AEMC’s has introduced two new Ground Resistance Tester Models 6416 and 6417 that measure ground rod and grid resistance and impedance without the use of auxiliary rods. Clamp-on ground resistance testers can be used in multi-grounded systems without disconnecting or de-energizing the ground system under test it. The Models 6416 and 6417 simply clamps around the grounding electrode or conductor and measures the resistance to ground. By performing measurements on intact ground systems, the user also verifies the quality of the grounding connections and bonds. Resistance and continuity of grounding loops around pads and buildings may also be measured.
Three new features unique to AEMC® are:
• Test frequency selection provides more accurate results in inductive environments
• Touch voltage indication indicates the voltage on the display along with a warning buzzer when the voltage derived from current and resistance measurements detect a potentially dangerous touch condition
• Loop resistance indication alerts the user to the fact that the measurement may not be ground resistance
Both models include a high sensitivity measurement function enabling measurement of leakage current flowing to ground or circulating in ground loops from 0.2mA to 40A and resistances from 0.01 to 1500Ω. Both models offer battery life information at power-up and Auto Power Off power management.
For more information, visit www.aemc.com.