Description High Current Loop Impedance Tester | MZC-320 Voltage measurements (True RMS) Range Resolution Accuracy 0…550 V 1 V ±(2% m.v. 2 digits) frequency range: DC, 45…65 Hz input impedance of the voltmeter: >200 kΩ Frequency measurements (for voltages in range 95…550 V) Range Resolution Accuracy 45,0…65,0 Hz 0,1 Hz ±(0,1% m.v. 1 digit) Short circuit loop parameters measurement using high current (4p, Imax=300 A) High-current of measurement of short circuit loop impedance ZS: measuring range according to IEC61557: 7,2 mΩ…1999 mΩ Range Resolution Accuracy 0…199,9 mΩ 0,1 mΩ ±(2% m.v. 2 mΩ) 200…1999 mΩ 1 mΩ ±(2% m.v. 2 mΩ) Short circuit resistance R and reactance XS display range Range Resolution Accuracy 0…199,9 mΩ 0,1 mΩ ±(2% m.v. 2 mΩ) impedance reading for a particular measurement 200…1999 mΩ 1 mΩ ±(2% m.v. 2 mΩ) impedance reading for a particular measurement Short circuit current indication measuring range according to IEC 61557: for Un = 230 V 115,0 A…32,0 kA for Un = 400 V 200 A…55,7 kA for Un = 500 V 250 A…69,4 kA Range Resolution Accuracy 115,0…199,9 A 0,1 A Accuracy of the current indication computed, respectively, with the use of resistance measurements 200…1999 A 1 A Accuracy of the current indication computed, respectively, with the use of resistance measurements 2,00…19,99 kA 0,01 kA Accuracy of the current indication computed, respectively, with the use of resistance measurements 20,0…199,9 kA 0,1 kA Accuracy of the current indication computed, respectively, with the use of resistance measurements 200 kA…* 1 kA Accuracy of the current indication computed, respectively, with the use of resistance measurements * 230 kA for UL-N 400 kA for UL-L Short circuit loop parameters measurement using standards current (2p, Imax=30 A) Touch voltage measurements UST and shock voltage UT Range Resolution Accuracy 0…100 V 1 V ±(10% m.v. 2 digits) Short circuit loop impedance ZS measurement: measuring range according to IEC61557: 0,13 Ω…199,9 Ω for test leads length 1,2 m Range Resolution Accuracy 0,00…19,99 Ω 0,01 Ω ±(2% m.v. 3 digits) 20,0…199,9 Ω 0,1 Ω ±(3% m.v. 3 digits) Short circuit resistance RS and reactance XS display range Range Resolution Accuracy 0,00…19,99 Ω 0,01 Ω ±(2% m.v. 3 digits) impedance reading for a particular measurement 20,0…199,9 Ω 0,1 Ω ±(3% m.v. 3 digits) impedance reading for a particular measurement Readings short circuit current Range Resolution Accuracy 1,150…1,999 A 0,001 A Accuracy of the current indication computed, respectively, with the use of resistance measurements 2,00…19,99 A 0,01 A Accuracy of the current indication computed, respectively, with the use of resistance measurements 20,0…199,9 A 0,1 A Accuracy of the current indication computed, respectively, with the use of resistance measurements 200…1999 A 1 A Accuracy of the current indication computed, respectively, with the use of resistance measurements 2,00…19,99 kA 0,01 kA Accuracy of the current indication computed, respectively, with the use of resistance measurements 20,0…40,0 kA 0,1 kA Accuracy of the current indication computed, respectively, with the use of resistance measurements „m.v.” – measured value Electric security: type of insulation: double, according to PN-EN 61010-1 and IEC 61557 measurement category: IV 600 V acc. to PN-EN 61010-1 protection class acc. PN-EN 60529: IP20 (IP67 with front cover closed) Other technical data: power supply: build in Li-Ion 7,2 V/8,8 Ah resistor limited the current: for 4 pole method 4p: 1,8 Ω for two pole method 2p: 9,4 Ω for U≤253 V, 19 Ω for U>253 V number of short circuit loop measurements: 2000 (4/min.) temperature coefficient: ±0,1% measured value /°C dimensions: 390 mm x 310 mm x 170 mm weight: 6,6 kg Rated operational conditions: operating temperature 0… 40 °C High Current Loop Impedance Tester | MZC-320
