Product Highlights
The Digital Ground Resistance Tester Model 4620 performs earth 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 4620 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 4620 is also available in complete Kits (150ft, 300ft and 500ft).
- 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: 250V AC or 100V DC
- 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:
- Response Time: 4 to 8 seconds for a stabilized measurement
- Display: 200 counts, 7 segment LCD, backlight
- Power Source: 8 x 1.5V C alkaline batteries
- Battery Life: 4500 15-seconds tests, low battery indicator
- Dimensions: 10.8 x 9.7 x 5.0” (273 x 247 x 127mm)
- Weight (with Battery): 6.28 lbs (2.85kg)
- Operating Temperature: 14° to 131°F (-10° to 55°C)
- Storage Temperature: -40° to 158°F (-40° to 70°C)
- Relative Humidity: Up to 90%
- Ingress Protection (IP): IP 65 (closed); IP 63 (open)
- EMC: EN 61326-1
- Safety Compliance: EN 61557, EN 61010-1, 30V CAT III, Pollution Degree 2
Each Unit Includes
- Ground Resistance Tester Model 4620 only
- Soft carrying case
- (8) C-cell battery
- User manual
