UNI-T UT272A Earth Clamp Meter

Description

UNI-T UT272A Earth Clamp Meter The UNI-T UT272A Earth Clamp Meter is designed for measuring earth resistance in grounding systems used in electrical installations, telecommunications facilities, and equipment rooms. Its clamp-based measurement method enables technicians to test grounding loops conveniently without the traditional auxiliary electrode setup required by many conventional earth resistance testers. The UT272A features an automatic measurement range, a four-digit LCD, data storage, measurement recall, and automatic calibration at startup. Its clamp accommodates conductors or busbars up to 44 mm in diameter. The instrument also includes over-range indication and automatic power-off to help conserve battery life, making it suitable for electrical maintenance, grounding inspections, and troubleshooting. Features: 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: Electrical grounding system inspection. Earth resistance and loop resistance testin. Telecommunications grounding maintenance. Electrical equipment room inspections. Industrial electrical maintenance. Grounding system troubleshooting. Preventive maintenance of electrical installations. Package Includes: 1x UNI-T UT272A Earth Clamp Meter. Documents: Datasheet.

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