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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.: 999290 / 12/12/2016
• All connection lines at the pump (e. g. inlet, outlet, gas ballast connection, inert
gas connection) have to be performed
conductive grounded
.
• Connect pump and all connected components to ground.
• Avoid contact of the pump with
rusty metal parts
, e. g. by positioning the pump
with sufficient distance to surrounding parts.
• The pump is designated for a low degree of mechanical stress. Protect the pump
from damage and beats. In case of damage switch off the pump immediately,
check leak rate if necessary.
• Connection lines at the pump inlet have to be gas tight. Particles and dust must
not be aspirated, the user has to provide appropriate filters if necessary. The user
must ensure their suitability concerning gas flow, chemical resistance and safe
-
ness against clogging prior to use.
• Connect an exhaust line gas tight at the pump outlet if necessary. Always dispose
of exhaust gases appropriately (e.g. into a fume hood). If there is risk of release of
dangerous or polluting fluids, install an appropriate system to catch and dispose
of those fluids.
• Reduce the transmission of vibration and prevent mechanical load due to rig
-
id pipelines. Insert elastic hoses or flexible elements as couplings between the
pump and rigid pipes.
Attention:
Flexible elements tend to shrink when evacu-
ated.
• Use of a suitable valve to isolate the pump from the vacuum system is recom
-
mended to allow the pump to warm up before pumping condensable vapours or
to clean the pump before it is switched off.
• The gas outlet must never be blocked. The exhaust line has always to be free
(pressureless) to ensure an unimpeded discharge of gas.
• Especially if the gas ballast valve is open, a power failure may cause accidental
ventilation of the pump. In case this constitutes a potential source of danger, take
appropriate safety measures.
• Make sure ventilation is adequate especially if the pump is installed in a housing
or if the ambient temperature is elevated. Provide external ventilation if neces
-
sary. Keep a distance of minimum 20 cm between fan and ambient parts.
Avoid throttling losses by using connecting pipes with large diameter and by keeping
them as short as possible.
In case of perturbing exhaust noise connect an exhaust hose.
Install outlet pipelines always falling to avoid backflow of condensate towards the
pump.
When assembling, ensure
vacuum-tightness
. After assembly, check the whole sys-
tem for leaks.
Secure hose connections at the pump appropriately against accidental detaching.
Attach the pipelines of the coolant circuit to the respective hose nozzles (hose noz-
zles 6-8 mm, see image) at the vapour condenser. Check hose connections prior to
starting operation of the cooling system.
Secure coolant hoses at the hose nozzles (e.g. with hose clip) to prevent their ac-
cidental slipping.
Use and operation
Installing in a vacuum system
NOTICE
NOTICE
