AC Powered Grounding Micro Ohmmeter

1. The whole machine is controlled by ARM, with a high degree of automation and easy operation.

2. Using high-precision ADC for higher measurement accuracy.

3. The instrument adopts switch power supply technology, with a wide measurement range.

4. Fast response speed, stable instrument measurement data, and automatic data refreshing during instrument testing.

5. The protection function is complete, which can reliably protect the impact of back electromotive force on the instrument, and the performance is more reliable.

6. Intelligent power management technology ensures that instruments always operate at their minimum power, effectively reducing internal heat generation and saving energy.

7. The instrument is equipped with a non power-off clock inside.

8. The instrument has an internal non power down memory that can permanently store data.

The electrical integrity of the grounding device refers to the electrical connectivity between various electrical equipment that should be grounded in the grounding device, as well as between the various parts of the grounding device and the equipment, that is, the DC resistance value, also known as electrical conductivity. The reliable and effective connection between the grounding down conductor of power equipment and the grounding grid is the fundamental guarantee for the safe operation of the equipment. The grounding down conductor is the connecting part between power equipment and the grounding grid. During the long-term operation of power equipment, the connection may be affected by factors such as moisture, resulting in node corrosion or even breakage, which increases the resistance of the connection point between the grounding down conductor and the main grounding grid and cannot meet the requirements of power regulations. This poses a safety hazard to the equipment during operation, and in severe cases, it may cause the equipment to lose ground and operate. The underground grounding electrode and its connecting parts of the grounding device may also experience rusting or even breakage. Therefore, it is necessary to conduct regular electrical integrity tests on grounding devices. According to the standards of the power industry, electrical conductivity should be measured using instruments with a resolution of 1mΩ and an accuracy of not less than 1.0 level. The DT-10A grounding downlead conductivity tester-also a professional earth bond tester, bond resistance tester, grounding conductor resistance tester, and Grounding Continuity Tester-developed according to this standard is a highly automated portable tester specifically designed for electrical integrity testing of grounding devices. Its various technical indicators meet or exceed the requirements of relevant standards. The instrument is easy to operate, has high accuracy, fast testing speed, good repeatability, and intuitive readings. It is an ideal specialized instrument that meets the requirements of regulations, greatly facilitating the development of experimental projects and improving work efficiency.

1. Before using this instrument, be sure to read this manual carefully.

2. This instrument can be used both indoors and outdoors, but should be avoided from places such as rain, corrosive gases, etc.

3. Instruments should avoid severe vibrations.

4. The maintenance, care, and adjustment of instruments should be carried out by professionals.

5. After the test is completed, make sure to stop the instrument and turn off the power before removing the test line.

6. During the testing process, it is prohibited to move the test clip or turn off the power supply line.