Features of UT278B & UT278C & UT278D Series Ground pile clamp earth resistance tester
UT278D
New
UT278D 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.
Features of UT278B & UT278C & UT278D Series Ground pile clamp earth resistance tester
Certifications (UT278 series only): ROW
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					UNI-T UT278D Ground Pile Clamp Earth Resistance Tester
UT278D 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.
Features of UT278B & UT278C & UT278D Series Ground pile clamp earth resistance tester
Certifications (UT278 series only): ROW
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| Specifications | |
| Function | Range (UT278D) | 
| Ground Resistance | 0.00Ω–2000Ω | 
| Current (AC) | 0.000A–60A | 
| Current resolution | 1uA | 
| 3 or 4-wire method resistance | 0.00Ω–30KΩ | 
| Soil Resistivity | 0.00Ω–9999KΩ | 
| Ground voltage | 600V | 
| Accuracy Guaranteed Temperature Humidity | 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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