Серия UT270 может быстро и безопасно измерить систему заземления, не отключая линии заземления цепи и не требуя вспомогательных электродов. Они могут измерять сопротивление от 0,01 Ом с разрешением 0,001 Ом. UT275 также может измерять ток утечки до 30А. Двойная изоляция этих зажимов делает их долговечными инструментами для наружной работы и эффективно блокирует сигналы помех от окружающей среды.
Specifications | Range | UT273 |
Earth Ground Resistance (Ω) | 0.01~0.099Ω | ±(1%+0.01) |
0.1~0.99Ω | ±(1%+0.01) | |
1~49.9Ω | ±(1.5%+0.1) | |
50~99.5Ω | ±(2%+0.5) | |
100~199Ω | ±(3%+1) | |
200~395Ω | ±(10%+5) | |
400~590Ω | ±(20%+10) | |
600~1000Ω | ±(25%+20) | |
Features | ||
Display count | 10000 | |
Jaw opening | 28mm | |
Auto power off | √ | |
Data storage | 30 | |
General Characterisitics | ||
Power | 1.5V battery (LR6) x 4 | |
Display | 47mm x 28.5mm | |
Product color | Red and grey | |
Product net weight | 1320g | |
Product size | 293mm x 90mm x 66mm | |
Standard accessories | Batteries, test ring, tool box | |
Standard individual packing | Gift box, English manual |
Specifications | Range | UT273 | UT275 | UT276A | UT278A |
Earth Ground Resistance (Ω) | 0.01~0.099Ω | ±(1%+0.01) | ±(1%+0.01) | ±(1%+0.01) | ±(1%+0.01) |
0.1~0.99Ω | ±(1%+0.01) | ±(1%+0.01) | ±(1%+0.01) | ±(1%+0.01) | |
1~49.9Ω | ±(1.5%+0.1) | ±(1.5%+0.1) | ±(1%+0.1) | ±(1%+0.1) | |
50~99.5Ω | ±(2%+0.5) | ±(2%+0.5) | ±(2%+0.5) | ±(2%+0.5) | |
100~199Ω | ±(3%+1) | ±(3%+1) | ±(3%+1) | ±(3%+1) | |
200~395Ω | ±(10%+5) | ±(10%+5) | ±(6%+5) | ±(6%+5) | |
400~590Ω | ±(20%+10) | ±(20%+10) | ±(10%+10) | ±(10%+10) | |
600~800Ω | ±(20%+20) | ±(20%+20) | |||
600~1000Ω | ±(25%+20) | ±(25%+20) | |||
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 | ±(2.5%+2mA) | ||||
0.3A~2.99A | ±(2.5%+100mA) | ±(2.5%+0.1A) | |||
3A~9.9A | ±(2.5%+0.3A) | ||||
10A~20A | ±(2.5%+0.5A) | ||||
3A~30A | ±(2.5%+300mA) | ±(2.5%+0.5A) | |||
Features | |||||
Display count | 10000 | 10000 | 4 digits LCD display | ||
Jaw opening | 28mm | 28mm | 32mm | 32mm | |
Resistance measurement frequency |
>1kHz | √ | √ | ||
Single measurement time | 1 second | √ | √ | ||
Current limit alarm | 1mA~499mA | √ | √ | ||
Current measurement frequency |
50Hz/60Hz | √ | √ | ||
Auto power off | √ | √ | |||
RS-232 | √ | √ | |||
Visual and audible alarm | √ | √ | |||
Jamming signal recognition | √ | √ | |||
Over-range display | √ | √ | |||
Data storage | 30 | 30 | 99 | 99 | |
General Characterisitics | |||||
Power | 1.5V battery (LR6) x 4 | ||||
Display | 47mm x 28.5mm | ||||
Product color | Red and grey | ||||
Product net weight | UT273/UT275: 1320g; UT276A/UT278A: 1160g | ||||
Product size | UT273/UT275: 293mm x 90mm x 66mm; UT276A/UT278A: 285mm x 85mm x 56mm | ||||
Standard accessories | Batteries, test ring, tool box | ||||
Standard individual packing | Gift box, English manual |