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4 Operation
4.1 Sequence of
Operation
4.2 Emptying the Glass
Thermo Fisher Scientific
After preparing the unit as described in Section 3 on page 2, switch it ON.
The power switch is located on the left side of the RVT5105. An amber
LED on the front illuminates when power is on.
It may take up to 90 minutes for the trap fluid to reach its operating
temperature. When this occurs, you may begin drying operations as
outlined in the instruction manual of your drying apparatus.
The RVT5105 Refrigerated Vapor Traps are designed to operate
continuously and may be left on for extended periods. Be sure to regularly
check the glass trap or flask and empty it as required. For maximum
efficiency, replace with clean vessel when not more than half full (see Section
3.1).
The RVT5105 operates in the following sequence. When you switch the
RVT5105 ON, an amber LED located on the front panel will illuminate.
The unit starts up and both the fan and compressors can be heard. When
the trap temperature reaches -75°C (approximately 60mins), a green LED
also located on front panel illuminates to indicate that trap is ready to be
used. Ultimate trap temperature, -105°C, typically will be reached in
approximately 90 minutes. During operation, the trap temperature may rise
because condensing and freezing solvent vapors cause transfer of heat into
the trap.
Vessels are available separately and are described in Sections 3.4 and 3.5.
Vessel
During system operation, solvent vapors from the SpeedVac will collect in
the glass vessel. The vessel must be regularly emptied to keep the entire
system operating at peak efficiency. If the vessel is not maintained, it may
become so full that sample drying rate is adversely affected. Another
consequence of a full vessel is that solvent vapors are more likely to
contaminate and possibly damage an oil-sealed vacuum pump that may be
used with the SpeedVac system.
Empty the glass vessel before it is half full. Often it is convenient and good
practice to change the vessel at the end of the workday or workweek, no
matter the depth of fill. For aggressive solvents, you may wish to remove the
vessel at the end of each run for maximum protection of the system
components.
CAUTION!
temperatures that can cause severe damage to unprotected skin.
Wear protective gloves and clothing when removing glass vessels.
Refrigerated vapor traps reach low operating
Operation
8
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