KD2531T2 Equipotential Connection Resistance Tester

　　It can be used to measure the equipotential connection resistance between the metal components in the building, the resistance of the connecting conductors between various electrical equipment and the grounding grid, the contact resistance of switch sockets and other low-value resistances. It meets and is superior to the requirements for on-resistance test equipment in the GB/T 21431-2015 building lightning protection device testing technical specifications.

　　Features

• 　　Four-wire method test eliminates the influence of lead resistance on the test from the principle of measurement, and only needs to test once to get the true on-resistance value, which greatly improves work efficiency;
• 　　In order to facilitate on-site setting-up, C1P1 and C2P2 are both balanced double-core wires to ensure good contact between the test points;
• 　　3 1/2 LCD large-screen digital display, with backlight, convenient for reading in dark rooms or when the light is insufficient;
• 　　The measurement accuracy is high, the repeatability is good, and it can accurately measure the change of 1mΩ in 10 resistances;
• 　　Provide two measurement modes: "4s short-time measurement" and "5 hours continuous measurement". The "4s short-time measurement" mode is suitable for detection in gas stations, weak electrical rooms and other explosion-proof places, and the port does not spark. The "5 hours continuous measurement" mode is suitable for new houses or routine inspections. The instrument is in working mode for a long time, which can greatly improve the inspection efficiency;
• 　　Large-capacity lithium battery power supply, can work continuously for 8 hours, with power display and under-voltage alarm function. It can also be powered by dry batteries as an emergency power source when you forget to charge.