► Before working on the vacuum connection, wait until the rotor is at a complete standstill (rotation
speed f = 0).
► Do not carry out your own conversions or modifications on the vacuum pump.
► Before returning the vacuum pump, observe the notes in the chapter Service.
2.4 Product usage limits
Parameter
Okta G
Installation location
● Indoors, protected against:
─ dust deposits
─ falling objects
─ fire-fighting water
● Outdoors, protected against:
─ falling objects
─ direct influence of weather such as rain, splash water, strong
drafts and sunlight
─ fire-fighting water
─ lightning strike
Installation altitude
max. 2,000 m above sea level,
at installation altitudes > 1,000m above m.s.l. and an ambient tempera-
ture of 40 °C the rated power of the motor reduces by around 10 %
Ambient temperature
+5 °C to +40 °C
Relative air humidity
max. 85 % (depending on the motor version)
Gas temperature, pressure
side, max.
+140 °C
Intake pressure, max.
< 1,100 hPa (abs.)
Orientation
Horizontal
Tbl. 3:
Permissible ambient conditions
2.5 Proper use
► Use the vacuum pump for vacuum generation only.
► When pumping media with an oxygen concentration level of > 21 %, only use perfluorinated, syn-
thetic oils (F5) as lubricant.
► Depending on the process and if necessary, use sealing gas.
– Evacuating high-boiling media (e.g. solvents) degrades the lubricant.
► Operate the vacuum pump within application limits (see: Product usage limits and Technical data).
► Adhere to the installation, commissioning, operating, and maintenance instructions.
► Use only accessory parts recommended by Pfeiffer Vacuum.
2.6 Foreseeable improper use
Improper use of the product invalidates all warranty and liability claims. Improper use is any, even unin-
tended, use, which is contrary to the product purpose; and in particular:
● Transport, installation or operation of the vacuum pump in an impermissible spatial position
● Pumping media that can corrode or not be withstood by vacuum pump materials.
Components contained in the suction chamber are cast iron, steel, and stainless steel. Seals are
FKM (alternative seals available on request).
● Pumping explosive media
● Pumping radioactive media
● Pumping media prone to exothermic reactions
● Pumping media that introduce an ignition source to the suction chamber
Safety
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