How to maintain the hot air circulation oven correctly

The working mode of hot air circulation oven is that the hot air circulates in the oven, and the water vapor brought out of the oven is discharged out of the oven Its working principle is very simple The heating pipe is used to heat the surrounding air, and the forced circulation fan makes the heated air circulates along the designed air duct in the oven The heat flow passes through the logistics, which transfers the temperature to the material in one direction, and the material passes through the The water vapor evaporated due to the transmission of excess heat is carried out to the exhaust port above the box and discharged out of the box through the hot air flow Daily maintenance of hot air circulation oven is also very important, so what is the correct way to maintain hot air circulation oven? Today, I have made a summary for you: 1 In the hot air circulation oven without explosion-proof device, please do not put inflammables 2 Pay attention to whether the power supply voltage is consistent before use When using, the grounding wire of the power socket must be grounded according to the regulations 3 After each use of the hot air circulation oven, the power must be cut off completely and the inside and outside of the oven shall be kept clean Hang corresponding signs after cleaning 4 Do not overcrowd the articles in the box, and leave a space for natural convection of air to accelerate the escape of humid air on the top of the wind 5 Regularly check whether the silver contact of the temperature regulator is hairy or uneven If there is any, the contact can be sanded with a spinning cloth and reused The contact should be cleaned with a clean cloth frequently to make it in good contact (attention must be paid to cut off the power supply) The metal pipe of the indoor temperature regulator shall not be impacted to avoid affecting the sensitivity 6 When the hot air circulation oven is powered on, do not touch the electrical part of the space on the left side of the oven by hand or wipe it with a wet cloth and wash it with water Cut off the power supply during maintenance 7 The power cord shall not be wound on the metal object, and shall not be set in the high temperature or damp place to prevent the rubber from aging and leakage