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AEMC 6472 2135.51 Multi-Function Ground Resistance Tester Instruments
 
Product Information

6472 Datasheet 6472 Datasheet
  6472 Users Manual 6472 Users Manual
  Ground Resistance Calculator Ground Resistance Calculator
  Ground Resistance Testing Ground Resistance Testing
  Fall of Potential vs. Clamp On Fall of Potential vs. Clamp On
  Soil Resistivity Soil Resistivity
  Ground Comparison Chart Ground Comparison Chart

Your Price:
$3,722.88
Choose Options and Quantity
NIST Calibration NIST Calibration [+$94.00]
Accessories AC current probe MN82 [+$299.00]
AC current probe SR182 [+$369.00]
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AEMC 6472 2135.51 Multi-Function Ground Resistance Tester

The AEMC 6472 Multi-Function Ground Resistance Tester is a portable measurement instrument engineered to measure bond resistance, soil resistivity, ground resistance (with and without clamps), step and touch potential, and earth coupling.

 

When used in conjunction with the GroundFlex Adapter 6474 (exclusively a factory supplied product), Power Transmission Tower and Tower Leg Ground Resistance testing is also available.

 

The Model 6472 can measure from 0.01 to 99.99k Ohms and is auto ranging, automatically finding the best measurement range, test current and frequency. The adjustable test frequency (whether set manually or automatically) from 40 to 5078 Hertz test voltage provides rejection of high levels of interference, enabling it to be operated  under difficult conditions such as the presence of high stray currents that normally affect accuracy.

Up to a maximum of 512 test results can be stored using internal memory for later review to the display or download to a PC using the included DataView software for Frequency/Resistance Plots, Automatic Fall-of-Potential Plot Generation, Automatic Report Generation, and much more.

 

6472 Features

  • 4 Pole (4 Point) Fall of Potential measurement for extremely low resistance measurements with automatic or manual frequency selection and automatic lead compensation
  • 3 Point Fall of Potential measurement
  • 3 Point earth coupling measurement
  • Manual or automatic frequency scan from 40 to 513 Hertz for test accuracy in electrically noisy environments
  • Earth coupling testing
  • Selectable test voltage 16 or 32 Volts up to 250 milliAmp test current
  • 4 Point soil resistivity measurement with automatic calculation of Rho and user selection of Schlumberger or Wenner test method
  • 2 and 4 Wire DC resistance measurement (Bond testing) with automatic polarity reversal
  • Ground Resistance with 2 clamps - no auxiliary rods
  • Ground Resistance of Pylons with the GroundFlex Adapter 6474 and GroundFlex sensors allow the system to measure leakage current and ground resistance of tower legs without disconnecting the overhead ground conductor.
  • DataView software for analysis, real time display, data storage, system configuration, and report generation
  • Auto off power management
  • Automatic recognition of all electrode connections and their resistance value
  • Stores a maximum of 512 complete test results
  • Optically isolated USB communication
  • Rechargeable NiMH batteries from AC charger or vehicle charger
  • Rugged rainproof and dustproof field

 

 

Applications

  • 3 Point measurements of resistance to ground of grids and ground rods. 3 Point measurements are used when electrode or grid can be easily disconnected.
  • 4 Point tests or soil resistivity measurements. Locating areas of lowest soil resistivity is essential for achieving a feasible grounding installation.
  • Touch and step potential testing measurements. These tests are best where ground faults are highly likely to occur, when the ground cannot be disconnected, or when the “footprint” of grounded equipment (the outline of the part of equipment in contact with earth) is comparable to the size of the ground to be tested.
  • 2 or 4 Wire tests for continuity tests on bonding or on grounding systems. Test is a DC resistive test using 250 mA or more and is used to check bonding of all connection points on the ground system.
  • Earth coupling measurement and display. Used to estimate the influence of two earth resistance systems that are not connected to each other.

 

 

Specifications
ELECTRICAL
3-Pole Measurement
Range (Auto-Ranging) 0.09 to 99.9k Ohms
Resolution 0.01 to 100 Ohms
Test Voltage / Current Nominal 16 or 32 Volts RMS user selectable; Up to 250 milliAmps
Resistance Measurement Frequency 41 to 5078 Hertz user selectable or automatic selection
Accuracy ±2 percent of Reading + 1ct at 128 Hertz
Earth Coupling Measurement Yes
4-Pole Measurement
Range (Auto-Ranging) 0.001 to 99.99k Ohms
Resolution 0.001 to 10 Ohms
Test Voltage 16 or 32 Volts user selectable
Resistance Measurement Frequency From 41 to 5078 Hertz selectable
Accuracy ±2 percent of Reading + 1cts at 128 Hertz
NOTE 4 Pole Measurement with 1 Clamp SR182 (same specification as the 4 Pole measurement)
4 Pole Measurement with 1 Clamp MN182 (same specification as the 4 Pole measurement + 5 percent)
2 Clamp Measurement
Range (Auto-Ranging) 0.01 to 500 Ohms
Resolution 0.01 to 1 Ohms
Frequency 128, 1367, 1611, 1758 Hertz
Accuracy with SR182 ±10 percent of Reading + 1cts
Accuracy with MN182 ±20 percent of Reading + 2cts
Soil Resistivity 4 Pole Measurement
Test Method
Wenner or Schlumberger selectable with automatic calculation
of test results in Ohm-meters, Ohm-cm or Ohm-feet
Range (Auto-Ranging) 0.01 to 99.99k ohms; P Max: 999kOhmsm (display in kOhmft is not possible)
Resolution 0.01 to 100 Ohms
Test Voltage 16 or 32 Volts user selectable
Frequency From 41 to 128 Hertz selectable
Accuracy ±2 percent of Reading + 1cts
Earth Potential Measurement
Range (Auto-Ranging) 0.01 mV to 65 Volt
Resolution 0.01 to 10 mV
Accuracy ±2 percent of Reading + 1ct at 128 Hertz
Frequency From 41 to 128 Hertz selectable
Accuracy 2 percent of Reading + 1cts
External Voltage Measurement
Range (Auto-Ranging) 0.1 to 65.0 Volts AC/DC – DC to 440 Hertz
Accuracy ±2 percent of Reading + 1cts
Input Impedance 1.2M Ohms
External Current Measurement
Range (Auto-Ranging) with SR182 0.01 to 40.0 Amps – 16 to 400 Hertz
Accuracy at 50 to 99Hz ±5 percent of Reading + 2cts from 0.01 to 100mA; ±10 percent + 2cts from 0.1 to 40A
Range (Auto-Ranging) with MN182 0.01 to 9.99A – 16 to 400 Hertz
Accuracy at 50 to 99Hz ±7 percent of Reading + 2cts from 0.01 to 100mA; ±15 percent + 2ctsfrom 0.1 to 10A
Resistance Measurement (Bond Testing) IEC 61557/4
Measurement Type 2 Pole (with lead resistance compensation) or 4 Pole (Kelvin sensing) user selectable
Range (Auto-Ranging) 2 Pole 0.01 to 99.9k Ohms; 4-Pole 0.001 to 99.99k Ohms
Accuracy ±2 percent of Reading + 2cts
Test Voltage / Current 16 V dcdc (+, - or auto polarity); Up to 250mA max
Data Storage
Memory Capacity 512 test results
Communication Optically Isolated USB
Automatic Report Generation Yes — Tabular listings, Fall-of-Potential plots and Frequency/Resistance plots
Power Source 9.6 Volt rechargeable battery pack
Recharging Source 110/220 50/60Hz external charger with 18Vdcdc, 1.9A output or 12 Volt vehicle power
MECHANICAL
Test Lead Connection 4 millimeter recessed banana jacks
Mechanical Shock Per EN 61557
Vibration Test Per EN 61557
Drop Test Per EN 61557
Dielectric Test 3kV 50/60Hz
Dimensions
10.7 x 9.76 x 5.12 inches
272 x 248 x 130 millimeters
Weight 7.5 pounds (3.5 kg)
Case Polypropylene
Index of Protection IP53 with cover closed
DISPLAY
Display Type Custom 256 segment multi-line LCD
Backlight Blue electroluminescent
COMMUNICATION
Software DataView graphing, analysis and reporting software
ENVIRONMENTAL
Operating Temperature
14 to 122 degrees F
-10 to 55 degrees C)
Storage Temperature
-40 to 158 degrees F
-40 to 70 degrees C
SAFETY
Safety Rating EN61010-1 50V Cat IV, Pollution Degree 2
Double Insulation Yes
CE Mark Yes
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