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User Manual - Chauvin Arnoux Group

1. Error Error type Error description 00 Microcontroller ROM check sum 01 Hardware error thd 02 Hardware error thd 03 Hardware error thd 04 Fatal Hardware error unexpected interrupt 06 Harmless Watchdog autoreset 07 Harmless Stack overflow 08 Fatal RTC communication 11 Harmless FlashROM options checksum 12 Fatal FlashROM constants checksum 13 Fatal FlashROM calibration factors checksum 14 Recoverable FlashROM modbus base registers checksum 15 Fatal FlashROM frequency list checksum 16 Fatal FlashROM DSP programs checksum 18 Fatal recoverable FlashROM battery constants checksum 19 Recoverable FlashROM data records sectors 21 Fatal Accu zero calibration 30 Recoverable Measurement stop NMI 31 Recoverable Measurement stop high voltage on inputs 32 Recoverable Measurement stop voltage overrange 33 Recoverable Measurement stop current overrange Deleting the user memory stored data records in Set up should help 70 Ground Resistance Tester Model 6470 Repair and Calibration To ensure that your instrument meets factory specifications we recommend that it be scheduled back to our factory Service Center at one year intervals for recalibration or as required by other standards or internal procedures For instrument repair and calibration You must contact our Service Center for a Customer Service Authorization Number CSA This will ensure that when your instru
2. Select the DataView Version 2 xx xxxx option from the list then click on Install The Installation Wizard window will appear Click Next In the Customer Information window enter a Name and Company then click Next In the Setup Type window that appears select the Complete radio button option then click Next The Select Features window appears allowing features for all instruments compatible with DataView to be selected or not selected to install Select the instrument s that you want to install You can update the software to include other instruments later if necessary 58 NOTE The PDF XChange option must be selected to be able to generate PDF reports from within DataView Dataview InstallShield Wizard Select eotures vom ww Dand Terne g Meptrrere J Power Quay Logge w PoPa y PorerPad A v Sorte Daa Logoa w Saree Logoa I A Watie 8220 Aro uror pra Nat Corcel Figure 5 2 In the Ready to Install the Program window click on Install If the instrument selected for installation see Figure 5 2 requires the use of a USB port a warning box will appear similar to Figure 5 3 Click OK If the USB drivers are not needed Setup will continue at step 12 Ground Resistance Tester Model 6470 De not connect the ADME USD inctrumeet or cable ured after the inctadstion of the drivers and the Dataview software Bat fratad i I the ARME USE Seetrigreet or Cate amp
3. 43 46 49 110 119 122 50 128 20 57 60 61 64 67 69 73 79 82 85 92 98 Ground Resistance Tester Model 6470 3 2 6 Data Storage Memory Capacity 512 test results 64kB Communication Optically isolated USB 3 2 7 Power Power Source Rechargeable NiMH 9 6V Battery Pack Battery Life Function Power consumption Number of measurements Instrument on Standby 0 7 mW none Ground Voltage Measurement 1 65 W 2500 Bond Continuity Measurement 6W 1500 Ground Resistance Measurement 3 5 W 1000 Soil Resistivity Measurement 3 2 W 1200 1 With 5 sec or the time defined by the instrument measurement and 25 sec pause at normal load 2 With R 10 3 With Re 10Q and RH Rs 1kQ 4 With Rs es 100Q and Rph Rps RpE RpEs 1kQ Power Supply 110 220 50 60Hz external charger with 18VDC 1 9A output or 12VDC vehicle power Fuse 0 63A 250V 5x20mm 1 5kA 3 3 Mechanical Dimensions 10 7 x 9 76 x 5 12 272 248 x 130mm Weight 7 5 Ibs 3 4kg Case Material ULVO 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 Ground Resistance Tester Model 6470 21 3 4 Environmental Operating Temperature 14 to 131 F 10 to 55 C 0 to 75 RH Operating Temp
4. DC Resistance Test Voltage 16Vbc Maximum Current lt 200mAopc with load resistance lt 200 Permanent Overvoltage Veff 50VAc max protection against power supply voltage until 250V Inductive Load 2 Henry max Auto ranging Time 5 s approx Measuring Duration 8 s in automatic polarity change 3 s in manual mode Calculation with R comp R displayed R measured R comp Test Lead Resistance Compensation Limit 0 lt R comp lt 5Q Disturbance Voltage 60V peak 42Veff AC sin max Alarm Setting gt or lt 1 to 999Q on 3 digits 2 Wire Range Resolution Accuracy 0 01 to 9 990 0 01Q Nominal 10 0 to 99 90 0 10 2 of Reading 2cts 100 to 999Q 10 Fields 1 00 to 9 99kQ 100 pees 10 0 to 99 9kQ 1000 5 of Reading 3cts 4 Wire Kelvin Sensing Range Resolution Accuracy 0 001 to 9 9990 0 0010 ina 10 00 to 99 990 0 010 a ciasanitiy is 100 0 to 999 90 0 10 1 000 to 9 999kQ 10 weet 10 00 to 99 99kQ 10 5 of Reading Scts 3 2 4 Ground Earth Measurement 3 Pole 3 Point Fall of Potential Test Voltage 16Vrms or 32Vrms Test Frequency See chart Test Current lt 250mA Noise Rejection gt 80 dB 16 2 3 50 60 and 400HZ if the measurement frequency is 20 above or below the disturbance frequency Ground Resistance Tester Model 6470 17 Overload Voltage Vrms 250V max Measuring Time Short START push 8s for the first value of RE at 128Hz then 3 readi
5. Q A2 Uour 32 V A2 U S ES A2 U H E A2 Rs es Q A3 d 1 0m A3 94 Hz A3 Hz A3 Hz A3 d 1 0 m The indication rule for all resistivity measurements is if there is no valid distance typed in the p value remains with State 2 DISPLAY Button during measurement Wenner method DISPLAY button after a short START push Initial First Push Second Push Third Push Al ps Qm A1 ps Qm A1 ps Qm A2 A 1 0 m A2 Rees Q A2 Uour 32 V A2 U ss A3 d 20 0m A3 d 20 0 m A3 94 Hz A3 Hz Fourth Push Fifth Push Al ps Qm A2 Une A2 A 1 0 m A3 Hz A3 d 20 0m DISPLAY button after a long START push Initial First Push Second Push A1 pwXXXQm A1 pw XXXQm A1 pwXXXQm A2 Rs g XXX Q A2 Uses XXX V A2 Rs es XXX Q A3 d 1 0 m A3 I ye MA A3 d 1 0m Initial First Push Second Push Third Push A1 pwXXXQm A1 pwXXXOm A1 pw XXXQm A3 d 1 0m A2 Rs eg XXX Q A2 Une XXX V A2 Uses XXX V A3 d 1 0m A3 94 Hz A3 ne MA Schlumberger method DISPLAY button after a short START push Initial First Push Second Push A1 ps XXXQm A1 ps XXXQm A1 ps XXXQm A2 Rs 5 XXX Q A2 Us es XXX V A2 Rs es XXX Q A3 d 1 0 m A3 n MA A3 d 1 0 m Ground Resistance Tester Model 6470 49 DISPLAY button after a long START push Initial First Push Second Push Third Push Fourth Push A1 ps XXXQm_ Al ps
6. blinking as long as the first mea surement takes place and is stable after the measurement has been stopped After storing the results the next number 2 appears Functionality for measurement 2 and 3 is analog to measurement 1 During subsequent measurements 2 and 3 there is no HZ OPTION button set ting possible A HZ OPTION and SELECT Y button has no effect after the first measurement has been started State 1 DISPLAY Button before 3 Pole 3 Point measurements 1 and 2 The display shows EARTH COUPLING X X blinking 1 or 2 and the corre sponding suffix X on A1 Initial First Push Second Push 1 Third Push 1 Fourth Push Al Rx Q Al Rx Q Al Rx Q AC AC A2 U s A2 U ne AC A2 Ry Q A2 U our 32V A3 Hz A3 Hz A2 Ry Q A3 R s Q A3 96 Hz A3 R s Q 1 A2 and A3 shows the disturbance RMS signal between H Z and E X or S Y and E X inputs and its fundamental frequency State 1 DISPLAY Button before 2 Point measurement 3 The display shows EARTH COUPLING 3 3 blinking Without compensation Initial First Push Second Push 1 Al Ria Q AC Al Ri2 Q AC A2 U our 32V A2 U ne A2 U our 32V A3 96 Hz A3 Hz A3 96 Hz 42 Ground Resistance Tester Model 6470 With compensation Initial First Push Second Push 1 Third Push Al R 42077 Q AC Al R1 2 Q AC Al R qamma Q AC A2 U our 32V A2 RAO XXX Q A2 U p A2 U our
7. 3 2 1 Voltage MeaSUreMent eee eeeeeeeeeeceeeteeeeeeeeeeeaeeeeeaaeeeeenes 16 3 2 2 Frequency Measurement ccceecceceeneeeeeeeeeeenneeeeenaeeeeeeees 16 3 2 3 Bond Resistance Continuity Measurement s e 17 3 2 4 Ground Earth Measurement 3 Pole Fall of Potential 17 3 2 5 Soil Resistivity 4 Pole Measurement ccceeeeeeees 19 3 2 6 Data Storage scccescncessscerecessetesecternenseecesnenesceensnseceeseeers 21 3 2 1 POW inen inga an i aie a a 21 3 3 Mechanical mietin neron e a d a 21 34 Environmental ss secicvgs cxssternessetetesaiesseere ante anus paipa evini eedt ii anode 22 SETET EEE E E E TA 22 OPERATION 0ccssecssseecssneesseeesseeeneeessneessaeessneeesanenseesssneesneeensnerss 23 4 1 Instrument Configuration SET UP mode ce eeeeeeeeeeeeeeeeeeneeeeee 23 4 2 Operation Mode sec sccc ccsceecce tess iei iii iinne 24 4 2 1 Voltage Check ecececccceceececenceeeeeceeaeeeceeeeeneaeceseeeeeaeeeeeeees 25 4 3 General Operating R UleS cccccescscdesesteeeeeeceneecenesseteeseneeedesentenss 26 4 4 Bond Resistance Continuity Measurement MQ position 28 4 4 1 Configuration Settings eeccesseeeeeeeeeenneeeeeeeeeeneeeeneas 28 4 4 2 Lead Compensation Measurement 2 Wire Mode Only 29 4 4 3 Measurement and Results eee ceceeeeeeeeeeesneeeeereeeeseeeeeaes 29 4 5 Ground Resistance Measurement 3 Pole 3 Point eee 34 4 5 1 M
8. EN 61010 2 031 Set the switch to the OFF position when the instrument is not being used 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 4 Ground Resistance Tester Model 6470 1 1 International Electrical Symbols Signifies that the instrument is protected by double or reinforced insulation This symbol on the instrument indicates a WARNING and that the operator must refer to the user manual for instructions before operating the instrument In this manual the symbol preceding instructions indicates that if the instructions are not followed bodily injury installation sample and or product damage may result Risk of electric shock The voltage at the parts marked with this symbol may be dangerous In conformity with WEEE 2002 96 EC Ke Po 1 2 Definition of Measurement Categories Cat l For measurements on circuits not directly connected to the AC supply wall outlet such as protected secondaries signal level and limited energy circuits Cat Il For measurements performed on circuits directly connected to the electrical distribution system Examples are measurements on household appliances or portable tools Cat Ill For measurements performed in the building installation at the distribution level such as on hardwired equipment in fix
9. starting a new measurement In State 2 the frequency function of the HZ OPTIONS button is active It provides a display of the actual frequency which blinks indicating that modifications are possible If a change is made to the used frequency by pushing the SELECT button the instrument changes to MANUAL mode for all Earth Ground resistance functions and accepts the manual selection of a frequency Identical to the AC resistance meaning of the HZ OPTIONS button in Bond Re sistance Continuity Measurement in State 2 the HZ OPTIONS button causes to change the polarity of the current In the AUTO mode 3 Pole 3 Point measurement selects the best frequency and if a disturbance occurs stops the measurement automatically This means that an FFT analysis of a disturbance voltage searches the best available test frequency for a stable measurement This automatic selected frequency is at least 20 out of the detected disturbance frequency value If no suitable frequency 26 Ground Resistance Tester Model 6470 is found by the instrument the blinking NOISE symbol appears together with the measurement results In the MANUAL mode the blinking NOISE symbol appears after the measurement has been started or if the measurement frequency is too close to the detected dis turbance frequency The user may now choose another frequency that is out of the previously measured disturbance spectrum If the new measurement frequency provides a disturbance
10. 0 0 0 0 Cat 2135 36 Includes 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 carrying bag Test Kit for 4 Pole 4 Point Testing 500 ft 0 0 ee Cat 2135 37 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 T shaped auxiliary ground electrodes set of five spaded lugs one 100 ft AEMC tape measure carrying bag Test Kit for 3 Pole 3 Point Testing Supplemental for 4 Pole 4 Point Testing c cccccceceeceeeeeeeeeeeeeteeteees Cat 2135 38 Includes two 100 ft color coded leads hand tied green black one 30 ft lead green two T shaped auxiliary ground electrodes set of five spaded lugs one 100 ft AEMC tape measure carrying bag Carrying Bag Replacement for Ground Kits Cat 2119 82 Tape Measure AEMC 100 ft eeeeeeceeereeeeeeeeeeereeeeeeeees Cat 2130 60 Ground Tester DVD Workbook Set eeceeeeeeeeseneeeeenteeeeneeeeees Cat 2130 64 Set of two 14 5 T shaped Auxiliary Ground Electrodes Cat 2135 39 Carrying Bag Replacement for Meter Cat 2135 40 Optical USB Cables snini e een i E E Cat 2135 41 12V Battery Adapter for vehicle use eeeeeeeeereeerre rennen Cat 2135 42 Rechargeable NiMH 9 6V Battery Pack enee
11. AUTO mode MANUAL mode Bond Resistance e Automatic polarity change Manual polarity selection with tite Hz OPTIONS button Continuity e Automatic end of Measurement measurement Mangal end of measurement Press on the START STOP button e Automatic measurement e Manual measurement frequency 3 Pole 3 Point Fall of Potential frequency adjustment adjustment Measurement e Automatic end of e Manual end of measurement measurement Press on the START STOP button e Manual measurement frequency adjustment for first measurement only e Not allowed e Manual end of measurement Press on the START STOP button e Automatic earth coupling calculation e Manual measurement frequency adjustment e Manual end of measurement Press on the START STOP button e Automatic calculation by setting of distances of the rods Earth Coupling Calculation 4 Pole 4 Point Soil Resistivity e Not allowed Measurement Frequency settings have a default value in each function after rotary switch changes 24 Ground Resistance Tester Model 6470 4 2 1 Voltage Check An external voltage check occurs at the beginning of each measurement This voltage is sensed through e Terminals E X and H Z for Bond and Continuity testing in mQ e Terminals E X and S Y for Ground Resistance testing and Earth Cou pling testing 3 Pole 3 Point e Terminals E x and ES Xv for Soil resistivity testing 4 Pole 4 Point To view the extern
12. Connected to the Comgeter noes then dicoret E frorn he Computer before pricei x Figure 5 3 10 The Install Driver dialog box will appear Click on Install Al Silicon Laberatories CP710x LISH te UART Bridge Driver Installer Se Saon Laboratories Siton Labor stories CP210 USB to LAAT Bridge ingtalahon Locabon Driver Verson 4 40 Ci Program Ples Slabs MOU CP21G Change Instal Location Figure 5 4 NOTE The installation of the drivers may take a few moments Windows may even indicate that it is not responding however it is running Please wait for it to finish 11 When the drivers are finished installing the Installation Successful dialog box will appear Click on OK 12 Next the Installation Wizard Complete window will appear Click on Fin ish 13 A Question dialog box appears next Click Yes to read the procedure for con necting the instrument to the USB port on the computer 14 Restart your computer before connecting the instrument to the USB port on the computer NOTE The Set up window should still be open You may now select another option to download e g Adobe 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 Ground Resistance Tester Model 6470 5 4 Installing the USB Drivers for Each Instrument AN INSTALL DATAVIEW SOFTWARE AS SHOWN IN THE PR
13. HZ OPTIONS button Switch between 2 Wire and direction and 4 Wire and direction indicated with the input connection and the symbols Initial First push Second push A1 RXXXQ DC A1 RXXXQ_ DC A1 RXXXQ_ DC A2 U XXX V DC A2 U XXX V DC A2 U XXX V DC A3 XXX mA A3 XXX mA A3 XXX mA DISPLAY button 2 Wire without compensation No effect DISPLAY button 2 Wire with compensation No effect DISPLAY button 4 Wire No effect Ground Resistance Tester Model 6470 31 State 3 AUTO Mode after the measurement A Hz OPTIONS and SELECT Y button AN Any change in configuration settings will erase the results and return to State 1 DISPLAY button 2 Wire without compensation Initial First push Second push Third push Fourth push A1 R XXX Q DC A1 R XXX Q DC A1 R XXX Q DC A1 RXXXQ DC A2 R XXX Q A2 UXXXVDC A2 UXXXVDC A2 U A2 R XXX Q A3 R XXX Q A3 XXX mA A3 XXX mA A3 Hz 1 A8 R XXXO Note example with DC direction DISPLAY button 2 Wire with compensation Initial First push Second push Third push A1 RXXXQ DC Al R XXX Q DC Al RXXXQ DC AI RXXXQ DC A2 R XXX Q A2 RAO 0 to 50 A2 U XXXV DC A2 U XXX V DC A3 R XXX Q A3 XXX mA A3 XXX mA Fourth push Fifth push A1 RXXXQ DC A2 U pE A2 R XXX Q A3 Hz 1 A3 R XXX Q Note example with DC direction 1 external voltage measurement D
14. If blinking indicates the measurement had a disturbance at the moment the measurement was started The measurement results can still be read in State 3 see 2 5 6 If blinking indicates the value is ready to be overwritten with a new value DISTANCE or that a new value will be entered instead of If more than one value has to be entered the SELECT A W button moves to the next one CONFIG Indicates that the blinking value of AUTO MANUAL mode frequency volt age or DC current direction can be changed SMOOTH Optional with a push on the 2nd button sets a digital filter active SWEEP Symbol not used in Model 6470 FREQUENCY Indicates the test frequency OBJ TEST Memory address Ground Resistance Tester Model 6470 11 2 5 Button Functions 2 5 1 START STOP Button This button starts a measurement and depending on the selected mode manual or automatic the instrument stops the measurement automatically or the user must stop the measurement by a second push of this button A short push lt 2s enables a faster measurement because there is no measurement of the auxiliary rod resistances The chain of all displayed results is therefore shorter than after a long START push A long push gt 2s until the second beep occurs enables the measurement of all auxiliary rod resistances If the voltage conditions lt 60Vp on the inputs are met and the connections are good the instrument immediatel
15. Push 3 Fourth Push A1 ps XXXQm A2 U ses A2 U p A2 Rs esXXX Q A3 Hz A3 Hz A3 d 1 0m 1 distance A can be seen instead of RS ES using the DISTANCE button 50 Ground Resistance Tester Model 6470 DISPLAY button after a long START push Initial First Push Second Push Third Push A1 psXXXOm A1 p XXXQm A1 p XXXQm A1 p XXXQm A2 A 1 0m A2 R s XQ A2 U XXXV A2 Rg Q A3 d 20 0m A3 d 20 0m A3 94 Hz A3 R Q Fourth Push Fifth Push Optional Push 2 Optional Push 2 A1 psXXXOm A1 psXXXOm A2 Res Q A2 Us es XXXV A2 U ses NOISE A2 U p NOISE A3 Res Q A3 lye MA A3 Hz A3 Hz Sixth Push 3 Seventh Push 3 Eighth Push A1 ps XXXQm A2 Uses A2 U H E A2 A 1 0 m A3 Hz A3 Hz A3 d 20 0 m 2 if NOISE was blinking during the measurement in State 3 NOISE is stable and the values that had been measured during the measurement are shown 3 display shows actual readings of the external voltage and frequency 4 7 4 DISTANCE Button Results The distances in W enner d and S chlumberger d A function are entered by pushing the DISTANCE button These parameters can be set before and after the measurement States 1 and 3 but are not accessible during the measurement State 2 If there was already a measurement result the new value entered modifies the displayed result for Rho p Pushing the DISTANCE button the highest digit blinks Press the button to m
16. START STOP button to measure Short Push pressed briefly the START STOP button triggers the earth resis tance measurement RE Rx only 7 second measurement approx Long Push pressed and held 2 seconds the START STOP button triggers the earth resistance measurement RE and the resistance measurement on the auxil iary rods Rs Rz and RH Ry 15 second measurement approx In AUTO mode the measurement stops automatically In MANUAL mode the measurement continues until the START STOP button is pressed If during the measurement the ground noise is too high and affecting the measurement accuracy NOISE will be displayed and blinking If a stray voltage gt 60Vpeak appears the measurement will stop Ifthe measurement is unstable or seems not coherent check the connections and measure again The Ground Resistance value is displayed at the top of the display e g RE 16 609 NOTE The actual test time is dependant on the test conditions and longer when the Model 6470 searches for the optimum test frequency Ground Resistance Tester Model 6470 35 4 5 2 AUTO and MANUAL Modes The principal difference of the behavior of the instrument during a measure ment between AUTO or MANUAL mode is In AUTO mode in case of a detected disturbance the instrument selects a measurement frequency that reduces the influence of a disturbance to a minimum and stops the measurement by itself after a stable result If no suitable frequ
17. XXXQ A2 U we XXXV A2 U se XXX V A2 U s NOISE A3 R s XXXQ A3 F 96 Hz A3 ne XXX MA A3 Hz Optional Push 2 Third Push Fourth Push Fifth Push A1 Rx XXXQ _ AC A2 U n NOISE A2 U s A2 U p A2 R y XXXQ A3 Hz A3 Hz A3 Hz A3 R s XXXQ 1 A2 and A3 shows the disturbance RMS signal between H Z and E X or S Y and E X inputs and its fundamental frequency that had been detected during the functional measurement 2 A2 and A3 shows the current disturbance RMS signal between H Z and E X or S Y and E X inputs and its fundamental frequency State 3 DISPLAY Button after measurement 3 With compensation optional or without Initial Optional Push First Push Optional Push 1 with compensation A1 Ri2 XXXQAC AI Ri2 XXXQAC A1 R 42 XXX QAC A2 U pe XXXV A2 RAO 0to50 A2 U ye XXXV A2 U ye NOISE A3 F96 Hz A3 p e XXX MA A3 Hz Second Push Second Push A1 R 4 2 XXX Q AC A2 U ne A2 U ye XXXV A3 Hz A3 F 96 Hz 1 A2 and A3 shows the disturbance RMS signal between H Z and E X or S Y and E X inputs and its fundamental frequency that had been detected during the functional measurement State 3 DISPLAY Button after measurement 3 has been stored If MEM is pushed after the third measurement the display queue changes to the coupling information Initial First Push Second Push Third Push 1 Al Rc XXX Q A1 R c XXX Q A1 R c XXX Q A1 R c XXX Q A2 C1 X
18. XXXQm__ Al ps XXXQm_ Al ps XXXQm_ Al ps XXXQm A2 A 1 0 m A2 Rs esXXXQ A2 Un eXXXV A2 Us esXXXV A2 A 1 0 m A3 d 20 0m A3 d 20 0m A3 94 Hz A3 l e MA A3 d 20 0 m State 3 DISPLAY Button in after measurement Wenner method DISPLAY button after a short START push Initial First Push Optional Push 1 Optional Push 1 A1 py XXXQm A1 rW XXXWm A2 Rs esXXX Q A2 US ES XXXV A2 U ses NOISE A2 U ne NOISE A3 d 1 0 m A3 IH E mA A3 Hz A3 Hz Second Push 2 Third Push 2 Fourth Push A1 pw XXXQm A2 U ses A2 Une A2 RgesXXX Q A3 Hz A3 Hz A3 d 1 0m DISPLAY button after a long START push Initial First Push Second Push Third Push Fourth Push A pwXXXQOQm A1 rW XXXWm A1 pw XXXQm_ Al pw XXXQm A1 pw XXXQm A2 Rg esXXX Q A2 UH E XXXV A2 Rp XXXQ A2 Rees XXXQ A2 Us es XXXV A3 d 1 0m A3 94 Hz A3 Rr XXXQ A3 Res XXXQ_ A3 Ine MA Optional Push 1 Optional Push 1 Fifth Push 2 Sixth Push 2 Seventh Push A1 pw XXXQm A2 U S ES NOISE A2 U H E NOISE A2 U S ES A2 U H E A2 Rs esXXX Q A3 Hz A3 Hz A3 Hz A3 Hz A3 d 1 0m Schlumberger m ethod DISPLAY button after a short START push Initial 1 First Push Optional Push 2 Optional Push 2 A1 ps XXXQm A1 rS XXXWm A2 Rs esXXX Q A2 US ES XXXV A2 U ses NOISE A2 U ne NOISE A3 d 1 0 m A3 IH E mA A3 Hz A3 Hz Second Push 3 Third
19. free measurement the NOISE symbol disappears The external voltages are not shown on the display during the measurement State 2 but only before a measurement starts State 1 and after the measurement ends State 3 unless the DISPLAY button is pushed during the measurement In State 1 there is no NOISE recognition Pushing the START STOP button sets the measurement into action and switches the display to the initial screen depending on the function The main procedure is as follows U disturbance check before the functional measurement No measurement if the measured voltage U H E or U s E or U S Es is higher than 60Vp e Connection check Along press gt 2s on the START STOP button measurement of the ground electrodes resistances Start of the functional measurement STOP is only active in MANUAL mode and when the measurement is running If no main measurement result has occurred and the 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 NOTE In the following sections A1 A2 and A3 refer to the following A1 Top Display A2 Middle Display A3 Bottom Display A emn iit RO p RIB COUPTIN SMOOTH R REMOTE con MEMMR CON
20. held 2 seconds the START STOP button triggers the resistance measurement Rs Es and the resistance measurements on the auxiliary rods RPH RPs RPE and RPES e The distances required for the p calculation are programmed using the DIS TANCE button one distance only d for the Wenner method two distances A and d for the Schlumberger method e The values are chosen using the gt A V before or after the measure ment AN NOTE The distances A and d cannot be modified during the measurement During the measurement you can use the Hz OPTIONS and buttons to modify the measurement frequency between 41 and 128 Hz only If the measurement is unstable and results are inconsistent trigger the measure ment again to check that the problem is not a faulty connection Any change to the A or d distance parameters after the measurement will auto matically result in a new resistivity calculation by the instrument Several measurements can be saved for different distances in a single OBJ TEST test location In this way the resistivity can be determined as a function of the dis tance and therefore of the depth of the measurement location 48 Ground Resistance Tester Model 6470 4 7 3 Measurement Results State 1 DISPLAY Button before measurement Initial First Push Second Push Third Push Fourth Push Al py Om Al pw Qm A1 py Om A2 Rs es
21. number 1 2 and 3 indicated on the display When the results of measurement 1 have been stored 2 is blinking on the display and so on After the START of the first measurement no change is possible with the HZ OP TION button until the 3rd measurement has been stored The measurements before reaching the final calculation can only be stopped by switching of the main function switch The arrangement of the auxiliary H Z and probe S Y electrode should not be removed during the three measurements Frequency change if needed is only possible for the first measurement the same measurement frequency is used for all 3 measurements After the results of the third measurement have been stored the instrument cal culates all coupling results and stores them into extended location 4 automatically and displays R C1 and C2 Each result can be recalled using the MR button Ground Resistance Tester Model 6470 41 4 6 2 Measurement Results The following paragraphs show the different possible selections and the different screens which are reachable with the DISPLAY button depending of the configu ration and the State 1 2 or 3 of the instrument For this function short and long START pushes see 4 5 1 are allowed for mea surements 1 and 2 Only a short push is possible for measurement 3 as no auxiliary rod is connected A State 1 HZ OPTIONS and SELECT V Button before measurement The display shows EARTH COUPLING 1 1
22. sounding The theory behind the resistivity method was intro duced with some degree of sophistication Experimentally determined values of depth to surface were correlated with the values determined from the excavated site and this gave a good correlation 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 Ground Resistance Tester Model 6470 45 4 7 1 Advantages and Disadvantages of Wenner and Schlumberger significantly decrease the time required to acquire a sounding Schlumberger Wenner Advantage Disadvantage Advantage Disadvantage Need to move the two All four electrodes the potential electrodes ES two current E x and H Xv and S Y only for z and the two potential most readings This can ES Xv and S Y must be moved equally to acquire each reading Because the potential electrode spacing is small compared to the current electrode soakings higher meter sensitivity is required Potential electrode spacing increases as current electrode spacing increases Less sensitive meters may be used Because the potential electrodes remain in fixed locations the ef fects of the near surface lateral variations in resistivity are reduced based on DC soundings will be limited to simple horizontal layered structures In general interpretations Because all e
23. the 2 and START buttons If the leads are shorted and the measured resistance value is between 0 to 5Q the symbol for compensation appears and the value is stored until the instrument is switched off If the resistance is higher than 5Q compensation is cancelled The START button is always active State 1 MANUAL Mode before the measurement HZ OPTIONS and SELECT buttons DISPLAY button 2 Wire or direction without compensation 30 Initial First push Second push A1 R Q DCor DC Al R Q DC or DC A2 U V DC A2 U A2 U V DC A3 mA A3 Hz A3 mA Ground Resistance Tester Model 6470 DISPLAY button 2 Wire or direction with compensation oa gt Second Initial First push push Third push A1 R Q DC or DC M R Q DCor DC Al R Q DC or DC A2 U V DC A2 RAQ 0t050 A2 U A2 U V DC A3 mA a A3 Hz A3 mA DISPLAY button 4 Wire Initial First push Second push Third push A1 R Q DC or DC A1 R Q DC or DC A2 A2 U V DC A2 U gs A2 U A2 U V DC A3 mA A3 Hz A3 Hz A3 mA State 2 AUTO Mode during the measurement The STOP button is inactive The only way to stop the measurement is to turn the rotary switch to another position DISPLAY button 2 Wire with and without compensation No effect DISPLAY button 4 Wire No effect State 2 MANUAL Mode during the measurement
24. 100 0 to 999 90 10 sae irl a aoe 2 See aan table 10 00 to 99 9kQ 1002 g With the following reference conditions frequency measurement 128Hz voltage measure ment 32V RH Rs Res RE 0Q no voltage disturbance automatic range switching in dependency of Ru Rs Res RE and measurement voltage Operating conditions Operating error on RS ES Auxiliary ground rod lt 100kQ Auxiliary ground rod resistance Rs Es lt 2000 Measurement frequency 41 to 128Hz No disturbance voltage or Disturbance voltage lt 60V peak with f meas f dist f meas gt 0 2 7 2cts Auxiliary ground rod lt 50kQ Auxiliary ground rod resistance Rs Es lt 10 000 Measurement frequency 41 to 128Hz No disturbance voltage or Disturbance voltage lt 60V peak with f meas f dist f meas gt 0 2 15 3cts Auxiliary ground rod lt 10kQ Auxiliary ground rod resistance Rs Es lt 20 000 Measurement frequency 41 to 128Hz No disturbance voltage or Disturbance voltage lt 60V peak with f meas f dist f meas gt 0 2 20 ict Auxiliary Ground Rod Resistances RH RS RES RE Range Resolution Accuracy 0 01 to 9 99 0 010 10 0 to 99 90 0 10 100 to 9990 10 Field 1 00 to 9 99kQ A f 100 10 of Reading 2cts at 128Hz 10 0 to 99 9kQ 1009 Test Frequency Selection Table Frequency Table Hz for 6470 4 Pole 4 Point 41 101
25. 32V A3 96 Hz 0 5Q A3 Hz A3 96 Hz 1 A2 shows the disturbance RMS signal between H Z and E X inputs and its fundamental frequency State 2 DISPLAY Button during measurements 1 and 2 DISPLAY button after a short START push No effect DISPLAY button after a long START push A1 RxXXXQ AC A2 R 4 XXXQ Al R x XXXQ AC A2 U ne XXXV A3 F 96 Hz Al Rx XXX AC A2 U s e XXX V A3 I ue XXXMA FirstPush Second Push Third Push A1 RxXXXQ AC A2 R 4 XXXQ A3 R s XXXQ State 2 DISPLAY Button during measurement 3 With or without compensation DISPLAY button after a short START push No effect DISPLAY button after a long START push Initial A1 R 2 XXX Q AC A2 U we XXXV A3 F 96 Hz First Push A1 R 4 2 XXX Q AC A2 U ye XXXV A3 n e XXX MA Second Push A1 R 4 2 XXX Q AC A2 U ye XXXV A3 F 96 Hz State 3 DISPLAY Button after measurements 1 and 2 DISPLAY button after a short START push Ground Resistance Tester Model 6470 Initial Optional Push 1 Optional Push 2 First Push A1 RxXXX Q AC A2 Use XXXV A2 U s NOISE A2 U ye NOISE A2 U se A3 ue XXX mA A3 Hz A3 Hz A3 Hz Second Push Third Push A1 R XXX Q AC A2 U ne A2 U se XXXV A3 Hz A3 we XXX MA 43 DISPLAY button after a long START push Initial First Push Second Push Optional Push 1 A1 RyXXXQ AC A1 Ry XXX Q AC Al Ry XXX Q AC A2 R y
26. EVIOUS SECTION BE FORE CONNECTING THE INSTRUMENT TO THE COMPUTER The USB driver operates at two levels e First Level This level is for communication between the instrument and the USB port This is done automatically during DataView s installation e Second Level This level is for communication between the DataView appli cation and the USB port This is done when the instrument is connected to the computer Upon the Second Level installation the Found New Hardware dialog box will be displayed Windows will complete the driver installation process automatically NOTE If you connected your instrument to the computer before installing the software and drivers you may need to use the Add Remove Hardware utility to remove the instrument driver before repeating the process 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 To connect the Model 6470 to your computer 1 Connect the optical connector end of the cable to the serial port on the front panel of the Model 6470 see 2 3 Item 8 2 Connect the USB type A end of the cable to an available USB port on your computer You are now ready to use the DataView software with the 6470 60 Ground Resistance Tester Model 6470 5 6
27. FIG MANUALAUTO SWEEP BEI Figure 4 1 Ground Resistance Tester Model 6470 27 The following sections describe the types of measurements and the different possible selections and screens which are available using the DISPLAY button depending on the configuration and the State 1 2 or 3 of the instrument 4 4 Bond Resistance Continuity Measurement m2 position The instrument is designed to measure resistances up to 100kQ The DC mea surement is at 16V and the test current is gt 200mA up to 20Q complies to IEC standard 61557 4 and less above 202 This function is used to measure bonding resistance and or continuity of grounds and bonds There are two set ups e 2 Pole or 2 Wire measurement This functions as a typical ohmmeter The terminals E X and H Z are used The test lead resistance may be manu ally removed e 4 Pole or 4 Wire measurement This is also referred to as the Kelvin Sensing method It uses 4 test leads and the test lead resistance is automatically eliminated from the measurement Users concerned by the lead resistance and don t want it in the measurement use this method All four terminals are used 2 Pole Wire Connection 4 Pole Wire Connection H Z H 2 S Y R R OO Ol ES Xv L TE E x Figure 4 2 4 4 1 Configuration Settings By default the ins
28. H E 4 Wire measurement The instrument will perform a voltage check see 4 2 1 e Ifan AC or DC voltage gt 42Vrms is detected at the terminals the measure ment is stopped During the measurement In MANUAL mode only the HZ opTIONs button is used to change the polarity of the measurement current 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 Ground Resistance Tester Model 6470 29 On completion of the measurement the following quantities can be displayed and saved using the MEM button State 1 AUTO Mode before the measurement DISPLAY button 2 Wire without compensation Initial First push Second push A1 R Q DC Al R Q DC A2 R Q A2 U A2 R Q A3 R O A3 Hz A3 R O DISPLAY button 2 Wire with compensation Initial First push Second push Third push A1l R Q 4 DC A1l R Q DC Al R Q DC A2 R Q A2 RAO 0 1050 A2 U A2 R Q A3 R O A3 Hz A3 R Q DISPLAY button 4 Wire Initial First push Second push Third push Al R Q 4 DC A1l R Q DC A2 R Q A2 U s A2 U A2 R Q A3 R O A3 Hz A3 Hz A3 R Q The DISPLAY button switches between R Q state and external voltage mea surements In 2 Wire mode compensation is accomplished with
29. ISPLAY button 4 Wire Initial First push Second push Third push Al RXXXQ DC A1 RXXXQ DC A1 R XXX Q DC A2 R XXX Q A2 U s esXXX V DC A2 U ses XXX V DC A2 U ses A3 R XXX Q A3 n e XXX MA A3 l n XXX MA A3 Hz 1 Fourth push Fifth push A1 RXXXQ DC A2 U pe A2 R XXX Q A3 Hz 1 A3 R XXX Q Note example with DC direction 1 external voltage measurement 32 Ground Resistance Tester Model 6470 State 3 MANUAL Mode after the measurement Hz OPTIONS button AN Any change in configuration settings will erase the results and return to State 1 DISPLAY button 2 Wire without compensation Initia Firstpush Second push A1 R XXX Q DC or DC A1 R XXX Q DC or DC A2 U XXX V DC U A2 U XXX V DC A3 XXX mA A3 XXX mA DISPLAY button 2 Wire with compensation Initial First push Second push Third push A1 R XXX Q DC or DC A1 R XXX Q A1 R XXX Q DC or DC A2 U XXXV DC A2 RAO 0 to 5Q A2 U g A2 U XXX V DC A3 XXX mA A3 Hz_ 1 A3 IXXX mA DISPLAY button 4 Wire Initial First push Second push Third push A1 RXXX Q DC or DC A1 RXXX Q DC or DC A2 Uses XXX V DC A2 U ses A2 U ne A2 Uses XXX V DC A3 ye XXX MA A3 Hz 1 A3 Hz 1 A3 luc XXX MA 1 external voltage measurement AN NOTE In 4 Wire measurement there is no compensation allowed NOTE In both MANUAL and AUTO mode if there is a DC disturbance v
30. RH and RS Range Resolution Accuracy 0 01 to 9 992 0 010 10 0 to 99 92 0 10 Field 100 to 9990 10 10 of R 2cts at 128H 1 00 to 9 990 100 i 10 0 to 99 9Q 1009 Test Frequency Selection Table Frequency Table Hz for 6470 3 Pole 3 Point 41 43 46 49 50 57 60 61 64 67 69 73 79 82 85 92 98 101 110 119 122 128 134 137 146 159 165 171 183 195 201 220 238 244 256 269 275 293 317 330 342 366 391 403 439 476 488 513 3 2 5 Soil Resistivity 4 Pole 4 Point Measurement Wenner and Schlumberger Methods Measuring Method AC voltage and current measurement per EN61557 part 5 Test Voltage 16Vrms or 32Vrms Test Current lt 250mA Noise rejection gt 80 dB 16 2 3 50 60 and 400Hz Overload 250Vrms max Measuring time Short START push 8s for the first value of RS Es at 128Hz then 3 readings per second Long START push 20s for the first value of Rs Es at 128Hz then 3 readings per second Resistance of Auxiliary Ground Electrode Rn Rs Res RE 100kQ max Accuracy of Ground Electrode Resistance Rh Rs RES RE 10 2cts at 128Hz Calculation for Wenner Method p 2x IIxdxR S Ground Resistance Tester Model 6470 19 Range Resolution Accuracy 0 01 to 9 990 0 010 iar 10 0 to 99 90 0 10 a
31. Starting DataView Once the connection between the computer and instrument has been completed start DataView There are two ways to open and use DataView Using the Ground Tester Icon e Double click the Ground Tester Icon that was created during installation located on the desktop e The Ground Tester Control Panel will open and the Connection window will appear Fig 5 6 Using the DataView Icon e Double click the DataView Icon that was created during installation located on the desktop e DataView will open and display the Quick Start window Fig 5 5 e Click the Configure Instrument button and the Connection window will appear Fig 5 6 Dataview Quick Stat Ea rummert Circe a ana Contgae Irainanert Heb Resina Pajta Dowrdnad Data Dpen Data Fie Open Exiting Rapor fsriect port bom tst bek Figure 5 5 e 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 e Download Data Opens the control panel and begins the download of recorded data e Open Data File Allows you to open an existing database Ground Resistance Tester Model 6470 61 5 7 Configuring the Instrument To configure the instrument perform the following steps 1 Click the Configure Instrument button from within DataView or click the Configure option from t
32. VAC Auto frequency selects the optimum frequency from 40 to 513Hz usually 128Hz or select manually from the drop down frequency list Selecting a sweep frequency test from the drop down list will bring you to the sweep table selection available only with the meter connected to a PC Contrai Pareto Ground Teste m e oue We waw no an V2 ER aT te M Oe Reet F p Seed rete 1 Pele heat pith Tn an The Peres date egar r Dyis e SA ra Th Cowen tn hee hiu ree dan KA of Meet reond fem pean Senet e Pome te Tre Read tree ratr mert DINGO 20 L949 R reps ee Figure 5 8 5 7 4 4 Pole Soil Resistivity When 4 Pole Test Resistivity is selected from the tool bar you can select e With or without Auxiliary Rod Resistance e Test voltage 16 or 32Vac e Test frequency from the drop down list selecting this will bring you to the sweep table selection available only with the meter connected to a PC Test Method Wenner or Schlumberger The distance d for Wenner test method or d and a for Schlumberger test method between the test electrodes needs to be entered for resistivity calcula tion to read out directly in Rho 64 Ground Resistance Tester Model 6470 Fhe W Pater Paste d tite 42 2 Eta tw Se 4ye boi boates By Hote Gard Sorter HOC Sere 104 Frome 12 Hee Neal fee sarea Smit 1I et Oe P cotesiter Figure 5 9 The values are written immediately into th
33. X Q A3 XXX Hz A3 ne XXX mA A3 Hz 1 Optional Push Third Push Fourth Push Fifth Push A1 R XXXQ AC A2 U e NOISE A2 U s A2 Une A2 Ry XXX Q A3 F Hz 1 A3 Hz 2 A3 F Hz 2 A3 R sXXXQ 1 If NOISE was blinking during the measurement in State 3 NOISE is stable and the values that had been measured during the measurement are shown 2 Display shows actual readings of the external voltage and frequency 4 6 Earth Coupling Measurement 3 Pole 3 Point 4 6 1 Measurement HV LV T4 RH RL w a Figure 4 5 Coupling Coefficient k RH RL RHL 2RH Ground Resistance Tester Model 6470 39 HV LV HV LV RH RL RH RL 1 30 1O 30 Ke i w a s3 of 00 oo SO o o o 00 oo e lt o 30 2 Figure 4 6 Earth coupling is a measurement done by certain utilities This test measures the coupling of two grounds through the earth This measurement is performed and accessed in the 3 Pole MANUAL mode only To configure e Turn rotary switch to the 3 Pole position Use the HZ OPTION button to select MANUAL mode then EARTH COU PLING e Press the HZ OPTION button again to change the measurement frequency or the voltage ap
34. XX A2 R a XXX Q A2 U our V A2 C1 XXX A3 C2 XXX A3 R b XXX Q A3 F 96 Hz A3 C2 XXX 44 Ground Resistance Tester Model 6470 4 7 Soil Resistivity Measurements P Position Soil Resistivity is measured using the resistance measurement Rs Es and dis tances between the measurement rods Two measurement methods are possible e Wenner method e Schlumberger method To plot the resistivity profile as a function of the depth of the earth the Schlumberg er method is easier to implement as only the two center rods need to be moved With the Wenner method the four rods need to be moved and are equally spaced This is the more common method used for measuring soil resistivity before install ing grounds Schlumberger which is also a good method also uses 4 rods but only the two center rods are moved NOTE That the two center auxiliary rods are the current electrodes and their spacing corresponds to the depth of the resistivity measured A four electrode piece of equipment which can be made available in the physics laboratory was designed and fabricated for measuring current and potential val ues so as to obtain the resistivity values Readings taken from our chosen location using both Wenner and Schlumberger arrays were analyzed In the resistivity method the Wenner configuration discriminates between resistivi ties of different geoelectric lateral layers while the Schlumberger configuration is used for the depth
35. a 6470 RESISTANCE AND SOIL RESISTIVITY TESTER GJ AEMC INSTRUMENTS User Manual ve SS SESS ESI SS EES SS SS SS SEN ES ee Se ao i Statement of Compliance Chauvin Arnoux Inc d b a AEMC Instruments certifies that this instrument has been calibrated using standards and instruments traceable to international standards We guarantee that at the time of shipping your instrument has met its published specifications An NIST traceable certificate may be requested at the time of purchase or obtained by returning the instrument to our repair and calibration facility for a nominal charge The recommended calibration interval for this instrument is 12 months and begins on the date of receipt by the customer For recalibration please use our Calibration services Refer to our repair and calibration section at www aemc com Serial Catalog Model 6470 Please fill in the appropriate date as indicated Date Received Date Calibration Due Chauvin Arnoux Inc Q d b a AEMC Instruments INSTRUMENTS www aemc com a e e e a a A READ CAREFULLY BEFORE USING FOR THE FIRST TIME Your instrument is equipped with a NiMH battery This technology offers several advantages e Long battery charge life for a limited volume and weight e Possibility of quickly recharging your battery e Significantly reduced memory effect you can recharge your battery even if it is
36. 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 is powered by 9 6V 3 5 Ah NiMH rechargeable batteries An ex ternal recharger powered from 120 230V 50 60Hz is included and provides for testing while recharging The Model 6470 can also be vehicle powered from an optional 12V battery adapter The Ground Resistance Tester Model 6470 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 adjust able 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 Ground Resistance Tester Model 6470 7 2 2 Main 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 fre quency selection 4 Pole 4 Point soil resistivity measurement with automatic calculation of Rho p 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 ac curacy
37. al voltage and it s associated frequency press the DISPLAY button The external voltage is displayed on the middle display A2 and its frequency on the lower display A3 When looking at the external voltage the main display A1 remains blank However the test voltage generated by the instrument for the measurements is displayed on the upper larger display mo U H E 12 30V Uz x 60 03Hz 3 Pole 3 Point U S E 15 70V Uy x 60 01Hz 4 Pole 4 Point U S ES 22 50V U y Xv 60 02Hz e Ifa detected voltage exceeds the value level gt 60V peak the measurement is not allowed and the display switches to external voltage indication with blink ing attention symbol e After the voltage check the instrument checks the connected leads and cancels the measurement if a missing connection is detected The instrument turns to the initial screen and the input symbols in the display blink for faulty or missing leads e If an external voltage exists and it influences the stability the NOISE symbol blinks to signal the condition e In 3 Pole 3 Point and resistivity measurements the auxiliary rod resistances will now be measured together with the earth ground resistance if the START button has been pressed for more than 2s Note that this test takes a longer time e Ifthe START button is pressed shortly lt 2s then the functional measurement omits the rod resistance measurement Ground Res
38. arranty is given by AEMC Instruments not by the distributor from whom it was purchased This warranty is void if the unit has been tampered with abused or if the defect is related to service not performed by AEMC Instruments For full and detailed warranty coverage please read the Warranty Coverage Information which is attached to the Warranty Registration Card if enclosed or is available at www aemc com Please keep the Warranty Coverage Information with your records What AEMC Instruments will do Ifa malfunction occurs within the one year period you may return the instrument to us for repair provided we have your warranty registration information on file or a proof of purchase AEMC Instruments will at its option repair or replace the faulty material REGISTER ONLINE AT www aemc com Warranty Repairs What you must do to return an Instrument for Warranty Repair First request a Customer Service Authorization Number CSA by phone or by fax from our Service Department see address below then return the instrument along with the signed CSA Form Please write the CSA on the outside of the shipping container Return the instrument postage or shipment pre paid to Ship To Chauvin Arnoux Inc d b a AEMC Instruments 15 Faraday Drive Dover NH 03820 USA Phone 800 945 2362 Ext 360 603 749 6434 Ext 360 Fax 603 742 2346 or 603 749 6309 E mail repair aemc com Caution To protect yo
39. ay results last until the SMOOTH button is pressed again 2 5 7 Hzvoptions DISTANCE Button Hz OPTIONS This button enables selection of parameters that are used in different functions Depending on the state see 2 5 6 above of the instrument this button option has different functions In State 1 and 3 e AUTO MANUAL mode e Test frequency e Test voltage e Current direction polarity in Bond Resistance Continuity Measurement Pushing this button causes the associated symbol to blink Modifications can be performed with the arrow buttons Previously measured results are lost if any pa rameter that influences the measurement result is altered In State 2 During the measurement in MANUAL mode the HZ OPTIONS button directly enables the modification of frequency in 3 Pole and Resistivity Measure ments or the current direction polarity in Bond Resistance Continuity Mea surement 14 Ground Resistance Tester Model 6470 The display automatically shows a screen where the actual measurement frequency and the measurement voltage is shown current direction for resistance measurement When the HZ OPTIONS button is active the CONFIG symbol is displayed After finishing the queue the symbol disappears Exit from CONFIG mode occurs e By pushing the DISPLAY button e Atthe end of queue in the CONFIG menu e By starting a measurement with START button By turning the main rotary switch DISTANCE This function is on
40. bol is activated when the instrument measures voltages above 60Vp 10 Ground Resistance Tester Model 6470 A y Indicates that the measurement is running in State 2 see 2 5 6 or wa instrument is working Indicates MANUAL mode the user has to stop the measurement other MANUAL wise the measurement keeps on running Indicates AUTO mode measurement stops immediately after all results AUTO are available In AUTO mode the measurement frequency is automatically adjusted to the best available disturbance voltage rejection BJ Symbol not used in Model 6470 Ra Indicates the 2 Wire DC resistance calculates the offset of the cable gt 04 resistance into the result 5Q max for offset value Symbol not used in Model 6470 Symbol not used in Model 6470 Cie Symbol not used in Model 6470 Symbolizes the soil resistivity value Rho W or S indicates respectively P that Wenner or Schlumberger method is used for the measurement changed by the Hz oPTIONS button ALARM Indicates the alarm is activated An audible alarm will sound if the value measured is above the limit defined in the SET UP mode Indicates the instrument is controlled remotely by the RS 232 USB inter REMOTE face In this mode all of the buttons and the rotary switch are inactive except switching to the OFF position MEM Indicates that there is recorded data in memory MR Memory recall displayed as long as this state is active
41. digits are accessed together CHANGE P moves the value up and down Any changes of distances in State 3 causes the instrument to recalculate the Rho values as soon as the new values are entered 4 8 Saving Measurements into Memory This function is available in State 3 Each record gets the date and time information from the internal clock at the moment the measurement is started After pushing MEM the instrument presents the next OBJ TEST free number The user can now store or modify this address using the arrow buttons If the address is already occupied the A2 display shows OCC To overwrite the record the MEM button must be pushed In case of an earth coupling function the three measurements are stored un der one OBJ TEST number with the extension 1 2 and 3 Together with the third measurement a fourth storage place is generated automatically to memorize all calculated results of the coupling In case of a resistivity measurement with several measurements different po sitions of the earth rods a third number distance d provides the memorization together with one OBJ TEST number All samples of one OBJ TEST can be trans ferred to a PC for post processing There are some conditions that influences the operation Frequency and voltage and distance A Schlumberger method must be kept for all measurements belonging to the same OBJ TEST number The setting of the distance A of the sense electrodes and distance d of the s
42. e Cat 2960 21 Order Accessories and Replacement Parts Directly Online Check our Storefront at www aemc com store for availability 6 Ground Resistance Tester Model 6470 CHAPTER 2 PRODUCT FEATURES 2 1 Description The Digital Ground Resistance Tester Model 6470 is a portable measurement in strument 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 99kQ 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 is Cat IV rated to 50V and is over voltage protected to more than 250V Ac against accidental connection to live circuits The voltage is also displayed on screen In the event of a system fault the Model 6470 can withstand 250VAc Additional features of the Model 6470 include a heavy duty field case sealed against dust and water when closed the test button is also sealed
43. e instrument Press the START STOP button to begin a test Press it again when the data is available on the screen 5 8 Downloading Data to Database From the Instrument menu select Recorded Data to download the recorded data 1 Select the data you want to download by clicking on the file name see Figure 5 10a 2 Select Save 3 Type a name for the downloaded file In the Save as type drop down menu see Figure 5 10b select either dvb saves it as a database to be viewed in DataView xls Saves it as an Excel spreadsheet file or csv saves it as a comma delimited file then and click Save Alternatively select View After the download is complete a window will appear with a graph of the data and some viewing or channel options In that window you can select Save or Print Also from the Instrument tree view expand the sections under Record ed Data from the instrument then click on a line that describes the recorded data It will bring up a window with a graph of the data Ground Resistance Tester Model 6470 65 5 8 1 Recordings a teel Perel ef Giese De beer et tow He o SQ AAE tw Kam C Dee Gerd Remtiren Pye at atr START L i EPEE Forte crear P Cormar h Figure 5 10a Save in O GroundTester 7 e oce M Measurement 2006 09 29 11 51 24 dvb M measurement 2006 06 14 BraliorPotential 2006 06 21 22 19 47 dvb M measurement 2006 05 12 My R
44. easuring Ground Resistance 20 0 0 eeeeeesseeeeeeteeeeneeeeeees 35 4 5 2 AUTO and MANUAL Modes qu cecceeceeereeeeeteeeeteteeeneeeenees 36 4 5 3 Measurement ReSults ee ceeseeeeseeeeeeeeeeeseeeeeeeeeeneeeeneas 36 4 6 Earth Coupling Measurement 3 Pole 3 PoOiNt 0 eee eeeeeeees 39 4 6 1 MeaSUreMment cccecceceeeeecteeeeeecenaeeeceeseeaeeceeeseeneaneeeeeees 39 4 6 2 Measurement Results ee ceeeeceseeeeseeeeeenneeeseneeeeeneeeeneas 42 4 7 Soil Resistivity Measurements p Position 45 4 7 1 Advantages Disadvantages of Wenner and Schlumberger 46 4 7 2 Measuring Soil Resistivity 4 Pole 4 Point eee 47 4 7 3 Measurement Results 0 ccccceeceeeceeceeeeeeeeeeeeeeseeneeeeeeeees 49 4 7 4 DISTANCE Button Results 51 4 8 Saving Measurements into MEMOTSY cece eeeeeeeeeteeeeteeeeeneeeeeneeeee 52 4 9 Recalling Measurements from Memory ce eeeeeeeeeeeeeeeeenteeeneeeeee 53 4 10 Erasing Measurements from Memory ccccceceeceeeeeeseeeeeeeeeeees 53 4 10 1 Erasing All Measurement ccccccceeeeeeeeeceeeeeeeneeeeeeeees 53 4 10 2 Erasing Selected Measurement ccceesseeeeeeeeeeenteeeeens 54 5 DATAVIEW SOFTWARE ssssssunsnnsnnnnnnnnnnnnnnnunnnnnnnnnnnnnnnnnnnnannnnnnnn nnn 55 5 4 Introduction AE E E E ahs eee E 55 D2 PO AtUreS 2 cu nann e a EA oe e a Saeed tend 56 5 3 Installing DataView ceccecccesceeeeeeceeeeeeee
45. ecent Measurement 2006 08 30 16 39 37 dvb Measurement 2006 05 11 Documents ges AC 4 Pole Wenner Rho 2007 01 24 13 54 24 dvb oe 2006 05 11 ec measurement 2007 01 24 13 54 52 dvb measurement 2006 05 11 Fie 2 Wire 2006 10 11 17 57 58 dvb Eo 2006 05 11 Measurement 2006 06 21 22 20 47 dvb Measurement 2006 05 09 measurement 2006 06 21 22 19 47 dvb measurement 2006 05 09 Measurement 2006 06 21 22 00 55 dvb Measurement 2006 05 12 Measurement 2006 06 21 21 59 20 dvb Measurement 2006 04 09 Measurement 2006 06 21 21 59 08 dvb Measurement 2006 04 09 Measurement 2006 06 21 21 56 23 dvb Measurement 2006 05 02 measurement 2006 06 18 03 16 50 dvb Samples Desktop My Documents My Computer lt File name Measurement 2006 06 21 22 19 47 My Network Save as type l Dataview Database Files dvb bd E N D dvb Places Comma Sanerated Files nsvl Figure 5 10b 66 Ground Resistance Tester Model 6470 5 8 2 Session Properties After downloading the data that is selected Session Properties opens N w A a Operator Information Information associated with the person and company conducting the test Site Information Information about the site itself Comments A place to type descriptions test results reasons for testing etc Make Default Saves the operator information into memory so that it will auto matically appear the next time This will save time on future tests Session Properties O
46. ed installation and circuit breakers Cat IV For measurements performed at the primary electrical supply lt 1000V such as on primary overcurrent protection devices ripple control units or meters 1 3 Receiving Your Shipment Upon receiving your shipment make sure that the contents are consistent with the packing list Notify your distributor of any missing items If the equipment appears to be damaged file a claim immediately with the carrier and notify your distributor at once giving a detailed description of any damage Save the damaged packing container to substantiate your claim 1 4 Ordering Information Ground Resistance Tester Model 6470 ccccssseseeeenseeeees Cat 2135 01 Includes 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 product warranty and registration card and user manual Ground Resistance Tester Model 6470 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 car rying bag for kit product warranty and registration card and user manual Ground Resistance Tes
47. eeeeeeeeeeeseeeeeseeeeeeteeteeeeaees 56 5 4 Installing the USB Drivers for Each Instrument 60 5 5 Connecting the Model 6470 to your Computer seee 60 5 6 Starting DataView csscescsseceseeseeeeeeseeeeeeseeeeseseeeeeeeenseeeeeeeeensaneaes 61 5 7 Configuring the InstruMent cccceeeeecee cee ceeeeeeeeeeeseeeaeeeeeeeeneaeees 62 5 7 1 Configuration Functions 000 0 eee eeeeeeesneeeeeneeeeeeeeeeeneeeeenas 63 7 2 DC Continuity TeSt 2 0 ccniccietccsyessecceesteeeedeesensenteneeteenevineies 63 5 7 3 3 Pole Ground Resistance Test 64 5 7 4 4 Pole Soil Resistivity 0 ccccceccceceeeceeeceeeeeeeneeeeeeeeneeeeees 64 5 8 Downloading Data to Database o0 eee eeeeeeeeeeeeeeeneeeeenaeeeeenees 65 5 8 1 RECOMINGS s2 cfec esi hee Seed Bice Recdeda tetas Aider 66 5 8 2 Session Properties kispista iai epi eaii 67 6 MAINTENANCE ssssssssnnsnnnnnnnnnnnnnnnnunnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnannnnnnnnnna 68 6 1 MaiNtenaNC Osise oinpera inada nad eE tpa nea 68 6 2 Power Supply and RecharQing cccceessceeceseeeeseeeceseeeeeneeeeeneeeeneas 68 APPENDIX A ERROR LISTINGS ssssssnsnnsnnnnnnnnnunnnunnnnnnnnnnnnnnnnnnnnnnnnnnnnn 70 Repair and Calibration cccccccccccceecseceeeeceeeeaeceeeeenaaeeeeeeseeaeaeeeeseeaeaeeeeeeeeaes 71 Technical and Sales Assistance ccccceceeeeeeeeeneeeeeeeseeeneeeeeeseeneaeeeeeesenaneeees 71 Limited Waranty vci scvees escent vee e a a aTa 72 Warran
48. ency is found the instrument signalizes NOISE and stores the corresponding voltage with its basic frequency InMANUAL mode the instrument keeps on measuring with a fixed selected frequency no matter how big the influence of an external disturbance volt age is assumption the external voltage does not exceed the maximum input voltage If the instrument detects a voltage that exceeds 60V peak the measurement is cancelled and the disturbance voltage will be displayed 4 5 3 Measurement Results This section shows the different possible selections and the different screens which are reachable with the DISPLAY button depending of the configuration and the state 1 2 or 3 of the instrument A State 1 and State 3 HZ OPTIONS and SELECT V Button AUTO MANUAL Mode before and after functional measurement When pushing the HZ OPTION button the display shows the CONFIG symbol and the parameter that is configurable will blink The HZ OPTIONS button selects the parameter that can be modified Validation of a parameter is made By pushing the HZ OPTIONS button to the next step e By starting a measurement pushing the START button short push or long gt 2s push see 4 5 1 By turning the rotary switch e By pushing DISPLAY A For measurement frequency selection in MANUAL mode the SELECT button enables the modification of the numerical value blinking number The CHANGE button gt only modifies the user defined freque
49. erature When Charging 14 to 104 F 10 to 40 C 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 22 Ground Resistance Tester Model 6470 4 1 CHAPTER 4 OPERATION Instrument Configuration SET UP mode This function is used to change the instrument s configuration by direct access to the parameters to be modified 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 message appears on the display The various parameters are accessible by pressing the corresponding but ton see table below The number or symbol which can be modified flashes These are changed using the arrow buttons A WP which are also referred to as SELECT 4 Y and CHANGE gt buttons throughout the manual To move to another parameter to configure press either the DISPLAY Hz OPTIONS or MEM button see table below To exit the set up configuration turn the rotary switch to another posi tion All of the parameters that are modified are permanently saved until a new instrument configuration is performed Pa
50. est results and print out reports of any test The ability to view and store real time data DataView software is a copyright of Chauvin Arnoux Inc d b a AEMC Instruments Ground Resistance Tester Model 6470 55 5 2 Features DataView has a simple easy to use interface for configuring and running tests as well as printing reports of the test results There are many features that are available through this program A few of the most popular are listed below Key Features e Runs tests from your computer with a simple click and execute process e Views and captures data in real time e Retrieves data from the instrument s memory e Plots graphs of recorded information that has been downloaded e Presents reports including your analysis in the comments section e Stores a library of setups on your PC for different applications e Provides consistency in testing regardless of who performs the test NOTE For additional help on using the software use DataView s Help Menu which is located on the menu bar 5 3 Installing DataView AN INSTALL DATAVIEW BEFORE INSTALLING THE USB DRIVERS AND BEFORE CONNECTING THE INSTRUMENT TO THE COMPUTER Minimum Computer Requirements e Windows 2000 XP Vista with a CD ROM drive e 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 INSTALLATION NOTE When instal
51. he Instrument menu of the Control Panel If no connection was previously established the Communication dialog box will appear allowing you to select the Communication Rate baud rate and Port for communicating with the 6470 x Corer TS a Communication Rate 38800 z Cancel Bus Access 1 Help J 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 3 Once the proper communication parameters have been specified click on OK NOTE The communication rate needs to be the same as the instrument Select Set up from the rotary switch to check the rate When a communication link is established DataView will automatically identify the instrument that it is connected to Te me et Te m Fee eno rf arte Lotte Fe r T new teese twas ead om a Figure 5 7 62 Ground Resistance Tester Model 6470 A status screen will then appear showing e A toolbar at the top of the screen with the range selection and start stop buttons The status of the instrument on the left hand side e If DataView is connected to the instrument e The communications port and speed of the connection The model number serial number and firmware version e Date and time from the clock e The Configuration window which shows all of the parameters available for modification This window defaults to the instrument range that is selec
52. he MR button Once a record is recalled into the display the DISPLAY button selects all available data For resistivity measurement if several distances have been used and stored under the same OBJ TEST the different results can be recalled using the DISTANCE button in a rolling mode If earth coupling results are shown when recalled 4 blinking Me corresponding intermediate measurements can be seen on the display using the W button with 1 2 or 3 blinking respectively in a rolling mode In the DISPLAY queue the recording time and date is shown right after the first screen Another OBJ TEST and DISTANCE record number in earth coupling can be re called by modifying the OBJ TEST and DISTANCE values 4 10 Erasing Measurements from Memory 4 10 1 Erasing All Measurements Push once on the MEM button e The A2 display will show the number of free records The A3 display will show the number of available records Push a second time on the MEM button e The display will show dELete ALL records Select either NO or YES with the gt button AN NOTE If YES is selected all saved measurements will be deleted Ground Resistance Tester Model 6470 53 4 10 2 Erasing Selected Measurements 54 Hold down the 2 button then press the MR button The A1 display will show the main result in A2 the OBJ TEST number and if necessary in A3 the DISTANCE g In this state the DISPLAY button steps through the re
53. 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 re port generation and system configuration Ground Resistance Tester Model 6470 2 3 Control Features Aen m sx10710 000 Pw EARTH COUPLING 1 2 3 4 0K ALL lt s gt PR Plo a paa bod Bad DO DOr j BSB Vam s Vam a am s am kOft 7 tp ALARM SOE 7 an oe DC A on hao EELEE A iv are To hhh i Ea 8 886 AEB ane MEMMR CONFIG MANUALAUTO SWEEP EN a gt MEM Hz opTions DO OO DISSA START STOP SMOOTH GROUND TESTER MODEL 6470 Figure 2 1 Backlit LCD Display see 2 4 Battery charging connector Input terminal H Z auxiliary electrode Input terminal S Y auxiliary electrode Input terminal ES Xv auxiliary electrode Input terminal E X grounding electrode under test Six program fu
54. istance Tester Model 6470 25 4 3 General Operating Rules NOTE For detailed information regarding ground resistance testing see the Un derstanding Ground Resistance Testing Workbook CD that was included with the instrument Select the desired function using the main rotary switch There are 3 distinguished active states State 1 Before a functional measurement e g after the power is turned on the switch position is changed or when there is a modification to the settings State 2 During a functional measurement State 3 After a functional measurement ends with results In State 1 the initial display state presents the main measurement parameters with bars instead of digits External voltages when existing are selected by the DISPLAY button The difference between State 1 and 3 are the available measurement results The length of the chain accessed by the DISPLAY button depends on the function and the duration of the START STOP button AN NOTE In State 1 and 3 the Hz opTions button is active If any result exists in State 3 it will be erased if modifications of the set tings are made Press the MEM button to save the last test Therefore if there are modifications to a parameter made while in State 3 a push on the Hz oPTions button changes the instrument into State 1 The same result occurs if the main rotary switch is moved Pressing the START STOP button causes the instrument to enter State 2
55. istance Tester Model 6470 37 State 1 DISPLAY button in AUTO and MANUAL Mode before the measurement Initial First Push Second Push Third Push Fourth Push Al Re Q AC A1 R_eE Q AC Al Re_e Q AC A2 Ry Q A2 U our 32 V A2 U se A2 Uy A2 Ry O A3 Rs Q A3 Hz A3 Hz A3 Hz A3 Rg Q 1 A2 and A3 shows the disturbance RMS signal between H Z and E X or S Y and E X inputs and its fundamental frequency State 2 DISPLAY button in AUTO and MANUAL mode during the measurement DISPLAY button after a short START push No effect DISPLAY button after a long START push Initial First Push Second Push Third Push Al R Q AC Al R Q AC Al R Q AC Al R Q AC A2 Ry Q A2 Une V A2 Use V A2 Ry Q A38 Rs Q A3 F_Hz A3 we A3 Rs5 Q State 3 DISPLAY Button in AUTO and MANUAL Mode after the measurement DISPLAY button after a short START push Initial Optional Push Optional Push A1 R_EXXXQ AC A2 Use V A2 Use NOISE A2 Une NOISE A3 ne XXX MA A3 Hz 1 A3 F Hz 1 First Push Second Push Third Push Al R XXXQ AC A2 U S E A2 U H E A2 U S E V A3 Hz 2 A3 F Hz 2 A3 ue XXX MA 38 Ground Resistance Tester Model 6470 DISPLAY button after a long START push Initial First Push Second Push Optional Push Al R XXXQ AC A1 R XXX Q AC Al R XXXQ AC A2 R u XXX Q A2 U we XXXV A2 U s V A2 U s NOISE A3 R sXX
56. lectrodes are moved for each reading this method can be more susceptible to near surface lateral and variations in resistiv ity These near surface lateral variations could potentially be misinter preted in terms of depth variations in resistivity In general interpretations based on DC soundings will be limited to simple horizontal layered structure 46 Source DC Resistivity T Boyd Ground Resistance Tester Model 6470 4 7 2 Measuring Soil Resistivity 4 Pole 4 Point Resistivity measurement can only be performed in MANUAL mode The instrument configurations that can be set for this measurement are the test method voltage and frequency 1st Push W ENNER S CHLUMBERGER XXX modified with CHANGE button 2nd Push 128 119 110 92 55Hz UsrXXX 128Hz per default 3rd Push 32V 16V 4th Push Cr Figure 4 6 Wenner Method Pw 2 xIx dx R es Schlumberger Method ps II x d A 4 A x Re cg Ground Resistance Tester Model 6470 47 e Turn the rotary switch to 4 Pole MANUAL will be displayed at the bottom of the LCD e Press the Hz opTIONs button and select either pS or pW with the gt button e Select the measurement frequency and voltage applied Press the START STOP button to measure Fast measurement pressed briefly the START STOP button triggers the resis tance measurement RSES only Expert measurement pressed and
57. ling on a Windows 2000 XP or Vista system the user must have Administrative access rights during the installa tion User s access rights can be changed after the installation is complete The user does not need administrative rights when using DataView For Vista there is a single operation option Privilege Elevation of User Account Control available to the Administrator The Administrator types the password and permits the installation This process will not work since the templates will not be installed 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 Windows 2000 XP and Vista 56 Ground Resistance Tester Model 6470 h Insert the DataView CD into your CD ROM drive If auto run is enabled the Setup program will start automatically If auto run is not enabled select Run from the Start menu and type in D SETUP if your CD ROM drive is drive D If this is not the case substitute the appropriate drive letter NOTE If installing onto a Vista based computer the User Account Control dialog box will be displayed Select the Allow option to proceed 2 A Set up window similar to the one below will appear Ew Selaci an oper hom Ihe fet below then select tthe Inetall bulton Options Descripton instal the Engish vernon of Dataview onto the computest Abe Rossa This version of Dataview suppots
58. ly available for soil resistivity measurements It allows the setting of values of distances used for Rho p calculation It is accessible in States 1 and 3 only see 2 5 6 Ground Resistance Tester Model 6470 15 CHAPTER 3 SPECIFICATIONS 3 1 Reference Conditions Influencing Parameters Reference Values Temperature 23 C 3 K Relative Humidity 45 to 55 RH Supply Voltage 10V 0 3V Frequency Range DC and 15 3 to 450Hz Capacitance Parallel to Input Resistance 0 uF Electric Field lt 1V m Magnetic Field lt 40 A m 3 2 Electrical NOTE Accuracy is stated in two fashions to comply with recent IEC mandates e Nominal corresponds to the instrument accuracy as calibrated at the factory and within a calibration environment e Field corresponds to a worse case in the field as the instrument is sub jected to environment and or settings 3 2 1 Voltage Measurement External Voltage Measurement Range Resolution Accuracy Impedance Frequency Nominal 0 10 to 9 99V 0 01V 2 of Reading 3cts DC and 15 to 450Hz Field Auto recognition of 10 0 to 65V 5 of Reading 5cts AC above 0 1 Veff 3 2 2 Frequency Measurement Measurement Range Resolution Signal Range Accuracy Nominal 1 of Reading 2ct 16 to 450Hz 1Hz 0 1 to 65V i n 1 of Reading 2cts 16 Ground Resistance Tester Model 6470 3 2 3 Bond Resistance Continuity Measurement mQ postition
59. ment arrives it will be tracked and processed promptly Please write the CSA on the outside of the shipping container If the instrument is returned for calibration we need to know if you want a standard calibration or a calibration traceable to N I S T Includes calibration certificate plus recorded calibration data Ship To Chauvin Arnoux Inc d b a AEMC Instruments 15 Faraday Drive Dover NH 03820 USA Phone 800 945 2362 Ext 360 603 749 6434 Ext 360 Fax 603 742 2346 or 603 749 6309 E mail repair aemc com Or contact your authorized distributor Costs for repair standard calibration and calibration traceable to N I S T are available NOTE You must obtain a CSA before returning any instrument Technical and Sales Assistance If you are experiencing any technical problems or require any assistance with the proper operation or application of your instrument please call mail fax or e mail our technical support team Chauvin Arnoux 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 Ground Resistance Tester Model 6470 71 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 w
60. ncies using the table contained in the instrument 36 Ground Resistance Tester Model 6470 Hz OPTIONS and SELECT buttons State 1 and State 3 1st Push AUTO MANUAL 2nd Push 32V 16V earth with 128Hz earth coupling with 128Hz XXX modified with CHANGE button er D 3rd Push Ce 41 55 92 110 119 128 476Hz USrXXX Hz 4th Push 32V 16V 5th Push Cex Figure 4 4 HZ OPTIONS and SELECT buttons in state 1 or 3 in AC 3 Pole function Usr means variable frequency selection by the User A State 2 Hz OPTIONS and SELECT V Button during the measurement In AUTO mode Enables frequency changing which sets the instrument into MAN UAL mode The default frequency is 128Hz In MANUAL mode First push on HZ OPTIONS button switches the display to the following panel with frequency blinking A Frequency can be changed using the SELECT YW button for predefined values and also in the case of a user frequency Usr change with the CHANGE gt button for any value out of a table in XXX Hz First push Second push Al R Q AC Al R Q AC A2 U n e XXX V A2 U n e XXX V A3 XXX Hz modification with edit keys A3 XXX Hz Second push on HZ OPTIONS button the display does not change but the blinking frequency is then stable Pushing the DISPLAY button stores the last frequency value and moves the dis play indication to the initial state Ground Res
61. nction buttons see 2 5 Optical interface connector for connection to a computer Range selection switch oC oO NOP OF LY DN Start Stop button Ground Resistance Tester Model 6470 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 Backlight The backlight turns ON automatically when entering a function and turns OFF after the function is complete Press the DISPLAY button to turn it back on NOTE In the Set up mode Instrument Configuration 4 1 pressing the DISPLAY button also selects the next configurable parameter The symbols that can appear are shown in Figure 2 2 and are detailed here en ii x10 10 000 Pw EARTH COUPLING 1234 OK ALL s AS a cee i Ua wn kOft ALARM OBJ TEST ik SC CL ye A2 0 OAT kot Bn EREL NOISE DISTAN Pata ee R SOOO A3 gag k CED Kc KON EMMR CONFIG MANUALAUTO SWEEP EEJ Figure 2 2 Al Top main display A2 Middle small display A3 Bottom small display Warning buzzer is activated COM Communication port active Indicates the battery charge condition the segments represent the energy Indicates that the secondary function of a button will be used gt ple gl2 External voltage present this sym
62. ngs per second Long START push 15s for the first value of RE at 128Hz then 3 readings per second Probe Resistance Ru Rs 100kQ max Measuring Error of Auxiliary Rods RH and Rs 10 2cts at 128Hz Automatic range switching and resolution changes are dependency of RH and measurement voltage Ground Earth Resistance RE Range Resolution Accuracy 0 01 to 9 990 0 012 Nominal 10 0 to 99 90 0 19 9 ing 100 0 to 999 90 10 o ae Fi ou 1 00 to 9 99kQ 100 See Ta chart 10 00 to 99 9kQ 100Q With the following reference conditions frequency measurement 128Hz voltage measure ment 32V RH Rs 0Q no voltage disturbance Operating Conditions Accuracy on RE RH and or RS lt 20kQ RH RE and or RS RE lt 5000 Test frequency 41 to 300Hz No disturbance voltage or Disturbance voltage lt 60V peak with f meas f dist f meas gt 0 2 RH and or RS lt 100ko2 RH RE and or RS RE lt 20 000 Test frequency 41 to 150Hz No disturbance voltage or Disturbance voltage lt 60V peak with f meas f dist f meas gt 0 2 RH and or RS lt 20kQ RH RE and or RS RE lt 1000 Test frequency 300 to 500Hz No disturbance voltage or Disturbance voltage lt 60V peak with f meas f dist f meas gt 0 2 5 of Reading 2ct 20 of Reading 3ct 10 of Reading ict 18 Ground Resistance Tester Model 6470 Auxiliary Ground Electrodes Rods Resistances
63. not fully discharged Respect for the environment no pollutant materials such as lead or cadmium in compliance with the applicable regulations After prolonged storage the battery may be completely discharged If so it must be completely recharged Your instrument may not function during part of this recharging operation Full recharging of a completely discharged battery may take several hours AN NOTE In this case at least 5 charge discharge cycles will be necessary for your battery to recover 95 of its capacity To make the best possible use of your battery and extend its effective service life e Only use the charger supplied with your instrument Use of another charger may be dangerous e Only charge your instrument at temperatures between 0 and 40 C e Comply with the conditions of use defined in the operating manual e Comply with the storage conditions specified in the operating manual NiMH technology allows a limited number of charge discharge cycles depending significantly on e The conditions of use e The charging conditions 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 D4 gt Table of Contents INTRODUCTION 0 0cccsccesseeesseecsneeesseeessneeseeeeenseensneeesseeesneesnseeenaa 4 1 1 I
64. nternational Electrical Symbols 00 eee eeeeeeeeeeeeeeneeeeeeeeeesaeeeeeaas 5 1 2 Definition of Measurement Categories ccccceceeeeeeeeeceeeeeeeneeeeees 5 1 3 Receiving Your ShHipMent c 2 ccceccceceseces cectececuncense ceed eueneedusteceescedeeetes 5 1 4 Ordering Information cec cece ccceece cece eeeeeeeceeeeseceeeeeeseseaeeeeeeennaeaeess 5 1 4 1 Kits Accessories and Replacement Parts eeee 6 PRODUCT FEATURES s cccsseessseeesseeesseeessneessseensneeenseeeserenseeeeae 7 2 1 Description minuri he eee ee ee eee i 7 2 2 Main Features roninas tn n a i teats 8 2 3 Control FOatures eseina aa eaan 9 PAT R DIE o i E E T A E 10 2 5 Button FUNCtiONS i iiion ee te decedebcedsdtneedendeteeest 12 2 5 1 START STOP Button ee eeeeeeeeeeeee entre eeeneeeeeeeeeneeeneaaes 12 225 2 a BUO eta erie GO deeiteatin eet weed 12 2 5 3 SELECT Button tisena naa ne 12 2 5 4 P CHANGE Button eiseeeiieeieeiinrirrrrrieeriirernenen 13 2 5 5 MEM MR Button cee ceecceeceeeeeceeeeeneeceeeeceaeeeeeeseeeestaeeeeeeens 13 2 5 6 DISPLAY SMOOTH Button 14 2 5 7 HZ OPTIONS DISTANCE Button cceeeceeceeeeeeeeeeeeeeeeeeeees 14 SPECIFICATIONS 2 0csseessseeesseenseessseeeeseeesseeessnensneeesseeeneeensneess 16 3 1 Reference Conditions vs csiececccpeoctessds cut gedbgevesccauere dese coselanechcondertnees 16 3 2 LOC Gal mosti ansaan sd ong saceeubcute aaea pratapa o aea ariaa Thode 16
65. o charging modes e Fast Charging Mode battery recovers 90 of its capacity in approximately 3 hours e Slow Charging Mode this mode is initiated if the battery is at a very low state 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 When the instrument is used while charging the battery current and charging time depend on the power consumption of the instrument somewhere between quick charge and trickle charge If the rotary switch is set to the OFF position while the battery is being charged the Bat chrg message is displayed if the unit is performing a fast charge and the battery level symbol flashes The Bat Full message is displayed once the battery is fully recharged The number of charging cycles is at least 500 before it is necessary to change the battery see 3 2 7 for battery life specifications New battery packs Cat 2960 21 can be purchased directly on the AEMC Storefront www aemc com When replacing the battery the following safety instructions must be re spected e Never cause a short circuit between the batteries positive and negative pole Do not disassemble pack and cells Do not incinerate or overheat Do not clean wi
66. odify the number Press the A Y button to change digit If there is no distance set the value of Rho is and the Rs cs indicates the measured value Storing several measurements with the same OBJ TEST in Schlumberger method additionally distance A number but with different DISTANCES of d are assumed to belong together The application software will collect the records and document the results in a graph Resistivity as a function of distance d When the DISTANCE button is pressed the display shows WENNER method First Push Second Push Third Push A1 py QM A1 py Qm A1 py QM A2 Ro s Q A2 Rg pg gt Q A2 Re pg 77 gt Q A3 d 001 0 m blinking of A3 d 001 0 m stops A3 d 001 0 m blinking of the most significant digit blinking the most significant digit A SELECT Vv moves the blinking digit the last two digits are accessed together CHANGE P moves the value up and down Ground Resistance Tester Model 6470 51 SCHLUMBERGER method First Push Second Push Third Push Fourth Push Al p Om Al p Om Al p Om Al p Om A2 A 001 0 m A2 A 001 0 m A2 A 001 0 m A2 A 001 0 m blinking of the most stops blinking stops blinking blinking of the most significant digit A3 d 020 0 m A3 d 020 0 m significant digit A3 d 020 0 m blinking of the most stops blinking A3 d 020 0 m significant digit A SELECT Y moves the blinking digit the last two
67. oltage or an AC voltage gt 42V eff the measurement is cancelled A compensation measurement erases previous measurement results The START button is always active Ground Resistance Tester Model 6470 33 4 5 Ground Resistance Measurement 3 Pole 3 Point The Model 6470 measures the ground resistance of an electrical installation One terminal E X is connected to the ground under test Two other terminals S Y and H Z are connected to two auxiliary rods some distance away NOTE It is important that the auxiliary rods be sufficiently far away to not inter fere in the measurement If the rods are too close the reading will be too low If the rods are too far away the readings will be too high The actual resistance of the auxiliary rods also may affect the measurements if they are too high High resistance actually comes from poor or very dry soil To have a good measurement the instrument needs to 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 gt 200mA max The test voltage is set to 32V when it leaves the factory and may be lowered to 16V by the user The Model 6470 can also measure the resistance of the auxiliary rods The nominal test frequency is 128Hz Square Wave which is typical for ground testers In certain cases measurements at nominal test frequency may be affected by st
68. ource electrodes in Schlumberger method or distance d of all electrodes in Wenner method influ ences the displayed value of p If no distance is set Rss is displayed If the distance is set the variable distance value is another storage parameter and all subsequent measurements use the same voltage and frequency except the dis tance Therefore the HZ OPTIONS button is locked after the first stored measure ment A new distance is set with the DISTANCE and arrow buttons Each distance is combined with the available measurement results When storing the instrument always takes the last measurement into account and overwrites previous mea sured records with the same distance 52 Ground Resistance Tester Model 6470 The memory capacity of the instrument is 64kB which allows 512 records to be stored independent of the function 4 9 Recalling Measurements from Memory All records contain date and time information e Pushing the recall MR button 2nd MEM causes the instrument to display the highest available OBJ and TEST number in A2 together with the main result in A1 and frequency in A3 e Use the arrow buttons to modify the OBJ TEST number to select the desired record e A second push to MR exits the recall mode In functions like earth coupling or resistivity where more than one record belong to gether the highest used OBJ TEST and DISTANCE or record number 4 in earth coupling will always be accessed by pushing t
69. perator Information Site Information Company PEZE Company AEMC Operator Sales Contact Tech Support Address 200 Foxborough Blvd Address 15 Faraday Drive City Foxborough City Dover State MA ZIP 02035 State NH ZIP 03820 Phone 508 698 2115 Phone 800 343 1391 Fax Fax 508 698 2118 e mail sales aemc com TechInfo aeme com Comments Cancel Make Default Figure 5 11 After filling in the appropriate information close the Session Properties dialog box by clicking on the X at the top right hand corner 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 Awindow named Step 2 Specify Database s will appear The file just saved and named should be visible To generate a report click the OK button To print this report either click on the Print icon or click on File from the top menu and then Print This completes the process of configuring running retrieving data and printing a report using DataView with your Model 6470 AN In addition to the pre designed report templates DataView allows you to totally configure reports to your needs Refer to the DataView HELP file on Tem plates to learn more about templa
70. plied if desired The earth coupling calculation requires three successive ground resistance mea surements to be performed and stored one by one First measurement 3 Pole 3 Point earth measurement that will give R Ra Re with R first ground earth resistance Rc coupling resistance between R and R Second measurement 3 Pole 3 Point earth measurement that will give R Rb Re with R second ground earth resistance Rc coupling resistance between R and R 40 Ground Resistance Tester Model 6470 Third measurement 2 Pole 2 Point earth measurement that will give R Ra Rb For this measure ment it is possible to compensate the resistance of the cables Fourth record Contains all coupling results calculated from measurement 1 to 3 This is done automatically after storage from third measurement From R R R the instrument will calculate Ra Rb Rc coupling resistor and C coupling factor with C1 Re R and C2 Re R NOTE Each result has to be stored before the start of the next measurement takes place After each measurement MEM is shown and blinking on the display indicating that the user has to store the results before going to the next step The results are stored under the same OBJ TEST number that has been select ed after the first measurement no selection is possible after storage of the first measurement The three different measurements are distinguished by the sample
71. r Resistivity Measurement If more than one measurement belongs to an OBJ TEST number it is possible to modify the DISTANCE to select each measurement The stored records with different distances are selected with the arrow buttons DISPLAY scrolls through all results MR for Earth Coupling Measurement If MR shows a coupling record measurement under OBJ TEST address then it is the 4th record of that measurement that represents the earth coupling value Other results can be obtained with the selection of 1 2 3 or 4 by using the arrow buttons To exit move the main switch or press the MR button Ground Resistance Tester Model 6470 13 2 5 6 DISPLAY SMOOTH Button DISPLAY The DISPLAY function switches between accessible results depending on the main rotary switch position The information displayed depends on the state of the instrument State 1 before a measurement starts State 2 during a functional measurement State 3 after a functional measurement In all Functions except SET UP External voltage measurement is possible in State 1 and 3 The external voltage measurement runs permanently if the DISPLAY button is pushed The values are always indicated in the small numeric displays A2 and A3 see 2 4 while the main numeric display is empty SMOOTH To get a more stable display result it is possible to smooth the measurement by pushing and holding down the 2 button then the SMOOTH button during a measurement Displ
72. rameter to be modified Button Possible values Default values Distance unit DISPLAY 1 press m meter or ft feet m Alarm for mQ and 2 wire DISPLAY 2 press ON OFF OFF measurements only direction lt or gt gt value 1 to 999Q 20 Buzzer DISPLAY 3 press ON OFF ON Modbus address DISPLAY 4 press 1 to 247 1 Date Hz OPTIONS 1 press yyyy mm dd Current date Time Hz OPTIONS 2 press hh mm Current time Baud Hz OPTIONS 3 press 9 6k 19 2k 38 4k 9 6 k bits Default configuration Hz OPTIONS 4 press yes no yes Memory used MEM 1 press 000 to 512 total 000 on 512 number of locations International format date and time only Ground Resistance Tester Model 6470 23 Checking the Display To freeze all of the display segments to check that the display is operating cor rectly press and hold the DISPLAY button while you rotate the switch to SET UP The information will remain on the display until the DISPLAY button is pressed again The display will then enter SET UP mode see previous page Checking the ID Number and Software Version To display the instrument ID number and software version number press and hold the HZ OPTIONS button while you rotate the switch to SET UP The information will remain on the display until the DISPLAY button is pressed The display will then enter SET UP mode see previous page 4 2 Operation Mode AUTO MANUAL mode possibilities Function
73. ray signals in the ground The Model 6470 automatically scans the stray volt age noise and internally selects the best test frequency between 41Hz 55Hz 92Hz 110Hz 119Hz 128Hz 476Hz for the optimum measurement For advanced users the test frequency can be manually selected between 41Hz and 513Hz Details on ground resistance measurements and rod distances are available in the AEMC Understanding Ground Resistance Testing Workbook CD that was included with the instrument Please note that the AEMC ground kits include color coded leads which match the terminals to facilitate connections and to ensure that adequate test lead lengths are provided 34 Ground Resistance Tester Model 6470 4 5 1 Measuring Ground Resistance A 2 2 Y Re X m gt 30m gt lt gt 30m gt gt Figure 4 3 Connect the test leads to the terminals color coded Turn the rotary switch to 3 Pole AUTO or MANUAL will be displayed at the bottom of the LCD To change the configuration use the Hz oPTIONS and P buttons other wise proceed with the test Configurable parameters are test voltage mea surement test frequency and access to Earth Coupling 4 6 test function The instrument automatically measures the ground voltage and noise be tween S and E Us E and between H and E UH E and the associated fre quencies The instrument will perform a voltage check see 4 2 1 Press the
74. st of the records result This queue is extended by the time and date information which is shown by the first DISPLAY push When the desired measurement to erase is displayed press a second time on the 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 Ground Resistance Tester Model 6470 CHAPTER 5 DATAVIEW SOFTWARE 5 1 Introduction The DataView graphing and analysis program is a full function Windows based application software package It provides you the ability to configure and run any test or recording from the com puter as you can from the instrument itself Additionally it enhances the information captured for snapshots as it captures all the information to display and report data in real time DataView includes several pre defined templates for displaying and printing re ports as well as the ability to totally customize the reports to meet your exact needs This chapter will give you the information you need to know to use this program More extensive information on specific functions available in DataView is avail able in the online help system included with the 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 t
75. ted If the indicated items are not shown on the screen select Restore Default Layout from the Window menu 5 7 1 Configuration Functions The buttons described below appear on several DataView Setup Screens e Load from File Retrieves a saved file from the computer s disk drive to be used in programming the instrument e Save to File Saves the current configuration This file will reside on the computer s disk drive Saving different configuration setups can be useful for future functions and tests e OK Closes the dialog boxes and brings up the control panel e Cancel Exits without saving configuration e Buzzer Enabled When selected buzzer is ON e Set Instrument Clock Updates the clock to the PC clock e Drop down Indicators Indicates the configuration available for each mea surement range 5 7 2 DC Continuity Test When DC Continuity is selected from the tool bar you can Select a 2 or 4 Wire test Select a current test positive negative or Auto Enter and activate an alarm from 1 to 999Q 2 Wire only if desired 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 Ground Resistance Tester Model 6470 63 5 7 3 3 Pole Ground Resistance Test When 3 Pole Ground Resistance is selected from the tool bar you can select With or without Auxiliary Rod Resistance e Test voltage of 16 or 32
76. ter Model 6470 5 Ground Resistance Tester Model 6470 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 product warranty and registration card and user manual Ground Resistance Tester Model 6470 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 product warranty and registration card and user manual 1 4 1 Kits Accessories and Replacement Parts Test Kit for 3 Pole 3 Point Testing 150 ft ee 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 carrying bag Test Kit for 4 Pole 4 Point Testing 300 ft
77. tes Ground Resistance Tester Model 6470 67 CHAPTER 6 MAINTENANCE 6 1 Maintenance Please make sure that you have already read and fully understand the WARNING section on page 3 e To avoid electrical shock do not attempt to perform any servicing unless you are qualified to do so e To avoid electrical shock and or damage to the instrument do not get water or other foreign agents into the case e Turn the instrument OFF and disconnect the unit from all circuits before opening the case e Use specified spare parts only 6 2 Power Supply and Recharging The instrument is shipped with an internal rechargeable NiMH battery pack The battery can be internally recharged in two fashions e AC Line Voltage 100V 240V AC 50 60Hz with a power supply adapter 18V 1 5ADc e DC Source vehicle powered 9 13VDc power supply adapter 18V 1 5ADc 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 Low Battery e When the battery is fully discharged no battery indication is given on the screen at power up e When the battery level is low the battery symbol indicates the battery charge level and the Bat Low message is displayed 68 Ground Resistance Tester Model 6470 Battery Charging The Model 6470 has tw
78. th water or corrosive agents e Never use a leaking or externally damaged pack e Collect used packs for recycling to protect environment AN NOTE If the instrument is not used for long periods of time more than 6 months it is recommended in order to recover the initial capacity of the battery to make several charge discharge cycles 3 to 5 times Discharge cycle 15 H can be made with the instrument in MANUAL mode DC 2 Pole 2 Point resistance mea surement and a short circuit between H Z and E X plugs Ground Resistance Tester Model 6470 69 APPENDIX A TROUBLESHOOTING ERROR LISTINGS There are some tests made when the instrument is switched on Generally if an error occurs which can be removed by overwriting default values it is done auto matically and an error code is given to the user This message lasts until the rotary switch is moved If an error occurs that means service support is necessary the error stays on the display and the instrument is out of order Three types of errors are managed on the instrument e Fatal error Error state until power off service is needed at once if the failure does not disappear e Recoverable error Error state until rotary switch change instrument can be used but unit should be serviced if the failure occurs repeatedly e Harmless error Error message displayed for 1 sec only for information but unit should be serviced if the failure occurs repeatedly
79. the follow inatruments Mei N owes Saltese Upetotirs Digtal Mubimeter Model MTXI201 MTXI202 MTXI3203 Fermeme Upg aches Ground Tester Model 6470 and 6472 Documents Megohmemete Model 1052 SED and SOM Mero Oheemeter Model 6240 and 6250 Powe Moter Medai R220 Powe Quality Loggat Model POL100 and POL 1209 PowretPad Model IHS and 3545 0 PowedPad Jr Model 8230 Sentinel Data Logger Simple Logger Il Figure 5 1 There are several different options to choose from Some options require an internet connection e DataView Version 2 xx xxxx Installs DataView onto the PC e Adobe Reader Links to the Adobe website to download the most recent version of Adobe Reader to the computer Adobe Reader is required for viewing PDF documents supplied with DataView that are accessible from the Help menu e MetaViewer 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 e Firmware Upgrades Links to the AEMC Firmware Upgrade website to check for new firmware version releases Ground Resistance Tester Model 6470 57 x ao Aa 9D ma Documents Shows a list of instrument related documents that you can view Adobe Reader is required for viewing PDF documents supplied with DataView
80. trument is in MANUAL mode and will perform a 2 Pole measure ment To change the configuration before making the measurement use the HZ OPTIONS and gt buttons to Select the measurement mode MANUAL or AUTO Select the number of wires for the measurement 2 or 4 Wire In MANUAL mode select the measurement current polarity 28 Ground Resistance Tester Model 6470 4 4 2 Lead Compensation Measurement 2 Wire Mode Only Compensation mode is used to compensate the leads resistance in 2 Wire mea surement and is possible in MANUAL or AUTO mode In State 2 during a measurement lead compensation is not possible Short circuit the measurement leads e Start the measurement by pressing the 2nd button and then the START button e This measurement stops after having received a stable result The symbol appears on the display after the compensation value has been measured All subsequent measurements with 2 Wire will then use this compen sation 2 Wire DC 2 Wire AC in earth coupling Compensation is used until the instrument is switched off or the compensation value is erased NOTE If the compensation resistance is gt 5Q or in the event that the leads are not shorted when starting the measurement the value of compensation will be canceled and the L symbol will disappear 4 4 3 Measurement and Results At the start of the measurement e The instrument measures UH E 2 Wire measurement or Us ES and U
81. ty Repairs sisiimsireee noat iaaea aaia pi N aiaei en 72 CHAPTER 1 INTRODUCTION AN WARNING It should be impressed on all personnel that a lethal potential can exist between the station ground and a remote ground if a system fault involving the station ground occurs while tests are being made Since one of the objects of tests on a station ground is the establishment of the location of an effectively remote point for both current and potential electrodes the leads to the electrodes must be treated as though a possible potential could exist between these test leads and any point on the station ground grid excerpted from IEEE Std 81 1962 These safety warnings are provided to ensure the safety of personnel and proper operation of the instrument e Safety is the responsibility of the operator All metal objects or wires connected to the electrical system should be assumed to be lethal until tested Grounding systems are no exception Comply with the conditions for use temperature humidity altitude pollution level and place of use This instrument can be used on Category IV installations for maxi mum differential voltages of 50Vrms across terminals and across the various terminals and earth see EN 61010 1 and IEC 61557 Use only connection accessories with overvoltage and working voltage category greater than or equal to that of the measurement instrument Use only accessories complying with safety standards
82. urself against in transit loss we recommend you insure your returned material NOTE You must obtain a CSA before returning any instrument 72 Ground Resistance Tester Model 6470 GJ AEMG INSTRUMENTS 08 08 99 MAN 100298 v10 Chauvin Arnoux Inc d b a AEMC Instruments 15 Faraday Drive Dover NH 03820 USA Phone 603 749 6434 Fax 603 742 2346 www aemc com
83. value speed at a faster rate 12 Ground Resistance Tester Model 6470 2 5 4 CHANGE Button Selects the parameter to be modified to the right or moves the cursor to the right 2 5 5 MEM MR Button MEM Memory The MEM button is used to store measurements into memory to an address identi fied by an object number OBJ and a test number TEST The instrument has a memory capacity of 64kB which represents 512 records whatever the function chosen A single object OBJ can contain 99 tests Two presses on this button are required e First Press to select the location use the A and buttons to change the location Second Press to store the measurement The resistivity and earth coupling functions have an extended location with DIS TANCE values or measurements 1 to 4 in coupling function Several tests with the same OBJ TEST number but with different distances 1 to 4 in coupling can be stored MR Memory Recall The MR button is used to retrieve stored data Hold down the 2 button then press the MR button to access this function In the SET UP position all recorded data of all measurement functions are ac cessible When the MR button is pushed the display shows the highest available stored OBJ TEST address together with the main result in the big display The OBJ TEST address in A2 see 2 4 can be modified with the arrow buttons AN NOTE The following functions have special requirements MR fo
84. y starts the measurement If an external voltage fre quency appears on the inputs that influences the measurement value significantly a warning is given with the NOISE symbol on the display After the measurement is stopped the detected disturbance voltage applied with frequency can be seen using the DISPLAY button No access to disturbance voltages is possible during measurement When the START STOP button is pushed the display returns to the initial screen For DC 2 Wire resistance measurement and the AC 2 Wire measurement in the coupling function this button has a second function which allows measurement of lead resistances for compensation 2 5 2 2 Button Selects the second function highlighted in yellow on the buttons The EZ symbol appears This symbol disappears upon pressing the function but ton chosen except if the W button is activated In this case it only disappears when the 2 button is pressed again or if other function buttons are pressed This allows you to rapidly decrease parameters with the W button without having to press the 2 button every time 2 5 3 SELECT Button A Increases the value of the flashing parameter displayed or selects the next parameter up Press the button for a longer time to increase the change of value speed at a faster rate WY 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

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