Thread Content
The Zhengneng ES3010E Ground Resistance and Soil Resistivity Tester (Simple Version) can be used to measure ground resistance, soil resistivity, ground voltage, and other parameters using the 2-wire, 3-wire, and 4-wire methods. The range for ground resistance is 0.00Ω to 30.00KΩ, while the range for soil resistivity is 0.00ΩM to 9999KΩM. The voltage range is 0 to 600V. Before designing the grounding system for each building or server room, it is necessary to determine the appropriate size of such a system to meet the design requirements; an important parameter for making this determination is soil resistivity. Prepare to measure the soil resistivity at a depth of 5 meters. http://m.znele.com/uploads/allimg/151212/1-15121210510S37.JPG Open the instrument box; the standard accessories for the ES3010E include: 1 instrument, 1 instrument box, 4 auxiliary grounding rods, 4 test wires, 2 simple test wires, 6 1.5V batteries, a user manual, and 1 warranty card. http://m.znele.com/uploads/allimg/151212/1-151212105149622.JPG Take out the ES3010E instrument – at this point, the switch is in the OFF position. In the shutdown state, to measure the soil resistivity at http://m.znele.com/uploads/allimg/151212/1-1512121052241D.JPG, turn the rotary switch to the ρE setting – the value displayed will be 0.00Ωm. To measure the grounding resistance, turn the switch to the RE setting; for measuring the grounding voltage, use the VE setting: http://m.znele.com/uploads/allimg/151212/1-151212105240532.JPG. Insert the grounding rod into the soil, use the clip on the wire to secure the grounding rod, and insert three more grounding rods as well. Total: four wires, red, yellow, green, and black. The grounding wires are arranged in a straight line in the order of H, S, ES, E, with a distance of 5 meters between each grounding rod. http://m.znele.com/uploads/allimg/151212/1-15121210532Xa.JPG http://m.znele.com/uploads/allimg/151212/1-15121211021M29.JPG The red, yellow, green, and black colors correspond to the color-coded sockets on the instrument. http://m.znele.com/uploads/allimg/151212/1-15121211025K15.JPG http://m.znele.com/uploads/allimg/151212/1-151212110310c4.JPG Set the distance using the SET button. For example, if measuring soil at a depth of 5 meters, arrange the grounding rods in a straight line with a spacing of 5 meters between adjacent rods; set the value on the instrument to 5 meters. If the depth is 30 meters, the spacing between each rod should be 30 meters, and the instrument should be set to 30 meters accordingly. http://m.znele.com/uploads/allimg/151212/1-15121211033B30.JPG Then press the TEST button to start the measurement. A 10-second countdown begins; there are now 6 seconds left before completion. http://m.znele.com/uploads/allimg/151212/1-151212110350127.JPG Once the countdown is over, the soil resistivity displayed is 78.85Ωm. http://m.znele.com/uploads/allimg/151212/1-151212110403947.JPG The measurement is complete; turn the rotary switch to the OFF position to shut down the device. http://m.znele.com/uploads/allimg/151212/1-151212110420125.JPG The measurement is finished. In this case, sandy clay was tested; reference values for soil resistivity are provided here: http://m.znele.com/uploads/allimg/151212/1-151212110512547.png This example shows how to use the Zhengneng ES3010E grounding resistance and soil resistivity tester (simple model) to measure soil resistivity on-site.