VACUUBRAND PC 2001TE VARIO - Manual (Page 15)

page 15 of 50
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.: 99 91 35 / 11/04/2008
For condensable vapours (water vapour, solvents, ...):
☞ Do not pump vapour before pump has reached its operating
temperature and with gas ballast valve closed.
☞ Open gas ballast valve. Close gas ballast valve by turning
180°.
☞ The gas ballast valve is open if the flash on the gas ballast
cap shows to the pump.
☞ With gas ballast valve open ultimate vacuum will be reduced,
pumping speed is decreased.
☞ Use inert gas at the air inlet to avoid the formation of explo-
sive mixtures.
In case of low boiling solvents when the formation of conden-
sate is unlikely, the use of gas ballast might be unnecessary.
☞ Operating the pump without gas ballast increases the sol-
vent recovery rates at the exhaust waste vapour condenser.
gas ballast
overpressure
safety relief
device
flask at the
outlet
flask at the
inlet
In case of condensation:
Both round bottom flasks are coated with a protective layer to
prevent disintegration in case of breakage or implosion.
➨ Check liquid level in both catchpots during operation. Avoid
overflowing of the catchpots.
☞ Do not overfill the catchpots. Maximum liquid level approx.
80%, to avoid problems when removing the catchpots.
➨ Check liquid level in both catchpots regularely and drain
catchpots in time.
figure condenser
inner part
☞ Separate the condenser inner part from the vacuum installa-
tion to drain the coolant if necessary.
Therefore remove the cap on top of the condesnser. Re-
move the condenser inner part: Turn it and lift. Comply with
regulations when disposing chemicals.
When reassembling check for correct position of the seal
between condenser inner and outer part.
Removing the catchpots:
Catchpot at outlet:
➨ Remove joint clip, remove catchpot and drain condensate.
Catchpot at inlet:
➨ Admit air or inert gas (via inlet of pumping unit) to atmospheric pressure. Remove
joint clip, remove catchpot and drain condensate.
➨ Reassemble drained catchpots.
Important: Comply with regulations when disposing solvents/condensates. Reuse if
possible, purify if contaminated.
Check overpressure safety relief device at the exhaust waste vapour condenser regu-
larly, replace if necessary.
☞ Check especially for conglutination and cracks.