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.: 999155 / 29/01/2009
page 5 of 36
• Check that mains voltage and current conform with the equipment (see rating
plate).
• Change the setting of the voltage changeover switch (pump with dual-voltage
motor) only if the pump is separated from mains. Check that the voltage changeo-
ver switch is set correctly.
Attention
: If the pump is switched on with wrong volt-
age selection, the motor might be damaged!
• Due to the high compression ratio of the pumps, pressure at the outlet port might
be generated being higher than the maximum permissible pressure compatible
with the mechanical stability of the system.
• 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 and ambient parts (e.g. housing,
walls, ...). Check fan regularly for dust/dirt, clean if necessary 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”).
Operating conditions
➨
The pumps have no approval for operation in or for pumping of potentially
explosive atmospheres.
➨
The pumps are
not suitable
to pump
- unstable substances
and substances which react explosively under
impact
(mechanical stress) and/or when being exposed to
elevated
temperatures
without air.
NOTICE
NOTICE
