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    Double Clamp Earth Resistance Tester, 0 to 300kΩ

    $1,446.46
    Multi-digital earth resistance tester provides a 0.00Ω~300kΩ range, large LCD display, a large-capacity rechargeable lithium battery pack, and a USB interface for data upload. Double clamp on ground resistance tester is suitable for measuring ground resistance, DC resistance, soil resistivity, ground current, and ground voltage. Several resistance testing methods for selection.
    SKU: ATO-ERT-300k
    30-day Returns
    Free Shipping
    Delivery date: 6-12 days

    Low price earth resistance tester is specially designed for measuring ground resistance, DC resistance, soil resistivity, ground current, and ground voltage, equipped with a 0~300kΩ range, large LCD display, a large-capacity rechargeable lithium battery pack, and a USB interface for data upload. Waterproof double clamp-on ground resistance tester is suitable for use in outdoor construction sites.

    Features

    • Clamp ground resistance tester is available with a 0~300kΩ measure range and a waterproof case.
    • It adopts import FFT (Fast Fourier Transform Algorithm) and AFC (Automatic Frequency Control) technology. With unique antijamming capability and environmental adaptability, high consistency of retest.
    • Package with waterproof protection box, waterproof, crash-proof, anti-drop and durable, large-capacity rechargeable lithium battery pack, such tester especially suitable for application at the outdoor construction site.
    • Digital clamp on earth resistance tester is equipped with a large LCD display, alarm function, overload protection function, and automatic shutdown function, also with data storage, data access and data upload by USB interface function.

    Specifications

    Model ATO-ERT-3200C
    Power Supply DC7.4V 2600mAh rechargeable lithium battery
    2/3/4-wire Method Measure Earth Resistance Range: 0.00Ω~300KΩ; Resolution: 0.01Ω; Accuracy: ±2%rdg±3dgt
    Selection Method Measure Earth Resistance Range: 0.00Ω~3000Ω; Resolution: 0.01Ω; Accuracy: ±2%rdg±3dgt
    Double Clamp Method Measure Earth Resistance Range: 0.00Ω~100Ω; Resolution: 0.01Ω; Accuracy: ±10%rdg±5dgt
    Earth Voltage Measurement Range: 0.0~100V AC; Resolution: 0.1V; Accuracy: ±2%rdg±3dgt
    Earth current Measurement Range: 0.00mA~600.0A Resolution: 0.00mA; Accuracy: ±2%rdg±3dgt
    Soil Resistivity Measurement(ρ) Range: 0.00Ωm~9000KΩm; Resolution: 0.01Ωm
    CT Size φ70mm
    Short-circuit Test Current AC 250mA max
    Open-circuit Test Current AC 40V max
    Test Frequency 128Hz/111Hz/105Hz/94Hz (AFC)
    Data Storage 2000 groups
    Automatic Shutdown 15 minutes after power on, will automatically shut down without any operation
    LCD Dimension LCD Frame Dimension:  128mm×75mm; LCD Display Dimension: 124mm×67mm
    Tester Dimension 80mm(L)×260mm(W)×160mm(H)
    Total Weight 6700g (include package)
    Working Current Standby: around 25mA (Backlight close); Measurement: 100mA (Backlight close)
    Test Wires Red 40m, yellow 30m, green 20m, black 10m, red 1.6m, black 1.6m (total 6 pcs wires)
    Auxiliary Ground Rod 4PCS: φ10mm×150mm
    USB Interface With a USB interface, software monitoring, storage data can be uploaded to computer, saved and printed
    Bluetooth Communication Support the Bluetooth communication function of the Android system, after installation the APP, mobile terminals can be used to test operations and view test records
    Alarm Function

    Measure value exceeds alarm setting value, will "Toot-toot-toot" alarm indication

    Battery Voltage While the battery voltage decreases to around DC 7.2V±0.1V, will display low battery voltage symbol, and remind to replace the battery
    Accessories Tester: 1PC; Current Clamp Sensor: 2PCS; Ground Rod: 4PCS; Testing wires: 6PCS; USB communication cable: 1PCS; Special recahrager: 1PCS; Tester bag: 1PCS


    Range and Accuracy

    Measurement Function Measurement Range Accuracy Resolution
    2/3/4-wire method to measure grounding resistance (R~), DC resistance (R—) 0.000Ω~9.999Ω ±2%rdg±0.05Ω 0.001Ω
    10.00Ω~29.99Ω ±2%rdg±5dgt 0.01Ω
    30.0Ω~299.9Ω ±2%rdg±3dgt 0.1Ω
    300Ω~2999Ω ±2%rdg±3dgt
    3.00kΩ~300.00kΩ ±4%rdg±3dgt 10Ω
    Selective method to measure grounding resistance (R~) 0.000Ω~9.999Ω ±2%rdg±0.05Ω 0.001Ω
    10.00Ω~29.99Ω ±2%rdg±5dgt 0.01Ω
    30.0Ω~299.9Ω ±2%rdg±3dgt 0.1Ω
    300Ω~3000Ω ±2%rdg±3dgt
    Double clamp method to measure grounding resistance (R~) 0.01Ω~0.99Ω ±10%rdg±5dgt 0.01Ω
    1.0Ω~29.9Ω 0.1Ω
    30Ω~100Ω
    Soil resistivity (ρ) 0.00Ωm~99.99Ωm Accuracy: According to the precision of R
    (ρ=2πaRa:1 m~100m;π=3.14)
    0.01Ωm
    100.0Ωm~999.9Ωm 0.1Ωm
    1000Ωm~9999Ωm 1Ωm
    10.00kΩm~99.99kΩm 10Ωm
    100.0kΩm~999.9kΩm 100Ωm
    1000kΩm~9000kΩm 1kΩm
    Ground interference voltage (V~) 50Hz/60Hz AC 0.0~100.0V ±2%rdg±3dgt 0.1V
    Ground interference current (A~) 50Hz/60Hz AC 0.00mA~600.0A ±2%rdg±3dgt 0.01mA

    Note

    • The additional error when rC max or rP max is ≤±5%rdg±5dgt.
    • rC max: 4kΩ+100R<50kΩ, rP max: 4kΩ+100R<50kΩ
    • The additional error at 2.5V interference voltage is ≤±5%rdg±5dgt.

    Details

    Double clamp earth resistance tester details

    Applications

    ATO provides earth resistance testers with a measurement range of 0.00Ω-300kΩ, which are widely used in ground resistance measurement and loop resistance measurement in fields such as electric power, telecommunications, meteorology, oil fields, construction, and industrial electrical equipment. When measuring the grounding system with a loop, the ground resistance tester does not need auxiliary electrodes and does not need to disconnect the grounding wire, which is safer and faster.

    Double clamp earth resistance tester applicationsTips: 3-Wire Method for Measuring Earth Resistance

    Find two independent grounding bodies RB and RC near the grounding body RA to be tested, and measure RA and RB respectively. The values of RA and RC, RB and RC are calculated to obtain the value of RA. This is the three-wire method of the ground resistance tester.

    Three wire method of earth resistance tester

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