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Ground Resistance Tester Model 6471

3.6 Environmental

Operating Temperature:

32° to 113°F (0° to 45°C); 0 to 90% RH

Specified Operating Temperature

(1)

:

0° to 95°F (0° to 35°C); 0 to 75% RH

Storage Temperature:

-40° to 158°F (-40° to 70°C); 0 to 90% RH

Altitude:

< 3000m

(1): This range corresponds to the one defined by standard EN 61557, for which an operating error including the
quantities of influence is defined. When the device is used outside this range, 1.5%/10°C and 1.5% between
75 and 90% RH must be added to the operating error.

3.7 Safety

Electromagnetic Compatibility

This instrument satisfies the EMC and LVD directives required for the CE marking

and product standard IEC 61326-1 (Ed. 97) + A1 (Ed. 98).

•

Immunity in industrial environment

•

Emissions in residential environment.

Electrical safety according to EN 61010-1 (Ed. 2 of 2001)

Measurement according to EN 61557 (Ed. 2 of 2007) parts 1, 4 and 5.

CAT IV, 50V

Pollution Degree 2

*Specifications are subject to change at any time without notice

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ShopAEMC

.com

Shop for AEMC products online at:

1.888.610.7664

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Содержание 6471

Страница 1: ... DIGITAL GROUND RESISTANCE AND SOIL RESISTIVITY TESTER E N G L I S H User Manual 6471 www ShopAEMC com Shop for AEMC products online at 1 888 610 7664 ...

Страница 2: ...btained 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 Serial _________________________________ Catalog _______________________________ Model 6471 Please fill in the appropriate date as indicated Date Received _____________________________...

Страница 3: ... 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 Only use the charger supplied with your instrument Use of another charger may be dangerous Only charge your instrument at temperatures between 0 and 40 C Comply with the conditions of use defined in the operati...

Страница 4: ... Reference Conditions 16 3 2 Electrical 16 3 2 1 Frequency Measurements 16 3 2 2 Voltage Measurements 16 3 2 3 Current Measurements 17 3 2 4 DC Resistance Measurements 18 3 2 5 AC Earth Ground Resistance Measurements 19 3 2 6 Soil Resistivity Measurement ρ 21 3 2 7 Earth Ground Measurements with 2 Clamps 22 3 3 Data Storage 22 3 4 Power 23 3 5 Mechanical 23 3 6 Environmental 24 3 7 Safety 24 4 OPE...

Страница 5: ...urement Method 39 5 6 3 Programming the Distance for Electrode Placement 39 5 6 4 Wenner Method 40 5 6 5 Schlumberger Method 41 5 7 Earth Ground Measurements with Two Clamps 43 6 MANUAL MODE 45 6 1 Switching the Test Voltage 45 6 2 Measurement Frequency Selection 45 6 3 Manual Settings for mΩ Measurements 46 6 3 1 Continuity Test 46 6 4 3 Pole Earth Ground Measurements Coupling 47 6 4 1 3 Pole Ear...

Страница 6: ...sistivity 63 8 4 6 Ground Loop R 64 8 5 Tools Menu 65 8 5 1 Tools Options 65 8 5 2 Tools Colors 66 8 5 3 Tools Recover Data 66 8 6 Starting a Test 66 8 7 Downloading Data to Database 66 8 7 1 Recordings 67 8 7 2 Session Properties 67 8 8 Saving Exporting Data to a Spreadsheet or PDF File 68 8 8 1 Saving Data to a Spreadsheet from the Control Panel 68 8 8 2 Exporting Data to a PDF from DataView 69 ...

Страница 7: ...isconnection 75 10 1 4 Out of Limits Indicators 76 10 1 5 Error Messages 78 APPENDIX A GLOSSARY OF TERMS 79 Basic Terminologies 79 Glossary 80 Limited Warranty 84 Warranty Repairs 84 www ShopAEMC com Shop for AEMC products online at 1 888 610 7664 ...

Страница 8: ...he specifications Do not use the instrument or its accessories if they appear damaged Use accessories that have overvoltage category and service voltages greater than or equal to those of the instrument CAT IV 50V Use only accessories that comply with safety standards IEC 61010 2 031 32 Wear the appropriate protective gear insulating boots and gloves Check that no terminal is connected and the swi...

Страница 9: ...directly connected to the electri cal distribution system Examples are measurements on household appli ances or portable tools CAT III For measurements performed in the building installation at the distribu tion level such as on hardwired equipment in fixed installation and circuit breakers CAT IV For measurements performed at the primary electrical supply 1000V such as on primary overcurrent prot...

Страница 10: ...ectrodes set of five spaded lugs and one 100 ft tape measure Test Kit for 4 Pole 4 Point Testing 300 ft Cat 2135 36 Includes carrying bag two 300 ft color coded leads on spools red blue two 100 ft color coded leads hand tied green black two 5 ft color coded leads red blue four T shaped auxiliary ground electrodes set of five spaded lugs and one 100 ft tape measure Test Kit for 4 Pole 4 Point Testi...

Страница 11: ... set of 5 0 63A 250V 5x10 1 5kA Cat 2135 81 Safety Alligator Clip Black Rated 600V CAT IV 10A Cat 2140 53 Safety Alligator Clip Green Rated 600V CAT IV 10A Cat 2140 69 Replacement Battery Rechargeable NiMH 9 6V Cat 2960 21 Replacement Power Adapter 110 240V Power Cord 115V US Cat 5000 13 Replacement Power Cord 115V US Plug Cat 5000 14 www ShopAEMC com Shop for AEMC products online at 1 888 610 766...

Страница 12: ...is CAT IV rated to 50V and is over voltage protected to more than 250VAC against accidental connection to live circuits The voltage is also displayed on screen In the event of a system fault the Model 6471 can withstand 250VAC Additional features of the Model 6471 include a heavy duty field case sealed against dust and water when closed the test button is also sealed against the elements manual an...

Страница 13: ...ents 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 Rechargeable NiMH batteries from wall charger or vehicle po...

Страница 14: ...ps S Y will take a shielded cable 2 Connector for charging the battery see 9 4 3 256 segment multi line backlit LCD see 2 4 4 Connector for an optical interface to a PC Either an RS 232 or USB connec tion can be used see 8 DataView 5 Rotary switch OFF position 5 measurement functions see 5 and 6 and SET UP function see 4 2 6 START STOP button Starts the measurement and compensates for the leads in...

Страница 15: ...o turn it back on NOTE In the Set up mode pressing the DISPLAY button also selects the next configurable parameter A1 A2 A3 Figure 2 2 A1 Top main display A2 Middle small display A3 Bottom small display If this symbol blinks during a passive measurement a voltage of more than 42V is present at the tester s inputs If this symbol blinks during an active measurement the limits of use have been exceed...

Страница 16: ...ve DISTANCE If blinking indicates the value is ready to be overwritten with a new value or that a new value will be entered If more than one value has to be entered use the CHANGE buttons to move to the next one FREQUENCY Indicates the test frequency Indicates that the secondary function of a button will be used SWEEP Symbol not used in Model 6471 MANUAL Indicates MANUAL mode the user has to stop ...

Страница 17: ...ions START STOP Starts a measurement and compensates for lead resistance 5 2 1 Measurement stops automatically AUTO or is stopped by pressing this button again MANUAL Selects the second function highlighted in yellow under the buttons Increases or decreases the value of the flashing parameter displayed or selects the next parameter Press the button for a longer time to increase the change of value...

Страница 18: ...ngest spectral component is displayed Measuring rate Display updates approx 3 times per s Measurement Range 5 to 450Hz Resolution 1Hz Operating error 2Hz Min input voltage 10mV Min current through a clamp 0 5mA 3 2 2 Voltage Measurements Overvoltages up to 75Vrms are displayed as 65V Permanent overvoltages between 70 and 75V at terminals H Z and E X can cause overheating of the overvoltage protect...

Страница 19: ... impedance ZH E ZS E ZS ES 1 2MΩ Operating frequency DC and 15 to 440Hz 3 2 3 Current Measurements External Current Measurements Measuring Method Digital by sampling at 4028Hz low pass filter FFT Measuring Rate Display updates approx 3 times per s Signal Conversion Sum of all harmonics 10 to 450Hz With Current Probe SR182 Measurement Range 0 00 to 9 99mA 10 0 to 99 9mA 100 to 999mA 1 00 to 9 99A 1...

Страница 20: ...2 clamp 3 2 4 DC Resistance Measurements Measuring method Voltage Current measurement Standard EN 61557 part 4 Nominal output voltage 16VDC if resistance 22Ω the output voltage is reduced to 10VDC Max output current 200mADC for resistances 20Ω Max overload permanent 50Vrms protection up to 250V is guaranteed Max inductive load 2 H Max interfering voltage 60Vpeak 10Hz Time for auto range selecting ...

Страница 21: ...n 3 measurements per s Long push on START approx 15 s for first value of RE at 128Hz then 3 measurements per s The following error indications refer to reference conditions with a test voltage of 32V test frequency of 128Hz RH and RS 1kΩ no external voltage The operating error of AC resistance measurements can be less than that speci fied for voltage or current because frequency characteristics of...

Страница 22: ... 01 to 9 999Ω 10 00 to 99 99Ω 100 0 to 999 9Ω 1 000 to 9 999kΩ 10 00 to 99 99kΩ Resolution 0 001Ω 0 01Ω 0 1Ω 1Ω 10Ω Intrinsic error 2 1ct Operating conditions RE 3 x RH UOUT 32V Operating error for RE Values for RH RS and RE Frequency Hz RH RS RE 3000 RH 0Ω Rs 3kΩ 41 to 513 3 2cts RH 3kΩ Rs 30kΩ 41 to 513 10 2cts RH RS RE 5000 RH 30kΩ Rs 100kΩ 41 to 128 10 3cts Note With a test voltage UOUT of 16V...

Страница 23: ...z then 3 measurements per s Long push on START approx 20 s for first value of RS ES at 128 Hz then 3 measurements per s Measurement Range 0 00 to 9 99Ω 10 0 to 99 9Ω 100 to 999Ω 1 00 to 9 99kΩ 10 0 to 99 9kΩ Resolution 0 01Ω 0 1Ω 1Ω 10Ω 100Ω Intrinsic error 2 1ct The intrinsic error specified refers to reference conditions with a test voltage of 32V test frequency of 128Hz Rr H Rr S Rr ES and Rr E...

Страница 24: ...ency Automatic 1611Hz Manual 128 1367 1611 or 1758Hz Noise suppression 80 dB at frequencies differing by 20 or more from the test frequency Max interfering current 20Apeak Max value for RH RS 100kΩ Measuring time approx 7 s for the first value of RLoop then 3 meas per s Measurement Range 0 10 to 9 99Ω 10 0 to 99 9Ω 100 to 500Ω Measurement frequency 1367Hz 1611Hz 1758Hz Resolution 0 01Ω 0 1Ω 1Ω Ope...

Страница 25: ...asurement 1 5 W 4500 mΩ 2 4 9 W 1500 3 Poles 4 Pole 3 4 9 W 1500 ρ 4 4 9 W 1500 2 Clamps 3 7 W 2000 1 Measurements in automatic mode at 25 s intervals 2 With R 1Ω 3 With RH RE 100Ω 4 With RH RS ES 100Ω 3 5 Mechanical Dimensions 10 7 x 9 76 x 5 12 272 x 248 x 130mm Weight 7 lbs 3 2kg approx Case Material ULV0 Polypropylene Terminals 4mm recessed banana jacks Case Protection EN 60529 IP53 cover clos...

Страница 26: ... outside this range 1 5 10 C and 1 5 between 75 and 90 RH must be added to the operating error 3 7 Safety Electromagnetic Compatibility This instrument satisfies the EMC and LVD directives required for the CE marking and product standard IEC 61326 1 Ed 97 A1 Ed 98 Immunity in industrial environment Emissions in residential environment Electrical safety according to EN 61010 1 Ed 2 of 2001 Measurem...

Страница 27: ...o the function Press the START STOP button The device makes the measurement and stops automatically Read the measurement result on the display and the relevant parameters using the DISPLAY button To save the information in memory use the MEM button see 7 1 4 1 2 Manual Expert Mode Set the switch to the desired function Make the connections appropriate to the function Select MANUAL mode Choose vari...

Страница 28: ...ed using the SELECT button and CHANGE buttons To exit SET UP turn the rotary switch to another position All of the parameters that are modified are permanently saved until a new instrument configuration is performed Parameter to be modified Button Possible values Date and Month Hz OPTIONS 1st press yyyy mm dd Time Hz OPTIONS 2nd press hh mm Baud Rate Hz OPTIONS 3rd press 9 6k 19 2k 38 4k Default c...

Страница 29: ...Test Voltage Available in all functions except mW and 2 Clamp If necessary the test voltages can be switched to either 16 or 32V as follows Press the Hz OPTIONS button then press it again to make the output volt age Uout blink Use the button to switch to 16 or 32V then press Hz OPTIONS again This setting is retained when the unit is turned off 5 2 Resistance Measurement mΩ 2 Wire WARNING Before pe...

Страница 30: ...ation Measurement Lead compensation subtracts the resistance of the test leads from the measured result Short the two measurement leads connected to H Z and E X terminals Press the 2nd button then the START STOP button to start the measure ment This value will be deducted from all resistance values measured thereafter until the rotary switch is turned to another function AUTO 0 R Ω DC AC ALARM Ω H...

Страница 31: ...e audible alarm buzzer sounds for a few seconds are triggered when R 2Ω This threshold can be changed using the SET UP function x 2 ALARM Ω Turn the alarm ON or OFF Access the type of alarm Choose a low or high alarm Set the value of the alarm between 1 and 999W Complete the adjustment of the alarm setting and x 3 www ShopAEMC com Shop for AEMC products online at 1 888 610 7664 ...

Страница 32: ...a 4 Wire measurement Press Hz OPTIONS AUTO will blink Press Hz OPTIONS once again H and E will blink Press H S ES and E will all blink Confirm choice by pressing Hz OPTIONS again WARNING Before performing the resistance test verify that the sample under test is not energized 1 Set the switch to 2 Connect the resistance to all 4 terminals R www ShopAEMC com Shop for AEMC products online at 1 888 61...

Страница 33: ... method will be discussed in this section 5 4 1 62 Method 1 Set the switch to Ω 2 Place electrodes H Z and S Y to form a straight line with the earth electrode under test The distance between electrode S Y and the earth electrode is 62 of the distance between electrode H Z and the earth electrode the distance between the electrodes H Z and E X should be 8 to 10 times the depth of the rod you are t...

Страница 34: ...To select and modify the tens press the button and then the button until the desired digit is displayed 0 9 6 To select and modify the units and tenths of a unit press the button and then the button until the desired digits are displayed 0 0 9 9 7 To terminate the programming of distance press the 2nd button and then the DISTANCE button It is also necessary to program distance A This is done in th...

Страница 35: ...2 and at 72 for the S electrode 5 4 2 Full Method A more thorough measurement can be obtained by taking measurement by mov ing the S Y auxiliary electrode every 10 between H Z and E X and plotting the results A distinct plateau should result as shown below 0 10 R10 R20 R30 R40 R50 H E R60 R70 R80 R90 20 30 40 50 60 70 80 90 100 Take the average of the 3 or 4 readings on the plateau to obtain the e...

Страница 36: ...e sure that your earth measurements are not distorted by interference we recommend repeating the measurement with the auxiliary electrodes placed at a different distance and in another direction for example rotated 90 from the first alignment H Z S Y E X H Z S Y d 2 d1 If you find the same values your measurement is reliable If the measured values are substantially different it is likely that they...

Страница 37: ...ps and to avoid placing the cables near or parallel to metallic conductors cables rails fences etc Connect the cables to terminals H Z and S Y disconnect the earth strap from the rod under test then connect terminals E X and ES Xv to the earth electrode to be tested 3 Start the measurement by pressing the START STOP button H S ES E AUTO Ω mA mV 4 To display the measurement parameters press DISPLAY...

Страница 38: ...epts currents up to 10Arms and can be placed on conductors up to 3 4 20mm in diameter 1 Set the switch to 2 Place electrodes H Z and S Y at least 30m 98 ft apart so that there is no interference between them H Z S Y RE1 RE2 RE3 RE4 30 m 98 ft 30 m 98 ft In order to avoid electromagnetic interference it is best to unwind the full length of each cable from the reel to keep the cables as far apart as...

Страница 39: ...S ES E AUTO Ω mA mV RSEL RE1 6 You can now move the clamp and its lead to measure the other earth resist ances RE2 RE3 etc 7 To display the measurement parameters press DISPLAY several times The device displays the following parameters RSEL US ES IH E R Act RPASS U Act UH E and its frequency I Act IES and its frequency To measure the resistances of auxiliary electrodes H Z and S Y or if the resis ...

Страница 40: ... ES Xv and S Y only for most readings This can significantly decrease the time required to acquire a sounding All four electrodes the two current E X and H Z and the two potential 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 inc...

Страница 41: ...E ρ CONFIG Hz V S A d d x 2 To switch back to the Wenner method simply repeat this procedure The last measurement method selected Wenner or Schlumberger is stored in memory when the device is switched off 5 6 3 Programming the Distance for Electrode Placement The distance can be programmed before or after the measurement If it is not programmed only the value of RS ES will be displayed since the v...

Страница 42: ...n In the case of the Schlumberger method it is also necessary to program distance A This is done in the same way as for distance d 5 6 4 Wenner Method 1 Set the switch to 2 Place the 4 earth electrodes on a straight line at a distance d from one an other and at a depth p 1 20 d Distance d must be between 2 and 30m 3 Connect the cables to the electrodes then to terminals H Z S Y ES Xv and E X in se...

Страница 43: ...S Xv and E X or if the resistance of the electrodes is too high see 10 1 start the measure ment by a long press of the START STOP button RP E and RP H then RP ES and RP S will be displayed 2s W AUTO H S ES E d ρ d d kΩm kΩ kΩ W AUTO H S ES E d ρ d d kΩm kΩ kΩ 5 6 5 Schlumberger Method 1 Set the switch to 2 Place electrodes S Y and ES Xv at a distance A apart then place elec trodes H Z and E X in t...

Страница 44: ...ces etc 6 Start the measurement by pressing the START STOP button AUTO H S ES E ρS A d d Ωm m Ω ρs π RS ES d2 A2 4 A To display the measurement parameters press DISPLAY several times The device displays the following parameters ρS RS ES d US ES IH E U Act US ES and its frequency UH E and its frequency To measure the resistances of the auxiliary electrodes H Z S Y ES Xv and E X or if the resistance...

Страница 45: ...by the impedance of the circuit to be measured The current flowing in the loop is measured using the clamp connected to terminal ES Xv The device then calculates loop resistance RLOOP from these quantities NOTE Use only SR182 or MN82 current clamps which are specially designed to operate with the Model 6471 1 Set the switch to 2 Connect a clamp to terminal H Z and clamp it to a point down stream f...

Страница 46: ...8 10 to 50 0 7m 2 04 0 3m 1 50 to 100 0 9m 3 0 5m 1 08 100 to 500 1 2m 4 0 5m 1 08 1 Start the measurement by pressing the START STOP button In the case of the diagram below the earth impedance measured is equal to RLOOP RE RE1 RE2 RE3 2s AUTO Ω Hz H ES m A NOTE In the AUTO mode the measurement frequency is 1611Hz To make an earth measurement that is free of inductive effects you must change to MA...

Страница 47: ... be stopped by a second press of this button Whenever a new measurement function is selected the device automatically changes back to AUTO mode 6 1 Switching the Test Voltage Available in all functions except mW and 2 Clamp If necessary the test voltages can be switched to either 16 or 32V as follows Press the Hz OPTIONS button then press it again to make the output volt age Uout blink Use the but...

Страница 48: ...to be changed using the button Terminal symbols H and E blink H S ES E blink 4 Pole measurement POS on H and DC blinks neg on H and DC reversal of polarity at terminal H In MANUAL mode the tester does not reverse polarity automatically during the measurement however the polarity can be reversed during the measurement by pressing the Hz OPTIONS button 6 3 1 Continuity Test The 2 wire mΩ measurement...

Страница 49: ...Measurement 2 Measurement 1 Press Hz OPTIONS and use the button to switch from EARTH to EARTH COU PLING Proceed as follows If you want to eliminate the resistance of the measurement leads you can use lead compensation 2nd START before starting the actual coupling measurement see 5 2 1 Turn the rotary switch to 3 Pole Select a test frequency and a test voltage if desired The screen displays EARTH C...

Страница 50: ...twice EARTH COUPLING 4 and the results of the measurements are displayed The calculation is based on the following formulas RC R1 R2 R1 2 2 C1 RC R1 and C2 RC R2 RA R1 RC Rb R2 RC To display all of the measurement parameters press the MR button To scroll through all of the measurements use the and buttons then x 4 Press DISPLAY several times to display the following parameters EARTH COUPLING 1 R1 ...

Страница 51: ...itch to ρS Schlumberger method 128Hz blinks Change the test frequency Test voltage blinks Switch between 16 and 32V 6 7 Measurements with Two Clamps Pressing the Hz OPTIONS button allows the following parameters to be changed using the button 1611Hz blinks Change the test frequency 6 8 Smoothing In the manual mode you can activate or deactivate the smoothing of the measure ment results by pressing...

Страница 52: ...you must set the date and time of the device before any storage in memory see 4 2 7 1 Saving Measurements into Memory Measurement results can be saved by performing the following Press the MEM button The tester will automatically suggest the next free memory location message Press the MEM button a second time to save to the OBJ TEST location If you decide not to save your results press DISPLAY to ...

Страница 53: ...ed individually using Data View software see 8 7 3 Erasing Measurements from Memory There are two ways to erase measurements complete and selective 7 3 1 Erasing All Measurements Set the switch to SET UP Push once on the MEM button to display the number of free and available records Push a second time on the MEM button The display will show dEL ALL Change the blinking NO to YES with the button the...

Страница 54: ...m a short press on the MEM button Note that if the test stored in this Object Test number is a sweep test which con sists of multiple measurements taken at different frequencies this procedure only deletes a single measurement The remaining sweep measurements will still be stored in this Object Test You must delete all individual measurements to com pletely remove a sweep test When a test is delet...

Страница 55: ...mplete DataView must be reinstalled for each user in a multi user system USB Flash Drive Install 1 Insert the USB stick into an available USB port wait for driver to be installed 2 If Autorun is enabled then an AutoPlay window should appear as shown NOTE If Autorun is disabled it will be necessary to open Windows Explorer then locate and open the USB stick drive labeled DataView to view the files ...

Страница 56: ... download the most recent version of Adobe Reader to the computer Adobe Reader is required for viewing PDF documents supplied with DataView DataView Updates Links to the online DataView software updates to check for new software version releases Firmware Upgrades Links to the online firmware updates to check for new firmware version releases Documents Shows a list of instrument related documents t...

Страница 57: ... the Setup Type window that appears select the Complete radio button option then click Next 11 In the Select Features window that appears select the instrument s control panel that you want to install then click Next NOTE The PDF XChange option must be selected to be able to generate PDF reports from within DataView Figure 8 2 www ShopAEMC com Shop for AEMC products online at 1 888 610 7664 ...

Страница 58: ...lick Yes to read the procedure for con necting the instrument to the USB port on the computer NOTE The Set up window remains open You may now select another option to download e g Adobe Reader or close the window 17 Restart your computer then connect the instrument to the USB port on the computer 18 Once connected the Found New Hardware dialog box will appear Windows will complete the driver insta...

Страница 59: ...del 6471 to your computer 1 Connect the optical connector end of the cable to the serial port on the front panel of the Model 6471 see Figure 2 1 Item 4 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 6471 8 3 Opening the Ground Tester Control Panel To open the Control Panel double click the Ground Tester I...

Страница 60: ...easurement of each test performed in real time available only after a test has been performed If the indicated items are not shown on the screen select Restore Default Layout from the Window menu 8 3 1 Establishing Communication to the Instrument If the instrument is turned ON at the time the Ground Tester Control Panel is opened a communication link will happen automatically If the instrument is ...

Страница 61: ... of test selected Load from File Retrieves stored configurations to be used in programming the instrument 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 Set Instrument Clock Updates the clock to the PC clock Buzzer When selected buzzer is ON Alarm When selected alarm ...

Страница 62: ...tance is selected from the tool bar you can select With or without Auxiliary Rod Resistance Test voltage of 16 or 32VAC Distance d from terminal X to terminal Y Distance a from terminal X to terminal Z Auto frequency selects the optimum frequency from 41 to 513Hz usually 128Hz or select manually from the drop down frequency list Selecting a sweep frequency test from the drop down list will enable ...

Страница 63: ... With or without Auxiliary Rod Resistance Test voltage 16 or 32VAC Auto frequency selects the optimum frequency from 41 to 513Hz usually 128Hz or select manually from the drop down frequency list Selecting a sweep frequency test from the drop down list will enable the sweep table selection The Input Noise option allows the viewing of noise for Z or Y inputs www ShopAEMC com Shop for AEMC products ...

Страница 64: ...hout Auxiliary Rod Resistance Test voltage 16 or 32VAC Auto frequency select the optimum frequency from 41 to 5078Hz usually 128Hz or select manually from the drop down frequency list Current Z and potential electrodes Y are installed as in a fall of potential test Current probe and lead are both connected at the test point Multiple test points can be measured by moving the probe with its lead to ...

Страница 65: ...m the tool bar you can select With or without Auxiliary Rod Resistance Test voltage 16 or 32VAC Auto frequency selects the optimum frequency from 41 to 128Hz usually 128Hz or select manually from the drop down frequency list Test Method Wenner or Schlumberger Distances the distance d for Wenner test method or d and a for Sch lumberger test method between the test electrodes needs to be entered for...

Страница 66: ... Y inputs Figure 8 10 8 4 6 Ground Loop R This mode can only be selected when there are current probes connected to the Z and Xv terminals When Ground Loop R is selected from the tool bar you can select Auto frequency selects the optimum frequency from 1367 to 1758Hz usually 1367Hz or select manually from the drop down frequency list www ShopAEMC com Shop for AEMC products online at 1 888 610 7664...

Страница 67: ...ols Options Set number display as scientific 1000 as 1E 3 or letters 1000 as 1k Set Label Terminals to be X Xv Y Z or E ES S H Set Measurement units to meter or feet Set Rho units to Ohm meter or Ohm centimeter www ShopAEMC com Shop for AEMC products online at 1 888 610 7664 ...

Страница 68: ...ta 1 Select the data you want to download by clicking on the file name see Figure 8 13 2 Select Create DataView Report DataView will be open with the newly created report 3 Alternatively select Create Spreadsheet Type a name for the download ed file In the Save as type drop down menu select either xls saves it as an Excel spreadsheet file or csv saves it as a comma delimited file then click Save 4...

Страница 69: ...open the Session Properties dialog box by selecting Edit Edit Session Properties Figure 8 13 The Session Properties dialog allows you to specify Operator Site and Custom parameters that are to be saved with recorded data These parameters are used when generating reports www ShopAEMC com Shop for AEMC products online at 1 888 610 7664 ...

Страница 70: ...eport NOTE You can also set defaults for session properties within the Ground Tester Control Panel by selecting File Edit Session Properties 8 8 Saving Exporting Data to a Spreadsheet or PDF File Measurement values stored in a database can be saved to a spreadsheet csv file which can be opened in Microsoft Excel or exported to a PDF file which can be opened using free Adobe Reader software NOTE Ex...

Страница 71: ...ppear Choose a location to save it to and click Save NOTE Data can also be exported to a spreadsheet from within DataView by go ing to File Export to Spreadsheet This completes the process of configuring running retrieving data and printing a report using DataView with your Model 6471 In addition to the pre designed report templates DataView allows you to totally configure reports to your needs Re...

Страница 72: ...he instrument from any source of electricity Use a soft cloth lightly moistened with soapy water Wipe with a moist cloth and then dry with a dry cloth Never use alcohol solvents or hydrocarbons 9 3 Fuse Replacement The unit is protected from overloads by two identical fuses Fuse for terminal H Z If this fuse is defective the unit will no longer produce an output voltage making it impossible to per...

Страница 73: ... near the terminal for the battery charger 5 If only the fuse for terminal H Z needs to be replaced jump ahead to step 13 To replace the fuse for the clamp terminal ES Xv continue on 6 Loosen the two screws on the lid of the battery case and remove the lid 7 Pull the battery a short way out of the case without overstretching the con nection leads and loosen the two screws at the bottom of the case...

Страница 74: ...ing conditions As the earth tester might go some time without use and the battery has a natural tendency to run down you should check the battery level at regular intervals To do this turn on the unit and check the battery level indicator at the top of the display If there is only one bar in the symbol or if there are no bars at all the bat tery should be recharged If the unit is not used for a lo...

Страница 75: ...n this unit is a special product with customized safety features and protective devices It should be replaced only by the same model If a different model is used there is a danger of fire or explosion leading to possible damage or injury NOTE For safety reasons replace the battery with an identical model NiMH Custom Pack 9 6 V 3 5 Ah Cat 2960 21 Procedure for replacing the battery 1 Disconnect the...

Страница 76: ...it is aligned correctly the four cylindrical holes on the back must slip over the four mounting pins on the front panel Also make sure you do not pinch the battery leads or other wires or components 11 Pull the battery a short way out of the case without overstretching the connection leads and retighten the two screws at the bottom of the case Then put the battery back into the case 12 Put the lid...

Страница 77: ...s the measurement is out of range and If both symbols flash together it means that the accuracy of the value displayed is outside of the instrument specification or is subject to large fluctuations Activating the smoothing function SMOOTH may correct this Press the 2nd button then the SMOOTH button to activate smoothing 10 1 3 Misconnection H S ES E This flashing indicates that a terminal or a cur...

Страница 78: ...ve measurement means that the operat ing limits have been exceeded If this symbol remains lit during an active measurement it means that the values measured are subject to large fluctuations or that there is an incorrect connection NOISE The display of an indefinite value for a passive measurement indi cates that measurement current IES or ISEL or voltage US ES is too low The display of the NOISE ...

Страница 79: ...mean values 2 steady 3 flashes RPASS IES 3 mA ISEL 30 mA US ES 10 mV flashes RPASS IES 0 3 mA ISEL 3 mA US ES 1 mV undefined All US ES US E UH E 42 V flashes 3 All Stray voltage of which the frequency and or value is likely to inter fere with the measure ment NOISE 4 1 IH E current IH E measured at the start of the measurement before ISEL 2 Not active if the SMOOTH function is selected 3 The symbo...

Страница 80: ...easurement function and disappear if the function is changed The device can therefore be used but a repair will be necessary if the error persists Error 18 indicates that the rechargeable battery in the tester cannot be recharged If this error occurs during recharging disconnect the tester from the charger and follow the procedure described in the fatal errors Error 19 can be corrected by clearing...

Страница 81: ...akes electrical contact with it Earth potential The potential difference measured between the earth connection and a refer ence earth electrode Earth electrode ES Xv A connection on the earth electrode or earthing system used for measuring the potential of the earth electrode Earth resistance The resistance measured between the earth connection and a reference earth electrode cf selective earth re...

Страница 82: ...plementary electrode An additional earth electrode earth stake earth rod Touch voltage The potential difference which a person is able to bridge with his or her body the resulting current being limited by the body and the local earth resistance cf step voltage The general term earth measurement can refer to measurements of individual earth electrodes earth connections or entire earthing systems de...

Страница 83: ...tance measured with a positive current circulation from terminal H to E R resistance measured with a negative current circulation from terminal H to E R Act 1 resistance currently calculated from values U Act and I Act R1 first value measured to calculate the coupling between 2 earth sockets R1 RA RC R2 second value measured to calculate the coupling between 2 earth sockets R2 Rb RC R1 2 third val...

Страница 84: ...ls S and E US ES voltage measured between terminals S and ES USR frequency chosen by the user USrEL voltage of terminal S compared with E expressed as a relative value rEL value without unit V pot ground potential measurement ρS ground resistivity measured according to the Schlumberger method expressed as Ω m ρW ground resistivity measured according to the Wenner method expressed as Ω m 1 The suff...

Страница 85: ...www ShopAEMC com Shop for AEMC products online at 1 888 610 7664 ...

Страница 86: ...d 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 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 sig...

Страница 87: ...Ground Resistance Tester Model 6471 85 Notes www ShopAEMC com Shop for AEMC products online at 1 888 610 7664 ...

Страница 88: ...04 16 99 MAN 100331 v12 Chauvin Arnoux Inc d b a AEMC Instruments www ShopAEMC com Shop for AEMC products online at 1 888 610 7664 ...

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