Whether in industrial production or in scientific research experiments, electric heaters are a kind of heating and heat preservation equipment that is frequently used. In the process of processing, it is often necessary to strictly control the rise and fall of temperature. With the promotion of computer technology, the temperature control technology of electric heating has also made great progress.
The control system of the electric heater can be divided into two categories, one is the hybrid control method, which requires the electric heater to be connected with the control system before it can be controlled. Relatively speaking, the system composition of this control method is relatively complex, and the required input cost is relatively high.
On the other hand, due to the many transformation links of the output channel in the electric heater, especially after the transformation of analog quantities, the nonlinearity is relatively serious, resulting in poor anti-interference performance and low control accuracy. In addition, the reliability of this control method is also relatively poor, and it is prone to failure.
The other is pure computer control. The control method of the electric heater is completely different. The D/A conversion, the expansion of the voltage signal, the conversion of the power frequency high-voltage pulse signal and other links are removed from its output, and the direct use The TTL level pulse signal controls the on-off of the solid-state relay, and the solid-state relay controls the on-off of the electric heater, which greatly simplifies the control process of the electric heater.
Not only that, it also overcomes the defects of the first control method and gives full play to the advantages of computer technology, so that the electric heater can not only greatly reduce the cost, but also greatly improve the control accuracy. In addition, its anti-interference function and reliability are also more guaranteed, which is the basis for the safe, efficient and stable operation of the electric heater.
Jiangsu Weineng Electric Co.,Ltd is profession manufacturer of various types of industrial electric heater, everything is customized in our factory, Should you have any questions please feel free to come back to us.
Contact: Lorena
Email: inter-market@wnheater.com
Mobile: 0086 153 6641 6606 (Wechat/Whatsapp ID)
Post time: Jun-06-2022