AEMC 6471 Multifunctional 4 Point Ground Resistance Tester Kit without – Duncan Instruments Canada Ltd
AEMC 6471 Multifunctional 4 Point Ground Resistance Tester Kit without Probes, 300ft

AEMC 6471 Multifunctional 4 Point Ground Resistance Tester Kit without Probes, 300ft

Regular price $ 3,946.67 CAD $ 4,180.61 CAD Sale

Kit for the Model 6471 Multifunctional ground resistance tester that offers 300 ft color-coded leads on spools, 2, 3 and 4-point ground testing, soil resistivity testing, plus clamp-on testing. Measures earth coupling and bonding.

The AEMC 6471 Ground Resistance Tester is a portable measurement instrument designed to measure Ground Resistance with 2 clamps (no auxiliary rods), Bond/Connection Resistance (2-Pole and 4-Pole Kelvin sensing), Ground Resistance (3-Pole or 4-Pole), Ground Coupling Resistance, and Selective Ground Resistance, Soil Resistivity (Wenner or Schlumberger method). The AEMC 6471 measures from 0.01 to 99.99kΩ and is auto-ranging, automatically seeking out the optimum measurement range, test frequency and test current.

Easy-to-use - Simply connect the leads, select the test mode, press Start and read the results. Up to 512 test results can be stored in internal memory for later recall to the display or downloaded to a PC via DataView® software.

The AEMC 6471 is Cat IV rated to 50V and is over voltage protected to more than 250VAC against accidental connection to live circuits. The voltage is also displayed on screen. In the event of a system fault, the AEMC 6471 can withstand 250VAC.  Additional features of the AEMC 6471 include a heavy-duty field case sealed against dust and water when closed (the test button is also sealed against the elements); manual and automatic test frequency selection from 41 to 513Hz; user selectable 3-Pole Fall of Potential or 4-Pole Soil Resistivity test methods and user selectable 2-Pole or 4-Pole Bond Resistance test method.

The AEMC 6471 Ground Resistance Tester is rugged, easy-to-use and ideal for maintenance crews performing numerous tests. It exceeds mechanical and safety specifications for shock, vibration and drop tests per IEC standards. The adjustable test frequency provides for rejection of high levels of interference, allowing it to be used under difficult conditions such as high stray currents that affect accuracy.


  • Test ground resistance using the 2 clamp method (no auxiliary rods needed)
  • 2- and 4-Pole Bond Resistance/Continuity measurement (DC Resistance) with automatic polarity reversal
  • 3-Pole Fall-of-Potential measurement with manual or automatic frequency selection
  • 4-Pole Soil Resistivity measurement with automatic calculation of Ρ and user selection of the Wenner or Schlumberger test method
  • 3-Pole Earth Coupling measurement
  • Manual and Automatic frequency scan from 41 to 513Hz for optimum test accuracy in electrically noisy environments
  • Selectable test voltage of 16 or 32V up to 250mA of test current
  • Auto-off power management
  • Automatic recognition of all electrode connections and their resistance value
  • 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
  • Rechargeable NiMH batteries from wall charger or vehicle power
  • Rugged dustproof and rainproof field case - IP54 rated in closed position
  • Grounding standards IEC 61557 parts 4 and 5 compliant
  • Includes DataView® software for data storage, real-time display, analysis, report generation and system configuration


  • 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.

AEMC 6471 300ft Kit Specifications

2 Clamp Measurement
Range O.01 to 500Ω
Resolution 0.01 to 1Ω
Measurement Frequency Auto: 1367Hz
Manual: 128Hz-1367Hz-1611Hz-1758Hz
3-Point Measurement
Range (Auto-Ranging) 0.09Ω to 99.9kΩ
Resolution 0.01Ω to 100Ω
Test Voltage Nominal 16 or 32VRMS user selectable
Resistance Measurement Frequency 41 to 513Hz automatic or user selectable
Test Current Up to 250mA
Accuracy ±2% of Reading + 1ct @ 128Hz
Soil Resistivity 4-Point Measurement
Test Method Wenner or Schlumberger selectable with automatic calculation in Ω-meters, Ω-cm or Ω-feet
Range (Auto-Ranging) 0.01 to 99.99kΩ Max: 999kΩm
Resolution 0.01 to 100Ω
Test Voltage 16 or 32V user selectable
Frequency From 41 to 128Hz selectable
External Voltage Measurement
Range (Auto-Ranging) 0.1 to 65.0Vac/dc – DC to 440Hz
Accuracy ±2% of Reading + 1cts
Resistance Measurement (Bond Testing)
Measurement Type 2-Pole (with lead resistance compensation) or 4-Pole (Kelvin sensing) user selectable
Range (Auto-Ranging) 2-Pole 0.01O to 99.9kΩ; 4-Pole 0.001O to 99.99kΩ
Accuracy ±2% of Reading + 2cts
Test Voltage 16Vdc (+, - or auto polarity)
Test Current Up to 250mA max
Data Storage
Memory Capacity 512 test results
Communication Optically Isolated USB
Power Source 9.6V rechargeable battery pack
Recharging Source 110/220 50/60Hz external charger with 18Vdc, 1.9A output or 12V vehicle power

What's included with the AEMC 6471 300ft Kit

  • AEMC 6471 meter
  • Rechargeable NiMH batteries
  • Optical USB cable
  • Power adapter 110/240V with power cord 115V US
  • Two 300 ft color-coded leads on spools (red/blue)
  • Two 100 ft color-coded leads (hand-tied, green/black)
  • Four T-shaped auxiliary ground electrodes
  • Set of five spaded lugs
  • 100 ft AEMC® tape measure, DataView® software
  • Ground tester workbook CD
  • Carrying bag for meter
  • Carrying bag for kit