Description Loop Impedance Meter | MZC-304 Short circuit loop impedance ZL-PE,ZL-N,ZL-L , resistance and reactance measurement Short circuit loop impedance ZS Range Resolution Accuracy 0,00…19,99 Ω 0,01 Ω ±(5% m.v. 3 digits) 20,0…199,9 Ω 0,1 Ω ±(5% m.v. 3 digits) 200…1999 Ω 1 Ω ±(5% m.v. 3 digits) nominal work voltage UnL-N / UnL-L: 220/380 V, 230/400 V, 240/415 V voltage range 180…270 V (for ZL-PE i ZL-N) and 180…460 V (dla ZL-L) nominal network frequency fn: 50 Hz, 60 Hz frequency range: 45…65 Hz maximum measurement current 7,6 A for 230 V (3 x 10 ms), 13,3 A for 400 V (3 x 10 ms) PE terminal connection correctness check with the help of touch electrode (ZL-PE, ZL-PE(RCD)) short circuit current calculation for nominal voltage Short circuit loop resistance RS and reactance XS Range Resolution Accuracy 0,00…19,99 Ω 0,01 Ω ±(5% m.v. 5 digits) of ZS value 20,0…199,9 Ω 0,1 Ω ±(5% m.v. 5 digits) of ZS value calculated and displayed for ZS<200 Ω Short circuit loop impedance ZL-PE RCD measurement – without tripping the circuit breaker Short circuit loop impedance ZS measurement Range Resolution Accuracy 0,00…19,99 Ω 0,01 Ω ±(6% m.v. 10 digits) 20,0…199,9 Ω 0,1 Ω ±(6% m.v. 5 digits) 200…1999 Ω 1 Ω ±(6% m.v. 5 digits) No RCD reaction for I?n≥30 mA nominal work voltage Un: 220 V, 230 V, 240 V voltage range: 180…270 V nominal network frequency fn: 50 Hz, 60 Hz frequency range: 45…65 Hz PE terminal connection correctness check with the help of touch electrode short-circuit current calculation for nominal voltage Short circuit resistance RS and reactance XS display range (for ZL-PE RCD)* Range Resolution Accuracy 0,00…19,99 Ω 0,01 Ω ±(6% m.v. 10 digits) of ZS value 20,0…199,9 Ω 0,1 Ω ±(6% m.v. 5 digits) of ZS value *calculated and displayed for Zs<200 Ω Low voltage resistance measurement Measurement of continuity of equipotential bondings and protective conductors with ±200 mA current Range Resolution Accuracy 0,00…19,99 Ω 0,01 Ω ±(2% m.v. 3 digits) 20,0…199,9 Ω 0,1 Ω ±(2% m.v. 3 digits) 200…400 Ω 1 Ω ±(2% m.v. 3 digits) open terminals voltage: 4…9 V DC output current at R<2 Ω: min 200 mA (ISC: 200…250 mA) test leads resistance compensation measurement for both current polarization Low current resistance measurement Range Resolution Accuracy 0,0…199,9 Ω 0,1 Ω ±(3% m.v. 3 digits) 200…1999 Ω 1 Ω ±(3% m.v. 3 digits) open terminals voltage4…9 V DC output current ISC< 8 mA acoustic signal for measured resistance < 30 Ω ± 50% test leads resistance compensation AC voltage measurement Range Resolution Accuracy 0,0 V…299,99 V 0,1 V ±(2% m.v. 6 digits) 300 V…500 V 1 V ±(2% m.v. 2 digits) frequency range 45…65 Hz, test result refreshing: twice per second Frequency measurement Range Resolution Accuracy 45,0 V…65,0 Hz 0,1 Hz ±(0,1% m.v. 1 digit) voltage range: 50… 500 V Electrical safety: type of insulation: double, according EN 61010, 61557:2007 – 01 measurement category: III 600 V (CAT IV 300 V) protection class acc. to EN 60529: IP67 Other technical data: power supply: package of batteries (AA, 4 pcs.) batteries performance (short-circuit loop): min.5000 measurements Rated operational conditions: operating temperature: 0… 50°C humidity: 20 – 80% rated mains voltage: 220/380 V, 230/400 V, 240/415 V “m.v.” = measured value Loop Impedance Meter | MZC-304
