MULTI-FUNCTION GROUND
Now measure ground
resistance, soil resistivity
RESISTANCE SOIL
and bonding resistance
with one instrument!
RESISTIVITY TESTER
Model 6470-B
► 2- and 4-Wire Bond Resistance/Continuity Measurement (DC Resistance) with automatic polarity reversal
► 3-Pole (3-Point) Fall-of-Potential measurement with manual or automatic frequency selection
► 4-Pole (4-Point) Fall-of-Potential measurement for very low resistance measurements with manual or
automatic frequency selection and automatic lead compensation
► 4-Pole (4-Point) Soil Resistivity measurement with automatic calculation of Rho (r) and user selection of
the Wenner or Schlumberger test method
► 3-Pole (3-Point) Earth Coupling measurement
► Manual and automatic frequency scan from 40 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
► Automatic report generation
► Rechargeable NiMH batteries from wall charger or vehicle power
► Rugged dustproof and rainproof field case – IP54 rated in closed positione
► Grounding standards IEC 61557 parts 4 and 5 compliant
► Includes DataView
and system configuration
®
software for data storage, real-time display, analysis, report generation
®
software supplied
Model 6470-B quickly checks ground rod resistance with its Connect - Press - Read approach
The Digital Ground Resistance Tester Model 6470-B is a portable
measurement instrument designed to measure Ground Resistance, Soil
Resistivity (two methods – Wenner and Schlumberger), Bonding Resistance
(DC Resistance 2-Wire and 4-Wire Kelvin sensing) and Earth Coupling
resistance. This direct reading tester measures from 0.01 to 99.99kΩ and is
auto-ranging, automatically seeking out the optimum measurement range 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 large LCD is easy-to-read and indicates ground electrode resistance,
test voltage, current and frequency as well as individual electrode resistance,
battery status and more.
The Model 6470-B 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 Model 6470-B
can withstand 250VAC.
Additional features of the Model 6470-B 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 40
to 513Hz; user selectable 3-Pole (3-Point) Fall of Potential or 4-Pole (4-Point)
Soil Resistivity test methods and user selectable 2-Wire or 4-Wire Bond
Resistance test method.
The Model 6470-B is powered by 9.6V, 3.5 Ah NiMH rechargeable batteries.
An external recharger powered from 120/230V 50/60Hz is included and
provides for testing while recharging. The Model 6470-B can also be vehicle
powered from an optional 12V battery adapter.
The Ground Resistance Tester Model 6470-B 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 normally affect accuracy.
Features
► 2- and 4-Wire Bond Resistance/Continuity
Measurement (DC Resistance) with automatic
polarity reversal
► 3-Pole (3-Point) Fall-of-Potential measurement
with manual or automatic frequency selection
► 4-Pole (4-Point) Fall-of-Potential measurement
for very low resistance measurements with
manual and automatic frequency selection and
automatic lead compensation
► 4-Pole (4-Point) Soil Resistivity measurement
with automatic calculation of Rho (r) and user
selection of the Wenner or Schlumberger test
method
► 3-Pole (3-Point) Earth Coupling measurement
► Manual and automatic frequency scan from
40 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
supplied
► Automatic report generation
► 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
applications
► 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.
2
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Technical Assistance (800) 343-1391
speciFications
MODEL 6470-B
ELECTRICAL
3-Point Measurement
Range (Auto-Ranging) 0.01Ω to 99.99kΩ
Resolution 0.01Ω to 100Ω
Test Voltage Nominal 16 or 32VRMS user selectable
Resistance Measurement Frequency 41 to 513Hz user selectable or automatic selection
Test Current Up to 250mA
Accuracy ±2% of Reading + 1ct
Earth Coupling Measurement Yes
Soil Resistivity 4-Point Measurement
Test Method Wenner or Schlumberger selectable with automatic calculation of test results in Ω-meters, Ω-cm or Ω-feet
Range (Auto-Ranging) 0.01 to 99.99kΩ
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 65.0V — DC to 450Hz
Accuracy 2% of Reading + 3cts
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
Accuracy ±2% of Reading + 2cts
Test Voltage 16V
Test Current Up to 250mA max
Data Storage
Memory Capacity 512 test results
Communication Optically isolated USB
Automatic Report Generation Yes — tabular listings and Fall-of-Potential plots
Power Source 9.6V rechargeable battery pack
Recharging Source 110/220 50/60Hz external charger with 18V
MECHANICAL
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
Dimensions 10.7 x 9.76 x 5.12" (272 x 248 x 130mm)
Weight 7.5 lbs (3.5kg)
Case Polypropylene
Index of Protection IP53 with cover closed
DISPLAY
Display Type Custom 256 segment multi-line LCD
Backlight Blue electroluminescent
COMMUNICATION
Software
ENVIRONMENTAL
Operating Temperature 14° to 122 °F (-10° to 55°C)
Storage Temperature -40° to 158°F (-40° to 70°C)
SAFETY
Safety Rating EN 61010-1 50V Cat IV, Pollution Degree 2
Double Insulation Yes
CE Mark Yes
DataView® graphing, analysis and reporting software
d c (+, — or auto polarity)
d c , 1.9A output or 12 Vd c vehicle power
Technical Assistance (800) 343-1391 www.aemc.com 3
Functional Displays
4-Point Bond Test
The 4-Point (Kelvin sensing) Bond test
shows lead connections, bond resistance
test results, test voltage and current.
Frequency Selection
3-Point Fall-of-Potential Test
The 3-Point Fall-of-Potential test displays
test lead connection, grounding rod resistance
and test electrode resistances. Test voltage,
current or frequency can also be displayed
with a button press.
Data Storage
The Frequency selection screen displays
selected frequency and voltage for the test
as well as lead connection.
Schlumberger Test
The Schlumberger test displays test lead
connection, soil resistivity test results (r)
and electrode spacing.
4-Point Fall-of-Potential Test
Displays test results stored at a specific
memory location as well as the test function.
Wenner Test
The Wenner test displays test lead
connection, soil resistivity test results (r),
electrode spacing and resistance.
4
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The 4-Point Fall-of-Potential test provides
a 10 times more accurate test result for
very low resistance measurements
Technical Assistance (800) 343-1391
Fall-of-Potential Plot
100
90
80
70
60
50
40
30
20
10
0
0102030405060708090 100
Test Conditions
Temp: ___________ Soil: Moist Dry
Soil Ty pe
Loam Sand & Gravel Shale Clay Limestone
Sandstone Granite Slate Other _____________
Name of Operator ____ _________________ ___________ ____________ ___________
Model _ ___________
Location_ __________________ ________________ Date _________________ ______
Serial # ____________
Ground System Type: Single Rod
Rod Dep th _ _________________ ____ ft
Multiple Rods
(Grid)
Longest Diagonal Dimensi on ________ ft
Z Elect rode Distance ______________ __________________ _________________ __ ft
Voltage
Electrode (Y)
distance
from Ground
Rod under
Test (X)
Measured
Resistance
FEET OHMS
Resistance (Ω)
%
90
80
72
70
62
60
52
50
40
30
20
10
0
Y Electrode Distance in % from the Grounding Electrode to the Z Electrode
180 49.3
160 34.2
144 22.1
140 22.1
124 21.8
120 21.8
104 21.6
100 21.6
80 20.4
60 16.2
40 12.8
20 9.1
soFtware
Data Analysis and Reporting Software
Configure all functions of
the Model 6470-B
► 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 Model 6470-B
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
►Free updates are available
through our website
www.aemc.com
DataView is included with
the Model 6470-B.
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 Model 6470-B 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.
Minimum System Requirements:
► Windows 2000/XP/Vista
►128MB of RAM for Windows 2000
(256MB recommended)
256MB of RAM for Windows XP
512MB of RAM for Windows Vista
►80MB of hard disk space
(200MB recommended)
►CD-ROM drive
Windows is a registered trademark of Microsoft Corporation
in the United States and/or other countries.
®
operating system
®
Typical report showing Fall-of-Potential plot using DataView® software.
Technical Assistance (800) 343-1391 www.aemc.com 5
DataView® Functional Displays
4-Point Fall-of-Potential test setup screen — operator can
select test voltage, manually select the test frequency or have
the instrument automatically select the best test frequency.
Distance for Y electrode can also be entered manually and
a Fall-of-Potential plot generated. Lead Compensation is
automatically provided in this test mode.
3-Point Fall-of-Potential test setup screen — operator can
select test voltage, manually select the test frequency or have
the instrument automatically select the best test frequency.
Distance for Y electrode can also be entered manually and a
Fall-of-Potential plot generated.
Bond test setup screen — operator can choose two or four
wire test method.
6
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Soil resistivity test setup screen — operator can select either
the Wenner or Schlumberger test method, select test voltage and
frequency and program the spacing between electrodes in either
feet or meters.
Technical Assistance (800) 343-1391
construction
DC power
input
Z Electrode
terminal
Y Electrode
terminal
Xv Electrode
terminal
X Electrode
terminal
Large, electroluminescent backlit
liquid crystal display
USB
communications port
Rotary
function
selection
switch
Start / Stop
test button
Model 6470-B includes meter, NiMH battery pack, optically
isolated USB cable, DataView® software, external battery
charger, AC power cord and user manual.
Catalog #2135.01
Six program / function buttons
Multi-Function Ground Resistance Tester Model 6470-B Kit
(500 ft kit shown) includes meter, NiMH batteries, optically isolated USB
cable, DataView® software, external battery charger, AC power cord, one
30 ft green wire, one each 500 ft red and blue wire, one each 100 ft black
and green wire, set of five spade lugs, four 14.5" auxiliary electrodes, tape
measure (100 ft), carrying case and user manual.
Catalog #2135.04
Technical Assistance (800) 343-1391 www.aemc.com 7
accessories
Test Kit for 3-Point testing includes two 150 ft color-coded leads on
spools (red and blue), one 30 ft lead (green), two 14.5" T-shaped
auxiliary ground electrodes, one set of five spade lugs, 100 ft tape
Test Kit for 4-Point testing includes two 500 ft color-coded leads on
spools (red and blue), two 100 ft color-coded leads (green and black),
one 30 ft lead (green), four 14.5" T-shaped auxiliary ground electrodes,
one set of five spade lugs, 100 ft tape measurer and carrying bag.
measurer and carrying bag.
Catalog #2135.35
Catalog #2135.37
Test Kit for 4-Point testing includes two 300 ft color-coded
leads on spools (red and blue), two 100 ft color-coded leads (green
and black), four 14.5" T-shaped auxiliary ground electrodes, one set
of five spade lugs, 100 ft tape measurer and carrying bag.
Test Kit for 3-Point testing (supplemental for 4-Point testing) includes
two 100 ft color-coded leads, one 30 ft lead (green), two 14.5"
auxiliary electrodes and soft carrying bag for use with kit number
2135.35 when 4-Point soil resistance testing is necessary.
Catalog #2135.36
Catalog #2135.38
ORDERING INFORMATION CATALOG NO.
Ground Resistance Tester Model 6470-B (3-Point, 4-Point, Bond Test, Digital, DataView
Includes meter, rechargeable NiMH batteries, optical USB cable, power adapter 110/240V with power cord 115V US,
DataView® software, ground tester workbook CD, carrying bag for meter and user manual
Ground Resistance Tester Model 6470-B Kit (150 ft) .............................................................................. Cat. #2135.02
Includes meter, rechargeable NiMH batteries, optical USB cable, power adapter 110/240V with power cord 115V US,
two 150 ft color-coded leads on spools (red/blue), one 30 ft lead (green), two T-shaped auxiliary ground electrodes, set of five
spaded lugs, one 100 ft AEMC® tape measure, DataView® software, ground tester workbook CD, carrying bag for meter,
carrying bag for kit and user manual
Ground Resistance Tester Model 6470-B Kit (300 ft) .............................................................................. Cat. #2135.03
Includes 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, one 100 ft AEMC® tape measure, DataView® software, ground tester
workbook CD, carrying bag for meter, carrying bag for kit and user manual
Ground Resistance Tester Model 6470-B Kit (500 ft) .............................................................................. Cat. #2135.04
Includes meter, rechargeable NiMH batteries, optical USB cable, power adapter 110/240V with power cord 115V US,
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),
four T-shaped auxiliary ground electrodes, set of five spaded lugs, one 100 ft AEMC® tape measure, DataView® software,
ground tester workbook CD, carrying bag for meter, carrying bag for kit and user manual
Accessories (Optional)
2 5Ω Calibration Checker ....................................................................................................... Cat. #2130.59
Tape Measure (100 ft) ......................................................................................................... Cat. #2130.60
Test Kit for 3-Point testing (includes two 150 ft color-coded leads on spools (red/blue), one 30 ft lead (green),
two 14.5" T-shaped auxiliary ground electrodes, set of five spade lugs, 100 ft tape measure and soft carrying bag) ............................. Cat. #2135.35
Test Kit for 4-Point testing (includes two 300 ft color-coded leads on spools (red/blue), two 100 ft color-coded leads
(hand tied green/black), four 14.5" T-shaped auxiliary ground electrodes, set of five spade lugs, 100 ft tape measure
and soft carrying bag) .......................................................................................................... Cat. #2135.36
Test Kit for 4-Point testing (includes 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), four 14.5" T-shaped auxiliary ground electrodes, set of five spade lugs, 100 ft tape measure and soft carrying bag) .......... Cat. #2135.37
Ground Test Kit for 3-Point testing (Supplemental for 4-Point testing — includes two 100 ft color-coded leads,
one 30 ft lead (green), two 14.5" T-shaped auxiliary ground electrodes and soft carrying bag) ............................................... Cat. #2135.38
®
software) ........................................Cat. #2135.01
Call the AEMC® Instruments Technical Assistance Hotline for immediate consultation with an applications engineer: (800) 343-1391
Export Department: (978) 526-7667 • Fax (978) 526-7605 • E-mail: export@aemc.com
Chauvin Arnoux®, Inc. d.b.a AEMC® Instruments • 200 Foxborough Blvd. • Foxborough, MA 02035 USA • (800) 343-1391 • (508) 698-2115 • Fax (508) 698-2118
Visit our website at www.aemc.com 950.BR-6470-B_1108Rev01 Printed in the USA
Chauvin Arnoux One Source
™
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