Specially designed and manufactured for the field measurement of grounding resistance, soil resistivity, grounding voltage, AC voltage and the use of new digital and micro processing technology, precision 4-wire method, 3-wire method and simple 2-wire method to measure the grounding resistance, the introduction of FFT(Fast Fourier Transform) technology, AFC(automatic frequency control) technology, with anti-interference ability and environmental adaptability. Repeated testing is consistent and strong, ensuring high precision, high stability and high reliability of measurement over the years.

Ground resistance Soil resistivity tester is composed of host, monitoring software, test line, auxiliary ground rod, communication line, etc. Host large LCD display, white screen backlight, rod chart indication, at a glance. At the same time, it can store 300 sets of data, realize historical query and online real-time monitoring function through monitoring software, dynamic display, alarm indication, and historical data reading, consulting, saving, reporting, printing and other functions.

Ambient temperature: 23℃±1℃-10℃ ~ 40℃
Environmental wet crossing: 40% ~ 60% < 80%
Instrument operating voltage: 9V±0.1V9V±1.5V
Auxiliary grounding resistance: < 100Ω < 30kΩrC, rP
Interference voltage: < 20V
Interference current: < 2A
Electrode spacing during R measurement: a > 5da > 5d
Electrode spacing when measuring ρ : a > 20ha > 20h