Four Point Ground Resistance Tester
$75.00 – $1,180.00
The Ground Resistance Tester Model 4630 is rugged, easy-to-use and is ideal for maintenance crews performing 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. It exceeds mechanical and safety specifications for shock, vibration and drop tests specified in IEC standards.
Rental Rates: A prep fee will be assessed for this item.
| Daily | Weekly | Monthly |
| $75 | $340 | $1180 |
- Ground Integrity Measurement
- Measures soil resistivity (4-Point)
- Measures ground resistance (2- and 3-Point) Fall-of-Potential method
- Step voltage tests and touch potential measurements •
- Auto-Ranging: automatically selects the optimum resistance range and test current
- Designed to reject high levels of noise and interference
- Extremely simple to operate: connect/press/hold/read
- LED on faceplate informs operator of high input noise, high auxiliary rod resistance and faulty connections
- Large easy-to-read backlit display
- AC powered with rechargeable NiMH battery pack (Model 4630)
- Rugged dustproof and watertight field case
- Color-coded terminals
- Includes (2) 500 ft. color-coded leads on spools (red/blue), (2) 100 ft. color-coded leads (hand tied) (green/black), (1) 30 ft. lead (green), (2) 5 ft. color-coded leads (red/blue), (4) 14.5″ T-shaped auxiliary ground electrodes, [1] set of five spaded lugs, (1) 100 ft. tape measure and user manual
- Range (Auto-ranging): 0 to 2000Ω
- Resolution: 0.01 to 1Ω
- Test Current: 0.1 to 10mA
- Accuracy Typical: ±(2% Reading +1ct)
- Open Voltage: 42V peak
- Withstanding Voltage: 250VAC or 100VDC
- Operating Frequency: 128Hz square wave
- Interference: Rejection to high levels of interference voltage (DC, 50/60Hz, harmonics)
- Maximum Auxiliary Rod Resistance:
- Current Circuit:
3kΩ @ 20Ω range
30kΩ @ 200Ω range
50kΩ @ 2000Ω range - Voltage Circuit:
50kΩ on all ranges
- Current Circuit: