KYORITSU KEW 4200 Earth Clamp Tester (Made In THAILAND)

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KYORITSU KEW 4200 Earth Clamp Tester (Made In THAILAND) The KYORITSU KEW 4200 Earth Clamp Tester (Made In THAILAND) is a clamp‑on earth ground meter engineered for rapid, non‑intrusive measurement of grounding systems in environments with multiple earth points. Its rugged jaws open to accept conductors up to 32 mm in diameter, enabling resistance tests from 0.01 Ω to 1 500 Ω without the need for auxiliary ground spikes. A built‑in AC current function delivers True RMS readings from 0.0 mA to 30.0 A, ensuring accuracy even on distorted waveforms. The meter’s “Noise Check” feature detects stray currents that could skew resistance measurements, displaying a clear “NOISE” indicator when interference is present. User‑convenience functions include data hold, audible buzzer alerts below preset resistance thresholds, backlight for low‑light work, and a memory function capable of storing up to 100 readings. Powered by four AA cells, it boasts up to 24 hours of operation and auto‑powers‑off after 10 minutes of inactivity. Certified to IEC 61010‑1 CAT IV 300 V and IP40, the KEW 4200 balancing performance, safety, and portability makes it ideal for maintenance and troubleshooting of grounding in industrial, commercial, and utility distribution networks. Features: Clamp‑On Ground Resistance : Measures 0.01 Ω–1 500 Ω in multi‑earth systems without spikes. True RMS AC Current : Auto‑range 0.0 mA–30.0 A for accurate distorted waveform readings. Noise Check : Detects stray currents and flags “NOISE” when present. Data Hold & Memory : Freeze readings on‑screen; store up to 100 values. Buzzer & Backlight : Audible alert below 10 Ω; backlight for dark environments. Auto Power‑Off : Conserves battery, shuts down after 10 min idle. Safety Rated : IEC 61010‑1 CAT IV 300 V, Pollution Degree 2; IP40 protection. Specifications: Function Range Resolution Accuracy Earth Resistance: 0.00–20.99 Ω / 16.0–99.9 Ω / 100.0–209.9 Ω / 160–399 Ω / 400–599 Ω / 600–1 260 Ω 0.01 Ω / 0.1 Ω / 1 Ω ±1.5 %±0.05 Ω / ±2 %±0.5 Ω / ±3 %±2 Ω / ±5 %±5 Ω / ±10 %±10 Ω AC Current: 0.0–104.9 mA / 80–1 049 mA / 0.80–10.49 A / 8.0–31.5 A 0.1 mA / 1 mA / 0.01 A / 0.1 A ±2 %±0.7 mA / ±2 % / – / – General: Conductor up to 32 mm; 246×120×54 mm; 780 g – IEC 61010‑1 CAT IV 300 V; IP40 Applications: Normal Current Measurement. Leakage Current Balance Measurement. Earth Resistance Measurement. Package Contents: 4x Battery (R6P manganese ×4 or LR6 alkaline ×4) 1x Instruction Manual 1x Resistor for Operation Check (MODEL 8304) 1x Hard Case (MODEL 9128) Documents: Instruction Manual Datasheet