Features of UT270+ Series Clamp Earth Ground Testers
UT278A+
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UT270+ series can quickly and safely measure the grounding system without disconnecting circuit ground lines or the need of auxiliary electrodes. It can measure resistance from 0.01Ω with a resolution of 0.001Ω. These clamps’ double insulation design makes them durable tools for outdoor work and effective in blocking interference from the environment.
Features of UT270+ Series Clamp Earth Ground Testers
Certificates: CE, UKCA
● Resistance limit alarm
● Low battery indication
● Auto calibration
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UNI-T UT278A+ Clamp Earth Ground Tester
UT270+ series can quickly and safely measure the grounding system without disconnecting circuit ground lines or the need of auxiliary electrodes. It can measure resistance from 0.01Ω with a resolution of 0.001Ω. These clamps’ double insulation design makes them durable tools for outdoor work and effective in blocking interference from the environment.
Features of UT270+ Series Clamp Earth Ground Testers
Certificates: CE, UKCA
● Resistance limit alarm
● Low battery indication
● Auto calibration
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Specifications | Range | UT278A+ |
Earth Ground Resistance (Ω) | 0.01~0.099Ω | ±(1%+0.01) |
0.1~0.99Ω | ±(1%+0.01) | |
1~49.9Ω | ±(1%+0.1) | |
50~99.5Ω | ±(1.5%+0.5) | |
100~199Ω | ±(2%+1) | |
200~395Ω | ±(5%+5) | |
400~590Ω | ±(10%+10) | |
600~800Ω | ±(20%+20) | |
600~1000Ω | ||
800~1200Ω | ±(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 | ||
Display count | 4 digits LCD display | |
Jaw opening | 32mm | |
Visual and audible alarm | √ | |
Auto power off | √ | |
Jamming signal recognition | √ | |
Over-range display | √ | |
Data storage | 300 | |
Display type | EBTN | |
Ω+A display | √ | |
General Characteristics | ||
Power | 1.5V battery (LR6) x 4 | |
Display | 47mm x 28.5mm | |
Product net weight | 1.18kg | |
Product size | UT276A+/278A+: 285mm x 85mm x 56mm | |
Standard accessories | Batteries, test ring, English manual |
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