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UT278B & C & D Series Ground pile clamp earth resistance tester
UT278B/C/D Series grounding clamp meter are used for the grounding resistance test. With clamp measurement, 3-wire or 4-wire measurement, voltage/current measurement, data storage/view, alarm, automatic shutdown, and other functions.
Models: UT278B, UT278C, UT278D
Description
Features of UT278B & UT278C & UT278D Series Ground pile clamp earth resistance tester
Certifications (UT278 series only): ROW
Specifications
| Specifications | |||
| Function | Range (UT278B) | Range (UT278C) | Range (UT278D) |
| Ground Resistance | 0.00Ω–1500Ω | 0.00Ω–1800Ω | 0.00Ω–2000Ω |
| Current (AC) | 0.000A–40A | 0.000A–50A | 0.000A–60A |
| Current resolution | 1uA | 1uA | 1uA |
| 3 or 4-wire method resistance | 0.00Ω–3KΩ | 0.00Ω–30KΩ | 0.00Ω–30KΩ |
| Soil Resistivity | N/A | 0.00Ω–9999KΩ | 0.00Ω–9999KΩ |
| Ground voltage | 600V | 600V | 600V |
| Accuracy Guaranteed Temperature Humidity |
23℃±5℃，below 75%rh | 23℃±5℃，below 75%rh | 23℃±5℃，below 75%rh |
| Features | |||
| Power supply | 1, DC 3.7V lithium battery;
2, Real-time display of battery power, reminding to charge in time |
||
| Jaw size | 68mm | ||
| Screen | 2.4 inch (46*29mm) color LCD | ||
| Measurement time | 1 time/sec | ||
| USB data upload | The stored data can be uploaded, saved and printed. | ||
| Data storage | 500 set | ||
| Overload | Overload indication “OL” | ||
| Backlight | √ | ||
| Alarm function | √ | ||
| Auto power off | Around 15 minutes | ||
| Power consumption | 750mA MAX | ||
| Overload protection | √ | ||
| Weight | 975g (including battery) | ||
| Operating temperature | -10℃ — 50℃; below 80%RH | ||
| Storage temperature | -10℃ — 60℃; below 70%RH | ||
| Insulation resistance | >20MΩ (500V between circuit and case) | ||
| Withstand voltage | AC 3700V/RMS (between circuit and case) | ||
| External magnetic field | ＜40A/m | ||
| External electric field | ＜1V/m | ||
| Applicable safety regulations | IEC61010-1; IEC61010-031; IEC61557-1(Ground resistance); CAT Ⅲ 300V, CAT IV 150V; Pollution degree: 2 |
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Applications
It is suitable for measuring the grounding resistance of various industries and scenarios such as telecommunications, electricity, meteorology, computer rooms, oil fields, power distribution lines, tower transmission lines, gas stations, factory grounding grids, and lightning rods.
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