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Megger NIM1000 Loop Impedance Meter
Includes: 4 x Kelvin clamps with 3m test leads, Adapter NIM 1000-A for tests on Schuko outlets, USB-Stick 2 GB for transfer of data to PC, Set of spare fuses and clamps.
The impedance meter triggers load-sensitive and neutral faults, detects weak contacts, and exposes hidden flaws. Depending on the grounding conditions of the tested grid, a multi-phase measurement calculates the impedance of the neutral conductor to detect defects that can cause severe safety issues.
The Megger NIM1000 is a versatile device: it measures the current capacity under real-life conditions, determines the voltage dip resulting from a given load, and performs tests on cables, power supply lines, and bus-bars. Those tests help determine the correct dimensioning of the installations, ensure a consistently good power quality, and prevent downtimes.
With its simple operation, handy size, and bright color display, NIM1000 is a user-friendly device, developed specifically for the needs of LV utilities and their testing technicians who work in today’s demanding and competitive market conditions.
FEATURES
Triggers load-sensitive and neutral faults.
Performs multi-phase measurements.
Tests in accordance with DIN EN 61557-3; VDE 0413-3.
Simple to operate with numerical and graphical results.
Stored records can either be recalled to the display or transferred to a PC.
Test Current Range | 80 to 1000 A (adjustable). |
Maximum Current (peak) imax (depends on the grid impedance) | ≤ 1000 A @ 400 V ≤ 600 A @ 230 V ≤ 300 A @ 115 V. |
Test Parameters | Z = Impedance (value and phase) R = Resistance (real part) X = Reactance (imaginary part) ZPEN = Impedance value PEN (calculated) Z, R, X und ZPEN are displayed for the power frequency up to the 10th harmonic (phase-N, phase-phase) Urms = RMS voltage Imax = max. test current Is = Short circuit current Skv = Continuous short circuit power f = Net frequency VD = Voltage drop at nominal connected power (in %) Pmax = max. connected power at nominal voltage drop. |
Input Voltage (Serves as Supply Voltage) | 90 V ... 480 V, 50/60 Hz (at test clamps) 90 V … 230 V, 50/60 Hz (at power outlet). |
Operational Accuracy B (acc to EN 61557-3) | 3% ± 1 digit (at sufficient test current). |
Test Range (at the above accuracy) | 10 mΩ ... 5 Ω (230 V / 400 V) 10 mΩ ... 2,5 Ω (115 V). |
Resolution | 1 mΩ. |
Test Category | 300 V CAT IV. |
Safety Functions | Temperature monitoring, fused clamps. |
Display | Sunlight-readable 5.7" TFT, 640 x 480 pixels. |
Memory | Minimum 1000 test records. |
Interface | USB 2.0. |
Dimensions | 410 x 175 x 335 mm. |
Environmental | Operating Temperature: -20 to 55°C Storage Temperature: -30 to 70°C Humidity: max relative humidity 93% at 30°C. |
Protection | Protection class (IEC 61140, DIN VDE 0140-1): insulated acc to protection class II IP protection (IEC 60529, DIN VDE 0470-1): IP50 (lid open), IP53 (lid closed). |
Megger NIM1000 warranty | One-year. |
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