UT278C/D
Ground Pile Clamp Earth Resistance Tester

UT278C/D Earth Clamp Meter, also called Loop Resistance Tester, is used for grounding resistance test. It has multiple functions such as clamping measurement, 3- or 4-wire measurement, voltage/current measurement, data storage/viewing, alarming, auto power off and more. With fast filtering technology employed, interference can be minimized.

Designed with 2.4-inch color screen, UT278C/D is characterized by aesthetic appearance, easy to carry, wide range, high resolution, stable performance, strong anti-interference ability. It is mainly used to measure ground resistance of power distribution lines, gas stations, grounding grids, lightning rods, telecommunication, electric power, meteorology, oil fields and others.

Models: UT278C, UT278D

Features of UT278C/D Ground Pile Clamp Earth Resistance Tester

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

SPECIFICATIONS

Specifications of UT278C/D Ground Pile Clamp Earth Resistance Tester

Technical Specifications
Function Range (UT278C) Range (UT278D)
Ground Resistance 0.00Ω–1800Ω 0.00Ω–2000Ω
Leakage current 0.000A–50A 0.000A–60A
Current resolution 1uA 1uA
3 or 4-wire method resistance 0.00Ω–30KΩ 0.00Ω–30KΩ
Soil Resistivity 0.00Ω–9999KΩ 0.00Ω–9999KΩ
Ground voltage 600V 600V
Accuracy Guaranteed
Temperature Humidity		 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

APPLICATIONS

Applications of UT278C/D Ground Pile Clamp Earth Resistance Tester

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