Related Manuals for AEMC instruments 6471
Summary of Contents for AEMC instruments 6471
- Page 1 User Manual ENGLISH Ground Resistance Tester Model 6471 GROUND RESISTANCE TESTERS WITH AEMC INSTRUMENTS ®...
- Page 2 Copyright Chauvin Arnoux , Inc. d.b.a. AEMC Instruments. All rights reserved. © ® ® No part of this documentation may be reproduced in any form or by any means (including electronic storage and retrieval or translation into any other language) without prior agreement and written consent from Chauvin Arnoux , Inc., as governed by United States and International copyright laws.
- Page 3 Refer to our repair and calibration section at www.aemc.com/calibration. Serial #: Catalog #: 2135.45, 2135.49, 2135.50, 2135.60 & 2135.61 Model #: 6471 Please fill in the appropriate date as indicated: Date Received: Date Calibration Due: Chauvin Arnoux , Inc. ®...
-
Page 4: Table Of Contents
TABLE OF CONTENTS 1. INTRODUCTION ..............7 1.1 PRECAUTIONS FOR USE ............8 1.2 BATTERY ..................9 1.3 RECEIVING YOUR SHIPMENT ..........9 1.4 ORDERING INFORMATION ........... 10 1.4.1 Accessories ..............10 1.4.2 Replacement Parts ............11 2. PRODUCT FEATURES ............. 12 2.1 DESCRIPTION ................. - Page 5 5. AUTOMATIC MODE ............29 5.1 SWITCHING THE TEST VOLTAGE ........29 5.2 RESISTANCE MEASUREMENT MΩ (2-WIRE) ..... 29 5.2.1 Lead Compensation Measurement ........30 5.2.2 Alarm Function ..............31 5.3 RESISTANCE MEASUREMENT MΩ (4-WIRE) ..... 32 5.4 EARTH/GROUND MEASUREMENT (3-POLE)..... 33 5.4.1 62 % Method ..............
- Page 6 7. MEMORY FUNCTION ............52 7.1 SAVING MEASUREMENTS INTO MEMORY ......52 7.2 RECALLING MEASUREMENTS FROM MEMORY ....53 7.3 ERASING MEASUREMENTS FROM MEMORY ....53 7.3.1 Erasing All Measurements ..........53 7.3.2 Erasing Selective Measurements ........53 8. DATAVIEW SOFTWARE ..........55 ®...
-
Page 7: Introduction
1. INTRODUCTION Thank you for purchasing an AEMC Instruments Ground Tester Model 6471. ® For the best results from your instrument and for your safety, you must read the enclosed operating instructions carefully and comply with the precautions for use. -
Page 8: Precautions For Use
(thunderstorms). It is up to the operator to decide whether to continue or postpone measurements in these situations. Ground Resistance Tester Model 6471 - User Manual... -
Page 9: Battery
Save the damaged packing container to substantiate your claim. Ground Resistance Tester Model 6471 - User Manual... -
Page 10: Ordering Information
® Ground Tester Model 6471 Kit (300 ft - no probes included) ..Cat. #2135.60 Includes meter, (2) carrying bags, (2) 300 ft color-coded leads on spools (red/blue), (2) 100 ft color-coded leads (hand-tied, green/black),... -
Page 11: Replacement Parts
Replacement - Power Adapter 110/240 V & Power Cord 115 V US ..Cat. #5000.13 Replacement - Power Cord 115 V US Plug........Cat. #5000.14 Order Accessories and Replacement Parts Directly Online Check our Storefront at www.aemc.com/store for availability Ground Resistance Tester Model 6471 - User Manual... -
Page 12: Product Features
The Model 6471 is CAT IV rated to 50 V and is over voltage protected to more than 250 V against accidental connection to live circuits. The voltage is also displayed on screen. -
Page 13: Key Features
Grounding standards IEC 61557 parts 4 and 5 compliant Includes DataView software for data storage, real-time display, analysis, ■ ® report generation and system configuration 2.3 CONTROL FEATURES Ω GROUND TESTER MODEL 6471 Figure 2-1 Ground Resistance Tester Model 6471 - User Manual... -
Page 14: Display
OFF after the function is complete. Press the DISPLAY button to turn it back ON. NOTE 3: In the Set-up mode, pressing the DISPLAY button also selects the next configurable parameter. Ground Resistance Tester Model 6471 - User Manual... - Page 15 Indicates the battery charge condition; the segments represent the energy. EARTH Indicates whether the 3-Pole EARTH measurement or the COUPLING EARTH COUPLING measurement has been selected. S x 1/10 Symbol not used in Model 6471 Ground Resistance Tester Model 6471 - User Manual...
- Page 16 Indicates the alarm is activated. An audible alarm will sound if ALARM the value measured is above the limit defined in the SET-UP mode. Distances to be entered between earth electrode and supplementary electrodes or between earth electrodes. Ground Resistance Tester Model 6471 - User Manual...
-
Page 17: Button Functions
Hz/OPTIONS: Enables configuration of measurement functions. Hz/OPTIONS/ DISTANCE: Available for soil resistivity and V potential DISTANCE measurements. It allows the setting of values of distances used for Rho (ρ) calculation. Ground Resistance Tester Model 6471 - User Manual... -
Page 18: Specifications
31 (excessive external voltage) or 32 (voltage measurement overrange). If terminals H (Z) and E (X) are put into contact with the line voltage, the protection fuse will blow. Ground Resistance Tester Model 6471 - User Manual... -
Page 19: External Voltage Measurements
0.1 to 40.0 A (1): The Model 6471 cannot detect whether a current clamp SR182 or MN82 is connected. In the case of the MN82 clamp, with currents >10 A and frequencies < 100 Hz the instrument will not display any warning messages. -
Page 20: Dc Resistance Measurements
Ω Ω Ω kΩ kΩ Resolution 0.001 Ω 0.01 Ω 0.1 Ω 1 Ω 10 Ω Intrinsic error ± (2 % + 2 cts) Operating error ± (5 % + 5 cts) Ground Resistance Tester Model 6471 - User Manual... -
Page 21: Ac Earth/Ground Resistance Measurements
The START button must be pressed for more than 2 s. For frequencies between (41 and 256) Hz, the resistance of the auxiliary earth electrodes is measured at the test frequency set. At higher frequencies the resistance is measured at 256 Hz. Ground Resistance Tester Model 6471 - User Manual... - Page 22 Same characteristics as 4-Pole earth measurements with the following particular conditions: Minimum current: SR182, I >0.5 mA MN82, I >2 mA Maximum R ratio: SR182, (R ) <500 MN82, (R ) <120 with R <20 Ω Ground Resistance Tester Model 6471 - User Manual...
-
Page 23: Soil Resistivity Measurement
S-ES is the resistance of the earth rods R assumed to be ρ ρ ρ ρ identical. NOTE: With a test voltage U of 16 V, halve the value of R Ground Resistance Tester Model 6471 - User Manual... -
Page 24: Earth/Ground Measurements With 2 Clamps
0.1 Ω SR182 ± (20 % + 2 cts) Operating error (without external current) MN82 not specified Observe the minimum distance between the two clamps according to table in § 5.7. (1): Ground Resistance Tester Model 6471 - User Manual... -
Page 25: Data Storage
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. Ground Resistance Tester Model 6471 - User Manual... -
Page 26: Safety
Emissions in residential environment. Electrical safety according to EN 61010. Measurement according to EN 61557. CAT IV, 50 V Pollution Degree 2 *Specifications are subject to change at any time without notice Ground Resistance Tester Model 6471 - User Manual... -
Page 27: Operation
START/STOP button. ■ View the result on the display and toggle through the relevant parameters using the DISPLAY button. To record the information into memory, use the MEM button (see § 7). ■ Ground Resistance Tester Model 6471 - User Manual... -
Page 28: Instrument Configuration (Set-Up Mode)
4.2 INSTRUMENT CONFIGURATION (SET-UP MODE) To configure the Model 6471 parameters, turn the rotary switch to SET-UP: ■ All the segments on the display are activated for 1 second and then the PUSH button message appears on the display. Various parameters are accessible by pressing the corresponding button. -
Page 29: Automatic Mode
5.2 RESISTANCE MEASUREMENT MΩ (2-WIRE) 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 terminals H (Z) and E (X). Ground Resistance Tester Model 6471 - User Manual... -
Page 30: Lead Compensation Measurement
3. The 6471 makes a measurement with a positive current (R+), then reverses the direction of the current and makes another measurement with negative (R-). ± ± Ω Ω (R+) + (R-) ALARM ALARM Ω Ω Ω Ω AUTO AUTO 4. -
Page 31: Alarm Function
Choose a low (<) or ON or OFF type of alarm high (>) alarm Set the value of the alarm Complete the adjustment between 1 and 999 Ω of the alarm setting Ground Resistance Tester Model 6471 - User Manual... -
Page 32: Resistance Measurement Mω (4-Wire)
(H, S, ES and E will all blink) 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. Ground Resistance Tester Model 6471 - User Manual... -
Page 33: Earth/Ground Measurement (3-Pole)
(cables, rails, fences, etc.). Ground Resistance Tester Model 6471 - User Manual... - Page 34 8. Start the measurement by pressing the START/STOP button. EARTH Ω AUTO AUTO 9. To display the measurement parameters, press DISPLAY several times. The device displays the following parameters: , U-Act (U and its frequency, U and its frequency). Ground Resistance Tester Model 6471 - User Manual...
-
Page 35: Full Method
A distinct plateau should result as shown below. R30 R40 % H - E Take the average of the 3 or 4 readings on the R40 + R50 + R60 + R70 plateau to obtain the earth electrode resistance. Ground Resistance Tester Model 6471 - User Manual... -
Page 36: Recommendations For A Reliable Measurement
Avoid routing the connecting cables of the earth electrodes near or parallel to other cables (transmission or supply), metallic conductors, rails, or fences: high test frequencies may cause cross-talk and affect the measurements. Ground Resistance Tester Model 6471 - User Manual... -
Page 37: Earth/Ground Measurement (4-Pole)
3. Start the measurement by pressing the START/STOP button. Ω AUTO 4. To display the measurement parameters, press DISPLAY several times. The device displays the following parameters: , U-Act (U and its frequency, U and its frequency). Ground Resistance Tester Model 6471 - User Manual... -
Page 38: Measurements With A Clamp
For this selective earth measurement you need a current clamp, either an SR182 (provided) or an MN82 (available as an accessory). These two types of current clamps are specially designed to work with the 6471 ground tester. The SR182 is more precise, suited to the measurement of higher currents (up to... - Page 39 8. To measure the resistances of auxiliary electrodes H (Z) and S (Y), or if the resistance of the electrodes is too large (see § 10.1), start the measurement with a long press of the START/STOP button. will be displayed. Ω kΩ > 2s kΩ AUTO Ground Resistance Tester Model 6471 - User Manual...
-
Page 40: Soil Resistivity Measurements ( Ρ Position)
DC soundings will on DC soundings will be limited to simple, be limited to simple, horizontal; layered horizontal; layered structures structures. Source: DC Resistivity - T. Boyd Ground Resistance Tester Model 6471 - User Manual... -
Page 41: Changing The Measurement Method
AUTO CONFIG AUTO 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. Ground Resistance Tester Model 6471 - User Manual... -
Page 42: Programming The Distance For Electrode Placement
3. Connect the cables to the electrodes, then to terminals H (Z), S (Y), ES (Xv), and E (X) in sequence. 4. Program the distance into the instrument as described in § 5.6.3. Ground Resistance Tester Model 6471 - User Manual... -
Page 43: Schlumberger Method
3. Drive the electrodes to a depth p of not more than 1/20 of d. 4. Connect the cables to the electrodes, then to terminals H (Z), S (Y), ES (Xv), and E (X). Ground Resistance Tester Model 6471 - User Manual... - Page 44 START/STOP button. and R , then R and R will be displayed. P-ES ρ ρ Ω Ω > 2s kΩ kΩ kΩ kΩ AUTO AUTO Ground Resistance Tester Model 6471 - User Manual...
-
Page 45: Earth/Ground Measurements With Two Clamps
LOOP WARNING: 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 from the rod under test that is a serial path to the earth. - Page 46 WARNING: In the AUTO mode, the measurement frequency is 1611 Hz. To make an earth measurement that is free of inductive effects, you must change to MANUAL mode and choose a lower measurement frequency (see § 6.2). Ground Resistance Tester Model 6471 - User Manual...
-
Page 47: Manual Mode
USr, 55 Hz, 92 Hz, 110 Hz, 119 Hz, 128 Hz (128 Hz is default). To change the user frequency (USr), press the ▲▼ buttons (▲▼ raises the value, and + ▲▼ lowers it). Table of possible USr frequencies (48 values from (41 to 513) Hz): Ground Resistance Tester Model 6471 - User Manual... -
Page 48: Manual Settings For Mω Measurements
Pressing on Hz/OPTIONS in MANUAL mode allows the following parameters to be changed using the ► button: ■ EARTH blinks Earth Coupling Measurement 128 Hz blinks Test Frequency Measurement ■ ■ Test voltage blinks Test Voltage Selection Ground Resistance Tester Model 6471 - User Manual... -
Page 49: Earth/Ground Coupling Measurements
H (Z) connected to earth 1 and terminal E (X) to earth 2. Record this result by pressing the MEM button twice. ƒ EARTH COUPLING 4 and the results of the measurements are ƒ displayed. Ground Resistance Tester Model 6471 - User Manual... -
Page 50: 4-Pole Earth/Ground Measurements
► button: blinks (Wenner method) Switch to ρ (Schlumberger method) ■ ρ ■ 128 Hz blinks Change the test frequency ■ Test voltage blinks Switch between (16 and 32) V Ground Resistance Tester Model 6471 - User Manual... -
Page 51: Measurements With Two Clamps
In the manual mode, you can activate or deactivate the smoothing of the mea- surement results by pressing the 2nd + DISPLAY (SMOOTH) buttons. This smoothing consists in displaying an exponential mean value, a significant help with highly fluctuating values. Ground Resistance Tester Model 6471 - User Manual... -
Page 52: Memory Function
It will be possible to overwrite values already stored with new ones having the same distance d, or even to add new results having other values for the distance d provided that all of the other measurement parameters are identical. Ground Resistance Tester Model 6471 - User Manual... -
Page 53: Recalling Measurements From Memory
To delete the test, press the ▲ button to change the blinking NO to YES, then press and hold down (>2 s) the MEM button. To exit without erasing, perform a short press on the MEM button. Ground Resistance Tester Model 6471 - User Manual... - Page 54 When a test is deleted, its Object/Test number is removed from memory. When you subsequently view stored tests, this number will be skipped. This Object/Test number combination remains unavailable for storing tests until you completely erase memory, as instructed in Section 7.3.1. Ground Resistance Tester Model 6471 - User Manual...
-
Page 55: Installing Dataview
® recommend that you select Ground Tester and deselect the rest. You should also check the option DataView Core, which is a requirement if you plan to ® create DataView reports. ® Ground Resistance Tester Model 6471 - User Manual... -
Page 56: Ground Tester Control Panel
For further information about using the Ground Tester Control Panel, consult the Help system that comes with the product. Access this Help by clicking the option Help in the Control Panel’s menu bar at the top of the screen. Ground Resistance Tester Model 6471 - User Manual... -
Page 57: Maintenance
ES (Xv) in the display, the fuse must be replaced. WARNING: For safety reasons this fuse must always be replaced by an identical model: 0.63 A F 250 V 5 x 20 mm 1.5 kA (Cat. #2135.81). Ground Resistance Tester Model 6471 - User Manual... - Page 58 12. Put the lid back onto the battery case and screw it shut. 13. Wipe off any dirt on the seal and housing rim. 14. Put the unit back into the housing and screw it into place. Ground Resistance Tester Model 6471 - User Manual...
-
Page 59: Charging The Battery
Battery is too cold for a fast charge (<0 °C) - charging at a lower current bAtt FULL Battery is full - switch to trickle charging The 6471 tester can also be charged from a 12 V car outlet with a special charging unit. -
Page 60: Replacing The Battery
(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. Ground Resistance Tester Model 6471 - User Manual... - Page 61 (3 to 5 times). Discharge cycle (15 H) can be made with the instrument in MANUAL mode, DC 2-Pole (2-Pole) resistance measurement and a short-circuit between H (Z) and E (X) plugs. Ground Resistance Tester Model 6471 - User Manual...
-
Page 62: Troubleshooting & Maintenance
S (Y) leg of the circuit. To reduce the resistance of the electrodes, you can also drive them deeper, pack the ground around them well, or dampen them with water. Ground Resistance Tester Model 6471 - User Manual... -
Page 63: Out Of Limits Indicators
≤ 513 Hz > 30 kΩ flashes 4P sel < 1 mA flashes Values measured (U, I, steady R) unstable, varying by more than 5 % about flashes their mean values. Ground Resistance Tester Model 6471 - User Manual... -
Page 64: Error Messages
(when the NOISE symbol is no longer illuminated). 10.1.5 Error Messages When started up, the Model 6471 device automatically performs a self-test. If a fault appears during this self-test or during a measurement, the device displays a message in the form Err XX. -
Page 65: Repair And Calibration
(603) 742-2346 E-mail: repair@aemc.com (Or contact your authorized distributor.) Contact us for the costs for repair, standard calibration, and calibration traceable to N.I.S.T. NOTE: You must obtain a CSA# before returning any instrument. Ground Resistance Tester Model 6471 - User Manual... -
Page 66: Technical Assistance
AEMC Instruments will repair or replace the faulty material ® at our discretion. www.aemc.com/warranty.html REGISTER ONLINE AT: Ground Resistance Tester Model 6471 - User Manual... -
Page 67: Warranty Repairs
(603) 749-6434 (Ext. 360) Fax: (603) 742-2346 E-mail: repair@aemc.com Caution: To protect yourself against in-transit loss, we recommend that you insure your returned material. NOTE: You must obtain a CSA# before returning any instrument. Ground Resistance Tester Model 6471 - User Manual... -
Page 68: Appendix A: Glossary Of Terms
Resistivity of the earth (ρ) Resistivity is defined as the resistance from wall to opposite wall of a cubic meter of soil. It is measured in ohm-meters (Ωm). Ground Resistance Tester Model 6471 - User Manual... - Page 69 (cf. step voltage). The general term earth measurement can refer to measurements of individual earth electrodes, earth connections or entire earthing systems, depending on the object of interest. Ground Resistance Tester Model 6471 - User Manual...
-
Page 70: Glossary
2 earth sockets (R first earth value calculated (R second earth value calculated (R coupling resistance between earths R and R = (R – R ) / 2) Ground Resistance Tester Model 6471 - User Manual... - Page 71 In both cases, this value on the display is associated with its frequency. In this case, the resistances of the 4 stakes used for measurement are indicated by R P-ES Ground Resistance Tester Model 6471 - User Manual...
- Page 72 09/23 99-MAN 100331 v21 AEMC Instruments ® 15 Faraday Drive • Dover, NH 03820 USA Phone: +1 (603) 749-6434 • +1 (800) 343-1391 • Fax: +1 (603) 742-2346 www.aemc.com © 2013 Chauvin Arnoux , Inc. d.b.a. AEMC Instruments. All Rights Reserved. ®...
Need help?
Do you have a question about the 6471 and is the answer not in the manual?
Questions and answers