UNI-T UT278A Clamp Earth Ground Tester

Product Description

UNI-T UT278A Clamp Earth Ground Tester

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UT270 series can quickly and safely measure the grounding system without disconnecting circuit ground lines or the need of auxiliary electrodes. It can measure resistance from 0.01Ω with a resolution of 0.001Ω, These clamps’double insulation design makes them durable tools for outdoor work and eﬀective in blocking interference signals from the environment.

Applications:
Grounding resistance measurement in electricity, telecommunication, meteorology, oilfield, architecture and industrial electric equipment

Features UNI-T UT278A Clamp Earth Ground Tester :

Resistance limit alarm
Auto range
Low battery indication

Specifications UNI-T UT278A Clamp Earth Ground Tester

Specifications	Range	UT278A
Earth Ground Resistance (Ω)	0.01~0.099Ω	±(1%+0.01)
	0.1~0.99Ω	±(1%+0.01)
	1~49.9Ω	±(1%+0.1)
	50~99.5Ω	±(2%+0.5)
	100~199Ω	±(3%+1)
	200~395Ω	±(6%+5)
	400~590Ω	±(10%+10)
	600~800Ω	±(20%+20)
	800~1200Ω	±(25%+30)
Leakage current (A)	0mA~9mA	±(2.5%+1mA)
	10mA~99mA	±(2.5%+5mA)
	100mA~299mA	±(2.5%+10mA)
	0.3A~2.99A	±(2.5%+0.1A)
	3A~9.9A	±(2.5%+0.3A)
	10A~20A	±(2.5%+0.5A)
	3A~30A	±(2.5%+0.5A)
Features
Display count		4 digits LCD display
Jaw opening		32mm
Resistance measurement frequency	＞1kHz	√
Single measurement time	1 second	√
Current limit alarm	1mA~499mA	√
Current measurement frequency	50Hz/60Hz	√
Auto power off
RS-232		√
Visual and audible alarm		√
Jamming signal recognition		√
Over-range display		√
Data storage		99
General Characterisitics
Power	1.5V battery (LR6) x 4
Display	47mm x 28.5mm
Product color	Red and grey
Product net weight	1160g
Product size	285mm x 85mm x 56mm
Standard accessories	Batteries, test ring, tool box
Standard individual packing	Gift box, English manual
Standard quantity per carton	6pcs
Standard carton measurement	610mm x 375mm x 320mm
Standard carton gross weight	18kg
Optional accessories	RS-232 interface cable, PC software CD