VACUUBRAND MV 10 NT VARIO - Manual (Page 16)

page 16 of 126
• Comply with maximum permissible pressures at the
pressure transducer. See section “Technical data”, pg.
26.
• Avoid overpressure of more than 17.5 psi absolute (1.2
bar absolute) in the event that inert gas is connected to
the pump, or to a venting valve.
• Note: Flexible elements will shrink when evacuated.
• Connect hoses gas tight at inlet and outlet of the pump.
• Connect hoses gas tight at the pressure transducer.
• Ensure that no foreign objects can be drawn into the
pump.
• Check the power source and the pump’s rating plate
to be sure that the power source and the equipment
match in voltage, phase, and frequency.
Make sure ventilation is adequate to maintain recommend-
ed operating temperature. Keep a minimum distance of
2 in (5 cm) between the cooling fan and surrounding items
(e.g., housing, walls, etc.), or else install an external au-
tomatic ventilation system. Do not place the pump on soft
surfaces (e.g., rubber foam) during operation. This may
reduce the air circulation in the pump housing and affect
the fans’ cooling effect. Check fans regularly for dust/dirt.
Clean fan guard grills if necessary to avoid a reduction of
ventilation.
Position the pressure transducer and its vacuum line in
such a way that condensate cannot flow towards the pres-
sure transducer.
Use only hoses at the inlet and outlet of the pump with
an inner diameter at least as large as the diameter of the
pump’s tubing (to avoid overpressure at the outlet, and
reduction of pumping speed at the inlet).
NOTICE