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Ground Resistance Tester Model 6471

The Digital Ground Resistance Tester Model 6471 is a portable measurement instrument designed to measure Ground Resistance with 2 clamps (sold separately), 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 Model 6471 measures from 0.01 to 99.99kΩ and is auto-ranging, automatically seeking out the optimum measurement range, test frequency and test current.

NOTE: Our complete catalog is not available for direct online purchase, refer to the Status Column for purchasing options. Items that do not have an Add to Cart button must be purchased from an Authorized Distributor.
Model Cat. # Description List Price Quantity/Status Distributor Stock Check
6471 (w/o probes) 2135.48 Ground Resistance Tester Model 6471 (no probes) $2,340.00 In stock at factory. Find a Distributor
6471 (with probes) 2135.49 Ground Resistance Tester Model 6471 (with probes) $2,899.00 Out of Stock Consult Factory for Availability
6471 Kit-300ft (with probes) 2135.50 Ground Resistance Tester Model 6471 Kit-300ft (with probes) $3,419.00 Out of Stock Consult Factory for Availability
6471 Kit-300ft (w/o probes) 2135.60 Ground Resistance Tester Model 6471 Kit-300ft (no probes) $2,860.00 Out of Stock Consult Factory for Availability
6471 Kit-500ft (w/o probes) 2135.61 Ground Resistance Tester Model 6471 Kit-500ft (no probes) $3,010.00 Out of Stock Consult Factory for Availability
Model6471 (w/o probes)
Cat. #2135.48
DescriptionGround Resistance Tester Model 6471 (no probes)
List Price$2,340.00
In stock at factory. Find a Distributor
Model6471 (with probes)
Cat. #2135.49
DescriptionGround Resistance Tester Model 6471 (with probes)
List Price$2,899.00
Out of Stock Consult Factory for Availability
Model6471 Kit-300ft (with probes)
Cat. #2135.50
DescriptionGround Resistance Tester Model 6471 Kit-300ft (with probes)
List Price$3,419.00
Out of Stock Consult Factory for Availability
Model6471 Kit-300ft (w/o probes)
Cat. #2135.60
DescriptionGround Resistance Tester Model 6471 Kit-300ft (no probes)
List Price$2,860.00
Out of Stock Consult Factory for Availability
Model6471 Kit-500ft (w/o probes)
Cat. #2135.61
DescriptionGround Resistance Tester Model 6471 Kit-500ft (no probes)
List Price$3,010.00
Out of Stock Consult Factory for Availability

Model 6471 (no probes) - Cat. #2135.48: 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 6471 (with probes) - Cat. #2135.49: Includes carrying bag, set of two SR182 current probes, 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 6471 (300 ft Kit, with probes) - Cat. #2135.50: 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), set of two SR182 current probes, 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, and a USB stick with DataView® software, ground tester work-book and user manual.

Model 6471 (300 ft Kit, no probes) - Cat. #2135.60: Includes meter, two carrying bags, two 300 ft color-coded leads on spools (red/blue), two 100 ft color-coded leads (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, and a USB stick with DataView® software, ground tester work-book and user manual.

Model 6471 (500 ft Kit) - Cat. #2135.61: 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), 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, and a USB stick with DataView® software, ground tester work-book and user manual.

Print
4-Point Earth Resistance Measurement
Range (Auto-Ranging) 0.01Ω to 99.99kΩ
Resolution 0.001 to 10Ω
Accuracy ±(2% Reading +1ct)
Test Voltage 16 or 32V; 41 to 513Hz
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 513Hz 
Test Current Up to 250mA
Soil Resistivity 4-Point Measurement
Test method Wenner or Schlumberger selectable with automatic calculation
Range (Auto-Ranging) 0.01Ω 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
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
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
Model Cat. # Description List Price Quantity/Status Distributor Stock Check
2117.76 Bag - Small Flat Black Canvas Bag for Ground/Accessories
Dimensions: 17 x 6.5 x 2.75"
$39.00
2119.82 Multi-purpose Large Canvas Bag
Dimensions: 22 x 10.5 x 12"
$121.00
2130.60 100 ft Tape Measure for use with Ground Resistance Tester Kits $36.00
2135.35 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) $490.00
2135.36 Ground Resistance Test Kit for 4-Point Testing - 300ft Test Kit for 4-Point Testing, Kit (Carrying Bag, [2] 300 ft Color-coded Leads on Spools (Red/Blue), [2] 100 ft Color-coded Leads (hand tied-Green/Black), [2] 5 ft Color-coded Leads (Red/Blue), [4] 14.5" T-shaped Auxiliary Ground Electrodes, [1] Set of 5, Spaded Lugs and [1] 100 ft AEMC® Tape Measure) $590.00
2135.37 Ground Resistance Test Kit for 4-Point Testing - 500ft Test Kit for 4-Point Testing, Kit (Carrying Bag, [2] 500 ft Color-coded Leads on Spools (Red/Blue), [2] 100 ft Color-coded Leads (hand tied-Green/Black), [1] 30 ft Lead (Green), [2] 5 ft Color-coded Leads (Red/Blue), [4] 14.5" T-shaped Auxiliary Ground Electrodes, [1] Set of 5, Spaded Lugs and [1] 100 ft AEMC® Tape Measure) $740.00
2135.38 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. $255.00
2135.39 Set of 2, 14.5" T-shaped Ground Rods for use with all Ground Testers (except clamp-ons) $33.00
2135.40 Bag - Replacement Carrying Bag for Models 6470/6470-B, 6471 & 6472 $60.75
2135.41 Optical USB Cable – Replacement for Models 6240, 6470/6470-B, 6471, 6472, 8220, 8230 & MTX 328x Series $53.50
MN82 2135.71 AC Current Probe Model MN82 $299.00
SR182 2135.72 AC Current Probe Model SR182 $369.00
2135.81 Fuse - Set of 5, 0.63A, 250V (5 x 10mm) for Models 6470-B, 6471 and 6472 $9.95
2135.85 Set of 2 reel caddies for use with ground kit spools $85.00
2960.21 Replacement 9.6V Rechargeable Battery Pack for Models 1060, 5050, 5060, 5070, 6505, 4630, 6470/6470-B, 6471 & 6472 $157.00
5000.01 Green replacement wire (30 ft, hand-tied) for ground resistance tester kits. $29.95
5000.02 Red replacement wire (500 ft) on reel for ground resistance tester kits (Models 4620, 4630, 6470-B, 6471 & 6472) $199.00 Out of Stock Consult Factory for Availability
5000.03 Red replacement wire (300 ft) on reel for ground resistance tester kits (Models 4620, 4630, 6470-B, 6471 & 6472) $169.00
5000.04 Red replacement wire (150 ft) on reel for ground resistance tester kits (Models 6470-B, 6471 and 6472 series) $139.00
5000.05 Blue replacement wire (500 ft) on reel for ground resistance tester kits (Models 4620, 4630, 6470-B, 6471 & 6472) $199.00
5000.06 Blue replacement wire (300 ft) on reel for ground resistance tester kits (Models 4620, 4630, 6470-B, 6471 & 6472) $169.00
5000.07 Blue replacement wire (150 ft) on reel for ground resistance tester kits (Models 4620, 4630, 6470-B, 6471 & 6472) $139.00
5000.08 Green replacement wire (100 ft, hand-tied) for ground resistance tester kits. $99.00
5000.10 Set of 5, replacement screw-on spaded lugs for ground resistance tester kits. $11.95
5000.13 Power Adapter 110/240V and Power Cord 115V US for Ground Testers Model 6470, 6471 and 6472 $64.00
5000.14 Power Cord 115V for Micro-ohmmeters, Megohmmeters, Power Instruments, Oscilloscopes & Ground Testers $8.00
5000.34 Lead - Set of 2, Color-coded (Red/Blue) Leads for use with AEMC Ground Tester Reels Incorporating Banana Jack Input $20.50
5000.57 Power Adapter, 24VDC Charger (Vehicle Use) for Models 6470-B, 6471 and 6472 $129.00
5000.74 Ground Resistance Tester Checker
Calibration Checker - 5/25Ω for use with Models 6470/6470-B, 6471, and 6472
Instruction Sheet
$149.00
Model
Cat. #2117.76
DescriptionBag - Small Flat Black Canvas Bag for Ground/Accessories
Dimensions: 17 x 6.5 x 2.75"
List Price$39.00
Model
Cat. #2119.82
DescriptionMulti-purpose Large Canvas Bag
Dimensions: 22 x 10.5 x 12"
List Price$121.00
Model
Cat. #2130.60
Description100 ft Tape Measure for use with Ground Resistance Tester Kits
List Price$36.00
Model
Cat. #2135.35
DescriptionGround 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)
List Price$490.00
Model
Cat. #2135.36
DescriptionGround Resistance Test Kit for 4-Point Testing - 300ft Test Kit for 4-Point Testing, Kit (Carrying Bag, [2] 300 ft Color-coded Leads on Spools (Red/Blue), [2] 100 ft Color-coded Leads (hand tied-Green/Black), [2] 5 ft Color-coded Leads (Red/Blue), [4] 14.5" T-shaped Auxiliary Ground Electrodes, [1] Set of 5, Spaded Lugs and [1] 100 ft AEMC® Tape Measure)
List Price$590.00
Model
Cat. #2135.37
DescriptionGround Resistance Test Kit for 4-Point Testing - 500ft Test Kit for 4-Point Testing, Kit (Carrying Bag, [2] 500 ft Color-coded Leads on Spools (Red/Blue), [2] 100 ft Color-coded Leads (hand tied-Green/Black), [1] 30 ft Lead (Green), [2] 5 ft Color-coded Leads (Red/Blue), [4] 14.5" T-shaped Auxiliary Ground Electrodes, [1] Set of 5, Spaded Lugs and [1] 100 ft AEMC® Tape Measure)
List Price$740.00
Model
Cat. #2135.38
DescriptionTest 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.
List Price$255.00
Model
Cat. #2135.39
DescriptionSet of 2, 14.5" T-shaped Ground Rods for use with all Ground Testers (except clamp-ons)
List Price$33.00
Model
Cat. #2135.40
DescriptionBag - Replacement Carrying Bag for Models 6470/6470-B, 6471 & 6472
List Price$60.75
Model
Cat. #2135.41
DescriptionOptical USB Cable – Replacement for Models 6240, 6470/6470-B, 6471, 6472, 8220, 8230 & MTX 328x Series
List Price$53.50
Model MN82
Cat. #2135.71
DescriptionAC Current Probe Model MN82
List Price$299.00
Model SR182
Cat. #2135.72
DescriptionAC Current Probe Model SR182
List Price$369.00
Model
Cat. #2135.81
DescriptionFuse - Set of 5, 0.63A, 250V (5 x 10mm) for Models 6470-B, 6471 and 6472
List Price$9.95
Model
Cat. #2135.85
DescriptionSet of 2 reel caddies for use with ground kit spools
List Price$85.00
Model
Cat. #2960.21
DescriptionReplacement 9.6V Rechargeable Battery Pack for Models 1060, 5050, 5060, 5070, 6505, 4630, 6470/6470-B, 6471 & 6472
List Price$157.00
Model
Cat. #5000.01
DescriptionGreen replacement wire (30 ft, hand-tied) for ground resistance tester kits.
List Price$29.95
Model
Cat. #5000.02
DescriptionRed replacement wire (500 ft) on reel for ground resistance tester kits (Models 4620, 4630, 6470-B, 6471 & 6472)
List Price$199.00
Out of Stock Consult Factory for Availability
Model
Cat. #5000.03
DescriptionRed replacement wire (300 ft) on reel for ground resistance tester kits (Models 4620, 4630, 6470-B, 6471 & 6472)
List Price$169.00
Model
Cat. #5000.04
DescriptionRed replacement wire (150 ft) on reel for ground resistance tester kits (Models 6470-B, 6471 and 6472 series)
List Price$139.00
Model
Cat. #5000.05
DescriptionBlue replacement wire (500 ft) on reel for ground resistance tester kits (Models 4620, 4630, 6470-B, 6471 & 6472)
List Price$199.00
Model
Cat. #5000.06
DescriptionBlue replacement wire (300 ft) on reel for ground resistance tester kits (Models 4620, 4630, 6470-B, 6471 & 6472)
List Price$169.00
Model
Cat. #5000.07
DescriptionBlue replacement wire (150 ft) on reel for ground resistance tester kits (Models 4620, 4630, 6470-B, 6471 & 6472)
List Price$139.00
Model
Cat. #5000.08
DescriptionGreen replacement wire (100 ft, hand-tied) for ground resistance tester kits.
List Price$99.00
Model
Cat. #5000.10
DescriptionSet of 5, replacement screw-on spaded lugs for ground resistance tester kits.
List Price$11.95
Model
Cat. #5000.13
DescriptionPower Adapter 110/240V and Power Cord 115V US for Ground Testers Model 6470, 6471 and 6472
List Price$64.00
Model
Cat. #5000.14
DescriptionPower Cord 115V for Micro-ohmmeters, Megohmmeters, Power Instruments, Oscilloscopes & Ground Testers
List Price$8.00
Model
Cat. #5000.34
DescriptionLead - Set of 2, Color-coded (Red/Blue) Leads for use with AEMC Ground Tester Reels Incorporating Banana Jack Input
List Price$20.50
Model
Cat. #5000.57
DescriptionPower Adapter, 24VDC Charger (Vehicle Use) for Models 6470-B, 6471 and 6472
List Price$129.00
Model
Cat. #5000.74
DescriptionGround Resistance Tester Checker
Calibration Checker - 5/25Ω for use with Models 6470/6470-B, 6471, and 6472
Instruction Sheet
List Price$149.00

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