VACUUBRAND PC 3001 VARIO emission condenser Peltronic - Manual (Page 49)

page 49 of 120
To reduce condensation in the pump, do not pump vapor
before the pump has reached its operating temperature.
Open the gas ballast valve when pumping condensable
vapors. Turn gas ballast cap to open valve.
For condensable vapors (water vapor, sol-
vents, etc.):
- The gas ballast valve is open if the arrow on
the gas ballast cap is pointing towards the
pump.
- With gas ballast valve open, the ultimate
vacuum will be reduced.
- Use inert gas for gas ballast to avoid the formation of
explosive mixtures. Attention: maximum supply pres-
sure of inert gas: 17.5 psi (1.2 bar) absolute.
- Close the gas ballast valve by turning the cap 180°.
In case of low boiling solvents (when the formation of con-
densate is unlikely), the use of gas ballast might be unnec-
essary. Operating the pump without gas ballast increases
the solvent recovery rate at the exhaust waste vapor con-
denser.
Important notes concerning the operation of
the exhaust waste vapor condenser
➨
Connect the exhaust to a suitable treatment system to
prevent the discharge of dangerous gases and vapors
to the surrounding atmosphere.
+
Never block the gas outlet ((6) hose nozzle for tubing
I.D. 3/8” (10 mm)). The exhaust hose must always be
unobstructed and without back-pressure to enable an
unhindered discharge of gases.
+
Check the overpressure safety relief device (17) at the
exhaust waste vapor condenser (9) regularly; replace if
necessary. Check especially for deterioration, coales-
cence and cracks.
NOTICE
gas
ballast