... applied Test Sets Composed of:High Accuracy CT site Calibrating Test Sets are composed of ... Transformer Tester, Model ITC-C,-Standard reference CT, Model HL-62CS-Current load box ,model ... .0 resolution 0.0001 ² Angle measure (°): 0.001 ~ 700.0, resolution 0.001 ² Resistance measure: (ohm): 0 ... Harmonic control >40db -Polarity Check/ Indication Standard reference CT, Model HL-62CS -Rated load : 5VA,1VA ...