Related Manuals for AEMC 6471
Summary of Contents for AEMC 6471
- Page 1 User Manual ENGLISH 6471 DIGITAL GROUND RESISTANCE AND SOIL RESISTIVITY TESTER ® WITH AEMC INSTRUMENTS GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...
- Page 2 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.
- Page 3 READ CAREFULLY BEFORE USING FOR THE FIRST TIME Your instrument is equipped with a NiMH battery. This technology offers several advantages: • Long battery charge life for a limited volume and weight. • Possibility of quickly recharging your battery. • Significantly reduced memory effect: you can recharge your battery even if it is not fully discharged.
-
Page 4: Table Of Contents
Environmental ..................24 Safety ....................24 4. OPERATION .................. 25 General Operating Instructions ............25 4.1.1 Automatic Mode ..............25 4.1.2 Manual (Expert) Mode ............25 Instrument Configuration (SET-UP mode) .........26 Ground Resistance Tester Model 6471 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com... - Page 5 Measurements with Two Clamps ............49 Smoothing ..................49 7. MEMORY FUNCTION ..............50 Saving Measurements into Memory...........50 Recalling Measurements from Memory ..........51 Erasing Measurements from Memory ..........51 Ground Resistance Tester Model 6471 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...
- Page 6 APPENDIX A: GLOSSARY OF TERMS............ 64 Basic Terminologies ..................64 Glossary ......................65 Repair and Calibration ..................68 Technical and Sales Assistance .................68 Limited Warranty ....................69 Warranty Repairs ....................69 Ground Resistance Tester Model 6471 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...
-
Page 7: Introduction
(thunderstorms). It is up to the operator to decide whether to continue or postpone measurements in these situations. Ground Resistance Tester Model 6471 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com... -
Page 8: International Electrical Symbols
Save the damaged packing container to substantiate your claim. Ground Resistance Tester Model 6471 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com... -
Page 9: Ordering Information
Ground Tester Model 6471 Kit (300 ft - no probes included) ..Cat. #2135.60 Includes meter, two carrying bags, 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),... - Page 10 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 Ground Resistance Tester Model 6471 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...
-
Page 11: Product Features
The Model 6471 is CAT IV rated to 50V and is over voltage protected to more than 250V against accidental connection to live circuits. The voltage is also displayed on screen. -
Page 12: Key Features
Grounding standards IEC 61557 parts 4 and 5 compliant ® • Includes DataView software for data storage, real-time display, analysis, re- port generation and system configuration Ground Resistance Tester Model 6471 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com... -
Page 13: Control Features
SET-UP function (see § 4.2). START/STOP button: Starts the measurement and compensates for the leads (in the mΩ measurement function - see § 5.2.1). Six function buttons (see § 2.5). Ground Resistance Tester Model 6471 GlobalTestSupply www. .com Find Quality Products Online at:... -
Page 14: Display
If this symbol blinks during an active measurement, the limits of use have been exceeded. If the symbol appears constant during an active measurement, the values to be measured are unstable. Warning buzzer is activated Ground Resistance Tester Model 6471 GlobalTestSupply www. .com Find Quality Products Online at:... - Page 15 Indicates whether the 3-Pole EARTH measurement or the EARTH COUPLING COUPLING measurement has been selected. S x 1/10 Symbol not used in Model 6471 Symbol not used in Model 6471 Symbol not used in Model 6471 OBJ:TEST Object and test number for storage in memory.
-
Page 16: Button Functions
Hz/OPTIONS: Enables configuration of measurement functions. z/OPTIONS/ DISTANCE: Available for soil resistivity and V potential measurements. It DISTANCE allows the setting of values of distances used for Rho (ρ) calculation. Ground Resistance Tester Model 6471 GlobalTestSupply www. .com Find Quality Products Online at:... -
Page 17: Specifications
Voltages of more than 75Vrms lead to error message 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 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com... -
Page 18: Current Measurements
± (5% + 2cts) ± (3% + 2cts) 0.5 to 100mA Operating error from > 20% ± (10% + 2cts) ± (5% + 2cts) 0.1 to 40.0A Ground Resistance Tester Model 6471 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com... -
Page 19: Dc Resistance Measurements
± (7% + 2cts) 0.1 to 40.0A (1): The Model 6471 cannot detect whether a current clamp SR182 or MN82 is connected. In the case of the MN82 clamp, with currents > 10A and frequencies < 100Hz the instrument will not display any warning messages. -
Page 20: Ac Earth/Ground Resistance Measurements
The START button must be pressed for more than 2 s. For frequencies between 41 and 256Hz, the resistance of the auxiliary earth electrodes is measured at the test frequency set. At higher frequencies the resistance is measured at 256Hz. Ground Resistance Tester Model 6471 GlobalTestSupply www. - Page 21 Same characteristics as 4-Pole earth measurements with the following particular conditions: Minimum current: SR182, I >0.5mA MN82, I >2mA Maximum R ratio: SR182, (R ) <500 MN82, (R ) <120 with R <20Ω Ground Resistance Tester Model 6471 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...
-
Page 22: Soil Resistivity Measurement Ρ
R assumed to be identi- ρ ρ ρ ρ cal. Note: With a test voltage U of 16V, halve the value of R Ground Resistance Tester Model 6471 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com... -
Page 23: Earth/Ground Measurements With 2 Clamps
(1): Observe the minimum distance between the two clamps according to table in § 5.7. 3.3 Data Storage Memory Capacity: 512 test results (64kB) Communication: Optically isolated USB Ground Resistance Tester Model 6471 GlobalTestSupply www. .com Find Quality Products Online at:... -
Page 24: Power
Case Material: ULV0 Polypropylene Terminals: 4mm recessed banana jacks Case Protection: EN 60529 - IP53 (cover closed) Drop Test: Per EN 61010 Vibration Test: Per EN 61557-1 Ground Resistance Tester Model 6471 GlobalTestSupply www. .com Find Quality Products Online at:... -
Page 25: Environmental
Electrical safety according to EN 61010 Measurement according to EN 61557. CAT IV, 50V Pollution Degree 2 *Specifications are subject to change at any time without notice Ground Resistance Tester Model 6471 GlobalTestSupply www. .com Find Quality Products Online at:... -
Page 26: Operation
Understanding Ground Resistance Testing Workbook CD that was included with the instrument. 4.1 General Operating Instructions The Model 6471 has operating modes: • Automatic mode for routine applications. • Manual (Expert) mode in which the user can change the parameters of the measurement functions. -
Page 27: Instrument Configuration (Set-Up Mode)
• To record the information into memory, use the MEM button (see § 7). 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”... -
Page 28: Automatic Mode
WARNING: Before performing the resistance test, verify that the sample under test is not energized. Set the switch to Connect the resistance to terminals H (Z) and E (X). Ground Resistance Tester Model 6471 GlobalTestSupply www. .com Find Quality Products Online at:... -
Page 29: Lead Compensation Measurement
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 To display the measurement parameters, press DISPLAY several times. -
Page 30: Alarm Function
ON or OFF type of alarm high (>) alarm Set the value of the alarm Complete the adjustment between 1 and 999Ω of the alarm setting Ground Resistance Tester Model 6471 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com... -
Page 31: Resistance Measurement Mω (4-Wire)
Hz/OPTIONS again WARNING: Before performing the resistance test, verify that the sample under test is not energized. Set the switch to Connect the resistance to all 4 terminals. Ground Resistance Tester Model 6471 GlobalTestSupply www. .com Find Quality Products Online at:... -
Page 32: Earth/Ground Measurement (3-Pole)
A > 80 m 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 possible on the ground, Ground Resistance Tester Model 6471 GlobalTestSupply www. - Page 33 AUTO 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 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...
-
Page 34: Full Method
% 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 GlobalTestSupply www. .com Find Quality Products Online at:... -
Page 35: 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 fre- quencies may cause cross-talk and affect the measurements. Ground Resistance Tester Model 6471 GlobalTestSupply www. -
Page 36: Earth/Ground Measurement (4-Pole)
To measure the resistances of auxiliary electrodes H (Z) and S (Y), or if the resis- tance of the electrodes is too large (see § 10.1), start the measurement with a long press of the START/STOP button. will be displayed. Ground Resistance Tester Model 6471 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com... -
Page 37: 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 38 (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 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...
-
Page 39: Soil Resistivity Measurements ( Ρ Position)
DC soundings will be limited to simple, will be limited to simple, horizontal; layered horizontal; layered structures structures. Source: DC Resistivity - T. Boyd Ground Resistance Tester Model 6471 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com... -
Page 40: Changing The Measurement Method
ρ remains programmed, only the value of R S-ES indeterminate. Set the switch to Press the 2nd button, then the DISTANCE button. The "hundredths" will blink. Ground Resistance Tester Model 6471 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com... -
Page 41: Wenner Method
Program the distance into the instrument as described in § 5.6.3. 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 possible on the ground, Ground Resistance Tester Model 6471 GlobalTestSupply www. -
Page 42: Schlumberger Method
Drive the electrodes to a depth p of not more than 1/20 of d. Connect the cables to the electrodes, then to terminals H (Z), S (Y), ES (Xv), and E (X). Ground Resistance Tester Model 6471 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com... - Page 43 E (X), or if the resistance of the electrodes is too high (see § 10.1), start the measurement by a long press of the START/STOP button. and R , then R and R will be displayed. P-ES Ground Resistance Tester Model 6471 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...
-
Page 44: Earth/Ground Measurements With Two Clamps
LOOP NOTE: Use only SR182 or MN82 current clamps, which are specially designed to operate with the Model 6471. Set the switch to 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 45 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 MANUAL mode and choose a lower measurement frequency (see §6.2). Ground Resistance Tester Model 6471 GlobalTestSupply www.
-
Page 46: Manual Mode
If there are signals with a frequency that could interfere with the chosen test fre- quency, the NOISE symbol will appear. While in MANUAL mode, change the frequency by pressing the Hz/OPTIONS button until the frequency flashes. Ground Resistance Tester Model 6471 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com... -
Page 47: Manual Settings For Mω Measurements
• The device must be in manual mode. • The alarm function must be active (On). • The alarm threshold must be low (<). • The buzzer must be activated (bEEP On). Ground Resistance Tester Model 6471 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com... -
Page 48: 3-Pole Earth/Ground Measurements & Coupling
• Stop the measurement by pressing the START/STOP button. The MEM symbol flashes to indicate that this result must be recorded in memory. Press the MEM button twice. To save to another location, refer to §7.1. Ground Resistance Tester Model 6471 GlobalTestSupply www. - Page 49 R if long press of START/STOP EARTH COUPLING 3 and frequency, I , U-In (U and frequency). EARTH COUPLING 4 and its frequency. Ground Resistance Tester Model 6471 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...
-
Page 50: 4-Pole Earth/Ground Measurements
In the manual mode, you can activate or deactivate the smoothing of the measure- ment 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 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com... -
Page 51: 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 GlobalTestSupply www. -
Page 52: Recalling Measurements From Memory
• Press the button. • Press the MR button. The Object and Test numbers of the last stored test ap- pear, with the Object number blinking. Ground Resistance Tester Model 6471 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com... - Page 53 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 num- ber combination remains unavailable for storing tests until you completely erase memory, as instructed in Section 7.3.1. Ground Resistance Tester Model 6471 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...
-
Page 54: Dataview ® Software
Finally, User Manuals displays a list of .pdf files contained in the USB drive that accompanies DataView. (DataView also comes with a Help system that is installed with the program files.) To install DataView, select DataView in the Options list and click Install. Ground Resistance Tester Model 6471 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com... - Page 55 (a check mark next to the Control Panel indicates it is selected). Control Panels take up disk space on the computer; so unless you have other types of AEMC instruments, we recommend that you select Ground Tester and deselect the rest.
-
Page 56: Ground Tester Control Panel
Control Panel. However, there are situations where using the core Data- View icon may be more convenient for some users, such as when viewing multiple archived reports from different AEMC product families. For further information about using the Ground Tester Control Panel, consult the Help system that comes with the product. -
Page 57: Maintenance
To test this fuse, turn the switch to the mΩ position (2-Wire), connect measurement leads to terminals H (Z) and E (X) and start a measurement. If the unit refuses to operate and the symbol for terminal H (Z) blinks, the fuse must be replaced. Ground Resistance Tester Model 6471 GlobalTestSupply www. - Page 58 (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 GlobalTestSupply www.
-
Page 59: Recharging The Battery
(suitable for Europe and the U.S.). The frame of the battery symbol will blink during charging. Charging goes faster when the tester is turned off. The bat- tery voltage is shown on the large display next to Ubatt. Ground Resistance Tester Model 6471 GlobalTestSupply www. -
Page 60: Replacing 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 recharged from a 12V car outlet with a special charging unit. - 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 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...
-
Page 62: Troubleshooting
S may also indicate that is too high. The flashing of resistance R terminal ES may also indicate that the cur- rent I measured by the clamp is too low. Ground Resistance Tester Model 6471 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com... -
Page 63: Out Of Limits Indicators
After the measurement has started there are indicators of when: • Values R and/or R are too high, • Measurement current I or I is too low, • The instability of the measurement is large. Ground Resistance Tester Model 6471 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com... - Page 64 > 42 V on the terminals of the device. (4) You should change to manual mode and modify the measurement voltage and/or frequency to make a valid measurement (when the NOISE symbol is no longer illuminated). Ground Resistance Tester Model 6471 GlobalTestSupply www.
-
Page 65: Error Messages
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. There are 3 categories of errors: •... -
Page 66: Appendix A: Glossary Of Terms
An auxiliary electrode used for measuring the potential of the reference earth. The voltage, which is proportional to the resistance of the earth connection, is measured between this electrode and the earth electrode. Ground Resistance Tester Model 6471 GlobalTestSupply www. -
Page 67: Glossary
R d, A : distances to be programmed to calculate resistivity according to the measuring method used mΩ : measurement of low resistance /continuity Ground Resistance Tester Model 6471 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com... - Page 68 : resistance of the earth loop measured with the "2 clamps" LOOP function : value of the R-Act resistance (PASS for "passive" PASS measurement with interference current circulating in the Ground Resistance Tester Model 6471 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...
- Page 69 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 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...
-
Page 70: Repair And Calibration
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: � Ground Resistance Tester Model 6471 GlobalTestSupply www. .com Find Quality Products Online at:... -
Page 71: Limited Warranty
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. IMPORTANT WARRANTY NOTE: By registering online within 30 days of the purchase date, your warranty will be extended to 3 years.