1. The industrial oven should be placed in a dry place indoors to prevent vibration and corrosion. 2. Pay attention to the safe use of electricity, and install an electric knife with sufficient capacity according to the power consumption of the oven. Choose enough power conductors and have good grounding wires. 3. For the oven with mercury thermometer with electric contact, connect the two wires of the electric contact thermometer to the two terminals at the top of the box respectively. In addition, insert an ordinary mercury thermometer into the exhaust valve (the thermometer in the exhaust valve is used to check the mercury thermometer of the electric contact and observe the actual temperature in the box) and open the hole of the exhaust valve. After adjusting the mercury thermometer of the electric contact to the required temperature, tighten the screw on the steel cap to achieve the purpose of constant temperature. However, in the process of adjustment, care must be taken not to turn the indicator iron out of the scale. 4. After everything is ready, put the sample in the oven, then connect and turn on the power supply. The red indicator light indicates that the box has been heated. When the temperature reaches the control temperature, the red light turns off, the green light turns on, and the constant temperature starts. In order to prevent the temperature control from failing, someone must look after it. 5. When placing the test samples, be careful not to arrange them too close. Do not put the sample on the radiator, so as not to affect the upward flow of hot air. It is forbidden to bake inflammable, explosive, volatile and corrosive articles. 6. When you need to observe the sample in the studio, you can open the door of the outer channel box and observe through the glass door. But it is best to open the door as little as possible, so as not to affect the constant temperature. Especially when working above 200℃, opening the door may cause the glass door to burst due to sudden cooling. 7. For the oven with blower, the blower must be turned on when heating at constant temperature, otherwise it will affect the temperature uniformity of the working room and damage the heating elements. 8. After the work, cut off the power supply in time to ensure safety. 9. Keep the industrial oven clean inside and outside. 10. When in use, the temperature should not exceed the maximum temperature of the oven. 1 1. To prevent burns, use special tools when sampling and placing samples. References:

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