Description Short-Circuit Loop Impedance Meter MZC-20E Measurements of impedance in a short-circuit loop Z within the ranges of 0.24…200 Ω Short-circuit current IK: 1,15 – 958,3 A (Un =230 V) AC voltage measurement: 0 – 440 V Display range Resolution Accuracy 0,00…19,99 Ω 0,01 Ω ±(2,5% m.v 5 digits) 20,0…199,9 Ω 0,1 Ω ±(2,5% m.v 3 digits) 100…200 Ω 1 Ω ±(3% m.v 3 digits) Rated operating voltage UnL-N / UnL-L : 220/380V, 230/400V, 240/415V Operating voltage range: 180…270V (for ZL-PE i ZL-N ) and 180…440V (for ZL-L ) Rated network frequency fn : 50Hz, 60Hz Frequency operating range: 45…65Hz Maximum measurement current: 15,3 A for 230 V (10ms) and 26,7 A for 400 V (10ms) Short-circuit resistance RS and reactance XS display range: Display range Resolution Accuracy 0,00…9,99 Ω 0,01 Ω ±(5% m.v. 5 digits) of ZS value Calculated and displayed fori ZS <10 Ω. Short-circuit current IK display Measuring range according to IEC 61557 can be calculated based on ZS measuring range and rated voltage values. Display range Resolution Accuracy 1,15…9,99 A 0,01 A Calculated based on the accuracy for the short-circuit loop accuracy 10,0…99,9 A 0,1 A Calculated based on the accuracy for the short-circuit loop accuracy 100…999 A 1 A Calculated based on the accuracy for the short-circuit loop accuracy 1,00…9,99 kA 0,01 kA Calculated based on the accuracy for the short-circuit loop accuracy 10,0…40,0 kA 0,1 kA Calculated based on the accuracy for the short-circuit loop accuracy Short-circuit loop impedance ZS measurement Measuring cable ZS measuring range 1,2m 0,24…200 Ω 5m 0,26…200 Ω 10m 0,28…200 Ω 20m 0,35…200 Ω Voltage measurement Display range Resolution Accuracy 0…440 V 1 V ±(2,5% m.v 3 digits) Short-Circuit Loop Impedance Meter MZC-20E
