Disclosure : This site contains affiliate links to products. We may receive a commission for purchases made through these links.

AEMC 2130.44, 4630 4-Point AC Powered Digital Ground Resistance Tester

The Digital Ground Resistance Tester Model 4630 performs ground resistance and soil resistivity tests. This direct reading tester measures from 0 to 2000Ω, and is auto-ranging, so it automatically seeks outs the optimum measurement range. The Model 4630 is rugged, easy-to-use and is ideal for maintenance crews performing numerous tests. It exceeds mechanical and safety specifications for shock, vibration and drop tests specified in IEC standards. It is designed to reject high levels of interference, so it can be used under difficult conditions such as high stray currents that normally affect accuracy. The Model 4630 is powered by 9.6V, 3.5 Ah NiMH rechargeable batteries. A built-in recharge circuit, powered from 120/230V 50/60Hz line, also provides for testing while recharging. Includes: Digital Ground Resistance Tester User manual It is designed to reject high levels of interference, so it can be used under difficult conditions such as high stray currents that normally affect accuracy. The Model 4630 is powered by 9.6V, 3.5 Ah NiMH rechargeable batteries. A built-in recharge circuit, powered from 120/230V 50/60Hz line, also provides for testing while recharging. Features: Measures soil resistivity (4-Point) method Measures ground resistance (2- and 3-Point) Fall-of-Potential method Step voltage tests and touch potential measurements Auto-Ranging: automatically selects the optimum range Designed to reject high levels of noise interference Extremely simple to operate: connect – press – read LED on faceplate informs operator of high input noise, high auxiliary rod resistance and fault connections AC powered with rechargeable NiMH batteries Rugged, dustproof and rainproof field case Can also be used for continuity tests on bonding Color-coded terminals Applications: Three-Point measurements of resistance to ground of ground rods and grids. Three-Point measurements are generally used when the electrode or grid can be easily disconnected, if corrosion is suspected, or in circumstances where ground faults are unlikely to occur Four-Point tests or soil resistivity measurements. Locating areas of lowest soil resistivity is essential for achieving an economical grounding installation Touch potential measurements, an alternative to 3-Point tests in evaluating electrical safety. This test is recommended when the ground cannot be disconnected, where ground faults are highly likely to occur, or when the “footprint” of grounded equipment is comparable to the size of the ground to be tested.

Related Products :