UNI-T UT572 Advanced Earth Resistance Tester
- Earth Resistance: Up to 40kΩ
- Soil Resistivity: Precise ρ measurement
- Test Methods: 2, 3, 4-wire
- Intelligent Features: Detects interference
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Description
Introducing UNI-T UT572 Advanced Tester
The UNI-T UT572 Advanced Earth Resistance Tester represents the pinnacle of modern earth resistance and soil resistivity measurement technology, designed for professionals who demand unparalleled accuracy, versatility, and intelligent functionality. This sophisticated instrument transcends basic earth testing, providing comprehensive capabilities for a wide array of demanding applications. It can automatically check interface connections and smartly detect interference voltage and frequency, ensuring reliable measurements even in electromagnetically noisy environments. With advanced data hold and indication functions, the UT572 simplifies complex testing procedures. Its ability to perform 2-wire, 3-wire, and crucial 4-wire measurements makes it exceptionally adaptable for diverse on-site applications, ranging from critical power equipment wiring to essential lightning protection systems, making it an indispensable tool for engineers, electricians, and safety professionals.
Unmatched Precision in Earth Resistance Measurement
The UNI-T UT572 Advanced Earth Resistance Tester sets a new standard for precision in earth resistance measurement. Unlike simpler models, the UT572 offers a comprehensive range of measurement capabilities, including highly accurate 4-wire earth resistance testing. This method, which utilizes separate current and potential leads, effectively eliminates the resistance of the test leads and auxiliary electrodes from the measurement, delivering the most accurate readings, especially in scenarios where measurement integrity is paramount. This level of precision is critical for certifying new grounding systems, ensuring compliance with stringent regulatory standards, and maintaining the long-term reliability of existing electrical infrastructure.
The UT572 also supports 2-wire and 3-wire testing, providing flexibility for various field conditions and testing requirements. The 3-wire method remains a popular choice for general grounding electrode resistance measurements, while the 2-wire method offers quick checks for continuity or when auxiliary electrodes are impractical. This versatility ensures that professionals can select the most appropriate testing method for any given situation, optimizing both accuracy and efficiency.
Critical Soil Resistivity for System Design
Beyond standard earth resistance, the UNI-T UT572 is a powerhouse for measuring soil resistivity (ρ), a critical parameter for the design and installation of effective grounding systems. Soil resistivity directly influences the size, depth, and configuration of grounding electrodes required to achieve a target earth resistance value. Without accurate soil resistivity data, grounding systems may be over-designed (costly) or, more dangerously, under-designed (ineffective and unsafe). The UT572 calculates soil resistivity using the Wenner method, displaying results based on the formula ρ=2×π×L×Re, where L is the distance between test probes and Re is the measured earth resistance. This capability is invaluable for civil engineers, electrical designers, and geotechnical professionals involved in planning new construction projects, substations, or large industrial complexes.
The ability to determine soil resistivity across various depths and locations allows for the optimal placement and design of grounding grids, ensuring maximum effectiveness for fault current dissipation, lightning protection, and achieving optimal performance for sensitive electronic equipment. This advanced feature makes the UT572 an essential tool for preventing potential electrical hazards, minimizing equipment damage, and ensuring long-term operational reliability for critical infrastructure projects.
Intelligent Detection for Reliable Results
The UNI-T UT572 Advanced Earth Resistance Tester is equipped with intelligent features that significantly enhance the reliability and accuracy of its measurements, particularly in challenging environments. It can automatically check interface connections, instantly alerting the user to any faulty connections between the tester, test leads, and electrodes. This pre-test verification step is crucial for preventing erroneous readings caused by poor contact, saving valuable time and ensuring that every measurement is conducted under optimal conditions.
A standout capability of the UT572 is its ability to detect and display disturbance voltage (Ust) and frequency (Fst). Electrical noise, stray currents, and electromagnetic interference from nearby power lines or electronic equipment can severely compromise the accuracy of earth resistance measurements. The UT572 monitors these background disturbances (up to 50V AC/DC from 40Hz~500Hz for Ust and 40Hz~500Hz for Fst) and provides readings, allowing the operator to assess the potential impact on measurements and take corrective actions if necessary. This intelligent interference detection ensures that the readings obtained are truly representative of the earth resistance and not skewed by external electrical noise, providing engineers with confidence in their diagnostic and compliance efforts.
TPT24: Global Assurance of Quality & Delivery
When it comes to acquiring the authentic UNI-T UT572 Advanced Earth Resistance Tester, TPT24 stands as the unparalleled global online retailer, setting the benchmark for quality and reliability. TPT24 is unwavering in its commitment to providing genuine products, ensuring that every purchase is backed by an ironclad guarantee of authenticity and superior quality. This dedication means customers receive a high-performing and reliable tool that adheres rigorously to UNI-T’s esteemed manufacturing standards. Beyond product integrity, TPT24 distinguishes itself with seamless worldwide delivery, ensuring that this essential measurement instrument is accessible to technical professionals in every corner of the globe.
Regardless of your geographical location – be it in North America, Europe, Asia, Africa, or Oceania – TPT24 provides a streamlined and efficient purchasing experience. This gives you the utmost confidence that your specialized tools will arrive securely and promptly, ready for immediate deployment in your critical operational tasks. TPT24’s extensive global logistics network and unwavering commitment to customer satisfaction make them the most trusted and preferred source for UNI-T measurement tools worldwide. Choosing TPT24 means investing in peace of mind, assured of the product’s authenticity, exceptional service, and reliable global delivery, solidifying its reputation as the premier online store for quality measurement equipment.
User-Friendly Features and Robust Design
The UNI-T UT572 is meticulously engineered with user-friendliness and robust design at its core, ensuring optimal performance and durability in demanding fieldwork conditions. It features a large 4-digit LCD display (125mm x 37mm), providing clear and easily legible readings, critical for swift and accurate data interpretation. The LCD backlight further enhances visibility, making the instrument perfectly usable in dimly lit environments. With a 5-second sampling time, it offers quick and responsive measurements.
For enhanced convenience and data management, the UT572 includes a data hold function, allowing users to freeze readings on the screen for easy recording. It also offers 20 sets of data storage, enabling users to save important measurement results for later analysis or reporting, streamlining documentation processes. An auto power-off feature, activating after approximately 5 minutes of inactivity, conserves battery life, while a low battery indication (≤9.5V) alerts users when power is running low, preventing unexpected interruptions during critical tests. The instrument also features double insulation, providing an additional layer of safety for the user. Its overall robust construction ensures longevity and reliability, even when subjected to the rigors of frequent field use.
Comprehensive Accessories for On-site Testing
The UNI-T UT572 Advanced Earth Resistance Tester comes with an extensive array of standard accessories, thoughtfully curated to provide a complete and immediate testing solution for a wide range of on-site applications. This comprehensive package ensures that professionals have everything they need to conduct thorough earth resistance and soil resistivity measurements without additional purchases.
The accessories include eight 1.5V LR6 batteries, ensuring ample power for extended testing sessions. For versatile connectivity, it provides simple test leads with alligator clips (double plugs x 1, single plug x 1) for basic 2-wire setups. Crucially, the kit contains four earth spikes, essential for accurate 3-wire and 4-wire measurements. The most notable inclusion is the set of standard test leads with alligator clips in varying lengths: a 40m red lead, a 20m red lead, a 20m black lead, a 10m yellow lead, and a 5m green lead. These varied lengths are vital for setting up Wenner method tests for soil resistivity across different distances and for complex multi-point earth resistance measurements. A gallus (carrying strap) is also provided for hands-free operation and easy portability. The entire package is neatly organized within a gift box, a durable carrying bag, and a robust tool box, alongside a comprehensive English manual, underscoring UNI-T’s commitment to delivering a ready-to-use, professional-grade solution for advanced earth testing.
Specifications
| Specifications | Range | UT572 |
| Earth resistance (Re) | 4Ω | ±(3%+15) |
| 40Ω | ±(3%+5) | |
| 400Ω | ||
| 4kΩ | ||
| 40kΩ | ||
| Soil resistivity (ρ) | 4Ω | ρ=2×π×L×Re (Depending on the test result of Re) |
| 40Ω | ||
| 400Ω | ||
| 4kΩ | ||
| 40kΩ | ||
| Disturbance voltage (Ust) | 50V (DC voltage/40Hz~500Hz) | ±(3%+3) |
| Disturbance frequency (Fst) | 40Hz~500Hz | ±(1%+2) |
| Features | ||
| 2/3/4-wire test | √ | |
| Earth resistance test frequency | 94/128Hz | √ |
| Soil resistivity test distances | 1~40m | √ |
| Earth resistance RH and RS test | √ | |
| Compensating resistance RK test | √ | |
| Data hold | √ | |
| Data storage | 20 | |
| LCD backlight | √ | |
| Auto power off | Around 5 minutes | √ |
| Low battery indication | ≤9.5V | √ |
| General Characteristics | ||
| Power | 1.5V battery (LR6) x 8 | |
| Display | 125mm x 37mm | |
| Product color | Red and grey | |
| Product net weight | 1100g | |
| Product size | 210mm x 175mm x 90mm | |
| Standard accessories | Batteries, simple test leads with alligator clips(double plugs x 1, single plug x 1), earth spike x 4, standard test leads with alligator clips (40m red x 1, 20m red x 1, 20m black x 1, 10m yellow x 1, 5m green x 1), gallus | |
| Standard individual packing | Gift box, carrying bag, tool box, English manual | |
| Standard quantity per carton | 2pcs | |
| Standard carton measurement | 475mm x 378mm x 335mm (0.064CBM per standard carton) | |
| Standard carton gross weight | 14kg | |











