AEMC Ground Resistance Tester Model 6470-B

AEMC Ground Resistance Tester Model 6470-B The Digital Ground Resistance Tester Model 6470-B performs grounding resistance, earth coupling measurement, soil resistivity and bonding tests. This direct reading tester measures from 0.01 to 99,000????, and is auto-ranging, automatically seeking out the optimum measurement range test current and test frequency. Easy-to-use ?? simply connect the leads, select the test mode, Press-to-Measure and read the results. Up to 512 test results can be stored in internal memory for later recall to the display or download to a PC for analysis and hard copy reports. 4-Point Earth Resistance Measurement Range (Auto-Ranging) 0.011???? to 99.99k???? Resolution 0.001 to 10???? Accuracy ?(2% Reading +1ct) Test Voltage 16V or 32V; 41 to 513Hz Test Current Up to 250mA 3-Point Earth Resistance Measurement Range (Auto-Ranging) 0.09???? to 99.9k???? Resolution 0.01 to 100???? Accuracy ?(2% Reading +1ct) Test Voltage 16V or 32V; 41 to 513Hz? Test Current Up to 250mA Soil Resistivity 4-Point Measurement Test method Wenner or Schlumberger selectable with automatic calculation Range (Auto-Ranging) 0.01???? to 99.9k????; ???? max: 999k????m Resolution 0.01 to 100???? Accuracy (Typical) ?(2% Reading +1ct) Test Voltage 16V or 32V; 41 to 128Hz selectable DC Resistance Measurement (Bond Testing)2-Pole (with lead resistance compensation) or 4-Pole (Kelvin sensing) Range (Auto-Ranging) 2-pole: 0.12???? to 99.9k????4-pole: 0.020???? to 99.99k???? Resolution 2 -pole: 0.01 to 100????4-pole: 0.001 to 10???? Accuracy (Typical) ?(2% Reading +2ct) Test Voltage 16VDC; (+, - or auto polarity) Test Current Up to 250mA External Voltage Measurement Range 0.1 to 65VAC/DC DC, 15 to 440Hz Accuracy ?(2% Reading +1ct) General Features Memory 512 measurements (64KB) Communication USB 2.0 optically isolated, DataView software included Power Source 9.6V rechargeable battery pack with external 110/220V charger Battery Life 1500 tests typical in automatic mode Dimensions 10.7 x 9.80 x 5.12?? (272 x 248 x 130mm) Weight 7 lbs (3.2kg) with battery Case UL V0 Polypropylene Operating Temperature 32? to +113?F (0? to +45?C) Storage Temperature -40? to 158?F (-40? to +70?C) Relative Humidity Up to 90% Ingress Protection (IP) IP 53 with cover closed EMC EN 61326-1 Safety Compliance IEC 61010-1, EN 61557, 50V CAT IV, Pollution Degree 2