Standard Function Electronic over current protect function: Protects thyristor element by shutting off the over current detected by a load current monitoring CT. Constant voltage characteristics by means of voltage Stable output provided by the voltage control function and easy operation achieved feedback: by the linear characteristics of control input and output voltage. Soft start function: Setting suitable soft start for the load. Additional Function (option) Automatic power adjusting function: The suitable power for the control temperature is continuously controlled by a signal from the programmable controller, computer and adjuster. Applicable for soft control of the low range. Constant-current control (Current feedback): Applicable to controlling the pure metallic heater and the Kanthal Super heater. Constant-power control (Power feedback): Applicable to controlling the SiC and the carbon heater,and applicable to high stability controlling. Power linear control (Voltage square feedback): Applicable to precise controlling for Nichrome heater load with power linear characteristics of the control input / output voltage. Current limiting function: Applicable to loads with rush current on starting and continuous usage over current condition such as pure metallic, Tungsten and Molybdenum heaters. Start up output limiting function: Applicable to the rush current reduction and load protection on turning on the power supply. Heater break alarm: Alarm display and output in case of detecting the low power condition of the broken heater and heater defect. Rapid fuse: Perfect protection for the thyristor device and the power line from the over current of the short circuit and the grounding. Power adjustment function: Addition of various manual equipment used for adjusting ramp, base (residual output), manual and high / low. Monitor and Alarm Output on the Trouble Situation Over-current protection: [O.C] monitor lights and alarm output on Fan stop (for models over 150A): [FAN] monitor lights and alarm output on Rapid fuse burnt out: [FUSE] monitor lights and alarm output on Heater break alarm: [H / B] monitor lights and warning output on