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上海楹點檢測設備有限公司
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MZC-306回路阻抗測量儀
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指數:
WMGBMZC306
Loop Impedance Meter
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 (4xLR14)
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...249,9 V 0,1 V ±(2% m.v. + 4 Digits)
250...750 V 1 V ±(2% m.v. + 2 Digits)
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, LR14 (4 pcs)
number of Z measurements (for alkaline batteries): > 5000
time to Auto-OFF: 300 seconds
data transmission: USB
memory of measurement results: 990 cells, 3500 entries
display: LCD segment
dimensions: 288 x 223 x 75 mm
meter weight: ca. 2 kg
?m.v.” measured value