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AEMC Ground Resistance Tester Model 6472

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Price: From $4,450.00 to $5,340.00
Manufacturer: AEMC

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Model Options:

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Accessories/Replacements
Bag - Small Flat Black Canvas Bag (+ $41.00)
Multi-purpose Large Canvas Bag (+ $172.00)
Ground Resistance Test Kit for 3-Point Testing - 150ft Test Kit for 3-Point Testing, Kit (Carrying Bag, [2] 150 ft Color-coded Leads on Spools (Red/Blue), [1] 30 ft Lead (Green), [2] 5 ft Color-coded Leads (Red/Blue), [2] 14.5" T-shaped Auxiliary Ground Electrodes, [1] Set of 5, Spaded Lugs and [1] 100 ft AEMC® Tape Measure) (+ $625.00)
Test Kit for 3-Point testing (supplemental for 4-Point testing) - includes two 100 ft color-coded leads (hand tied - green and black), one 30 ft lead (green) and two 14.5" T-shaped auxiliary ground electrodes and carrying bag. (+ $300.00)
Set of 2, 14.5" T-shaped Ground Rods (+ $50.00)
Bag - Replacement Carrying Bag (+ $108.00)
Optical USB Cable (+ $73.65)
Inverter - 12VDC to 120VAC 200 Watt for Vehicle Use (+ $95.00)
AC Current Probe Model MN82 (+ $380.00)
AC Current Probe Model SR182 (+ $520.00)
Fuse - Set of 5, 0.63A, 250V (5 x 10mm) (+ $12.50)
Set of 2 reel caddies for use with ground kit spools (+ $132.50)
Replacement 9.6V Rechargeable Battery Pack (+ $195.00)
Red replacement wire (500 ft) on reel (+ $233.50)
Blue replacement wire (500 ft) (+ $233.50)
AEMC Ground Resistance Tester Model 6472

The AEMC Digital Ground Resistance Tester Model 6472 (2135.51) is a portable measurement instrument designed to measure Bond Resistance, Ground Resistance (with and without clamps), Soil Resistivity, Earth Coupling, Step & Touch Potential.

The Model 6472 measures from 0.01 to 99.99kΩ and is auto-ranging, automatically seeking out the optimum measurement range, test frequency and test current. The adjustable test frequency (either manual or automatic) from 40 to 5078Hz test voltage provides 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. Up to 512 test results can be stored in internal memory for later recall to the display or downloaded to a PC using DataView® software (included) for Automatic Report Generation, Automatic Fall-of-Potential Plot Generation, Frequency/Resistance Plots and much more.

When used in combination with the GroundFlex® Adapter Model 6474 (factory supplied product only), Power Transmission Tower and Tower Leg Ground Resistance testing is also available.


Product Features:
  • Ground Integrity Measurement
  • Ground Resistance testing using the 2 clamp method (no auxiliary rods needed) using optional current probes
  • 2- and 4-Wire Bond Resistance/Continuity Measurement (DC Resistance) with automatic polarity reversal
  • 3-Point Fall-of-Potential measurement with manual or automatic frequency selection
  • 4-Point soil resistivity measurement with automatic calculation of Rho (ρ) and user selection of the Wenner or Schlumberger test method
  • 3-Point Earth coupling measurement
  • Ground Resistance (3-Pole or 4-Pole)
  • Ground Coupling Resistance
  • Selective Resistance
  • Ground Potential
  • Ground Resistance with 2 clamps (no auxiliary rods)
  • Test Voltage 16 or 32V; 41 to 5078Hz
  • Two additional test voltages of 10 and 60 Volts can be manually selected
  • Measures Ground Impedance at frequencies up to 5kHz to test lightning strike protection
  • Manual and automatic frequency scan from 41 to 5078Hz for optimum test accuracy in electrically noisy environments
  • Selectable test voltage of 16 or 32V up to 250mA of test current
  • Auto Power OFF feature
  • Automatic recognition of all electrode connections and their resistance value
  • Stores up to 512 complete test results
  • Display with automatic backlight when entering a function
  • Optically isolated USB communication cable included
  • Automatic report generation including the fall of potential plot
  • Rechargeable NiMH batteries from wall charger or vehicle power
  • Rugged dustproof and rainproof field case - IP53 rated in closed position
  • Includes DataView software for set up, data storage, real-time display, analysis, report generation and system configuration


Model Description: 

Model 6472 - Cat. #2135.51: Includes carrying bag, 110/240V power adapter with US power cord, optical USB cable, rechargeable NiMH battery pack, and a USB stick with DataView® software, ground tester workbook and user manual.

Model 6472 (300 ft Kit) - Cat. #2135.53: Includes meter, two carrying bags, two 300 ft color-coded leads on spools (red/blue), two 100 ft color-coded leads (hand-tied, green/black), two 5 ft color-coded leads (red/blue), 110/240V power adapter with US power cord, optical USB cable, four T-shaped auxiliary ground electrodes, set of five spaded lugs, one 100 ft tape measure, rechargeable NiMH battery pack, and a USB stick with DataView® software, ground tester workbook and user manual.

Model 6472 (500 ft Kit) - Cat. #2135.54: Includes meter, two carrying bags, two 500 ft color-coded leads on spools (red/blue), two 100 ft color-coded leads (hand-tied, green/black), one 30 ft lead (green), two 5 ft color-coded leads (red/blue), 110/240V power adapter with US power cord, optical USB cable, four T-shaped auxiliary ground electrodes, set of five spaded lugs, one 100 ft tape measure, rechargeable NiMH battery pack, and a USB stick with DataView® software, ground tester workbook and user manual.


4-Point Earth Resistance Measurement
Range (Auto-Ranging) 0.011Ω to 99.99kΩ
Resolution 0.001 to 10Ω
Accuracy ±(2% Reading +1ct)
Test Voltage 16 or 32V; 41 to 5078Hz
Test Current Up to 250mA
Selective 4-Pole (with optional probes MN82 or SR182)
Same characteristics as with 4-point earth resistance measurement
3-Point Earth Resistance Measurement
Range (Auto-Ranging) 0.09Ω to 99.9kΩ
Resolution 0.01 to 100Ω
Accuracy ±(2% Reading +1ct)
Test Voltage 16 or 32V; 41 to 5078Hz 
Test Current Up to 250mA
Soil Resistivity 4-Point Measurement
Test method Wenner or Schlumberger selectable with automatic calculation
Range (Auto-Ranging) 0.01 to 99.9kΩ; ρ max: 999kΩm
Resolution 0.01 to 100Ω
Accuracy (Typical) ±(2% Reading +1ct)
Test Voltage 16 or 32V; 41 to 128Hz selectable
Earth/Ground Potential Measurement V Pot
Range (Auto-Ranging) 0.01mV to 65.00V
Resolution 0.01 to 10mV
Accuracy (Typical) ±(5% Reading +1ct)
Test Voltage 16 or 32V; 41 to 5078Hz
2 Clamp Ground Measurement (with optional probes MN82 or SR182)
Range (Auto-Ranging) 0.1 to 500Ω
Resolution 0.01 to 1Ω
Measurement Frequency Auto: 1611Hz; Manual: 128Hz-1367Hz-1611Hz-1758Hz
DC Resistance Measurement (Bond Testing)
2-Pole (with lead resistance compensation) or 4-Pole (Kelvin sensing)
Range (Auto-Ranging) 2-pole: 0.12Ω to 99.9kΩ
4-pole: 0.020Ω to 99.99kΩ
Resolution 2 -pole: 0.01 to 100Ω
4-pole: 0.001 to 10Ω
Accuracy (Typical) ±(2% Reading +2ct)
Test Voltage 16V DC; (+, - or auto polarity)
Test Current Up to 250mA
Current Measurement (with optional probes MN82 or SR182)
Range 0.01mA to 40A, 16 to 400Hz
Accuracy (Typical) ±(3% Reading +2ct) typical
External Voltage Measurement
Range 0.1 to 65V AC/DC – DC, 15 to 440Hz
Accuracy ±(2% Reading +1ct)
General Features
Pylon Ground Testing Available by connecting AEMC Model 6474 and a set of GroundFlex sensors
Memory 512 measurements (64KB)
Communication USB 2.0 optically isolated, DataView software included
Power Source 9.6V rechargeable battery pack with external 110/220V charger
Battery Life 1500 tests typical in automatic mode
Dimensions 10.7 x 9.80 x 5.12” (272 x 248 x 130mm)
Weight 7lbs. (3.2kg) with battery
Case UL V0 Polypropylene
Operating Temperature 32° to +113°F (0° to +45°C)
Storage Temperature -40° to 158°F (-40° to +70°C)
Relative Humidity Up to 90%
Ingress Protection (IP) IP 53 with cover closed
EMC EN 61326-1
Safety Compliance IEC 61010-1, EN 61557, 50V CAT IV, Pollution Degree 2