AEMC Model 6472 Ground Resistance Tester

Features

• 4-Pole (4-Point) Fall-of-Potential measurement for very low resistance measurements with manual or automatic 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 Hz for test accuracy in electrically noisy environments
• Earth coupling testing
• Selectable test voltage 16 or 32 V up to 250 mA test current
• 4-Point soil resistivity measurement with automatic calculation of Rho and user selection of Wenner or Schlumberger 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 w/GroundFlex adapter model 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 data storage, real-time display, analysis, report generation and system configuration
• Auto-off power management
• Automatic recognition of all electrode connections and their reisistance value
• Stores up to 512 complete test results in internal memory
• Optically isolated USB communication
• Rechargeable NiMH batteries from wall charger or vehicle power
• Rugged dustproof and rainproof field case

AEMC model 6472 multi-function ground resistance tester is a portable measurement instrument designed to measure bond resistance, ground resistance (with and without clamps), soil resistivity, earth coupling and step & touch potential. When used in combination with the GroundFlex Adapter Model 6474, power transmission tower and tower leg ground resistance testing is also available. AEMC model 6472 multi-function ground resistance tester measures from 0.01 to 99.99 kΩ and is auto-ranging, automatically seeking out the optimum measurement range, test frequency and test current. The adjustable test frequency (either manual or automatic) from 41 to 5078 Hz test voltage provides rejection of high levels of interference, allowing it to be used under difficult conditions such as the presence of high stray currents that normally affect accuracy. AEMC model 6472 multi-function ground resistance tester is CAT IV rated to 50 V and is overvoltage protected to more than 250 V AC against accidental connection to live circuits. The voltage is also displayed on the screen. In the event of a system fault, the model 6472 can withstand 250 V AC. Up to 512 test results can be stored in internal memory for later recall to the display or downloaded to a PC using DataView software (included) for automatic report generation, automatic fall-of-potential plot generation, frequency/ resistance plots and much more. AEMC Model 6472 Multi-Function Ground Resistance Tester ships complete with: Carrying bag Optical USB cable Power adapter/power cord NiMh battery Workbook CD DataView software AEMC Model 6472 Multi-Function Ground Resistance Tester kit (300 Ft) ships complete with: Model 6472 ground resistance tester and accessories listed above (2) 300 ft. color-coded leads on spools(red/blue) (2) 100 ft. color-coded leads (green/black) (4) T-shaped aux. ground electrodes (5) spaded lugs (1) 100 ft. tape measure Carrying bag AEMC Model 6472 Multi-Function Ground Resistance Tester kit (500 Ft) ships complete with: Model 6472 ground resistance tester and accessories listed above (2) 500 ft. color-coded leads on spools(red/blue) (2) 100 ft. color-coded leads (green/black) (1) 30 ft. lead (green) (4) T-shaped aux. ground electrodes (5) spaded lugs (1) 100 ft. tape measure Carrying bag AEMC Model 6472 Multi-Function Ground Resistance Tester Specifications 3-Point measurement Range (Auto-Ranging) 0.09 Ω to 99.9 kΩ Resolution 0.01 Ω to 100 Ω Test voltage Nominal 16 or 32 V RMS user selectable Resistance measurement frequency 41 to 5078 Hz automatic or user selectable Test current Up to 250 mA Accuracy ±2% of reading + 1 ct @ 128 Hz 2 Clamp Measurement Range 0.10 to 500 Ω Resolution 0.01 Ω to 1 Ω Measurement frequency Auto: 1367 Hz; Manual: 128 Hz - 1367 Hz - 1611 Hz - 1758 Hz Soil resistivity 4-Point Measurement Test method Wenner or Schlumberger selectable with automatic calculation in Ω-meters or Ω-feet. Range (Auto-Ranging) 0.01 to 99.99 kΩ; Max: 999 kΩm Resolution 0.01 to 100 Ω Test voltage 16 or 32 V user selectable Frequency From 41 to 128 Hz selectable External voltage measurement Range (Auto-Ranging) 0.1 to 65.0 V AC/DC - DC to 440 Hz Accuracy 2% of reading + 1 ct Resistance measurement (Bond testing) Measurement type 2-pole (with lead resistance compensation) or 4-pole (Kelvin sensing) user selectable Range (Auto-ranging) 2-pole 0.01 Ω to 99.9 kΩ; 4-pole 0.001 Ω to 99.99 kΩ Accuracy ±2% of reading + 2 cts Test voltage 16 V DC (+, - or auto polarity) Test current Up to 250 mA max Data Storage Memory capacity 512 test results