Insulation & Earth Resistance Tester

Grounding Grid Tester

type:ZC-413
ZC-413 Grounding Grid Tester is suitable for testing power frequency grounding impedance, contact voltage, step voltage, transfer potential, surface potential gradient and soil resistivity of various grounding devices. The instrument adopts the technology of anti-jamming with different frequencies, and can accurately measure the data under the power frequency in the strong interference environment.
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  • Product Parameters
Measuring range 0 ~ 200 Ω(including the current pile impedance)
Points and distinguishing rate 0.001Ω
Measurement error Plus or minus (0.005 Ω reading x + 1%)
Maximum output voltage AC 400V (45Hz, 55Hz, dual-frequency, sine wave)
Maximum output current AC 3A (45Hz, 55Hz, dual-frequency, sine wave)
Current output gear 3/2.5/2/1.5/1a, each 0.5a first gear, 5 files in total
Anti-interference ability Resistance to power frequency: 50Hz voltage: 10V
Power supply AC 220V±10%,50Hz
weight 28kg


  • Product Features
      1. Good frequency equivalence. The measured current waveform is sine wave, the difference between frequency and power frequency is 5Hz, use 45Hz and 55Hz two frequency to test.
      2. Strong anti-jamming ability, use different frequency method , assorted with modern hardware and software filtering techniques, make the device with strong anti-jamming ability, test results stable and reliable.
      3. High precision, intrinsic error 0.005Ω, can test the ground network of small impedance.
      4. Powerful. can test current pile, voltage pile, ground resistance, pace voltage, contact voltage
      5. Can measure the field disturbance, user estimate measuring error conveniently.
      6. With the disconnection alarm function, the error measurement is avoided.
      7. Easy to operate, menu operated, directly display the test results.

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