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Hot Air Oven
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Determination of various physical characteristics of different materials and
products at elevated temperatures may be carried out by heating the test
specimens to the appropriate temperature inside a constant temperature air
oven and determining the required characteristics with the specimens kept
under the same temperature. For this purpose the equipment needed for
conducting the determination can either be kept inside the oven along with the
test specimens, or, if this is not feasible because of certain constrains, by
taking the heated specimens out from the oven and conducting the test in still
air within the shortest possible span of time.
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Hot Air Oven |
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The PSI Hot Air Oven (Universal Memmert
type) with digital temperature controller has a test chamber of double walled
construction. The inner walls are made of aluminum sheet (or stainless Steel)
and outer walls of CRCA sheet. The space between the two walls is filled with
mineral wool for insulation. The chamber is fitted with three adjustable
perforated shelves for keeping the test specimen or the test equipment on.
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The oven is heated electrically with the help of
heaters placed in ribs on the bottom and sides of the chamber. An
air-circulating fan is provided on the back of the chamber for even
temperature distribution. The temperature inside the test chamber is indicated
and controlled with the help of a digital temperature indicator cum
controller.
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The chamber is provided with two ports with
adjustable openings for enabling natural change of air inside it by
convection. These ports can also be used for providing electrical access to
the test specimens kept inside the oven, if so desired.
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