VACUUBRAND MV 2 VARIO - Manual (Page 6)

page 6 of 41
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.: 999035 / 15/12/2009
The controller is equipped with a short circuit proof transformer with an integrated
overload protection (no fuses).
The pump is equipped with a frequency converter which checks the electronic system
of the converter and of the motor of the pump extensively. The motor is protected by an
additional thermal cutout (see section ”Troubleshooting”).
☞ Failure of the pump (e. g. by power failure) or connected components, parts of the
supply or change of parameters (e. g. increase of pressure) must not lead to a
critical dangerous situation under any circumstances.
Attention: If the controller is operated in the basic setup TURBO•MODE, the pump
restarts automatically after a power failure. Ensure that no dangerous status of the
system due to the automatic startup of the pump (e.g. after a power failure) can occur
and provide appropriate safety measures.
Electronic equipment is never 100% fail-safe. This may lead to an indefinite status of
the equipment. Provide protective measures against misfunction and failure.
☞ Operating the pump with high or low frequency, stand still of the pump or operating
an optional air admittance valve must not lead to a critical dangerous situation
under any circumstances.
Ensure that in case of failure the pump and the vacuum system always will turn into a
safe status.
☞ In case of diaphragm cracks or leaks in the manifold pumped substances mighty
be released into the environment or into the pump housing. To reduce the risk of
leaks, ask for a diaphragm pump with additional safety diaphragm.
☞ Comply especially with notes on operation and use and maintenance.
Use only genuine spare parts and accessories.
☞ Otherwise safety and performance of the equipment as well as the electromagnetic
compatibility of the equipment might be reduced. Possibly the CE mark or the C/US
conformity becomes void if not using genuine spare parts.
The A-weighed emission sound pressure level of the pump does not exceed 70 dB(A).
Measurement according to EN ISO 2151:2004 and EN ISO 3744:1995 with standard
silencer or exhaust tube at outlet.
Ensure that maintenance is done only by suitable trained and supervised techni-
cians. Ensure that the maintenance technician is familiar with the safety procedures
which relate to the product processed by the vacuum system and that the equipment,
if necessary, is appropriately decontaminated before starting maintenance.
Comply with local and national safety regulations.
Wear parts have to be replaced regularly. In case of normal wear the lifetime of the
diaphragms and valves is > 10000 operating hours. Bearings have a typical durability
of 40000 h.
➨ Isolate equipment from mains and wait two minutes before starting mainte-
nance to allow the capacitors to discharge.
➨ Before starting maintenance, wait two minutes after isolating the equipment from
mains to allow the capacitors to discharge.
The motor is shut down by a thermal cutout in the winding.
☞ Attention: Manual reset is necessary. Switch off the pump or isolate the equipment
from mains. Wait approx. five minutes before restarting the pump.
☞ Attention: In case of supply voltage below 100V, the lock of the cutout might be
restricted and the pump might restart on its own after sufficient cooling down. Take
suitable precautions, if an automatic restart of the pump may lead to a critical
dangerous situation.