Vacuum Oven
1-1
VWR Collection
Section 1
Description
VWR Collection Vacuum Ovens are designed for drying media under
carefully controlled conditions - in a normal atmosphere, a vacuum of up
to 30 inches Hg, or an inert gas atmosphere.
The oven is primarily used for desiccating, vacuum embedding, plating
and electronic component processing. Non-corrosive, nonflammable gases
such as nitrogen and carbon dioxide can be used in the oven.
All controls and connections (except electrical power) are located on the
front vertical panel - these include lighted power switch, vacuum gauge,
temperature control, vacuum control valve and nickel-plated hose
connectors.
Uniform radiant wall heat, with no internally exposed heaters, optimizes
chamber space. 3” (76mm) of glass wool insulation throughout helps
maintain temperature uniformity effectiveness. Temperature is controlled
by a hydraulic thermostat and can be read on the dial thermometer.
The chamber of the unit is not designed for exposure to concentrated
solvents, oils, concentrated acids or dilute sodium hydroxide.
Vacuum levels are precisely held between 0” and 30” of mercury.
The silicone door gasket assures a tight seal at all vacuum levels. A high
strength tempered glass window allows full view of oven contents. Two
aluminum shelves provide good heat conduction to samples. The shelf
assembly removes for easy cleaning.
Note
When operating in a vacuum, there is no transfer of heat from the
evacuated chamber interior to objects within the chamber unless they are
resting directly upon one of the shelves - do not put insulating material
between a shelf and a vessel being heated. Also, be sure that a
thermometer’s sensor element is in direct contact with the surface of the
center shelf when taking a reading.
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