VACUUBRAND PC 600 LAN NT - Manual (Page 37)

page 37 of 102
Do not start the pump if the pressure difference between
inlet and outlet ports exceeds max. 16.0 psi (1.1 bar).
Attempts to start the pump at higher pressure difference
may cause stalling and damage of the motor.
If pumping condensable vapors (water vapor, solvents,
etc.), let the pump run with gas ballast to help purge any
condensation in the pump.
Prevent internal condensation, transfer of liquids or dust.
The diaphragms and valves will be damaged, if liquids are
pumped in significant amounts.
Check the pump regularly for external soiling and depos-
its. Clean the pump if necessary to avoid an increase of
the pump’s operating temperature.
In case of overload, the motor is shut down by a self-hold
thermal circuit breaker in the winding.
Note: Only a manual reset is possible. Switch off the
pump and disconnect the electrical power cord. Identify
and eliminate the cause of failure. Wait approximately five
minutes before restarting the pump.
• 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.
A warm up period (approximately 15 min.) is required to
ensure that the rated ultimate vacuum and pumping speed
are attained. Avoid overheating (e.g., due to hot process
gases).
Important notes regarding the use of gas bal-
last
Gas ballast is a continuous purge to keep the pump’s in-
terior as clean as possible and to reduce the possibility of
condensation inside the pump.
NOTICE
NOTICE