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MODEL 4200

  • The earth resistance from 0.05 to 1500Ω can be measured without the auxiliary earth spikes. (The Multiple Earthing System.)
  • True RMS
  • Accurate true RMS readings of AC current including distorted waveform from 1mA to 30.0A
  • Noise Check Function
  • A function to detect current, which effects on an earth resistance measurement and display “NOISE” mark on the LCD.
  • Memory function
  • Save and display up to 100 measurement data.
  • Data hold function / Buzzer function / Back light function
  • Compliant with Safety Standards of IEC 61010-1 : CAT IV 300V Pollution degree2 Note:
  • A single earthing can not be measured. (Only for Multiple Earthing System)


  • φ32
  • Backlight

Earth resistance Auto range20.00/200.0/1500Ω
±1.5%±0.05Ω(0.00 – 20.99Ω)*
±2%±0.5Ω(16.0 – 99.9Ω)
±3%±2Ω(100.0 – 209.9Ω)
±5%±5Ω(160 – 399Ω)
±10%±10Ω(400 – 599Ω)
AC current (50Hz/60Hz) Auto rangeValues are displayed, but accuracy isn’t guaranted(600 – 1580Ω)
±2%±0.7mA(0.0 – 104.9mA)
±2%(80mA – 31.5A)
Operating indicationEarth resistance function :
Constant voltage injection
Current detection (Frequency : Approx.2400Hz)
Dual Integration
AC current function : Successive approximation
Over-range indication“OL”is displayed when input exceeds the upper limit of a measuring range
Response timeApprox. 7 seconds (Earth resistance)
Approx. 2 seconds (AC current)
Sample rateApprox. 1 times per second
Current consumptionApprox. 50mA (max.100mA)
Measurement timeApprox.12 hours (when R6 is used)
Approx.24 hours (when LR6 is used)
Auto power-offTurns power off about 10 minutes after the last button operation.
Conductor sizeApprox. Ø32mm
Applicable standardsIEC 61010-1 CAT Ⅳ 300V Pollution degree2
IEC 61010-2-032, IEC 61326 (EMC)
Power sourceDC6V : R6(sizeAA manganese battery) x 4
or LR6 (sizeAA alkaline battery) x 4
WeightApprox. 780g (including batteries)
Included AccessoriesR6 x 4, Instruction manual
8304 (Resister for operation check)
9166 (Carrying case[Hard])

Accessories/ Optional Accessories /Related Products

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KEW 4300

KEW 4106



KEW 4105DL

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