... to a DC current/voltage output according to the linear scale.3.Excellent temperature characteristic and good working stability.4. ... (AC) A1: 0~50A,A2: 0~100A,A3: 0~150A,A4:0~200A,A5: 0~250A, A6: 0~300A, A7:0 ~500A,A8: 0~1000APower SupplyP1:DC24V ... ² Technical IndexStandard:GB/T 13850-1998,IEC688:1992Accuracy:0.5%Accuracy drift:Annual Variation < 0.2%Working frequency withstand voltage:AC2.0kV/min ...