AEMC 6470 User Manual
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AEMC 6470 User Manual

Digital ground resistance and soil resistivity tester
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6470
DIGITAL GROUND
RESISTANCE AND SOIL
RESISTIVITY TESTER
ShopAEMC
www.
.ca
1.877.766.5412
Shop for AEMC products online at:
E N G L I S H
User Manual

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Summary of Contents for AEMC 6470

  • Page 1 6470 DIGITAL GROUND  RESISTANCE AND SOIL RESISTIVITY TESTER ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at: E N G L I S H User Manual...
  • Page 2 Catalog #: ______________________________ Model #: 6470 Please fill in the appropriate date as indicated: Date Received: _________________________________ _______________________ Date Calibration Due: Chauvin Arnoux , Inc. ® d.b.a AEMC Instruments ® www.aemc.com ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at:...
  • Page 3 Please refer to § 6 for correct replacement of the battery. Do not dispose of the battery pack with other solid waste. Used batteries must be entrusted to a qualified recycling company or to a company specialized in processing hazardous materials. ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at:...

  • Page 4: Table Of Contents

    Safety ....................22 4. OPERATION .................. 23 Instrument Configuration (SET-UP mode) .........23 Operation Mode .................24 4.2.1 Voltage Check ...............25 ShopAEMC www. 1.877.766.5412 General Operating Rules ..............26 Shop for AEMC products online at: Bond Resistance/Continuity Measurement (mW position) ....28 4.4.1 Configuration Settings............28...
  • Page 5 SOFTWARE ..............55 ® Introduction ..................55 Features .....................56 Installing DataView ................56 ® Installing the USB Drivers for Each Instrument ........60 Connecting the Model 6470 to your Computer ........60 Starting DataView ................61 ® Configuring the Instrument ..............62 5.7.1 Configuration Functions ............63 5.7.2 DC Continuity Test ..............63...

  • Page 6: Introduction

    Check that no terminal is connected and the switch is set to OFF before opening the device. • Troubleshooting and metrological verification procedures must only be performed by qualified, approved personnel, or the factory. ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at: Ground Resistance Tester Model 6470...

  • Page 7: International Electrical Symbols

    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 ShopAEMC ®...

  • Page 8: Kits, Accessories And Replacement Parts

    Test Kit for 3-Pole (3-Point) Testing (150 ft) .........Cat. #2135.35 Includes 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, ®...

  • Page 9: Product Features

    The Model 6470 is Cat IV rated to 50V and is over voltage protected to more than 250V against accidental connection to live circuits. The voltage is also displayed on screen.

  • Page 10: Main Features

    Grounding standards IEC 61557 parts 4 and 5 compliant • Includes DataView software for data storage, real-time display, analysis, re- ® port generation and system configuration ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at: Ground Resistance Tester Model 6470...

  • Page 11: Control Features

    6. Input terminal E (X) - grounding electrode under test 7. Six program / function buttons (see §2.5) 8. Optical interface connector for connection to a computer 9. Range selection switch 10. Start/Stop button ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at: Ground Resistance Tester Model 6470...

  • Page 12: Display

    2.4 Display The Model 6470’s display is a custom 256 segment multi-line backlit LCD. NOTE: External voltages will be displayed only on the small displays (A2 and A3) without the view of the main display (A1). This helps to rapidly recognize that these are measurements of external voltages.
  • Page 13 In AUTO mode, the measurement frequency is automatically adjusted to the best available disturbance voltage rejection. Symbol not used in Model 6470 Indicates the 2-Wire DC resistance; calculates the offset of the cable resistance into the result (5W max for offset value)

  • Page 14: Button Functions

    - Decreases the value of the flashing parameter displayed or selects the next parameter down. Press the button for a longer time to increase the change of value speed at a faster rate. ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at: Ground Resistance Tester Model 6470...

  • Page 15: Change) Button

    Other results can be obtained with the selection of 1, 2, 3 or 4 by using www. 1.877.766.5412 Shop for AEMC products online at: the arrow buttons. To exit, move the main switch or press the MR button. Ground Resistance Tester Model 6470...

  • Page 16: Display / Smooth Button

    During the measurement in MANUAL mode, the Hz button directly /OPTIONS enables the modification of frequency (in 3-Pole and Resistivity Measure- ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at: ments), or the current direction (polarity) in Bond Resistance/Continuity Mea- surement. Ground Resistance Tester Model 6470...
  • Page 17 This function is only available for soil resistivity measurements. It allows the setting of values of distances used for Rho (ρ) calculation. It is accessible in States 1 and 3 only (see § 2.5.6). ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at: Ground Resistance Tester Model 6470...

  • Page 18: Specifications

    Frequency Measurement Measurement Range Resolution Signal Range Accuracy Nominal: 1% of Reading ± 2cts 16 to 450Hz 0.1 to 65V ShopAEMC www. 1.877.766.5412 Field: Shop for AEMC products online at: 1% of Reading ± 2cts Ground Resistance Tester Model 6470...

  • Page 19: Bond Resistance / Continuity Measurement

    Test Frequency: See chart Test Current: ≤250mA Noise Rejection: > 80 dB (16 2/3, 50, 60 and 400Hz) if the measurement ShopAEMC frequency is 20% above or below the disturbance frequency www. 1.877.766.5412 Shop for AEMC products online at: Ground Resistance Tester Model 6470...
  • Page 20 ± ( 10% of Reading + 1ct ) • No disturbance voltage or • Disturbance voltage ≤ 60V peak with (f meas.- f dist.)/f meas. > 0.2 ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at: Ground Resistance Tester Model 6470...

  • Page 21: Soil Resistivity 4-Pole Measurement

    1.00 to 9.99W 10.0 to 99.9W 100W Test Frequency Selection Table: Frequency Table / Hz for 6470 3-Pole (3-Point) 101 110 119 122 128 134 137 146 159 165 171 183 195 201 220 238 244 256 269 275 293 317 330 342 366 391 403 439 476 488 513 3.2.5...
  • Page 22 100 to 999W 10% of Reading ± 2cts at 128Hz 1.00 to 9.99kW 10.0 to 99.9kW 100W Test Frequency Selection Table: Frequency Table / Hz for 6470 4-Pole (4-Point) 101 110 119 122 128 ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at:...

  • Page 23: Data Storage

    Weight: 7.5 lbs (3.4kg) Case Material: ULV0 Polypropylene Terminals: 4mm recessed banana jacks Case Protection: EN 60529 - IP53 (cover closed) Mechanical Shock: Per EN 61557 Drop Test: Per EN 61010-1 Vibration Test: Per EN 61557-1 Dielectric Test: 3kV, 50/60Hz ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at: Ground Resistance Tester Model 6470...

  • Page 24: Environmental

    Storage Temperature: -40° to 158°F (-40° to 70°C); 0 to 90% RH 3.5 Safety EN 61010-1 / EN61326-1 and IEC 61557-1-4-5 50V Cat IV, Pollution Degree 2 *All specifications are subject to change without notice ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at: Ground Resistance Tester Model 6470...

  • Page 25: Operation

    (either directly from the instrument or by using DataView software). ® To configure the Model 6470 parameters directly from the instrument’s display, turn the rotary switch to the SET-UP position: • All the segments on the display are activated for 1 second and then the “PUSH button”...

  • Page 26: Operation Mode

    (Press on the START/STOP button) Measurement • Automatic calculation by setting of distances of the rods Frequency settings have a default value in each function after rotary switch changes. ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at: Ground Resistance Tester Model 6470...

  • Page 27: Voltage Check

    2s. (Note that this test takes a longer time). • If the START button is pressed shortly (<2s), then the functional measurement omits the rod resistance measurement. ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at: Ground Resistance Tester Model 6470...

  • Page 28: General Operating Rules

    FFT analysis of a disturbance voltage searches the best available test ShopAEMC www. 1.877.766.5412 frequency for a stable measurement. This automatic selected frequency is at least Shop for AEMC products online at: ±20% out of the detected disturbance frequency value. If no suitable frequency Ground Resistance Tester Model 6470...

  • Page 29: Shopaemc .Ca 1.877.766.5412

    START/STOP button is pressed, the instrument returns to the initial screen and State 1. The Model 6470 can be operated via the USB interface (complete remote mode) in all measurement functions except the SET-UP position. In the SET-UP position there is no interface communication allowed.

  • Page 30: Bond Resistance/Continuity Measurement (Mw Position)

    Select the measurement mode ( MANUAL or AUTO). • Select the number of wires for the measurement (2- or 4-Wire). MANUAL mode, select the measurement current polarity. • ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at: Ground Resistance Tester Model 6470...

  • Page 31: Lead Compensation Measurement (2-Wire Mode Only)

    NOTE: If the measurement is unstable or if the measurement results are incon- sistent, trigger the measurement again to check that the problem is not a faulty connection. ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at: Ground Resistance Tester Model 6470...
  • Page 32 A1= R --- W +DC or -DC A2= U --- V DC A2= U A2= U --- V DC A3= I --- mA A3= Hz A3= I --- mA ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at: Ground Resistance Tester Model 6470...
  • Page 33 A3= I XXX mA A3= I XXX mA DISPLAY button 2-Wire without compensation: No effect. DISPLAY button 2-Wire with compensation: No effect. DISPLAY button 4-Wire: No effect. ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at: Ground Resistance Tester Model 6470...
  • Page 34 A1= R XXX W ±DC A2= R+ XXX W A2= U A3= R - XXX W A3= Hz (1) Note: example with +DC direction (1) external voltage measurement. ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at: Ground Resistance Tester Model 6470...
  • Page 35 NOTE: In both MANUAL and AUTO mode, if there is a DC disturbance voltage or an AC voltage > 42V eff, the measurement is cancelled. A compensation measurement erases previous measurement results. The START button is always active. ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at: Ground Resistance Tester Model 6470...

  • Page 36: Ground Resistance Measurement - 3-Pole (3-Point)

    “punch” through and provide enough signal strength. The Model 6470 provides two test voltages 16V and 32V associated with a higher test current than other instruments on the market (>200mA max). The test voltage is set to 32V when it leaves the factory and may be lowered to 16V by the user.

  • Page 37: Measuring Ground Resistance

    (e.g. R = 16.60W). NOTE: The actual test time is dependant on the test conditions and longer when ShopAEMC www. 1.877.766.5412 the Model 6470 searches for the optimum test frequency. Shop for AEMC products online at: Ground Resistance Tester Model 6470...

  • Page 38: Auto And Manual Modes

    (blinking number). The CHANGE button ► only modifies the user defined frequencies using the table contained in the instrument. ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at: Ground Resistance Tester Model 6470...
  • Page 39 /OPTIONS frequency is then stable. Pushing the DISPLAY button stores the last frequency value and moves the dis- play indication to the initial state. ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at: Ground Resistance Tester Model 6470...
  • Page 40 Second Push Third Push XXX W AC A1= R A2= U A2= U A2= U A3= Hz (2) A3= F Hz (2) A3= I XXX mA ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at: Ground Resistance Tester Model 6470...

  • Page 41: Earth Coupling Measurement - 3-Pole (3-Point)

    (2) Display shows actual readings of the external voltage and frequency. 4.6 Earth Coupling Measurement - 3-Pole (3-Point) 4.6.1 Measurement Figure 4-5 ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at: Coupling Coefficient: k = (RH + RL - RHL) / 2RH Ground Resistance Tester Model 6470...
  • Page 42 3-Pole (3-Point) earth measurement that will give R = Rb + Rc with: ShopAEMC = second ground earth resistance www. 1.877.766.5412 Shop for AEMC products online at: Rc = coupling resistance between R and R Ground Resistance Tester Model 6470...
  • Page 43 4 automatically and displays R , C1 and C2. Each result can be recalled using the MR button. ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at: Ground Resistance Tester Model 6470...

  • Page 44: Measurement Results

    Second Push (1) --- W AC --- W AC A1= R A1= R A2= U A2= U A2= U A3= 96 Hz A3= Hz A3= 96 Hz ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at: Ground Resistance Tester Model 6470...
  • Page 45 A3= Hz A3= Hz A3= Hz Second Push Third Push XXX W AC A1= R A2= U A2= U XXX V A3= Hz A3= I XXX mA ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at: Ground Resistance Tester Model 6470...
  • Page 46 A2= R a XXX W A2= C1 XXX A2= U A2= C1 XXX A3= R b XXX W A3= C2 XXX A3= F 96 Hz A3= C2 XXX ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at: Ground Resistance Tester Model 6470...

  • Page 47: Soil Resistivity Measurements (Ρ Position)

    It was observed that the resistivity value in the chosen location increases with the depth and the Schlumberger method was seen to have a greater penetration than the Wenner. ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at: Ground Resistance Tester Model 6470...

  • Page 48: Advantages/Disadvantages Of Wenner And Schlumberger

    DC soundings will be limited to simple, will be limited to simple, horizontal; layered horizontal; layered structures structure. Source: DC Resistivity - T. Boyd ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at: Ground Resistance Tester Model 6470...

  • Page 49: Measuring Soil Resistivity - 4-Pole (4-Point)

    EXIT Figure 4-6 Wenner Method: ρ = 2 x Π x d x R S-ES S-ES Schlumberger Method: ρ = (Π x (d /4)/A) x R S-ES S-ES ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at: Ground Resistance Tester Model 6470...
  • Page 50 In this way, the resistivity can be determined as a function of the dis- tance, and therefore of the depth of the measurement location. ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at: Ground Resistance Tester Model 6470...

  • Page 51: Measurement Results

    XXXWm XXXWm XXXWm XXX W XXX W A2=R A2= U XXX V A2=R ShopAEMC S-ES S-ES S-ES www. 1.877.766.5412 Shop for AEMC products online at: A3= d= 1.0 m A3= I A3= d= 1.0 m Ground Resistance Tester Model 6470...
  • Page 52 A2= U A2= R S-ES S-ES A3= Hz A3= Hz A3= d= 1.0 m ShopAEMC (1) distance “A” can be seen instead of RS-ES using the DISTANCE button www. 1.877.766.5412 Shop for AEMC products online at: Ground Resistance Tester Model 6470...

  • Page 53: Distance Button Results

    SELECT moves the blinking digit, the last two digits are accessed together. CHANGE ► moves the value up and down. ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at: Ground Resistance Tester Model 6470...

  • Page 54: Saving Measurements Into Memory

    When storing, the instrument ShopAEMC always takes the last measurement into account, and overwrites previous mea- www. 1.877.766.5412 Shop for AEMC products online at: sured records with the same distance. Ground Resistance Tester Model 6470...

  • Page 55: Recalling Measurements From Memory

    The display will show “ dELete ALL” records. Select either NO or YES with the ► button. NOTE: If YES is selected, all saved measurements will be deleted. ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at: Ground Resistance Tester Model 6470...

  • Page 56: Erasing Selected Measurements

    MR button. Use the ► button to change the blinking NO into YES. • A final push on the MR button erases the selected record. • To exit this mode, press the MEM button. ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at: Ground Resistance Tester Model 6470...

  • Page 57: Dataview ® Software

    The DataView software supplied with the Model 6470 ® provides four main functions: The ability to configure the 6470 from the computer. The ability to initiate a recording test from the computer. The ability to store test results and print out reports of any test.

  • Page 58: Features

    The user must be given full rights as the Administrator before the installation. DataView must be reinstalled for each user in a multi-user system (e.g. ® ShopAEMC Windows 2000, XP and Vista). ® www. 1.877.766.5412 Shop for AEMC products online at: Ground Resistance Tester Model 6470...
  • Page 59 - The MetaViewer utility program allows a user to view and print .dmf or .emf files generated by DataView without having DataView ® ® software installed. • Software Updates - Links to the AEMC Software Update website to check ® for new software version releases. ShopAEMC www. 1.877.766.5412 Firmware Upgrades - Links to the AEMC •...
  • Page 60 USB port, a warning box will appear, similar to Figure 5-3. Click OK. ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at: If the USB drivers are not needed, Setup will continue at step 12. Ground Resistance Tester Model 6470...
  • Page 61 Reader), or you may close the window. ® Shortcuts for DataView and each instrument selected during the installation pro- ® cess have been added to your desktop. ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at: Ground Resistance Tester Model 6470...

  • Page 62: Installing The Usb Drivers For Each Instrument

    5.5 Connecting the Model 6470 to your Computer The Model 6470 is supplied with an optically isolated USB interface cable required for connecting the instrument to the computer. This cable (Cat. #2135.41) is equipped with a USB type A on one end, and an optical connector on the other end.

  • Page 63: Starting Dataview

    Click the Configure Instrument button and the Connection window will appear (Fig. 5-6). Figure 5-5 • Configure Instrument: Opens the Configure Instrument dialog box that allows you to modify the configuration of the 6470. • Real-time Display: Opens the control panel providing real-time display of measurement data. •...

  • Page 64: Configuring The Instrument

    Communication dialog box will appear allowing you to select the Communication Rate (baud rate) and Port for communicating with the 6470. Figure 5-6 2. Make sure that the communication port displayed in the dialog box match- es the port that the serial cable is plugged into.

  • Page 65: Configuration Functions

    For very low resistance measurement, a lead compensation value (see § 4.4.2) may be entered. Input noise status at the input of the meter is always displayed. ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at: Ground Resistance Tester Model 6470...

  • Page 66: 3-Pole Ground Resistance Test

    The distance “d” (for Wenner test method) or “d” and “a” (for Schlumberger test ShopAEMC method), between the test electrodes, needs to be entered for resistivity calcula- www. 1.877.766.5412 Shop for AEMC products online at: tion to read out directly in Rho. Ground Resistance Tester Model 6470...

  • Page 67: Downloading Data To Database

    Data from the instrument”, then click on a line that describes the ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at: recorded data. It will bring up a window with a graph of the data. Ground Resistance Tester Model 6470...

  • Page 68: Recordings

    5.8.1 Recordings Figure 5-10a ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at: Figure 5-10b Ground Resistance Tester Model 6470...

  • Page 69: Session Properties

    To open the database just downloaded, click the “Yes” button. A dialog box labeled Create View from Template will open. In the Groups window of this dialog box, click on “6470” and in the Templates window click on “6470 Summary Report”.

  • Page 70: Maintenance

    The instrument can measure when charging from the AC Line Voltage, as the adapter provides a double insulation for 240V Cat II. NOTE: Do not use the Model 6470 when charging on a DC source. This can result in an incorrect measurement under certain conditions.
  • Page 71 The charge is made first with a low current before going to the quick charge. The charging mode (Fast or Slow) is determined by the Model 6470 and based upon the remaining battery charge and the ambient temperature. When the battery is completely charged, the charging unit assures a trickle charge.

  • Page 72: Appendix A: Error Listings

    Measurement stop: high voltage on inputs Recoverable Measurement stop: voltage overrange Recoverable Measurement stop: current overrange *Deleting the user memory (stored data records) in Set-up should help. ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at: Ground Resistance Tester Model 6470...

  • Page 73: Repair And Calibration

    , Inc. d.b.a. AEMC Instruments ® ® 200 Foxborough Boulevard Foxborough, MA 02035 USA Phone: (800) 343-1391 (508) 698-2115 Fax: (508) 698-2118 E-mail: techsupport@aemc.com www.aemc.com NOTE: Do not ship Instruments to our Foxborough, MA address. ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at: Ground Resistance Tester Model 6470...

  • Page 74: Limited Warranty

    Limited Warranty The Ground Tester Model 6470 is warranted to the owner for a period of one year from the date of original purchase against defects in manufacture. This limited warranty is given by AEMC Instruments, not by the distributor from ®...
  • Page 75 ShopAEMC www. 1.877.766.5412 Shop for AEMC products online at:...
  • Page 76 08/08 99-MAN 100298 v10 ShopAEMC www. 1.877.766.5412 Chauvin Arnoux , Inc. d.b.a. AEMC Instruments Shop for AEMC products online at: ® ® 15 Faraday Drive • Dover, NH 03820 USA • Phone: (603) 749-6434 • Fax: (603) 742-2346 www.aemc.com...

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