... requirement: AC50Hz, 220V, stability of frequency: fluctuation less than 0.5%2. When using it, the capacitance of the sample should ... ,≤1.1µF5AController:4kgBooster: 25kg0.05Hz,≤2.2µF0.02Hz,≤5.5µFSVLF-5050kV/30mA(Peak)0.1Hz,≤1.1µF15AController:4kgBooster ... : 50kg0.05Hz,≤2.2µF0.02Hz,≤5.5µFSVLF-8080kV/30mA(Peak)0.1Hz,≤0.5µF20AController:4kgBooster Grade 1(30kV):25kgBooster Grade ...