Description click to view larger image The AEMC Digital Ground Resistance Testers Models 6422 and 6424 performs 2-pole and 3-pole ground resistance measurements. This direct reading tester is auto-ranging, so it automatically seeks out the optimum measurement range. They are easy to use – simply connect the leads, press to measure and read. The large LCD also indicates low battery status, over range, and lead reversals. The Model 6424 comes with 3 safety color-coded terminals to aid in an easy hookup, measure voltage up to 700V AC/DC and AC current up to 70A with the optional current probe Model MN72. It is powered by 6 x AA rechargeable NIMH batteries. The Ground Resistance Tester Model 6424 is also available in complete Kits (150ft and 300ft). Features Simple, one button operation – eliminates errors in testing Test button turns green when measurement is stable 2P resistance/ 3P ground resistance measurement up to 50kΩ for highly resistive terrain Large back lit digital display – easier to read in all lighting conditions Automatic hold function – retains last measurement after the reading stabilizes ensuring the measurement is valid Automatic test frequency selection between 128 and 256 Hz, providing stable results in adverse environments Powers up in 2 pole mode – automatically checks the injector lead connection when connected to the H auxiliary rod Convenient storage of the three measurements along with the average and % deviation – easily determines proper test results Built in test lead compensation capability – improves the accuracy of low resistance measurements CAT IV 600V rated for a high level of operator safety Checks AC/DC voltage and AC leakage current (Model 6424) Stores 52, 62 and 72% measurements – eliminates errors in determining the ground resistance (Model 6424) Leakage current measurement from 0.5mA to 70A (Model 6424) Battery recharging via AC adapter, USB or vehicle DC port b (Model 6424) Color coded leads and terminals provide fast, error-free connection hook-up Detects and prohibits hazardous voltage measurement Direct access to all functions, even when wearing work gloves Rugged water resistance case, for all terrain use Built-in display stand to prop up instrument for seeing the display better when placed on the ground AEMC-6422-6424-Brochure AEMC-6422-6424-Datasheet
