Ground Resistance Testers

Test ground resistance using the 2 clamp method (no auxiliary rods needed) 2- and 4-Pole Bond Resistance/Continuity measurement (DC Resistance) with automatic polarity reversal 3-Pole Fall-of-Potential measurement with manual or automatic frequency selection 4-Pole Soil Resistivity measurement with automatic calculation of Rho (r) and user selection of the Wenner or Schlumberger test method 3-Pole Earth Coupling measurement Manual and Automatic frequency scan from 41 to 513Hz for optimum test accuracy in electrically noisy environments Selectable test voltage of 16 or 32V up to 250mA of test current Auto-off power management Automatic recognition of all electrode connections and their resistance value Stores up to 512 complete test results in internal memory Optically isolated USB communication Remote set up and operation of all measurements using DataView® software Rechargeable NiMH batteries from wall charger or vehicle power Rugged dustproof and rainproof field case – IP54 rated in closed position Grounding standards IEC 61557 parts 4 and 5 compliant Includes DataView® software for data storage, real-time display, analysis, report generation and system configuration

Now includes two additional test voltages of 10 and 60 Volts that can be manually selected. This optimizes it’s use in sensitive areas and improves its ability to test in poor soil conditions, as well as conduct deep soil resistivity testing. 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 513Hz for test accuracy in electrically noisy environments Earth coupling testing Selectable test voltage 16 or 32V up to 250mA 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 with the 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. Includes 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 resistance 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 > Each Unit Includes 2-Point, 3-Point, 4-Point Bond Test Digital Rechargeable Battery Dataview Software

GroundFlex Adapter Model (6474) and the Ground Resistance Tester (6472) Only system on the market capable of testing ground resistance of individual power transmission tower legs, as well as total resistance without disconnecting the overhead ground wire Testing both ground resistance of tower legs(individually and total) and overhead ground wires Tests leakage current through the tower legs and tests at frequencies up to 5kHz to profile impedance, which is important to characterize for lightning strikes > Each Unit Includes Rechargeable NiMH Batteries Optical USB Cable Power Adapter 110/240V with power cord 115V US Two 500ft. Color-coded leads on spools(red/blue) Two 100ft. color-coded leads(hand tied) One 30ft. lead Four T-Shaped auxiliary ground electrodes Set of five spaded lugs One 100ft. AEMC Tape Measure Dataview software Ground tester workbook CD Carrying bag for meter Carrying bag for kit Hard carrying case Prodcut warranty and registration card User Manual

Now includes two additional test voltages of 10 and 60 Volts that can be manually selected. This optimizes it’s use in sensitive areas and improves its ability to test in poor soil conditions, as well as conduct deep soil resistivity testing. 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 513Hz for test accuracy in electrically noisy environments Earth coupling testing Selectable test voltage 16 or 32V up to 250mA 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 with the 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. Includes 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 resistance 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 > Each Unit Includes Ground Tester Carrying Bag Optical USB Cable Power Adapter 110/240V Power Cord 115V US Plug Ground Kit (300ft) User Manual / Warranty Card NiMh Battery -installed Ground Tester Workbook CD DataView® Software

Now includes two additional test voltages of 10 and 60 Volts that can be manually selected. This optimizes it’s use in sensitive areas and improves its ability to test in poor soil conditions, as well as conduct deep soil resistivity testing. 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 513Hz for test accuracy in electrically noisy environments Earth coupling testing Selectable test voltage 16 or 32V up to 250mA 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 with the 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. Includes 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 resistance 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 > Each Unit Includes Instrument Two 500 ft color-coded leads on spools (red and blue) Two 100 ft color-coded leads (green and black) One 30 ft lead (green) Four 14.5 T-shaped auxiliary ground electrodes One set of five spaded lugs 100 ft tape measurer Carrying bag

THE IDEAL MULTI-PURPOSE GROUND RESISTANCE TESTER. The Model 5004 is designed to measure the resistance of grounding electrodes or grids, utilizing the fall-of-potential test method. The Model 5004 is perfectly suited to perform soil- resistivity measurements, touch-potential measurements, touch/step potential measurements, and display earth-voltage readings. Phase-locked loop and switched-filter design allows for smooth operation even in electrically noisy environments. Standard features include a rugged aluminum alloy case, three resistance ranges, an earth voltage measurement function, four-pole terminal connections, line or battery power capability, and a direct reading digital display. The unit is supplied with a power cord for charging internal batteries, auxiliary electrodes, test cables and connectors for performing various types of tests, a manual and a NIST traceable certificate of calibration. Features Rugged, compact design 3 or 4 pole testing ability Earth voltage testing mode Line or battery operation Active electrical-noise-suppression circuitry Large LCD indications Resistance Ranges: 0-20Ω?2-200Ω?0-2000Ω Resolution: To 0.001Ω Test Current: 10 mA up to 20Ω. 1 mA on 2000Ω range. Resistance Accuracy (percent of range): 0-20Ω, ±3% ±1 digit 0-200Ω and 0-2000Ω, ±1.5% ±1 digit AC Voltage Measurement Range: 0-19.99V, with 0.01V Resolution Voltage Measurement Accuracy (percent of range): 1-19.99V, ±3% ±1 digit Operating Environment: 32 to 104°F and to 85% RH Power supply: 120 VAC ±10%, 60 Hz or Eight (8) AA Batteries Weight: 3.1 lbs. Dimensions: 8.7 x 7.9 x 4.2 > Each Unit Includes A rugged aluminum alloy case. With manual, power cord, interconnecting cable, ground cable, and NIST Traceable Certificate of Calibration.

Accurate ground resistance measurement from 0.025 to 1500 Ohms TRMS current measurement including leakage current Accurate readings regardless of power quality in less than 10 seconds Continuity beep if the resistance is lower than 40.00 Ohms Simple and easy to use, no test leads or auxiliary electrodes necessary Data logging capability 116 records Individual data point recording User selectable High & Low ohm audible alarms Auto power off (can be disabled) Low battery indicator Large LCD display > Each Unit Includes Test Leads 9V Battery Installed Users Manual Soft Carrying Pouch

Poor grounding is dangerous and contributes to unnecessary downtime and increases the risk of equipment failure. The Amprobe GP-2A Earth Ground Resistance Tester provides accurate and reliable measurements for ground resistance and soil resistivity to assure the safety and performance of an electrical system. The GP-2A is complete with PC software that allows the user to download critical recorded measurements and to create professional reports for customers. Measures earth ground resistance 3 point (fall of potential) or 2 point tests Automatically calculates resistivity 4 point test Automatic voltage measurement prevents false measurements Automatically applies three testing frequencies for the most accurate readings Test leads, auxiliary electrodes and software are included for complete instrument Autoranging 999 internal memory locations to store measurements RS-232 download to a personal computer > Each Unit Includes Users manual Batteries (installed) Connection cables 4 ground stakes PC software USB cable Carrying case