VACUUBRAND PC 3001 VARIO emission condenser Peltronic - Manual (Page 48)

page 48 of 120
the silencer regularly and replace if necessary.
A temperature sensor at the circuit board protects the mo-
tor: Current limitation in the event the temperature at the
circuit board raises above 158°F (70°C). At temperatures
above 185°F (85°C) the pump is switched off. In the event
of a motor blockage (after 10 start-up attempts) the pump
is switched off.
Note: Only manual reset is possible. Disconnect the pump
from the power source. Identify and eliminate the cause of
failure.
Check ventilation slots regularly for dust/dirt. Clean if nec-
essary. Avoid overheating (e.g., due to hot process gas-
es).
A warm up period (approximately 15 min.) is required to
ensure that the rated ultimate vacuum and pumping speed
are attained.
Important notes regarding the use of gas bal-
last
Gas ballast is a continuous purge to keep the pump’s in-
terior as clean as possible and to reduce the possibility of
condensation inside the pump.
➨
Air and pumped media might react inside the pump or
at the outlet of the pump and form hazardous or explo-
sive mixtures, when you use air rather than inert gas
for the gas ballast. This constitutes a risk of significant
damage to equipment and/or facilities, a risk of person-
al injury or even loss of life.
+
Make sure that air/gas intake through the gas ballast
valve can never lead to hazardous, explosive or other-
wise dangerous mixtures. If in doubt, use inert gas.