| 加工定制：是 | 类型：接地电阻测量仪表 | 品牌：华清 |
| 型号：MZC-304 | 测量范围：详见资料MΩ | 电 源：MZC-304 |
| 测试电压：详见资料V | 精度：MZC-304 | 重复误差：详见资料 |
| 环境温度：MZC-304 | 相对湿度：详见资料 | 校准周期：MZC-304 |
| 重量：3kgkg | 尺 寸：MZC-304 | 规格：详见资料 |
MZC-304；MZC-304说明书
MZC-304；MZC-304说明书
MZC-304；MZC-304说明书
MZC-304；MZC-304说明书
MZC-304；MZC-304说明书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 | |
| 200...1999 Ω | 1 Ω |
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) warto?ci ZS |
| 20,0...199,9 Ω | 0,1 Ω |
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 |
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 |
*ocalculated 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 | |
| 200...400 Ω | 1 Ω |
open terminals voltage: 4…9 V DC,
output current at R<2 Ω: min 200 mA (ISC: 200...250 mA),
test leads resistance compension,
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 |
open terminals voltage4...9 V DC
output current ISC< 8 mA,
accustic 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)
protectin 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"
MZC-304；MZC-304说明书
MZC-304；MZC-304说明书
MZC-304；MZC-304说明书
MZC-304；MZC-304说明书
MZC-304；MZC-304说明书MZC-304；MZC-304说明书
