UNI-T UT278B Clamp Earth Ground Tester

Ground Resistance 0.00Ω–1500Ω ; Current : AC: 0.000A–40A; Current resolution 1uA; 3 or 4-wire method resistance 0.00Ω–3KΩ; Ground voltage 600V;
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