UNI-T UT278B Ground Pile Clamp Earth Resistance Tester

Description

UNI-T UT278B Ground Pile Clamp Earth Resistance Tester The UNI-T UT278B is a handheld ground pile clamp tester that centers on simplicity and reliability for on-site earth resistance checks. Its most notable design element is the large, 2.4-inch color display, which presents measurements clearly and makes menu navigation intuitive, even in direct sunlight or low-light conditions. The unit’s molded housing incorporates a hinged, 68 mm-wide jaw that opens easily to encircle grounding rods or conductors without requiring disconnection streamlining routine inspections. Internally, the UT278B combines a rechargeable lithium-ion battery pack with real-time power monitoring, so users can trust it will remain powered through long field sessions; recharging is achieved via a standard USB socket when convenient. Onboard electronics employ fast-filtering algorithms to isolate actual ground resistance readings from stray noise, ensuring that displayed values are stable within one second of measurement. Stored data can be transferred seamlessly to a PC via USB, allowing for straightforward record-keeping and trend analysis. At under 1 kg, the tester balances weight and ruggedness: its reinforced insulation and over-voltage protection safeguard both the operator and the instrument in demanding environments. Overall, the UT278B presents a refined blend of ergonomic handling and modern display technology to expedite earth resistance diagnostics without added complexity. Features: 2.4-inch color LCD. Earth resistance measurement. Leakage current measurement. Current measurement. Grounding voltage measurement. Alarm function (visual/audible). USB data transfer (stored data upload). Built-in rechargeable lithium battery. Specifications: Category Specification Earth Resistance: 0.00 – 1800 Ω (accuracy not specified) Leakage/Current Measurement: 0.000 A – 50 A (resolution: 1 µA) Grounding Voltage: 0 – 600 V Display: 2.4-inch color LCD (46 × 29 mm) Update Rate: 1 measurement per second Data Storage: Up to 500 sets Data Upload: USB data transfer to PC Jaw Opening: 68 mm Weight: 975 g (with battery) Power Supply: Built-in 3.7 V rechargeable lithium battery Charging Interface: USB Power Consumption: 750 mA maximum Operating Temperature: –10 °C to 50 °C (< 80% RH) Storage Temperature: –10 °C to 60 °C (< 70% RH) Insulation Resistance: > 20 MΩ (500 V between circuit and case) Withstand Voltage: AC 3700 V RMS (between circuit and case) Magnetic Field Tolerance: < 40 A/m Electric Field Tolerance: < 1 V/m Safety Standards: IEC 61010-1, IEC 61010-031, IEC 61557-1 Category Rating: CAT III 300 V, CAT IV 150 V, Pollution Degree 2 Overload Protection: Yes Alarm Function: Visual and audible Backlight: Yes Auto Power Off: After 15 minutes of inactivity Applications: Power Distribution Systems. Lightning Protection Systems. Industrial Equipment. Telecommunication Installations. Construction and Facility Maintenance. Railway and Transportation Systems. Field Service and Diagnostics. Package Include: 4x 1.5 V LR6 (AA) Batteries 1x Test Ring 1x English User Manual 1x Carrying Case (Tool Box) 1x Gift Box (Outer Packaging) UNI-T UT278B Documents: Datasheet User Manual

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