AEMC 6470-B Multifunction Ground Resistance Tester

3- and 4-Point measurement with manual or automatic frequency selection ( even during measurement) from 40 up to 500Hz, > 120dB noise reduction Selectable test voltage of 16 or 32VACRMS True RMS ( AC, DC, AC/ DC) voltage measurement from 200mV to 50V ( 15Hz to 1kHz) Automatic measurement of auxiliary electrodes Soil resistivity measurement using Wenner or Schlumberger test method 2- and 4-Point DC resistance measurement with automatic polarity change ( Bonding test function) Auto-off for power management Automatic recognition of all electrode connections and their resistance Memory stores up to 512 test results USB communication Remote operation of all measurement functions using DataView® software Automatic report generation AC powered with rechargeable NiMH batteries Rugged dustproof and rainproof field case — IP54 in closed position IEC 61557 part 4 and part 5 Includes DataView® software for data storage, real-time display, analysis and report generation Specifications: 2 Clamp Measurement Range : 0.10 to 500& Resolution : 0.01 to 1& Measurement Frequency : Auto: 1367Hz, Manual: 128Hz-1367Hz-1611Hz-1758Hz 3-Point Measurement Range ( Auto-Ranging) : 0.09& to 99.9k& Resolution : 0.01& to 100& Test Voltage : Nominal 16 or 32VRMS user selectable Resistance Measurement Frequency : 41 to 513Hz automatic or user selectable Test Current : Up to 250mA Accuracy : ± 2% of Reading + 1ct @ 128Hz External Voltage Measurement Range ( Auto-Ranging) : 0.1 to 65.0Vac/ dc – DC to 440Hz Accuracy : ± 2% of Reading + 1ct 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& to 99.9k& ; 4-Pole 0.001& to 99.99k& Accuracy : ± 2% of Reading + 2cts Test Voltage : 16Vdc ( + , - or auto polarity) Test Current : Up to 250mA max Data Storage Memory Capacity : 512 test results Communication : Optically Isolated USB Power Source : 9.6V rechargeable battery pack ( included) Recharging Source : 110/ 220 50/ 60Hz external charger with 18Vdc, 1.9A output or 12V vehicle power