VACUUBRAND MV 10 NT VARIO - Manual (Page 40)

page 40 of 126
In case of overload, the motor is shut down by
a self-hold thermal cutout in the winding.
Note: Only manual reset is possible. Press the
START/STOP key at the controller to confirm
the error message. Switch off the pump and
disconnect from the power source. Identify and
eliminate the cause of failure. Allow the pump
to cool down sufficiently before restart.
°C / °F
I ➨ O !
3.
2.
1.
IN
✘
Avoid overheating (e.g., due to hot process
gases). Maximum permissible temperature
range: see ”Gas inlet temperatures”, pg. 27.
Make sure the fans’ air supply is adequate.
Do not place the pump on soft surfaces (e.g.,
rubber foam) during operation. This may re-
duce 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.
air
air
A warm up period (approximately 15 min.) is
required to ensure that the rated ultimate vac-
uum and pumping speed are attained.
O ➨ I
m 3 /h
Torr/mbar
✔
✔
~15min
Prevent internal condensation, transfer of liq-
uids or dust. The diaphragms and valves will
be damaged, if liquids are pumped in signifi-
cant amounts.
Check the pump regularly for external soiling
and deposits. Clean the pump if necessary
to avoid an increase of the pump’s operating
temperature.
NOTICE
IN
✘
condensate / dust
NOTICE
NOTICE
NOTICE