The Automatic Thermal—Regulating System in Hot Water Circulation The Automatic Thermal——Regulating System in Hot Water Circulation

A great amount of heating elements being put into use nowadays in industrial production is inevitable to cause tension in power consumption. Aiming at both meeting the needs of production processes and economization of electic power, the article puts forward 4 methods as to how to regulate automatically the temperature of objects heated with heating elements. Of the four, the one, which uses XCT-19 mobile——coil indicating regulator to form an automnatic thermal——regulating system without contacts and transmitting analog signals, is the advanced means control, In addtion to output signals being analog quantitative current, the regulator boasts such functions as regulation of PID (proportion, integral, differential). In this way, no error will occur in thernol-regulatinn of the objects heated by electric heating elements.