AEMC-4630
AEMC 4630 Kits
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AEMC 4630 4-Point Ground Resistance Testers 
The Digital Ground Resistance Tester Model 4630 performs ground resistance and soil resistivity tests. This direct reading testers 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 called out 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. ( Please Refer to Individual PDF Data Sheets for Specifications and Kit Options)
 AEMC 4630 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
Ground Resistance Test 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.
- Kit includes 4630 (Please see Kit description in 6470 section ablove)
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AEMC 4630 4-Point Ground Resistance Tester 2130.44 |
Range |
20Ω / 200Ω / 2000Ω |
Measurement Range |
0.00 to 19.99Ω / 20.0 to 199.9Ω / 200 to 1999Ω |
Resolution |
10mΩ / 100mΩ / 1Ω |
Test Current |
10mA / 1mA / 0.1mA |
Accuracy |
±2% of Reading ± 1ct / ±3% of Reading ± 3cts |
Auxiliary Electrode Influence |
Current Circuit: 200Ω; Voltage Circuit: 2000Ω / Current Circuit: 30kΩ; Voltage Circuit: 50kΩ / Current Circuit: 50kΩ; Voltage Circuit: 50kΩ |
Open Voltage |
<42V peak |
Resistance Measurement Frequency |
128Hz square wave |
Interference |
Rejects high levels of interference voltage (DC, 50 to 60Hz, harmonics): DC voltage in series with X: 20V; AC voltage in series with Y: 13V peak; AC voltage in series with Z: 32V peak |
Response Time |
Approximately 6 seconds for a stabilized measurement |
Voltage Withstand |
250VAC with spikes of 3000VAC or 1000VDC |
Power Source |
120/230V 50/600Hz Rechargeable 9.6V, 3.5 Ah NiMH batteries |
Battery Life |
1800 15-second measurements |
Fuse Protection |
0.1A, 250v, 0.25 X 1.25"; 30kA Interrupt Capacity |
Mechanical Specifications |
Display |
3-1/2, 0.71" (18mm) high; 2000-count; electroluminescent blue backlight - LCD also indicates over-range, test lead shorts and lead reversals |
Connection |
Color-coded terminals accept lugs with min. gap of 6mm or standard 4mm banana jacks |
LED Indication |
Three LEDs indicate high input noise, high auxiliary rod resistance, open leads, blown fuse |
Operating Temperature |
14° to 131°F (-10° to 55°C), 20 to 90% RH |
Storage Temperature |
-40° to 158° F (-40 to 70° C), 0 to 90% RH with batteries removed |
Dimensions |
9.45 x 7.28 x 4.33" (240 x 185 x 110mm) |
Weight |
7.75 lbs (3.5kg) |
Case |
Heavy duty o-ring sealed field case |
Colors |
Case: safety yellow; Front panel: gray |
Dielectric Test |
3kV, 50/60Hz, 1 min. between four interconnected measuring terminals and any external metal ground |
Environmental |
O-ring sealed against dust and water to IP50 |
Safety Reference Specifications |
Safety Ratings |
EN 61010-1, Cat. III, Pollution Degree 2, 42V |
Agency Approvals |
CE Mark |
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Model |
Description |
Data |
MSRP |
Price |
Buy |
| AEMC 4630 2130.44 |
4-Point Ground Resistance Tester |
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$1799 |
$1749 |
Buy Now |
| AEMC 4630 Kit-150 2135.22 |
4-Point Ground Resistance Tester |
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$2199 |
$2149 |
Buy Now |
| AEMC 4630 Kit-300 2135.23 |
4-Point Ground Resistance Tester |
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$2299 |
$2249 |
Buy Now |
| AEMC 4630 Kit-500 2135.24 |
4-Point Ground Resistance Tester |
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$2399 |
$2349 |
Buy Now |
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