The UT27X series clamp-on ground resistance tester, also called loop resistance tester, is used to measure ground resistance. With a two-color mold, it boasts an elegant, premium look, easy operation and portability, along with accuracy, reliability, stable performance and strong anti-interference capability. It is an essential instrument for electrical and mechanical installation and maintenance in telecommunications, power, equipment rooms and other fields.
Models in UT27X series: UT272A, UT275A
Features of UT272A/UT275A Earth Clamp Meter
Certifications: CE
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 current test |
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| 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) |
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| 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. | |||||
