Factors to consider when purchasing a hot air circulation oven

The working principle of the air electric heater is mainly to heat the required medium (air) from the initial temperature to the required medium (air) temperature, up to 800℃. So far, it has been widely used in the production of machinery, chemical industry, textile, rubber, electronics, aviation, petroleum and other industries, and is particularly suitable for automatic temperature control and large flow and high temperature joint control. The air electric heater can heat any gas, and the hot air generated is dry and moisture-free, non-conductive, non-flammable, non-explosive, non-chemically corrosive, non-polluting, safe and reliable, and the heated space heats up quickly. Here it involves heating temperature control: (1) Heater overtemperature control A representative high-precision overheating protection temperature measuring point is set inside the electric heater. The temperature measuring point measures the surface temperature of the heating element. The temperature measuring element is a PT100 type thermal resistor. The measured temperature signal is calculated by the temperature control instrument for overtemperature control. Once the heating element overheats, the electrical control part immediately stops the power output of the electric heater and stops heating, which can effectively extend the service life of the electric heater. (2) Heating medium temperature control

A high-precision temperature sensor is installed inside the heater to detect the internal temperature. The temperature measuring element is a PT100 explosion-proof thermal resistor. The measured temperature signal is transmitted to the temperature control instrument in the electrical control cabinet. The temperature control instrument calculates and controls the output power of the electric heater to make the heater outlet temperature meet the user's temperature requirements.