Precautions when using hot air circulation oven

Precautions for use of hot air circulation oven: 1 The hot air circulation oven shall be placed at a clean indoor level, kept dry, protected from moisture and moisture, and prevented from corrosion Working temperature of hot air circulation oven: room temperature + 10-300 ℃, any temperature can be set, temperature uniformity: plus or minus 1.5% 2 The place where the hot air circulation oven is placed should have a certain space, and the four sides should have a certain distance from the wall It is recommended to have more than 2 meters Air duct of hot air circulation oven: double air duct, horizontal or vertical circulation Shell material: Q235 carbon steel cold rolled sheet metal bending welding rivet splicing Material of inner tank and air duct system of hot air circulation oven: punching of drawing stainless steel sheet metal bending machine 3 Check the voltage before using the hot air circulation oven The voltage required for the smaller hot air circulation oven is 220V, and the voltage required for the larger hot air circulation oven is 380V (three-phase four wire) Install the power switch with sufficient capacity according to the power consumption of the hot air circulation oven And select the appropriate power wire Ground wire work shall also be done well Safety protection of hot air circulation oven: leakage protection, open circuit protection, Motor overload protection, grounding protection 4 After the above work is ready, the test object can be put into the hot air circulation oven, then connect the power supply, turn on the hot air circulation oven switch, and the hot air circulation oven with the blower device must be turned on in the process of heating and constant temperature, otherwise the uniformity of the temperature in the working room may damage the heating element After that, the temperature of the drying test is adjusted, and the hot air circulation oven enters the working state 5 The baking items shall not be arranged too closely, and the items on the bottom (heat sink) of the hot air circulation oven shall not be placed to avoid affecting the hot air circulation It is prohibited to bake inflammable, explosive and volatile and corrosive items Hot air circulation oven heater: far infrared dust-free stainless steel tubular electric heater with continuous service life of more than 50000-60000 hours 6 After baking, cut off the power first, and then open the door of the workshop Remember not to touch the baking articles directly with your hands Use special tools or gloves with heat insulation to take the baking articles to avoid scalding 7 Keep the air circulation oven clean in the working room 8 When using the hot air circulation oven, the temperature shall not exceed the Zui high service temperature of the hot air circulation oven Generally, the hot air circulation oven is below 250 ℃ Constant temperature timing of hot air circulation oven: 0.01-99.99 hours, time to cut off heating, beep prompt