Section 6
Operation
Caution
Do not use in the presence of flammable or combustible materials
or explosive gases. Do not use in the presence of pressurized or sealed
containers - fire or explosion may result, causing death or severe injury.
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Caution
Do not heat any substance above a temperature which will cause
it to emit toxic fumes - death or severe injury may result.
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If it is necessary to set temperature before loading oven, push the power
switch ON and note that the power switch light is lit. Rotate the
thermostat knob to approximate the desired setting. The heater status lamp
will be steadily lit until the chamber temperature approaches the
thermostat setting. Wait several heat cycles until the temperature has
stabilized.
Check the thermometer and rotate the thermostat knob clockwise to raise
the set point, or counterclockwise to lower it. After oven temperature has
stabilized, check the temperature again and make further thermostat
adjustments until the thermometer consistently shows the desired
operating temperature. Push the power-switch OFF and allow the oven to
cool down, or, if a batch is ready, the oven can be loaded immediately.
The thermometer can be removed and put back after loading if that is
more convenient. Note that the thermometer sensing element must be in
direct contact with a shelf for an accurate reading.
For best results, distribute the load evenly in the chamber, at least 1 inch
away from chamber walls and resting directly on the shelves. DO NOT
PLACE FLAMMABLE SOLVENTS OR VAPORS in the oven and avoid
spilling acids. Be careful not to heat substances above their autoignition
temperatures.
While the oven door is open, apply high temperature vacuum grease to the
door gasket. Close the door and push the power switch ON. If oven
temperature was not previously set, review above at “TEMPERATURE
CONTROL” to set the desired operating temperature.
Vacuum Oven
6-1
VWR Collection
Temperature Control
Loading the Oven
