The UNI-T UT278A Clamp Earth Ground Tester is designed for professionals who need quick, accurate, and convenient ground resistance measurements. In addition, it provides a resistance limit alarm, allowing users to instantly identify when measurements exceed the preset safety threshold.
Moreover, this tester features an auto range function, which automatically selects the most suitable range for accurate readings without manual adjustment. As a result, users save time and reduce the risk of errors during testing.
Furthermore, the UT278A includes a low battery indication, ensuring that you are always aware when the power level is running low. Therefore, you can avoid unexpected downtime and maintain uninterrupted operation in the field.
With these features combined, the UNI-T UT278A Clamp Earth Ground Tester offers reliability, ease of use, and enhanced efficiency, making it an essential tool for electricians, engineers, and maintenance professionals.
Resistance limit alarm for immediate safety alerts.
Auto range for fast and precise measurement selection.
Low battery indication to prevent unexpected power loss.
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 |
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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 |
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RS-232 |
√ | √ | |
Visual and audible alarm |
√ | √ | |
Jamming signal recognition |
√ | √ | |
Over-range display |
√ | √ | |
Data storage |
99 | 99 | |
General Characteristics |
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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 | ||
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Contact +60163776793
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