Thiết bi đo trở kháng vòng lặp Sonel MZC-304
Hãng sản xuất: Sonel
Xuất xứ: Balan-EU
Model: MZC-304
Mô tả: Thiết bi đo trở kháng vòng lặp Sonel MZC-304
Measurements of impedance in a short circuit loop.
+ L-PE circuit,
+ L-N, L-L circuit,
+ L-PE(RCD) circuit - without tripping the circuit breaker > 30 mA.
Low voltage resistance measurement:
+ Continuity measurement - DC current +200 mA with wire resistivity reset
+ Low current resistance measurement with accoustic signalling,
The measurements are posible in instalations 220/380 V, 230/400 V, 240/415 V with frequeency range 45...65 Hz.
Memory of 10 banks of 99 cells each (min.10000 records).
Radio wireless interface comunication
Thông số kỹ thuật: Thiết bi đo trở kháng vòng lặp Sonel 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 | |
| 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) wartości 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"
