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Features & Details
| ⚡ 4-WIRE SOIL RESISTIVITY | Measures soil resistivity (ρ from 0.00Ωm to 9000kΩm) using the Wenner 4-pole method with selectable auxiliary stake spacing from 1m to 100m. |
| 📶 FFT ANTI-INTERFERENCE | Fast Fourier Transform (FFT) digital filtering and AFC automated frequency control suppress industrial stray currents and ground voltages up to 600V. |
| 📊 0.00Ω-30KΩ RANGE | Supports 2-wire, 3-wire, and 4-wire testing modes with high 0.001Ω resolution across power substations, cellular towers, and pipeline grids. |
| 💾 300-SET DATA STORAGE | Large backlit LCD with clock timestamp, 300 measurement memory records, and USB interface to PC reporting software. |
About this item
Grounding Grid Verification & Soil Geophysical Surveys
UNI-T UT523A Intelligent Earth Resistance Tester
Inadequate grounding grid impedance exposes industrial personnel to lethal touch potentials during lightning strikes and heavy ground faults. The UNI-T UT523A high-precision earth resistance tester incorporates 2/3/4-wire methods and automated Wenner soil resistivity calculation. Designed for power generation plants, telecom base stations, and railway infrastructure, it operates under heavy EMI environments. Explore our complete selections in the Resistance Meter catalog.
Wenner 4-Pole Soil Calculation
Automatically computes soil resistivity (ρ = 2πaR) once auxiliary stake spacing (a = 1m to 100m) is keyed in, eliminating complex manual field math during geological and lightning protection surveys.
FFT Digital Filtering Technology
Employs Fast Fourier Transform digital signal processing to separate small test currents from massive 50Hz/60Hz industrial stray ground currents, ensuring stable readings even near live high-voltage transformers.
Heavy-Duty Field Kit Inclusions
Supplied inside an impact-resistant waterproof rugged case containing 4 auxiliary ground rods, 4 color-coded test wire reels, 2 simple test leads, USB cable, and software CD.
Related testing & equipment:
Digital Clamp Meter |
Electrical Measuring Instruments
Related products:
Bluetooth ground resistance clamp
FAQs
Q1: What is the Wenner method for soil resistivity?
A: Standard 2-wire tests cannot accurately measure deep soil composition. However, the Wenner 4-pole method utilizes four equally spaced ground spikes. Specifically, it injects current through the outer spikes and measures voltage internally. Consequently, it calculates the exact soil resistivity deep underground flawlessly.
Q2: How does the FFT and AFC anti-interference work?
A: Testing grounding systems near power substations exposes meters to massive AC noise. Fortunately, the Fast Fourier Transform (FFT) filters out these chaotic frequencies digitally. Additionally, the Automatic Frequency Control (AFC) shifts the testing signal away from active noise. Ultimately, your readings remain completely pure.
Q3: Can I test regular AC earth voltage with this meter?
A: Yes, you certainly can. Before measuring resistance, you must check for dangerous stray currents. Specifically, this device measures Earth Voltage up to 600V AC instantly. Therefore, you can verify if the ground line is carrying a dangerous fault charge securely.
Q4: Do I need to buy the grounding spikes separately?
A: No, you do not. This professional kit arrives completely ready for fieldwork. Specifically, we include the necessary auxiliary earth spikes natively. Furthermore, it contains standard test leads, simple test leads, and a durable carrying strap. Thus, you can begin commercial diagnostics immediately.
UNI-T UT523A Earth Resistance Tester, Intelligent 4-Wire Soil Resistivity & Earth Voltage Meter with FFT Anti-Interference
Original price was: $799.99.$729.99Current price is: $729.99.
6–12 Month Warranty
Repair & Refund support available for most products.
Free Worldwide Shipping
Ships within 3 business days.
Taxes & Duties
Buyer responsible for local import fees.
24/7 After-Sales Support
Technical assistance & video guidance within 24h.
UNI-T UT523A Earth Resistance Tester, Intelligent 4-Wire Soil Resistivity & Earth Voltage Meter with FFT Anti-Interference
Sale!
Original price was: $799.99.$729.99Current price is: $729.99.
Features & Details
| ⚡ 4-WIRE SOIL RESISTIVITY | Measures soil resistivity (ρ from 0.00Ωm to 9000kΩm) using the Wenner 4-pole method with selectable auxiliary stake spacing from 1m to 100m. |
| 📶 FFT ANTI-INTERFERENCE | Fast Fourier Transform (FFT) digital filtering and AFC automated frequency control suppress industrial stray currents and ground voltages up to 600V. |
| 📊 0.00Ω-30KΩ RANGE | Supports 2-wire, 3-wire, and 4-wire testing modes with high 0.001Ω resolution across power substations, cellular towers, and pipeline grids. |
| 💾 300-SET DATA STORAGE | Large backlit LCD with clock timestamp, 300 measurement memory records, and USB interface to PC reporting software. |
Grounding Grid Verification & Soil Geophysical Surveys
UNI-T UT523A Intelligent Earth Resistance Tester
Inadequate grounding grid impedance exposes industrial personnel to lethal touch potentials during lightning strikes and heavy ground faults. The UNI-T UT523A high-precision earth resistance tester incorporates 2/3/4-wire methods and automated Wenner soil resistivity calculation. Designed for power generation plants, telecom base stations, and railway infrastructure, it operates under heavy EMI environments. Explore our complete selections in the Resistance Meter catalog.
Wenner 4-Pole Soil Calculation
Automatically computes soil resistivity (ρ = 2πaR) once auxiliary stake spacing (a = 1m to 100m) is keyed in, eliminating complex manual field math during geological and lightning protection surveys.
FFT Digital Filtering Technology
Employs Fast Fourier Transform digital signal processing to separate small test currents from massive 50Hz/60Hz industrial stray ground currents, ensuring stable readings even near live high-voltage transformers.
Heavy-Duty Field Kit Inclusions
Supplied inside an impact-resistant waterproof rugged case containing 4 auxiliary ground rods, 4 color-coded test wire reels, 2 simple test leads, USB cable, and software CD.
Related testing & equipment:
Digital Clamp Meter |
Electrical Measuring Instruments
Related products:
Bluetooth ground resistance clamp
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