Extech 382357 Ground Resistance Clamp

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Test earth resistance of multi-grounded systems without the use of auxiliary earth spikes. High resolution ground resistance clamp tester.

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"High 0.002 ohms Resolution Earth Resistance Clamp Meter"

  • Description

    Extech 382357 Ground Resistance Clamp

    The Extech 382357 Ground Resistance Clamp is a high accuracy clamp-on device that allows users to measure ground resistance without the use of auxiliary ground spikes and without having to disconnect the ground under test.

    This Earth Resistance Tester has a data logging function that enables up to 116 records to be stored and recalled when required. Suitable for use on multiple point grounded systems, the Extech 382357 is the perfect Clamp-On Ground Resistance Tester for verifying earth resistance of cellular transmission towers and telephone-electrical ground rods.

    Extech 382357 Earth Resistance Clamp Tester Features:

    • Autoranging ground resistance measurements from 0.03 to 1500 with 0.002 resolution
    • True RMS AC Leakage current range of 0.2mA to 30.00A
    • Programmable datalogging with 116 data points
    • Programmable Hi/Lo alarm
    • 23mm Jaw size for large ground rods
    • Simplifies ground resistance measurements on multiple point ground systems
    • Auto power off
    • Verification resistors confirm accuracy of meter
    • Automatic Self Calibration when powered on
    • 9999 Count LCD display with Data Hold
    • Electrical Noise Detection feature prevents inaccurate readings
    • Data hold
  • Specification

    Ground Resistance

    Range (Ω) Resolution (Ω) Accuracy
    0.025 to 0.25 0.002 ±(1.5% + 0.05Ω)
    0.250 to 1.000 0.02 ±(1.5% + 0.05Ω)
    1.001 to 9.999 0.02 ±(1.5% + 0.1Ω)
    10.00 to 50.00 0.04 ±(1.5% + 0.1Ω)
    50.01 to 99.99 0.04 ±(1.5% + 0.5Ω)
    100.0 to 200.0
    0.4
    ±(1.5% + 0.5Ω)
    200.1 to 400.0 2 ±(5.0% + 5Ω)
    400.0 to 600.0 5 ±(10% + 10Ω)
    600.1 to 1500 20 ±20%

    AC Leakage Current

    Range Resolution Accuracy
    0.300 to 1.00mA 0.001mA ±(2.0% ± 0.05mA)
    1.00 to 10.00mA 0.01mA ±(2.0% ± 0.03mA)
    10.0 to 100.0mA 0.1mA ±(2.0% ± 0.3mA)
    100 to 1000mA 0.1mA ±(2.0% ± 0.3mA)
    0.20 to 4.00A 0.01A ±(2.0% ± 0.03A)
    4.00 to 30.00A 0.01A ±(3.0% ± 0.03A)
    • Resistance Test Frequency: 1.667kHz
    • Dimensions: 258 x 110 x 47mm
    • Weight: 700g
  • Supplied Accessories

    • 9V battery
    • Resistance Check Plate
    • Durable Metal Storage Case
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    • Saturday Pre 12pm Delivery (on select products only) at £19.95*
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    *UK mainland only

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