| 加工定制：是 | 类型：数字式电阻测量仪表 | 品牌：华清 |
| 型号：MZC-305 | 测量范围：详见资料MΩ | 电 源：MZC-305 |
| 测试电压：详见资料V | 精度：MZC-305 | 重复误差：详见资料MZC-305 |
| 环境温度：MZC-305 | 相对湿度：详见资料 | 校准周期：MZC-305 |
| 重量：3kgkg | 尺 寸：MZC-305 | 规格：详见资料 |
MZC-305；MZC-305说明书 华清
MZC-305；MZC-305说明书 华清
MZC-305；MZC-305说明书 华清
MZC-305；MZC-305说明书 华清Measurement of short circuit loop impedance (ZL-PE, ZL-N, ZL-L)
Measuring range according to IEC61557: 0,13...1999 Ω for 1,2 m test leads; 0,25...1999 Ω for UNI-SCHUKO adapter
| Range | Resolution | Accuracy |
| 0,00...19,99 Ω | 0,01 Ω | ±(5% m.v. + 3 digits) |
| 20,0...199,9 Ω | 0,1 Ω | ±(4% m.v.. + 3 digits) |
| 200...1999 Ω | 1 Ω |
rated operating voltage UnL-N/ UnL-L: 110/190 V, 115/200 V, 127/220 V, 220/380 V, 230/400 V, 240/415 V, 290/500 V, 400/690 V,
operating voltage range: 100…440 V (for ZL-PE and ZL-N) and 100…750 V (for ZL-L)
high current measurement (up to 30 A),
operating frequency range: 45…65 Hz,
control of correctness of PE terminal connection by means of a contact electrode (applicable to ZL-PE),
measurement is also possible when L and N circuits are swapped,
measurement of resistance and reactance components,
short circuit current calculation.
Measurement of short circuit loop impedance ZL-PE RCD (without RCD tripping)
Measuring range according to IEC61557: 0,43...1999 Ω for 1,2 m test leads; 0,50...1999 Ω for UNI-SCHUKO adapter
| 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 |
operating voltage range: 100 ... 440 V,
rated operating voltage Un: 110 V, 115 V, 127 V, 220 V, 230 V, 240 V, 390 V, 400 V,
control of correctness of PE terminal connection by means of a contact electrode,
measurement is also possible when L and N circuits are swapped,
measurement of resistance and reactance components,
short circuit current calculation.
Voltage measurement
| Range | Resolution | Accuracy |
| 0,0 V...249,9 V | 0,1 V | ±(2% m.v. + 4 digits) |
| 250 V...750 V | 1 V | ±(2% m.v. + 2 digits) |
measurement available for all settings of short-circuit loop (ZL-PE, ZL-PE RCD and ZL-N,L-L),
frequency range 45…65 Hz,
overvoltage alarm.
Electrical safety:
type of insulation: double, according to IEC 61010 - 1
measurement category: CAT IV 600 V (CAT III 1000 V)
protection class acc. to EN 60529: IP54
Other technical data
power supply: alkaline batteries or NiMH rechargeable batteries, size AA (4 pcs)
number of Z measurements (for alkaline batteries): >3000 (2 measurements per minute)
time to Auto-OFF: 120 seconds
data transmission: USB
memory of measurement results: 990 cells, 3500 entries
display: LCD segment
dimensions: 260 x 190x60 mm
meter weight: ca. 2,2 kg
Rated operational conditions:
operating temperature: 0...+45°C
storage temperature: -20...60°C
humidity 20 - 80%
The instrument meets the requirements of EMC standards
MZC-305；MZC-305说明书 华清
MZC-305；MZC-305说明书 华清
MZC-305；MZC-305说明书 华清
MZC-305；MZC-305说明书 华清
MZC-305；MZC-305说明书 华清
MZC-305；MZC-305说明书 华清
