Operating Instructions DFO/DFI Series Mechanical Convection Ovens/Incubator
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The minimum distance to the wall, furniture or other installations shall be 300mm.
No hoarding of flammable or temperature sensitive materials nearby!
No overhead fire sensors in avoidance of triggering of an erroneous fire alarm!
Connect the opening to an extraction system if the operating of the oven could lead
to liberation of hazardous air or gas mixture! The rating of the connection shall be at
least the maximum possible exhausting temperature! If necessary additional
temperature limiting and warning devices shall be installed for the extraction system!
Hazards of burn or fire!
Exhausting temperature of the ventilator may be extremely high. Do not touch or
approach!
Keep clear of any flammable or temperature sensitive materials away from the
exhausting hot air!
Regular check of the air tightness of the ventilator is necessary for efficient and safe
operation of the oven. Intervals of 3 months for normal use, or the first time
powering up after repairing or standstill for long period, are recommended.
2.2.3 Interior view
（
Fig 3
）
Fig 3 Interior view
①
Wire shelves
②
Clips for wire shelf
③
Outlets of back plenum
④
Inlets of bottom plenum
Remove ties, if any, for wire shelves before powering on. Adjust the height of shelves for ease of
operation. Keep clear of specimen away from inlets of the bottom and outlets of the back
plenums. Any obstacle of air circulation may cause problem of temperature regulation, localized
overheating, or damage of the specimen and equipment.
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