AEMC 6470-B Digital Ground Resistance Tester Kit - Multi-Function - 500ft

AEMC 6470-B Kit-500ft
Datasheet  |  Manual

Price: $2,849.00

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The AEMC Digital Ground Resistance Tester performs grounding resistance, soil resistivity, bonding tests (2- and 4-wire Resistance) and earth coupling measurements. This direct reading tester measures from 0.01 to 99.99kΩ, and is auto-ranging, automatically seeking out the optimum measurement range test current and test frequency. Easy-to-use — simply connect the leads, select the test mode, Press-to-Measure and read the results. Up to 512 test results can be stored in internal memory for later recall to the display or download to a PC for analysis and hard copy reports.

The large LCD is easy-to-read and indicates grounding electrode resistance, test voltage, current and frequency. It also measures individual test electrode resistance, battery status and more depending on the measurement.

The AEMC 6470-B is Cat IV rated to 50V and is over voltage protected to greater than 250V against accidental connection to live circuits. Live voltage, if present, is also displayed on screen. In the event of a system fault, it can withstand 250V between any two terminals.  Also included, are manual and automatic test frequency selection from
40 to 513Hz; user selectable Soil Resistivity test method (Wenner or Schlumberger); user selectable 2-Wire or 4-Wire Bond Resistance test and a Earth coupling test feature.

Additional features of the AEMC 6470-B Digital Ground Resistance Tester include: a heavy-duty field case sealed against dust and water when closed (the test button is also sealed against the elements); NiMH rechargeable batteries. An external charger powered from 120V/230V 50/60Hz is included. Also can be powered and charged from a 12V vehicle battery. Testing while recharging is allowed.

The AEMC 6470-B is rugged, easy-to-use and ideal for maintenance crews and contractors performing numerous tests. It exceeds mechanical and safety specifications for shock, vibration and drop tests called out in IEC standards. The adjustable test frequency and filtering provide for rejection of high levels of interference, allowing it to be used under difficult conditions such as the presence of high stray currents that normally affect accuracy, and measured auxiliary rod resistance enables the user to optimize measurements in difficult soil environments.


  • 3-Point measurements of resistance to ground of ground rods and grids. 3-Point measurements are generally used when the electrode or grid can be easily disconnected.
  • 4-Point tests or soil resistivity measurements. Locating areas of lowest soil resistivity is essential for achieving an economical grounding installation.
  • Touch and step potential testing measurements. These tests are recommended when the ground cannot be disconnected, where ground faults are highly likely to occur, or when the "footprint" of grounded equipment (the outline of the part of equipment in contact with the earth) is comparable to the size of the ground to be tested.
  • 2- or 4-Wire tests for continuity tests on bonding or on grounding systems. This test is a DC resistive test using 250mA or more and is used to check bonding of all connection points on the ground system.
  • Earth coupling measurement and display. Used to estimate the influence of two earth resistance systems that are not connected to each other.

Purchase the AEMC 6470-B as a standalone unit or with the available kits below:

AEMC 6470-B Kit -150ft - Digital Ground Resistance Tester Kit - 150ft
AEMC 6470-B Kit -300ft - Digital Ground Resistance Tester Kit - 300ft

What's Included:

  • Meter
  • NiMH batteries
  • Optically isolated USB cable
  • DataView® software
  • External battery charger
  • AC power cord
  • One each 500 ft red and blue wire spools
  • One 30 ft green wire
  • One each 100 ft green  and black wires
  • Set of five spade lugs
  • Four auxiliary electrodes
  • Tape measure
  • Carrying case
  • And user manual
The Good:

The Bad:

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Full Review

  • 3-Point Fall-of-Potential measurement with manual or automatic frequency selection (even during measurement) from 40 up to 513Hz
  • 4-Point soil resistivity measurement with automatic calculation of Rho (ρ) and user selection of the Wenner or Schlumberger test method
  • 2- and 4-Wire DC resistance measurement (Bond testing) with automatic polarity reversal
  • 3-Point earth coupling measurement
  • Automatic frequency scan from 40 to 513Hz for optimum test accuracy in electrically noisy environments
  • Selectable test voltage limit of 16 or 32V with up to 250mA of test current
  • Automatic recognition of all electrode connections and measurement of their resistance value
  • Auto-off power management
  • Stores up to 512 complete test results in internal memory
  • Optically isolated USB communication
  • Remote set up and operation of all measurements using DataView software supplied
  • Automatic report generation
  • Rechargeable NiMH batteries from wall charger or vehicle 12V port
  • Rugged dustproof and rainproof field case – IP54 rated in closed position
  • IEC 61557 parts 4 and 5 compliant
  • Includes DataView® software for data storage, real-time display, analysis, report generation and system configuration





3-Point Measurement


Range (Auto-Ranging)

0.01Ω to 99.99kΩ


0.01Ω to 100Ω

Test Voltage

Nominal 16 or 32V user selectable

Resistance Measurement Frequency

40 to 513Hz user selectable or automatic selection

Test Current

Up to 250mA



Earth Coupling Measurement


Soil Resistivity 4-Point Measurement


Test Method

Wenner or Schlumberger selectable with automatic calculation of test results in Ω-meters or Ω-feet

Range (Auto-Ranging)

0.01 to 99.99kΩ


0.01 to 100Ω

Test Voltage

16 or 32V user selectable


73, 91.5, 101, 110 or 128Hz selectable

External Voltage Measurement


Range (Auto-Ranging)

0.1 to 65.0V – DC to 500Hz


2% of Reading + 2cts

Resistance Measurement  (Bond Testing)


Measurement Type

2-Point (with lead resistance compensation) or 4-Point (Kelvin sensing) user selectable

Range (Auto-Ranging)

2-Point 0.01Ω to 99.9kΩ; 4-Point 0.001Ω to 99.99kΩ


±2% of Reading + 2cts

Test Voltage

16VDC (+, – or auto polarity)

Test Current

Up to 250mA max

Data Storage


Memory Capacity

512 test results


Optically isolated USB

Automatic Report Generation

Yes – tabular listings and Fall-of-Potential plots

Power Source

Eight 1.2V NiMH rechargeable batteries

Recharging Source

110/220 50/60Hz external charger with 18VDC, 1.9A output or 12 VDC vehicle power



Test Lead Connection

4mm recessed banana jacks

Mechanical Shock

Per EN 61557

Vibration Test

Per EN 61557

Drop Test

Per EN 61557

Dielectric Test

3kV 50/60Hz


9.4 x 12.8 x 4.33" (240 x 185 x 110mm)


7.5 lbs (3.5kg)



Index of Protection

IP54 with cover closed DISPLAY



Display Type

Custom 256 segment multi-line LCD


Blue electroluminescent




DataView® graphing, analysis and reporting software E



Operating Temperature

14° to 122 °F (-10° to 50°C)

Storage Temperature

-40° to 158°F (-40° to 70°C) SAFETY





Safety Rating

EN6101-1 50V Cat IV, Pollution Degree 2

Double Insulation


CE Mark


The DataView software provides a convenient way to configure and control ground resistance tests from your computer. Through the use of clear and easy-to-use tabbed dialog boxes, all of AEMC 6470 functions can be configured and tests can be initiated. Results can be displayed in real time and stored in your PC.  Reports may be printed along with the operator’s comments and analysis.

  • Run tests and analyze real-time data from your PC
  • Configure all test functions and parameters from your PC
  • Customize views, templates and reports to your exact needs
  • Create and store a complete library of configurations that can be used with the AEMC  6470 as needed
  • Display Fall-of-Potential plots, tabular listings of test results, resistance vs. frequency plots, soil resistivity and bonding tests
  • Print reports using standard or custom templates you design

Minimum System Requirements:

  • Windows XP / Windows Vista / Windows 7 (32/64 bit)
  • 256MB of RAM for Windows XP
  • 1GB of RAM for Windows Vista & Windows 7 (32 bit)
  • 2GB of RAM for Windows Vista & Windows 7 (64 bit)
  • 80MB of hard disk space (200MB recommended )
  • CD-ROM drive
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