WDJD-3000B Grounding Resistance Soil Resistivity Tester is specially designed and manufactured for on-site measurement of grounding resistance, soil resistivity, grounding voltage and AC voltage. It adopts the latest digital and micro-processing technology, precise 4-wire method, 3-wire method and simple The 2-wire method is used to measure grounding resistance, and FFT (Fast Fourier Transform) technology and AFC (Automatic Frequency Control) technology are introduced, which has unique anti-interference ability and environmental adaptability. performance and high reliability. It is widely used in the measurement of grounding resistance, soil resistivity, grounding voltage and AC voltage of electric power, telecommunications, meteorology, oil field, construction, lightning protection and industrial electrical equipment.
WDJD-3000B Grounding Resistance Soil Resistivity Tester consists of host, monitoring software, test line, auxiliary ground rod, communication line, etc. The large LCD display of the host, the white screen backlight, and the bar graph instructions are clear at a glance. At the same time, it can store 300 sets of data, and realize historical query and online real-time monitoring functions through monitoring software, dynamic display, alarm indication, and historical data reading, consulting, saving, reporting, printing and other functions.
1. Baseline and working conditions
Amount of influence
influence Base conditions
Instrument working voltage
Auxiliary grounding resistance value
When measuring R, the electrode spacing
When measuring ρ, the electrode spacing
2. Basic error and performance index under benchmark conditions
Ground resistance (R)
Soil resistivity (ρ)
It depends on the measurement accuracy of R
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