Model: ES-3000

Introduction

ES3000 Digital Earth Resistance Tester is specially designed and manufactured for field measurement, adopting the latest digital and micro-processing technology, 3-pole or 2-pole method for earth resistance measurement, with a unique function of wire resistance verification, anti-interference capability and the ability to adapt to the environment, to ensure high precision, high stability and reliability for prolonged measure, which is widely used in electric power, telecommunications, meteorology, oil field, construction, lightning protection, industrial electrical equipment and other earth ground resistance measurement.

ES3000 Digital Earth Resistance Tester has a unique function of wire resistance verification，more accurate on measuring on-site low value earth ground resistance, which can avoid error caused by resistance change due to prolonged usage of testing wire; avoid error caused by testing wire that is failed to be fully inserted into tester interface or by poor contact; avoid error caused by users’ replacing or lengthening testing wires.

ES3000 Digital Earth Resistance Tester is composed of host machine, monitoring software, testing wires, communication wires and others. The large LCD display of host machine is with white backlight that can be seen clearly. At the same time it can store 500 sets of data, with alarm settings and alarm indicator, and with the functions like historical data access, reading, preservation, and so on.

Technical Specifications

Measuring Functions	Measuring Range	Accuracy	Resolution
Earth Ground Resistance	0.01Ω~30Ω	±1.5%rdg±5dgt  (Auxiliary earth ground resistance 100Ω±5%，voltage to ground＜10V)	0.01Ω
	0.1Ω~300Ω		0.1Ω
	1Ω~3000Ω		1Ω
Earth Ground Voltage	0~10.00V AC	±1.5%rdg±3dgt	0.01V
	10.1~100.0V		0.1V

(Remark: 23℃±5℃，below 75%rh)

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