... Operation Panel such as setting Auto/Manual, Up and Down, testing of IHS and Arc Start….etcF. Arc Voltage DivideIsolation Voltage Divide ... , the Voltage Divide ratio is 100:1/50:1. History of HYD Torch height controller1996 made first capacitive torch height controller ... (Ontime);2004 set up HYD.CNC Tech Co, stopped developing of immature Ontime THC, and returned to Analog Circuit design, developed ...