Earth Clamp Meter UNI-T UT278D
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The UNI-T UT278D is utilized for measuring ground resistance, leakage current, load current, ground voltage, and soil resistivity. The tool is equipped with several features to facilitate efficient measurements, including 3- and 4-wire measurements, data storage, viewing, and transmission capabilities, backlighting, alarm functionality, overload indication, and an auto power off feature. The tester also incorporates filtering technology to minimize interference.
The UT278D boasts a 2.4-inch color display, a wide measurement range, and high resolution. It is primarily employed for measuring the grounding resistance in various applications such as power lines, gasoline stations, grounding networks, lightning conductors, telecommunications, electric power, meteorology, oilfields, etc.
Features
- 2.4-inch color LCD.
- Measurement functions:
- earth resistance;
- leakage current;
- load current;
- grounding voltage;
- soil resistivity.
- Alarm function.
- USB data transfer.
- Built-in rechargeable lithium battery.
Technical Specifications
| Function | Range |
|---|---|
| Ground Resistance | 0.00 Ω–2000 Ω |
| AC Current | 0.000 A–60 A |
| Current Resolution | 1 μA |
| 3 or 4-wire Method Resistance | 0.00 Ω-30 KΩ |
| Soil Resistivity | 0.00 Ω–9999 KΩ |
| Ground Voltage | 600 V |
| General Specifications | |
| Power Supply | DC 3.7V lithium battery real-time display of battery power, reminding to charge in time |
| Jaw Size | 68 mm |
| Display | 2.4" (46 mm × 29 mm) color LCD |
| Measurement Time | 1 time/sec |
| USB Data Upload | stored data can be uploaded, saved and printed |
| Data Storage | 500 set |
| Overload | overload indication “OL” |
| Backlight | available |
| Alarm Function | available |
| Auto Power Off | around 15 minutes |
| Power Consumption | 750 mA max |
| Overload Protection | available |
| Weight | 975 g (including battery) |
| Operating Temperature and Humidity | -10°C-50°C; up to 80% RH |
| Storage Temperature and Humidity | -10°C-60°C; up to 70% RH |
| Insulation Resistance | >20 MΩ (500 V between circuit and case) |
| Withstand Voltage | AC 3700 V/RMS (between circuit and case) |
| External Magnetic Field | <40 A/m |
| External Electric Field | <1 V/m |
| Applicable Safety Regulations | IEC61010-1; IEC61010-031; IEC61557-1 (Ground resistance); CAT Ⅲ 300V, CAT IV 150V; Pollution degree: 2 |
User Manual
Download UNI-T UT278D User Manual.
Package Contents
- Earth Clamp Meter UNI-T UT278D — 1 pc.
- Test Cable — 4 pcs.
- Ground Rod — 4 pcs.
- Verify Ring — 1 pc.
- Simple Test Line — 2 pcs.
- USB Communication Line — 1 pc.
- Power Adapter — 1 pc.
- User Manual — 1 pc.
