DUOYI DY4100 Digital 3-Terminal Earth Resistance Tester

Features Earth ground resistance measurements from 0.01 ohm to 2000 ohms with 0.01 ohm resolution Data hold, low battery warning Complete with test wires, auxiliary earth bars, heavy duty oxford fabric bag and six 1.5V AA batteries Earth resistance measurement Accurate measurement (with the equipped test leads) to puncture the P and C grounding pins to the depth of the ground. They are arranged in a straight line with the grounding equipment and are spaced 5 to 10 meters apart. (Note: Make sure the grounding pins are inserted in the wet soil. If the soil of the grounding nail is dry, it is necessary to add water or stone or the sand to be wet and test) Grounding resistance test requirements: a. AC working ground, the grounding resistance should not exceed 4Ω, b, safe working ground, the grounding resistance should not be greater than 4Ω, c. DC working grounding, grounding resistance should be determined according to the specific requirements of the computer system; d, the gro