Yamato Scientific DN410I Inert Oven - Manual (Page 17)

11
Caution about the temperature range.
Use the oven in the range of 40°C to 210°C.
When you use the oven for the first time
During the initial operation, the oven may occasionally generate an odor especially
when high temperatures are reached. This odor is normal and does not signal a
problem with the oven. The adhesive on the insulation melting causes the nature of
the odor.
About the temperature in the chamber
Temperature display indicates the sensor temperature installed in the unit, however it
does not always correspond to the temperature of the sample when the sample
volume is very large or when the temperature is on the increase.
Caution about a drenched sample
z When using a very wet sample, try to drain it as much as possible before putting it
in chamber.
Caution about a powdery sample and the loading of samples
There are times when a powder sample is scattered by the sudden decompression
operation or purge operation. When performing decompression or purge, open the
valve very slowly.
It occasionally takes a long time before the chamber reaches the target temperature if
the camber is congested with samples or a sample with the large specific heat is in it.
In such cases, reduce samples. Moreover, note that the temperature display
occasionally unsettle when you process an exothermic sample.
Distribute samples
z Each shelf can carry a uniform load of 15 kg (33 lb.). When you place samples
on a shelf, distribute them evenly over the shelf area.
z If a shelf is congested with samples, the oven occasionally cannot regulate
temperatures properly. To ensure the oven’s temperature accuracy, there should
be open space of at least 30% on each shelf.
Never use corrosive samples
Most parts are made of stainless steel (SUS304). However, strong acid occasionally
corrodes even stainless steel. Besides this, the silicone rubber packing is also
vulnerable to acid, alkali, oil and halogens' solvents
Ventilate a room when using an inert gas
Application in a well-ventilated area is recommended.