ES3030 digital large-scale grounding grounding resistance tester, also known as power frequency grounding resistance tester, grounding resistance meter, etc. are common instruments for testing and measuring common grounding resistance meters.It adopts new variable frequency AC power supply, dual frequency measurement technology, large touch color screen and microprocessor technology to meet the requirements of two-wire, three-wire and four-wire test impedance. It can also measure soil resistivity, step voltage, distribution potential and contact voltage. , current phase angle and other parameters.Applicable to telecommunications, electric power, meteorology, computer room, oil field, power distribution line, iron tower transmission line, gas station, factory grounding grid, lightning rod, etc., in line with the standards of power substation and lightning protection equipment testing instruments. The instrument test is accurate, fast, simple, stable and reliable.
        ES3030 digital large Grounding Resistance Tester maximum open circuit output voltage up to 400V, the maximum short-circuit current up to 5A.The microprocessor control and automatic dual-frequency technology can accurately measure and calculate the grounding impedance value under the 50Hz power frequency state under strong interference state, and the large screen display is clear at a glance.It can store 100 sets of data at the same time, and the resistance measurement range is 0.000Ω～2000Ω. Measurement data can be printed out via a thermal printer..
        ES3030 digital large Grounding Resistance Tester consists of a host computer, test leads, and grounding rods. It has functions such as reading, reviewing, saving, and printing historical data.

Function	Ground resistance measurement, soil resistivity measurement, step voltage measurement, distributed potential measurement, contact voltage measurement
Ground resistance range	0.000～2000Ω    Accuracy ±2%rdg±5dgt
Ground resistance resolution	0.001Ω
Rated measuring power	2000W
Capacity of resisting disturbance	Anti-power frequency 50hz voltage 50v
Base condition	23℃±5℃，below 70%rh   (Auxiliary ground resistance 20Ω±10%，voltage to earth＜10V)
Power	AC 220V 10A (50Hz)
Backlight	Controllable gray screen backlight
Measurement mode	four-wire measurement, three-wire measurement, two-wire measurement
Measurement method	Grounding resistance: rated current method
Short circuit test current	1A、2A、3A、4A、5A(5 file settings)
Soil resistivity electrode spacing range	Can set 1m～100m
Test frequency	45Hz、55Hz、Automatic dual frequency optional
Short circuit maximum current	AC  5A±10%  Sine wave
No-load maximum voltage	AC  400V±10%  Sine wave
Display mode	7-inch touch-control color screen
Touch screen	yes
Measurement indication	Measurement progress display, measurement prompt animation display
Instrument size	L/W/H：540mm*440mm*210mm
Standard test line length	Red 15m，black 15m，yellow 10m，green 10m，yellow 1.5m，green 1.5m each one
Auxiliary grounding rob	800mm 2pcs , 200mm 2pcs
Measurement time	ground impedance：about 1min/time
Print	Built-in thermal printer
Print paper specification	57*40mm
Data storage	100 groups, "Save successfully!" Store indication, display "Save failed, space is full!" character indicates that the storage is full
Data review	yes
Overflow display	Over-range overflow function: "OL" symbol display
Automatic shut-down	no
Power consumption	Standby: <110W
	Measure：2000W
Weight	Instrument：27kg
	Test line、Auxiliary ground rob、 Instrument bag：5.5kg
Working temperature and humidity	-10℃～40℃；Below 80%rh
Storage temperature and humidity	-20℃～60℃；Below 70%rh
Insulation resistance	10MΩ above(Between circuit and case500V)
Pressure resistance	AC 3700V/rms(Between circuit and case)
Electromagnetic properties	IEC61010-4-3，Wireless frequency electromagnetic field≤1V/m
Suitable for Safety Regulations	IEC61010-1、IEC1010-2-31、IEC61557-1,5、IEC60529(IP54)、Pollution Degree 2、CAT Ⅲ 300V

Meter	1PC
Meter bag	1PC
Three plug power cord	1PC
Auxiliary ground rob	4PCS
mesh bag	1PC
Test line	4Strips（red 15m，black 15m，yellow 10m，green 10m each 1）
Manual, certificate	1SET

ES3030 Digital large ground network tester

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