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CombiFlash® Rf
User Manual
supply vessels first, followed by the level sensing lines. If
the solvent sense line is placed into the container first,
with some containers, there will be insufficient room
remaining to insert the solvent supply filter. If the solvent
lines are unable to reach the supply container (such as
when placed below the work surface), the clamp that
retains the tubing above the inlet ports can be removed.
The solvent lines can be rotated in their fittings by
loosening the fitting nut. If the nut has been loosened, be
sure it is properly tightened to prevent air leakage into the
fluid connection.
4. Place the waste lines in a suitable waste container.
Note
When using higher-density solvents such as dichloromethane
(DCM), place the solvent container level with or above the
CombiFlash Rf system. Placing solvent containers below the level
of the system can contribute to decreased flow due to the high
vapor pressure of DCM. This problem becomes more pronounced
as the ambient temperature increases.
2.7 External Gas
2.7.1 CombiFlash Rf
The CombiFlash Rf
internal air pump to provide compressed air for solvent and
waste level sensing. Optionally, the system can deliver a
compressed gas. Inert or other gases may be more suitable
than air for some applications.
If ambient air is compatible with your solvents and waste,
simply leave the Optional External Gas port open.
If you want to use a gas instead of air, connect user-supplied
1
" I.D. tubing to the Optional External Gas port. Connect the
8
other end to the user-supplied compressed gas. The external
compressed gas should be dry, filtered, and regulated to 2–5
psi (0.14–0.34 atm, 13.8–34.5 KPa).
2-10
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, Rf
Lumen, and EZ Prep
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, Rf
Lumen, and EZ Prep systems use an
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