Loop Impedance Meter AMZC-305

Loop Impedance Meter AMZC-305

The most important features of AMZC-305 are:

  • Loop impedance measurement with resolution 0,01Ω
  • Loop impedance measurement without tripping the circuit breaker > 30mA with resolution 0,01Ω (100...440V)
  • Measurements possible in installations 110/190V, 115/200V, 127/220V, 220/380V, 230/400V, 240/415V, 290/500V and 400/690V (range 100...750V)
  • Short circuit current indication
  • Voltage measurement up to 750V and up to 250V with resolution 0,1V
  • Measurements using Uni-Schuko adapter or test wires 1,2; 5; 10 and 20m
  • Memory of 990 records
  • USB connection with PC
  • Powered by disposable or rechargeable (4xAA)

Measurement of short circuit loop impedance ZL-PE ,ZL-N ,Z L-L

Measuring range according to IEC61557: 0,13…1999Ω for 1,2m test leads; 0,25…1999Ω for UNI-SCHUKO adapter

Range

Resolution

Accuracy

0,00...19,99Ω

0,01Ω

±(5% m.v. + 3 digits)

20,0...199,9Ω

0,1Ω

±(4% m.v. + 3 digits)

200...1999Ω

Rated operating voltage UnL-N / UnL-L: 110/190V, 115/200V, 127/220V, 220/380V, 230/400V, 240/415V, 290/500V, 400/690V

Voltage range 100…440V (for ZL-PE, ZL-N ) and 100…750V (for ZL-L )

High current measurement (up to 30A)

Operating frequency range: 45…65Hz

Control of correctness of PE terminal connection by means of a contact electrode (ZL-PE)

Measurement is also possible when L and N circuits are swapped

Measurement of resistance and reactance components

Short circuit current calculation

Measuring of short circuit loop impedance ZL-PE RCD (without RCD tripping)

Measuring range according to IEC61557: 0,43...1999Ω for 1,2m test leads; 0,50...1999 Ω for UNI-SCHUKO adapter

Range

Resolution

Accuracy

0,00...19,99Ω

0,01Ω

±(6% m.v. + 10 digits)

20,0...199,9Ω

0,1Ω

±(6% m.v. + 5 digits)

200...1999Ω

Operating voltage range: 100 ... 440V

Rated operating voltage Un: 110V, 115V, 127V, 220V, 230V, 240V, 390V, 400V

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...249,9V

0,1V

±(2% m.v.. + 4 digits)

250...750V

1V

±(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…65Hz,

Overvoltage alarm.

“m.v.” - measured value.

AMZC-305 Specifications

Electrical safety:

Type of insulation

Double, according IEC 61010-1

Measurement category

CAT IV 600V (CAT III 1000V)

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

260x190x60mm

Meter weight

2,2 kg

Rated operational conditions:

Operating temperature

0...+45°C

Storage temperature

-20...60°C

Humidity

20-80%

Standard accesories:

  • Test lead with banana plug; 1,2m; red
  • Test lead with banana plug; 1,2m; yellow
  • Test lead with banana plug; 1,2m; blue
  • Pin probe with banana connector; red
  • Pin probe with banana connector; yellow
  • Pin probe with banana connector; blue
  • "Crocodile" clip K02; red
  • "Crocodile" clip K02; blue
  • Carrying case L4
  • USB cable
  • Hanging straps
  • R6 batteries
  • Operation manual
  • Calibration certificate

Optional accesories:

  • Adapter UNI-SCHUKO (WS-05)
  • Probe with START button with UNI-SCHUKO (WS-01)
  • Software for creation of documentation from electrical measurements
  • Triple phase socket adapter AGT-16P
  • Triple phase socket adapter AGT-32P
  • Triple phase socket adapter AGT-63P
  • Triple phase socket adapter AGT-16C
  • Triple phase socket adapter AGT-32C
  • Test lead with banana plug, 5m, red
  • Test lead with banana plug, 10m, red
  • Test lead with banana plug, 20m, red
Loop Impedance Meter AMZC-305

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