Inverter Hot Line Coil Resistance Meter SOKEN DAC-HIR-3 SOKEN Inverter Hot Line Coil Resistance Meter DAC-HRI-3 can measure resistances of the coil winding of a motor driven inverter power supply (PWM) during applying voltage. Generally, either the temperature measuring method which measures a partial temperature by using temperature sensor, or the resistance method which measures resistance and converts it by using temperature coefficient, is introduced [...]