The traditional low-voltage Electrical Resistance Local heat-treating method uses Flexible Ceramic Heaters connected to a control unit by use of Secondary Cables. A thermocouple is used to monitor the material temperature and provide feedback to the control unit and temperature recording system. The control unit can come in 3 different forms:
1)Twin Heat Module that is powered by a welding machine
2)Heat Treatment Console that can be powered by a 3 phase supply
3)Heat Treatment Rig, a fully self-contained unit with a Generator