... Operational DC Bias sourc IntroductionTH2819XA is an automatic transformer multi-parameter measurement instrument used for quality control ... parameters of inductance L, leakage inductance Lk, turns-ratio Tr, DC resistance DCR, impedance Z, and capacitance ... , balance, pin shortBasic accuracyLCRZ, DCR: 0.1%Turns ratio: 0.5%Equivalent Serial, ParallelMath functionAbsolute value deviation, percentage ...