Name: UNI-T UT278B & C & D Series Ground pile clamp earth resistance tester
Availability: InStock

UNI-T UT278B & C & D Series Ground pile clamp earth resistance tester:

The UNI-T UT278B, UT278C, and UT278D Series Ground Pile Clamp Earth Resistance Testers are specialized instruments designed for measuring earth resistance in grounding systems. These testers feature a robust clamp design that allows for non-invasive measurements, making them ideal for testing ground resistance without the need for disconnection.

UT278B/C/D Series grounding clamp meters 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

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Key Features:

2.4-inch color LCD
Earth resistance measurement
Leakage current measurement
Load current measurement
Grounding voltage measurement
Soil resistivity measurement (UT278C & D)
Alarm function
USB data transfer
Built-in rechargeable lithium battery

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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