ES3001 soil resistivity grounding resistance tester, also called the soil resistivity tester, is a commonly used instrument for measuring commonly used grounding resistance meters. It uses a large LCD gray screen backlight display and microprocessor technology, through the microprocessor-controlled 2-wire, 3-wire, 4-wire method to test ground resistance and soil resistivity. It has a lot of grounding test function, can quickly and comprehensively measure the parameters in the grounding network。Widely used in telecommunications, electricity, meteorology, computer rooms, oil fields, power distribution lines, iron tower transmission lines, gas stations, factory grounding networks, lightning rods and so on. The instrument has the characteristics of precise, fast, simple, stable and reliable.
        ES3001 soil resistivity grounding resistance tester is controlled by a microprocessor and can accurately detect ground resistance, soil resistivity, and ground voltage. It uses a fast filtering technique to minimize interference. Displaying the resistance value of the auxiliary electrode in the same screen, which is convenient for judging the measurement error caused by environmental factors, facilitating more accurate measurement of the grounding true resistance value, and storing 500 sets of data at the same time. The online monitoring data can be monitored by the monitoring software. USB data can be uploaded to the PC and has unique     functions such as numerical maintenance and intelligent alarm prompting.
        ES3001 soil resistivity grounding resistance tester consists of host computer, monitoring software, test line, USB cable, and grounding pin. It has the functions of reading, checking, saving, reporting and printing of historical data. 

1．Range and Accuracy error

Measurement function	Measurement range	Accuracy	Resolution
Grounding resistance (R)	0.00Ω～30.00Ω	±2%rdg±5dgt (remark 1)	0.01Ω
	30.0Ω～300.0Ω	±2%rdg±3dgt	0.1Ω
	300Ω～3000Ω	±2%rdg±3dgt	1Ω
	3.00kΩ～30.00kΩ	±2%rdg±3dgt	10Ω
Soil resistivity (ρ)	0.00Ωm～99.99Ωm	ρ=2πaR (remark 2)	0.01Ωm
	100.0Ωm～999.9Ωm		0.1Ωm
	1000Ωm～9999Ωm		1Ωm
	10.00kΩm～99.99kΩm		10Ωm
	100.0kΩm～999.9kΩm		100Ωm
	1000kΩm～9999kΩm		1kΩm
Grounding voltage	AC 0.00～100.0V	±2%rdg±3dgt	0.01V

Remark：
1. Reference conditions: accuracy with Rh Rs < 100Ω。
Working conditions:Rh max＝3kΩ+100R＜50kΩ；Rs max＝3kΩ+100R＜50kΩ
2.Depends on the measurement accuracy of R,π=3.14, a:1 m～100m
 
 
2．General specification

Function	Two three four-wire measure grounding resistance, soil resistivity; Ground voltage, AC voltage measurement
Ambient temperature and humidity	23℃±5℃，below 75%rh
Power	DC 6V 4.5Ah lead-acid battery lasts more than 100 hours standby
Interference voltage	<20V (should be avoided)
Interference current	<2A (should be avoided)
Measure R electrode spacing	a＞5d
Measured electrode spacing	a＞20h
Auxiliary ground resistance	Reference condition <100Ω, working condition <5kΩ
Range	Grounding resistance: 0.00Ω～30.00kΩ
	Soil resistivity: 0.00Ωm～9999kΩm
	Grounding voltage: 0.00V～100.0V
measurement mode	Precise four-wire、 three-wire measurement, simple two-wire measurement
Measurement methods	Grounding resistance: rated current change pole method Soil resistivity: four-pole method Ground Voltage: Average Rectification(between S-ES interface)
Test frequency	128Hz
Short circuit test current	> 20mA (Sine Wave)
Open circuit test voltage	AC 28V max
Electrode spacing range	Can be set 1m ～ 100m
Change gear	fully automatic shifting 0.00Ω ～ 30.00kΩ
	fully automatic shifting 0.00 Ωm～9000kΩm
Backlight	Controllable gray screen backlight, suitable for use in dim places
Display mode	4-bit large LCD display, gray screen backlight
Measurement instructions	LED flashing indicator during measurement
LCD size	111mm×68mm
LCD display field	108mm×65mm
Instrument size	L/W/H：277.2mm×227.5mm×153mm
Standard test line length	4 strips：red 15m，black 15m, yellow 10m，green 10m each one
Simple test line	2strips：yellow 1.6m，green 1.6m each one
Auxiliary Grounding rod	4PCS：φ10mm×200mm
Measure time	Ground voltage：about 3 times/sec;
	grounding resistance、soil resistivity: about 7 seconds/time
Line voltage	Measurement below AC100V (ground voltage measurement function cannot be used to measure commercial power)
USB interface	With USB interface, software monitoring, storage data can be uploaded to the computer, save and print
Communication Line	One USB communication line, 1.5m long
Data storage	500 groups, "MEM" storage indicates, flashing "FULL" symbol indicates that the memory is full
Data review	Data review function: "MR" symbol display
Overflow display	Over-range overflow function: "OL" symbol display
Interference test	Automatic identification of interference signals, "NOISE" symbol indication when the interference voltage is higher than 5V
Auxiliary grounding test	With auxiliary ground resistance test function, 0.00KΩ ~ 30kΩ (Rh max = 3kΩ +100R <50kΩ; Rs max = 3kΩ +100R <50kΩ)
Alarm function	Alarm when the measured value exceeds the alarm setting value
Battery voltage	Real-time display of battery power, reminding timely charging when battery voltage is low
Automatic Shutdown	“APO” Indicates, automatic Shutdown After 15 Minutes
Power consumption	Standby: 40mA Max(Backlight off)
	Turn on backlight: about 43mA
	measuring：75mA Max(Backlight off)
Weight	Instrument： 2450(including battery)
	Test lines：1300g
	Auxiliary grounding rod： 850g(4PCS)
Working temperature and humidity	-10℃～40℃；below 80%rh
Storage temperature and humidity	-20℃～60℃；below 70%rh
Overload protection	Grounding resistance：AC 280V/3 seconds between H-E and S-ES ports
Insulation resistance	20MΩ以上(500V between circuit and housing)
Pressure resistance	AC 3700V/rms(between circuit and housing)
Electromagnetic properties	IEC61326(EMC)
Suitable for safety regulations	IEC61010-1(CAT Ⅲ 300V、CAT IV 150V、pollution level  2)； IEC61010-031； IEC61557-1(grounding resistance)； IEC61557-5(soil resistivity)； JJG 366-2004.

 

Instrument	1PC
Instrument bag	1PC
Auxiliary grounding rod	4PCS
Standard test line	4 Strips(red 15m；yellow 10m；green 10m；black 15m, each one)
Simple test line	2 Strips(yellow 1.6m；green 1.6m)
6VLead-acid battery (internal)	1PC
Charger	1PC
Monitoring software CD	1PC
USB communication line	1PC
Manual, certificate	1SET

ES3001 Soil resistivity grounding resistance tester

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