VACUUBRAND MZ 1C - Manual (Page 37)

page 37 of 102
Avoid overheating (e.g., due to hot process
gases). Maximum permissible temperature
range: see “Gas inlet temperatures”, pg. 24.
In case of overload, the motor is shut down by
a self-hold thermal cutout in the winding.
Note: Only manual reset is possible. Switch
off the pump and disconnect from the power
source. Identify and eliminate the cause of fail-
ure. Allow the pump to cool down sufficiently
before restart.
°C / °F
I ➨ O
3.
2.
1.
NOTICE
!
• Note: In case of supply voltage below 100V, the lock
of the breaker may not latch and the pump might re-
start on its own after sufficient cooling. Take appropri-
ate precautions, if an automatic restart of the pump
may lead to a dangerous situation.
Make sure the fan’s air supply is adequate.
Check fan regularly for dust/dirt. Clean fan
guard grill if necessary to avoid a reduction of
ventilation.
NOTICE
A warm up period (approximately 15 min.) is
required to ensure that the rated ultimate vac-
uum, the pumping speed, and the full vapor
pumping rate (MZ 1C) are attained.
O ➨ I
m 3 /h
Torr/mbar
✔
✔
~15min
air
✘
NOTICE