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

• 6472 Multi-Function Ground Resistance Tester
• 2 - 500 foot red and blue color coded leads on spools
• 2 - 100 foot green and black color coded leads
• 1 - Green 30 foot lead
• 4 - 14 1/2 inch T-shaped auxiliary ground electrodes
• set of 5 spaded lugs
• 100 foot long tape measure
• Soft carry bag

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.