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Earth Tester
Double clamp multi-function grounding resistance tester
ES3002
Function Grounding resistance、soil resistivity、DC resistance、grounding voltage、AC current
Resistance range 0.01Ω~30.00kΩ
Soil resistivity(ρ): 0.00Ωm~9999kΩm
Grounding voltage: AC 0.00~100.0V
AC current: AC 0.0mA~1000A
Test mode: Precision four-wire, three-wire method measurement, simple two-wire, selection method, double clamp method to measure grounding resistance

ES3002双钳多功能接地电阻测试仪主机 ES3002双钳多功能接地电阻测试仪主机
ES3002双钳多功能接地电阻测试仪尺寸图 ES3002双钳多功能接地电阻测试仪尺寸图
ES3002双钳多功能接地电阻测试仪主显屏 ES3002双钳多功能接地电阻测试仪主显屏
ES3002双钳多功能接地电阻测试仪附件 ES3002双钳多功能接地电阻测试仪附件
ES3002双钳多功能接地电阻测试仪包装 ES3002双钳多功能接地电阻测试仪包装
1.Rang and Accuracy
Test Function Range Accuracy Resolution
234 wire method for measuring ground resistance (Re) 0.00Ω~29.99Ω ±2%rdg±5dgt(remark 1) 0.01Ω
30.0Ω~299.9Ω ±2%rdg±3dgt 0.1Ω
300Ω~2999Ω ±2%rdg±3dgt
3.00kΩ~30.00kΩ ±2%rdg±3dgt 10Ω
DC resistance(Re) 0.0Ω~299.9Ω ±2%rdg±3dgt 0.1Ω
300Ω~2999Ω ±2%rdg±3dgt
3.00kΩ~30.00kΩ ±2%rdg±3dgt 10Ω
Selection method for measuring ground resistance(Re) 0.00Ω~29.99Ω ±2%rdg±5dgt(remark 1) 0.01Ω
30.0Ω~299.9Ω ±2%rdg±3dgt 0.1Ω
300Ω~3000Ω ±2%rdg±3dgt
Double clamp method for measuring ground resistance (Re) 0.01Ω~0.99Ω ±10%rdg±10dgt 0.01Ω
1.0Ω~9.9Ω 0.1Ω
10Ω~100Ω
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
Ground voltage AC 0.00~100.0V ±2%rdg±3dgt 0.01V
AC current AC 0.0mA~1000A ±2%rdg±3dgt 0.1mA
 
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;
 
2General specification
Function Ground resistance、Soil resistivity、DC resistance、Ground voltage、AC current
Ambient temperature and humidity 23℃±5℃,below 75%rh
Interference voltage <20V (should be avoided)
Interference current <2A (should be avoided)
Measure R electrode spacing a>5d
Measured ρelectrode spacing a>20h
Power DC 6V 4.5Ah lead-acid battery lasts more than 100 hours standby
Backlight Controllable  backlight, suitable for use in dim places
measurement mode Precise four-wire、 three-wire measurement, simple two-wire measurement、Selection method, double clamp method for measuring grounding resistance
Measurement methods 2.3.4-wire method measurement: Polarization method, measuring current 20mA Max
Soil resistivity: four-pole method
Selectivity Measurement: Polarization Method, Measuring Current 20mA Max
Double clamp method: non-contact mutual inductance measurement method, test current 1mA Max
DC resistance: polarization method
AC current: average rectification (clamp)
Ground Voltage: Average Rectification(between S-ES interface)
Test voltage waveform Sine wave
Test frequency 128Hz
Short circuit test current AC 20mA max
Open circuit test voltage AC 28V max
Electrode spacing range 1m~100m
Display mode 4-bit large LCD display, with 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
Clamp size L/T/H:101mm×27mm×214mm
Test line 4 strips:red 15m,black 15m, yellow 10m,green 10m each one
Simple test line 2strips:yellow 1.5m,green 1.5m each one
Auxiliary Grounding rod 4PCS:φ10mm×200mm
Current clamp 2PCS:φ4 mm Banana plug
Current clamp diameter φ50mm
Current clamp lead  Length 2m
Measure time AC current:about 2 times/sec;
Ground voltage:about 2 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, 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
Current clamp low current indication When measuring by the selection method or the double-clamp method, when the current signal received by the current clamp A is lower than 0.5 mA, the symbol “    ” is displayed, and at this time, the clamping direction of the current clamp A should be checked.
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: 43mA Max
measuring:120mA Max(Backlight off)
Weight Instrument: 2450g(including battery)
Current clamp:940g(2PCS)
Test lines:1300g(including simple test line)
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.
JJG 366-2004(ground resistance meter);
JJG 1054-2009(Clamp grounding resistance meter).


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