VACUUBRAND BVC 21 NT VARIO - Manual (Page 13)

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.: 999157 / 10/12/2009
page 13 of 31
Use and operation
Installation
• It is imperative to remove the transportation lock prior to use! Tilt device care-
fully onto the side. Remove the four locking screws (wing screws) next to the fan
guard at the base plate. Put device back to normal operating position and keep
the locking screws.
• Make sure ventilation is adequate if equipment is installed in a housing or if ambi-
ent temperature is elevated. Keep a distance of minimum 20 cm between fans or
ventilation slots and ambient parts.
• Before switching on the equipment check that mains voltage and current
conform with the equipment!
Remove the protective foils from the fittings at the flask head and in case the protec-
tive covers from the inlet of the diaphragm pump, the solenoid operated valve (BVC
01) or the collecting bottle.
Assemble the connecting tube with filter between the bottle head and the inlet of
the diaphragm pump (BVC 21 NT / BVC 21 NT VARIO) or the inlet of the solenoid
operated valve (BVC 01).
Connect the aspiration tube of the VacuuHandControl VHC to the coupling at the
bottle head.
Connect the mains cable at the rear of the device (BVC 21 NT / BVC 21 NT VARIO)
or plug the mains cable into the pressure control device (BVC 01). Plug the IEC
socket of the solenoid operated valve (BVC 01) into the pressure control device.
If the pump is installed in altitudes of more than 1000 m above mean sea level check
compatibility with applicable safety requirements (motor may overheat due to insuf-
ficient cooling).
The device BVC 21 NT VARIO features an internal fuse under the cover hood. See
section ”Replacing diaphragms and valves” when removing the cover hood to check/
replace the fuse.
During operation
• Maximum ambient temperature: 40 °C
• Operate the system only with the integrated hydrophobic filter.
Protection of the pump against liquids and contamination.
Protection of the environment/user against contamination (risk of infection!).
The VHC allows the aspiration of excess liquids. See section ”VacuuHandControl
VHC” for operation method.
The pump achieves its pumping speed, ultimate vacuum and vapour pumping
rate only at operating temperature (after approx. 15 minutes).
Prevent internal condensation, transfer of liquids or dust. The diaphragm and valves
will be damaged, if liquids are transferred through the pump in significant amounts.
In case of excess temperature the motor is shut down by a thermal cutout in the
winding. Manual reset is necessary. Switch off the pump or isolate the equipment
from mains. Identify cause of failure and eliminate. Wait approx. five minutes before
restarting the pump.
NOTICE
NOTICE