UNI-T UT276A Clamp Earth Ground Testers
- Earth Resistance Range: 0.01–1200Ω
- Jaw Opening Size: 32mm capacity
- Display: Four-digit LCD display
- Data Storage: Holds up to 99 reading
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Description
Advanced Ground Testing Made Effortless and Safe
The UNI-T UT276A Clamp Earth Ground Tester distinguishes itself as a cutting-edge tool designed for professionals who require both speed and safety while conducting ground resistance measurements. In an industry where accuracy and reliability cannot be compromised, the UT276A ensures electrical safety through an ingenious clamp design, enabling ground system evaluation without disconnecting circuit ground lines or needing auxiliary electrodes. This innovation not only reduces downtime in critical systems but also eliminates the risk of accidental disconnections and provides a safe operating environment for users. Its double insulation structure ensures enduring strength and operator safety, particularly beneficial when undertaking demanding outdoor evaluations. Certified to exacting CE and RoHS standards, this tester is synonymous with trustworthy performance, precision, and user confidence on any worksite worldwide.
Precision Resistivity Testing with Unmatched Accuracy Levels
Unraveling the mysteries of complex grounding networks, the UNI-T UT276A achieves measurement excellence with resistance ranges from a mere 0.01Ω, all the way up to 1200Ω. This impressive breadth offers a competitive edge for electricians, inspectors, and engineers dealing with diverse installations—from residential circuits to high-capacity industrial plants. The tester features a remarkable resolution as fine as 0.001Ω, making it the instrument of choice for pinpoint evaluations and meticulous troubleshooting. With accuracy ratings spanning as tight as ±(1%+0.01), and a digital display accurate to four decimal points, you can trust every measurement, even when precision is paramount. Such refined performance guarantees compliance with safety codes, extends asset life, and provides invaluable peace of mind in all weather conditions or field demands.
Optimized for Real-World Application and Reliability
The UT276A Clamp Earth Ground Tester isn’t only an instrument; it is a robust partner for real-world diagnostics. The tester’s ingenious design requires zero disassembly of circuit ground lines, allowing seamless use even in live or ongoing systems. This feature directly translates into massive labor savings and mitigates the risks associated with system downtime during traditional ground testing. Featuring comprehensive alarm mechanisms—including resistance limit and current alarm systems—the tester proactively warns of problematic readings, thus enabling decisive, prompt maintenance actions. For users working in challenging electromagnetic environments, UT276A’s capacity to block environmental noise and interference ensures stable diagnostics, even where lesser tools falter, confirming its practicality across diverse scenarios.
Versatile Solutions for Diverse Technical Applications
Professionals across the globe rely on the UT276A for an impressive range of applications in the electrical, civil engineering, and environmental sectors. From verifying the integrity of residential earthing networks to inspecting industrial ground loops or troubleshooting telecommunications towers, this clamp tester adapts seamlessly to every field. Power utilities use it to audit pylons, substations, and distribution points for regulatory compliance and fault detection. Renewable energy engineers deploy the UT276A to verify wind farm and solar array grounding, ensuring system safety and longevity. Facility managers benefit from its safety warnings and data logging, while infrastructure inspectors use it to regularly monitor lightning protection systems. The clamp tester’s convenience, reliability, and precision make it indispensable wherever ground continuity is critical to operational safety and compliance.
Intuitive Operation Streamlines Onsite Measurements
Navigating complex ground systems is made simple with the UT276A’s user-centric interface and software features. Its four-digit, backlit LCD renders measurement results clearly even under adverse lighting conditions, supporting confident decision-making both indoors and out. The robust 32mm jaw opening is engineered to accommodate a wide range of conductor sizes, while rapid single-second measurement capability further accelerates site audits and routine checks. Integrated data storage for up to 99 readings complements large-scale projects, allowing technicians to systematically capture and review multiple site results without paper logs. An auto-ranging function ensures ease of use, letting users focus on critical safety insights rather than manual settings or calibration procedures.
Engineered for Durability and Long-Term Performance
Safety and longevity are paramount in the construction of the UT276A Clamp Earth Ground Tester. Its rugged design, featuring double insulation, not only enhances electrical safety but also renders the instrument resilient to demanding outdoor environments and regular field use. The tester is powered by four universally available 1.5V LR6 batteries, promising reliable field operation over extended periods. At a convenient 1160g and with an ergonomic grip, it provides fatigue-free handling during prolonged site work. For professionals always on the move, the tester arrives with thoughtful accessories, including a sturdy tool box, battery set, test ring, and detailed English manual, all protected in gift box packaging for assured transport and storage.
Global Trust in Authenticity and Quality from tpt24
Discerning professionals around the world now turn to tpt24, the leading global online destination for measurement solutions, to source the UNI-T UT276A and other high-precision test instruments. As the top international store for this advanced clamp earth ground tester, tpt24 commits to delivering every unit with a rock-solid guarantee of authenticity and optimal quality, ensuring no compromise in performance for enterprises in any region. With a sophisticated logistic network, tpt24 fulfills orders quickly and securely, no matter your location—making reliable ground safety accessible in every country. Backed by a global reputation and a relentless focus on customer satisfaction, tpt24 remains the benchmark for trustworthy sales, excellent after-sales service, and technical support in professional diagnostics.
Comprehensive Feature Set for Professional Ground Testing
The UNI-T UT276A Clamp Earth Ground Tester delivers an array of features tailored for modern fieldwork and technical compliance. Key highlights include RS-232 data connectivity for seamless PC interfacing and digital report generation, making it easy to analyze and archive test results. Visual and audible alarms alert operators instantly to faults or out-of-range measurements, minimizing diagnostic errors. Its sophisticated jamming signal recognition actively suppresses environmental noise, and a practical auto power-off function preserves battery life during extended field assignments. The inclusion of optional accessories—like interface cables and software CDs—makes it easy for professionals to upgrade and integrate the tester into broader site audit and quality management systems.
Specifications
| Specifications | Range | UT276A | UT278A |
| Earth Ground Resistance (Ω) | 0.01~0.099Ω | ±(1%+0.01) | ±(1%+0.01) |
| 0.1~0.99Ω | ±(1%+0.01) | ±(1%+0.01) | |
| 1~49.9Ω | ±(1%+0.1) | ±(1%+0.1) | |
| 50~99.5Ω | ±(2%+0.5) | ±(2%+0.5) | |
| 100~199Ω | ±(3%+1) | ±(3%+1) | |
| 200~395Ω | ±(6%+5) | ±(6%+5) | |
| 400~590Ω | ±(10%+10) | ±(10%+10) | |
| 600~800Ω | ±(20%+20) | ±(20%+20) | |
| 600~1000Ω | |||
| 800~1200Ω | ±(25%+30) | ±(25%+30) | |
| Leakage current (A) | 0mA~9mA | ±(2.5%+1mA) | |
| 10mA~99mA | ±(2.5%+5mA) | ||
| 100mA~299mA | ±(2.5%+10mA) | ||
| 0mA~299mA | |||
| 0.3A~2.99A | ±(2.5%+0.1A) | ||
| 3A~9.9A | ±(2.5%+0.3A) | ||
| 10A~20A | ±(2.5%+0.5A) | ||
| 3A~30A | ±(2.5%+0.5A) | ||
| Features | |||
| Display count | 4 digits LCD display | ||
| Jaw opening | 32mm | 32mm | |
| Resistance measurement | >1kHz | √ | √ |
| frequency | |||
| Single measurement time | 1 second | √ | √ |
| Current limit alarm | 1mA~499mA | √ | √ |
| Current measurement | 50Hz/60Hz | √ | √ |
| frequency | |||
| Auto power off | |||
| RS-232 | √ | √ | |
| Visual and audible alarm | √ | √ | |
| Jamming signal recognition | √ | √ | |
| Over-range display | √ | √ | |
| Data storage | 99 | 99 | |
| General Characteristics | |||
| Power | 1.5V battery (LR6) x 4 | ||
| Display | 47mm x 28.5mm | ||
| Product color | Red and grey | ||
| Product net weight | 1160g | ||
| Product size | 285mm x 85mm x 56mm | ||
| Standard accessories | Batteries, test ring, tool box | ||
| Standard individual packing | Gift box, English manual | ||
| Standard quantity per carton | 6pcs | ||
| Standard carton measurement | 610mm x 375mm x 320mm | ||
| Standard carton gross weight | 18kg | ||
| Optional accessories | RS-232 interface cable, PC software CD | ||












