The AEMC 6416 (2141.01) Clamp-On Ground Resistance Tester measures grounding electrodes and grid resistance without the use of auxiliary rods. This unit can be used in multi-grounded systems without disconnecting the ground system under test. The Model 6416 simply clamps around the ground conductor or rod and measures the resistance to ground. By performing measurements on intact ground systems, the user can also verify the quality of the grounding connections and bonds. Resistance and continuity of grounding loops around pads and buildings can also be measured.

The Model 6416 includes a current measurement function. The unit’s high sensitivity enables measurement of leakage current flowing to ground or circulating in ground loops from 0.2 milliamps to 40 amps and resistances from 0.01 to 1500 ohms. This measurement range makes this ground resistance tester ideal for use in a wide range of applications, including power distribution systems, substations, and telecommunications networks.

The Model 6416 features a large and easy-to-read LCD screen that displays measurements in real-time, allowing the user to quickly and efficiently evaluate ground resistance levels. The unit also includes a built-in data logging feature that allows the user to store up to 300 measurements for future analysis. This data logging feature enables the user to conduct field surveys where retrieving and analyzing the readings at a later time is necessary.

Battery life information is displayed at power-up of the Model 6416 and the Auto Power-OFF feature can be enabled for power management. Additional features include the large OLED (Organic Light Emitting Diode) display that ensures high readability of data. The Buzzer and Auto Power-OFF features can be disabled at any time. The Model 6416 is also equipped with an alarm function and data storage function. In the Alarm mode, the probe will audibly and visually indicate when the reading is beyond an input set point. The user can also have the alarm activate above or below the set point. This alarm feature permits quick field checks where only pass or fail readings are required.

The Model 6416 also includes the two new features of test frequency selection and touch voltage indication. The ability to select the test frequency provides more accurate measurements in inductive environments. Displaying the voltage derived from current and resistance measurements provides an extra level of safety for the user, indicating a potentially dangerous touch condition.

The device is built to withstand harsh environments, featuring a rugged, impact-resistant design that can withstand drops, dust, and water splashes. The unit is powered by a long-lasting, rechargeable battery that provides up to 1,000 measurements on a single charge and ensures reliable operation throughout the workday.