Thiết bi đo trở kháng vòng lặp Sonel MZC-305
Hãng sản xuất: Sonel
Xuất xứ: Balan-EU
Model: MZC-305
Mô tả: Thiết bi đo trở kháng vòng lặp Sonel MZC-305
Loop impedance measurement with resolution 0,01 Ω
Loop impedance measurement without tripping the circuit breaker > 30 mA with resolution 0,01 Ω (100...440 V)
Measurements possible in installations 110/190 V, 115/200 V, 127/220 V, 220/380 V, 230/400 V, 240/415 V, 290/500 V and 400/690 V (range 100...750 V)
Short circuit current indication
Voltage measurement up to 750 V and up to 250 V with resolution 0,1 V
Measurements using Uni-Schuko adapter or test wires 1,2; 5; 10 and 20 m
Memory of 990 records
USB connection with PC
Powered by disposable or rechargeable (4xAA)
Thông số kỹ thuật: Thiết bi đo trở kháng vòng lặp Sonel MZC-305
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
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
