The new high-temperature drying oven in the laboratory has been smoking since it was started up, what is the reason?

The new drying oven in the laboratory, when the temperature rises to 150 ℃, the oven smokes and has a burnt smell. Is this dangerous?

If it is ruled out that there is a circuit problem in the oven, the problem is not big. The reason is that the insulation layer of the newly produced high-temperature oven contains some impurities, and there is a wax tube on the power line. When heating for the first time, the impurities in the insulation layer and the paraffin on the wax pipe will volatilize due to heating, which will smell burnt or even smoke It's good to have these ingredients evaporated a few times.

Therefore, before formal use, it is suggested that samples should not be put in first. Close the door, loosen the exhaust cover on the top of the oven, turn on the power switch, and set the temperature controller at 100 ℃. At this time, the temperature inside the chamber starts to rise. When the temperature rises to 100 ℃, the temperature controller will automatically keep constant temperature. After that, the power supply can be cut off and the door can be opened to dissipate heat and smoke.
drying oven：http://en.kentonchina.com/list/drying-oven.html



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