ОПИСАНИЕ
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.
ТЕХНИЧЕСКИЕ ХАРАКТЕРИСТИКИ
| 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 | |
МОДЕЛИ&СРАВНЕНИЕ
| 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 | ||||
UT275
UT276A
UT278A
UT273