Manual

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.: 01-005-005-36-1
page 16 of 35Translation of the original instructions
4 Use and operation
4.1 Installing in a vacuum system
➨ Ifthereisriskofreleaseofdangerousorpollutinguids,installanappropriate
systemtocatchanddisposeofthoseuids.
+ Connect an exhaust line gas tight at the pump outlet if necessary. Always dispose
of exhaust gases appropriately (e.g. into a fume hood).
+ Never block the gas outlet. The exhaust line must always be free of obstructions
(no back pressure) to ensure an unimpeded discharge of gas.
+ 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 safeness against clogging prior to use.
+ 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.
• 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.
• Connectionlinesatthepumpinlethavetobegastight.
• 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.
• Beforeswitchingoncheckthatmainsvoltageandcurrentconformwiththeequip-
ment (see rating plate).
• Checkthat thevoltage selection switch is set correctly. Unplug the equipment
before setting the voltage selection switch! Note: If the equipment is switched on
with wrong voltage selection, the equipment may be damaged!
Keep a distance of minimum 20cm between fan and ambient parts.
Avoid throttling losses by using connecting pipes with large diameter and keeping
them as short as possible.
Install outlet pipelines always falling to avoid backow of condensate towards the
pump.
Useofasuitablevalvetoisolatethepumpfromthevacuumsystemisrecommended
to allow the pump to warm up before pumping condensable vapors or to clean the
pump before it is switched off.
When assembling, ensure vacuum-tightness. After assembly, check the whole sys-
tem for leaks.
Secure hose connections at the pump appropriately against accidental detaching.
If exhaust noise is annoying, connect an exhaust hose.
NOTICE
voltage selection switch
”115”: 90-126 V~
”230”: 180-253 V~