... ,DC,Voltage,power synchronous volume,frequency,expended voltage and overload current etc.The product performance is accordance ... pounding frequeney of 80 to 120times per minute,and two hours tansport jolt;Operating positon:vertical directionFrequency:50Hz ... -35KVSwitch on second current through current transformerDc ammeterμA,Ma50μA -500μA 1mA-500mADirectly switch onA1A-5A15A-750A75m V Buidout ...