User guide

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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.: 999248 / 28/04/2011
4 Use and operation
4.2 Installing in a vacuum system
• Connectionlinesatthepumpinlethavetobegastight.Particlesanddustmust
notbeaspirated,theuserhastoprovideappropriateltersifnecessary.Theuser
mustensuretheirsuitabilityconcerninggasow,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uids,installanappropriatesystemtocatchanddispose
ofthoseuids.
• Reducethetransmissionofvibrationandpreventloadingduetorigidpipelines.
Insertelastichosesorexibleelementsascouplingsbetweenthepumpandrigid
pipes. Attention:Flexibleelementstendtoshrinkwhenevacuated.
• 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uninten-
tional ventilation of the pump and the vacuum system. In case this constitutes a
potentialsourceofdanger,takeappropriatesafetymeasures.
• Makesureventilationisadequateifthepumpingunitisinstalledinahousingor
ifambienttemperatureiselevated.Provideexternalventingifnecessary.Keepa
distance of minimum 20cm between fan and ambient parts.
Whenswitchingonthecontrollerfortheveryrsttime,amenutoselectthelanguageofthecontroller
menu is displayed. Select the desired language (e.g. ”English”)byturningtheselectionknobandpress
toconrm.Thenselectthepressureunit(”mbar”, ”Torr” or ”hPa”) in the same way.
It is possible to access the language selection menu at any time by switching on the controller
while keeping the selection knob pressed.
4.1 Using a ROTACOOL reux cooler
If using the ROTAVAC vario Pumping unit together with
theROTACOOLreuxcooler,placetheROTAVACvario
Pumping unit directly on top of the ROTACOOL.
If using the ROTAVAC vario Pumping unit without the
ROTACOOL reux cooler, an extra foot has to be in-
stalled for operation with the condensate cooler (14; in-
cluded in the scope of delivery of the condensate cool-
er). Position the ROTAVAC vario Pumping unit simply
ontheextrafoot,therebyplacingthepump’sfeetinthe
fourhollowsoftheextrafoot.
Install the coolant hoses in such a way that the stability
of the pump is assured even with a full catchpot