Notice – VACUUBRAND PC 3012 VARIO User Manual
Page 8
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.: 999164 / 19/05/2009
Provide appropriate protective measures (i.e. precautions which allow for the re-
quirements of the respective application) even for the case of failure and
malopera-
tion mode.
Failure of the pump (e.g. due to power failure) or of connected components, parts
of the supply or change of parameters must not lead to a critical dangerous situa-
tion under any circumstances. In case of diaphragm cracks or leaks in the manifold
pumped substances might be released into the environment or into the pump hous-
ing or motor. Comply especially with notes on operation and use and maintenance.
Due to the residual
leak rate of the equipment, there might be an exchange of gas,
albeit extremely slight, between the environment and the vacuum system.
Adopt suitable measures to prevent contamination of the pumped substances or the
environment.
In case of overload the motor is shut down by a
thermal cutout in the winding.
Attention: Reset possible only manually. Confirm error message at controller by
pressing key START/STOP or switch off the pump or isolate the equipment from
mains. Identify and eliminate the cause of failure. Wait approx. five minutes before
restarting the pump.
• Comply with applicable regulations when disposing of chemicals. Take into con-
sideration that chemicals may be polluted.
Take adequate precautions to protect people from the effects of dangerous sub-
stances (chemicals, thermal decomposition products of fluoroelastomers), wear
appropriate safety-clothing and safety glasses.
• Check the overpressure safety relief device at the exhaust waste vapour conden-
ser in appropriate intervals.
• Use only
genuine spare parts and accessories. Otherwise safety and perform-
ance of the equipment as well as the electromagnetic compatibility of the equip-
ment might be reduced. Possibly the CE mark or the C/US conformity becomes
void if not using genuine spare parts.
• Starting of the NT VARIO or VARIO-B pump, switching of a coolant valve or open-
ing of a venting valve by the controller must not lead to a dangerous situation
under any circumstances.
•
Attention: If Autostart is preselected, the process starts immediately after a
power failure without pressing any further key. It is the user’s responsibility to
ensure that no dangerous status of the system due to the automatic start-up can
occur and to provide appropriate safety measures. If necessary, the user has to
check
prior to starting the process whether the option ”Autostart” (menu: con-
figuration) is enabled.
Do not start the pump if the pressure difference between inlet and outlet port ex-
ceeds 1.1 bar at maximum.
Prevent the backpressure of gases and the backflow of condensates. Never suck
liquids or dust into the pump.
Check liquid level in both catchpots regularly and drain condensate in time. In case,
install level sensor (see “Accessories“).
NOTICE
☞
Attention: In case of pressures above approximately 1080 mbar the pressure
reading gets incorrect (saturation of the pressure transducer). The display flash-
es.
Immediate pressure relief necessary! Risk of bursting!