AEMC 4610 4-Point Ground Resistance Testers

AEMC 4610 4-Point Ground Resistance Testers

Ù to 1999 Ohm, and is Auto-Ranging, so it automatically seeks out the optimum measurement range. Easy to use — simply connect the leads, Press-to-Measure and read.  The large LCD (nearly 3/4" high) is easy to read, and also indicates low battery status, overrange, and testlead shorts and lead reversals. Three LED indicators on the front panel continuously warn the user of measurement problems to ensure accurate and reliable tests.  The Model 4610 is fuse protected up to >250VAC against Accidental connection to live circuits. In the event of a system fault, it can withstand 250VAC with spikes of 3000VAC or 1000VDC.
The heavy duty ABS case is O-ring sealed against dust and water and the Press-to-Measure button is also sealed.  Model 4610 is battery powered for convenient use in remote field applications. Mechanical and safety specifications, such as vibration and drop test, meet or exceed IEC standards, to ensure safe and reliable field use.  The Ground Resistance Tester Model 4610 is a rugged, easy-to-use instrument ideal for maintenance crews performing numerous tests. The Model 4610 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.

• Fall-of-Potential method
• Measures ground resistance (2- and 3-Point) and soil resistivity (4-Point)
• Step voltage tests and touch potential measurements
• Auto-Ranging: automatically selects the optimum range
• Designed to reject high levels of noise and interference
• Extremely simple to operate: connect - press - read
• LED on faceplate informs operator of high input noise, high auxiliary rod resistance and fault connections
• Battery powered
• Rugged dustproof and rainproof field case
• May be used also for continuity tests on bonding
• Color-coded terminals
• Double Insulation
• CE Mark

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 (the outline of the part of equipment in contact with the earth) is comparable to the size of the ground to be tested.
• Two-point tests for continuity tests on bonding or on pre-established grounds. This test is commonly performed in urban environments where proper auxiliary electrode placement may be obscured by confined real estate. Measurements are referenced against a good local ground conductor.

Specifications: