grounding resistor tester / battery
The ERT 580 is an earth resistance tester, manufactured by Tepcel. This product is operated with three earth ranges, such as 20, 200, 2,000 Ohm that can measure down to 0.01 Ohm. It is equipped with 2mA RMS one test current and 2 or 3 terminal measurement for testing earth electrode. It also has large LCD display, including data hold function.
This indicates if resistance of auxiliary spikes resistance is within range. It has calibration with supplied test leads. It can operate with a 200-V AC voltage, provided with low power and is easy to use. This is constructed with lighter weight, compact and small structure, which is in "O-Ring" sealed case. It is made with indicating open loop having 1 MSD on display and LED light off, including low battery signal.