4 Terminal Earth Resistance & Soil Resistivity Tester

MODEL - KM 2040

General Specification
• 4 pole Earth Resistance Measurement upto 209.9k ohms with resolution 0.001 ohm.
• Soil Resistivity measurement 0 to 209.9k Ωm.
• Advance filtering method based on FFT (fast fourier transform) reduces noise interference.
• Rich test results displayed include resistance of earth spikes, frequency of test current, detected voltage & frequency of interference, residual resistance Rk, etc.
• Auto / Manual frequencies optional (94/105/111/128Hz).
• Compensation for residual resistance Rk.
• Data memory 1000sets.
• Confirms to CATIV 150V, CAT III 300V.
Safety : IEC61010-1 CAT III 300V, CAT IV 150V. Pollution Degree 2, IEC61010-031, IEC61557-1,5, IEC61326-1(EMC).


Electrical Specification

Earth Resistance : 2Ω : 0.05 ~ 2.09Ω / 20Ω : 0.05 ~20.9Ω / 200Ω : 0.3 ~ 209Ω /
                                 2000Ω : 3 ~2.09kΩ / 20kΩ : 0.03k ~ 20.9kΩ / 200kΩ : N/A
Accuracy : ± (3%rdg + 5dgt)
Auxillary earth resistance Rh, Rs : 8% of Re + Rh + Rs
Soil Resistivity Voltage : 2Ω : 0.3 ~ 393.7Ωm / 20Ω : 3 ~ 3937Ωm / 200Ω : 0.03 ~ 39.37kΩm /
                                        2000Ω : 0.3k ~ 393.7kΩm / 20kΩ : 3k ~ 1999kΩm / 200kΩ
Frequency : 40 ~ 500Hz
Measuring Current Im : max. 10mA
Measuring Voltage Um : 10Vrms 125Hz
Compensation of Lead Resistance Rk : 2Ω : max. 2Ω / 20Ω : max. 9Ω
Memory Capacity : 1000 groups.
Display : LCD segment
Power : AA 1.5V X 8 batteries.
Weight : approx. 900g.
Dimension : 190 x 155 x 75 mm
Standard Accessories : 4 terminal earth wires & spikes, Instruction Manual, Battery & Carrying Case

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