UNI-T UT275A Earth Clamp Meter

Description

UNI-T UT275A Earth Clamp Meter The UNI-T UT275A Earth Clamp Meter is designed for checking grounding systems in electrical installations, power facilities, telecommunications equipment rooms, and industrial environments. Its clamp-based measurement method allows technicians to measure earth resistance and loop resistance without using auxiliary ground rods, making routine grounding inspections more convenient. Compared with the UT272A, the UT275A offers an extended earth resistance measurement range, AC current measurement, and Bluetooth connectivity for wireless data communication. It also provides automatic range selection, data storage and recall, a four-digit LCD, and automatic power-off. These functions make it suitable for grounding maintenance, electrical troubleshooting, and documenting measurement results. Features: Clamp-based earth resistance measurement. AC current measurement. Bluetooth wireless data communication. Automatic measurement range selection. Data storage and recall. Automatic calibration at startup. Over-range indication. Automatic power-off. Four-digit LCD display. Compact and portable design. Resistance measurement: i. UT272A：0.010~400Ω. ii. UT275A：0.010~1200Ω. AC Current measurement: i. 1.00mA~30.0A (UT275A only. Earth resistance accuracy: ± (1%＋0.01Ω). Max measurable diameter: φ 44mm (busbar or cable). Data storage: 500 sets. Bluetooth data communication (UT275A only). 4-digit LCD. Self-calibration when power on. IEC 61010-1; IEC61010-2-032; IEC61326. Specifications: Functional UT272A UT275A Earth Resistance (Auto range) Range Resolution Accuracy Range Resolution Accuracy 0.01Ω-0.19Ω 0.01Ω ±(1.5%+0.05Ω) 0.01Ω-0.199Ω 0.001Ω ±(1%+0.02Ω) 0.20Ω-1.95Ω 0.05Ω ±(1.5%+0.1Ω) 0.20Ω-1.99Ω 0.01Ω ±(1%+0.05Ω) 2.0Ω-49.9Ω 0.1Ω ±(1.5%+1Ω) 2.0Ω-49.9Ω 0.1Ω ±(1%+0.5Ω) 50.0Ω-99.5Ω 0.5Ω ±(2%+2Ω) 50.0Ω-99.5Ω 0.5Ω ±(1.5%+1Ω) 100Ω-199Ω 1Ω ±(2.5%+5Ω) 100Ω-199Ω 1Ω ±(2%+2Ω) 200Ω-400Ω 5Ω ±(5%+10Ω) 200Ω-395Ω 5Ω ±(5%+5Ω) N/A 400-590Ω 10Ω ±(10%+10Ω) N/A 600Ω-880Ω 20Ω ±(20%+20Ω) N/A 900Ω-1.20KΩ 30Ω ±(25%+30Ω) AC Current (Auto range/ 50Hz/60Hz) N/A 1.00mA -9.99mA 0.01mA ±(2.5%+1mA) N/A 10.0mA -99.9mA 0.1mA ±(2.5%+5.0mA) N/A 100mA -999mA 1mA ±(2.5%+10mA) N/A 1.00A-9.99A 0.01A ±(2.5%+0.2A) N/A 10.0A-30.0A 0.1A ±(2.5%+0.5A) Functional 1, Earth resistance test; 2, Loop resistance test 1, Earth resistance test; 2, Loop resistance test; 3, AC test Max measurable conductor dia. Max Ф44mm Max Ф44mm Display 4-digit LCD 4-digit LCD Sampling rate 2 time/s 2 time/s Data storage 500 set 500 set Over-range indication YES YES Data recall YES YES Bluetooth N/A YES APO Around 10 minutes without operation Around 10 minutes without operation Insulation Resistance 50MΩ/1000V 50MΩ/1000V Power consumption Around 50mA(max:100mA) Around 50mA(max:100mA) Working temp. -10ºC ~50ºC relative humidity below 85%, no condensation. Storage temp. -20ºC ~ 60ºC relative humidity below 85%, no condensation. IP Rating IP40 IP40 Safety regulation grade IEC 61010-1: 2001 (CATIV 300V; Pollution degree: 2) IEC 61010-2-032: 2002 IEC 61326: 2000 (EMC standard) IEC 61010-1: 2001 (CATIV 300V; Pollution degree: 2) IEC 61010-2-032: 2002 IEC 61326: 2000 (EMC standard) Product size 270mm×94mm×58mm 270mm×94mm×58mm Accessories 1, R6P batteries: 4pcs; 2, Manual: 1pcs; 3, Calibration loop: 1pcs (1Ω & 10Ω); 4, Tool box: 1pcs. Applications: Grounding system inspection and maintenance Earth resistance and loop resistance testing AC current measurement in grounding conductors Electrical installations and power distribution facilities Telecommunications grounding systems Industrial equipment maintenance Electrical fault investigation Grounding measurement documentation Package Includes: 1 × UNI-T UT275A Earth Clamp Meter 4 × R6P AA batteries 1 × User manual 1 × Calibration loop set (1 Ω and 10 Ω) 1 × Tool box. Documents: Datasheet.

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