m above mean sea level, conductive pol-
lution or bedewing.
Pay attention to the permissible maximum ambient and gas inlet temperatures
(see "Technical data").
page 5 of 26
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