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Auto Test Earth Ground Resistance Tester Kit 100V 30KΩ 128Hz Test Frequency

Categories Digital Earth Resistance Tester
Brand Name: BOTECH
Model Number: ES3002
Certification: CE
Place of Origin: CHINA
MOQ: 1set
Price: negotiable
Payment Terms: T/T, Western Union
Supply Ability: 10sets per week
Delivery Time: 5days
color: grey and black
weight: light
accuracy: high
price: attractive
quality: high
Model number:: ES3002
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    Auto Test Earth Ground Resistance Tester Kit 100V 30KΩ 128Hz Test Frequency

    BOTECH ES3002 100V 30KΩ multifunctional Bi-poles or tri-poles digital electric ground soil earth resistance meter OEM.

    Quick Details

    Place of origin: Wuhan,China(Mainland)

    Brand Name:BOTECH

    Model number:ES3002

    Power: Electronic

    Usage: Auto testing Machine

    Power supply: DC 6V chargeable battery

    Weight: 8.05 KG

    Product description


    The Digital Earth Resistance Tester is applicaple to test earth resistance of all kinds of devices and Conductor resistance of low resistance in electric power,post,oil,chemistry,communication,mine industry and so on..It also can test resistance rate of soil and voltage to earth.

    Main Function:

    1) Test earth resistance

    2) Test soil resistivity

    3) Test conductor resistance

    4) Test earth voltage

    Base Conditions and Working Conditions:

    Influence QuantityBase ConditionWorking ConditionsRemark
    Ambient Temp23℃±1℃-10℃-40℃----
    Ambient Humidity40%-60%<80%----
    Working Voltage6V±0.1V6V±1.5VrC,rP
    Auxiliary Earth Resistance<100Ω<10kΩ----
    Interference VoltageNone<20V----
    Interference Currentnone<2A
    Electrode Distance when measuring Ra>5da>5d----
    Electrode Distance when measuring ρa>20ha>20h----

    General specification:

    FunctionMeasure grounding resistance, soil resistivity; Measurement of earth voltage, AC voltage, leakage current of AC current
    Power SupplyDC 6V(4.5AH battery, continuous standby for 300 hours )
    BacklightWhite screen backlight, suitable for dim places
    Measuring ModePrecise 4-pole measurement, 3-pole measurement, simple 2-pole measurement, selection method, double clamp method measure grounding resistance
    Measuring Method

    2/3/4 pole method: change-pole method, measurement current 20mA Max

    Selection method: change-pole method, measurement current 20mA Max

    Double clamp method: disconnect mutual inductance method, measurement current 1mA Max

    Soil Resistivity: 4-pole measurement (Wenner method)

    DC resistance: change-pole method

    AC current: mutual inductance method

    Earth Voltage: average rectification(between P(S)-ES)

    Test Voltage WaveSine wave
    Test Frequency128Hz
    Short-circuit Test CurrentAC 20mA max
    Open-circuit Test CurrentAC 40V max
    Electrode Distance RangeCan be set 1m-100m
    Display Mode4-digital super-large LCD display, blue screen backlight
    Measuring IndicatorDuring measurement, LED flash indicator, LCD countdown display, progress bar indicator
    LCD Frame Dimension111mm×68mm
    LCD Window Dimension108mm×65mm
    DimensionL×W×H: 277.2mm×227.5mm×153mm
    Size of clampLxWxH:101mm×27mm×214mm
    Standard Test Wire4 wires: each for red 15m, black 15m, yellow 10m, and green 10m
    Simple Test Wire2 wires: each for red 1.5m and black 1.5m
    Auxiliary Grounding Rod4 wires: Φ10mm×150mm Over 5000 times (Short-circuit test, interval time should be at least 30 seconds)
    Clamp2pc :1 blue-black plug and 1 red-black.
    Caliber of clampΦ50mm
    Turn Ratio1000 :1
    Lead line of clamp2m
    Measuring RateAC current: about 2 times/second
    Voltage to ground: about 2 times/second
    Earth resistance, soil resistivity: about 7 seconds/time
    Measuring TimesOver 5000 times (Short-circuit test, interval time should be at least 30 seconds)
    Voltage of circuitAC 600V
    USB InterfaceUSB interface, software supervision, storage data can be uploaded to computer, saved or printed.
    Communication WireOne piece of USB communication wire, with length 1m
    Data HoldData hold function: “HOLD” icon display
    Data Storage500 sets, “MEM” storage indicator, flash display “FULL” icon to indicate storage is full
    Data ReadData read function: “READ” icon display
    Overflow DisplayExceeding measuring range overflow function: “OL” icon display
    Low current direction of clampWhen use select method or double clamp to measure, and the current signal A receive is lower than 0.5mA,and” ” display, then would check the direction of A clamp into
    Interference TestRecognize interference signal automatically, “NOISE” icon display when interference voltage exceed 5V
    Auxiliary Grounding TestCan measure auxiliary earth resistance, 0.00KΩ-30kΩ(100R+rC<50kΩ, 100R+rP<50kΩ)
    Alarm FunctionWhen measuring value exceeds alarm setting value, there is “Toot-toot-toot” alarm hint
    Battery VoltageWhen battery voltage decreases to about 7.5V, battery voltage low icon will display, reminding to replace battery.
    Auto-shut offAutomaticlly shut down 15minutes after booting
    Power ConsumptionStandby: about 25mA Max(Backlight shut off)
    Boot 28mA Max(without backlight)
    Measurement: about 130mA Max(Backlight shut off)
    WeightTotal weight: 8.05kg (including package)
    Tester: 2430g (including battery)
    Testing wires: 940g
    Auxiliary grounding rods: 935g (4pcs)
    Working Temperature & Humidity-10℃-40℃, below 80%rh
    Storage temperature & humidity-20℃-60℃, below 70%rh
    Overload ProtectionEarth resistance: between each interfaces of C(H)-E,P(S)-ES, AC 280V/3 seconds
    Insulation ResistanceOver 20MΩ (between circuit and enclosure it is 500V)
    Withstanding VoltageAC 3700V/rms. (Between circuit and enclosure)
    Electromagnetic FeaturesIEC61326(EMC)
    Protection Type

    IEC61010-1 (CAT Ⅲ 300V,CAT IV 150V,Pollution 2), IEC61010-031;

    IEC61557-1 (Earth resistance);

    IEC61557-5 (Soil resistivity);

    JJG 366-2004(Grounding resistance meter)

    JJG 1054-2009(Clamp grounding resistance meter)

    Intrinsic error and performance indicators under base conditions:

    FunctionMeasurement RangeIntrinsic ErrorResolution

    2/3/4 pole method measure earth resistance


    Selection method to measure grounding resistance(R)0.00Ω-29.99Ω±2%rdg±5dgt0.01Ω
    Double clamp method to measure grounding resistance(R)0.01Ω-0.99Ω±10%rdg±10dgt0.01Ω

    Soil Resistivity



    According to the precision of R


    a:1 m-100m,


    Earth Voltage(50Hz/60Hz)AC 0.0-100V±2%rdg±3dgt0.1V
    AC current(50Hz/60Hz)0.0mA-1000A±2%rdg±3dgt0.01mA


    1. rC max or rPmax: additive error≤±5%rdg±5dgt

    (rC max: 4kΩ+100R<50kΩ, rP max: 4kΩ+100R<50kΩ)

    2. when interference by 5V voltage, the additive error ≤±5%rdg±5dgt

    Our Services

    We would provide the operating instruction manual and relevant technical information, and welcome you visit us at any time.

    One-year warranty time, as well as software updating for free and relevant free technical training.

    Regularly return visit by mail, telephone, and professional service according to your demands.

    Company Information

    Wuhan BOTECH is a high technology enterprise, which concentrates on development, manufacture and sales of power equipment. With the support from national grated scientific and research institute and famous colleges and universities such as HUST, Wuhan University etc,powerful R&D team, innovative and advanced technology, as well as excellent and professional stuffs, the WHBI(Wuhan Huagong Business Incubator) take us as one of the key incubated enterprises. Also we won honors in many competitions of high-tech enterprise.

    It is always be our persistent aim which pursuing quality promotion, constant innovation, service attention, brand construction. Learning advanced administration experience and management mode from developed countries and take the actual situation of China into consideration, we establish and complete modern enterprise management system, set up a creative, firm and high-quality management team. Discipline strictly, rewards and punishments fairly, administration scientifically and operating normatively.

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