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Auto-ranging capability
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Direct reading display
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Measures earth ground resistance and soil resistivity
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High interference rejection for difficult field conditions
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Exceeds IEC mechanical and safety specifications
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Compact and portable design
Digital Ground Resistance Tester Model 4620
$0.00
AEMC Model 4620 digital ground resistance tester measures earth ground resistance and soil resistivity for electrical safety professionals in high-stray-current environments.
In stock
The Digital Ground Resistance Tester Model 4620 performs earth ground resistance and soil resistivity tests with direct reading capability. This auto-ranging tester measures from 0 to 2000Ω and automatically seeks the optimum measurement range. Features include ±(2% Reading +1ct) accuracy, 42V peak open voltage, 128Hz square wave operating frequency, and exceptional interference rejection for use in difficult conditions with high stray currents. The rugged design exceeds IEC mechanical and safety specifications for shock, vibration, and drop tests. Powered by 8 C-cell batteries with 4500 15-second test capacity. Available as standalone unit or in complete kits with test leads (150ft, 300ft, 500ft configurations).
Description
Digital Ground Resistance Tester Model 4620
The Digital Ground Resistance Tester Model 4620 performs earth ground resistance and soil resistivity tests with direct reading capability. This auto-ranging tester measures from 0 to 2000Ω and automatically seeks the optimum measurement range. Features include ±(2% Reading +1ct) accuracy, 42V peak open voltage, 128Hz square wave operating frequency, and exceptional interference rejection for use in difficult conditions with high stray currents. The rugged design exceeds IEC mechanical and safety specifications for shock, vibration, and drop tests. Powered by 8 C-cell batteries with 4500 15-second test capacity. Available as standalone unit or in complete kits with test leads (150ft, 300ft, 500ft configurations).
Features
Specifications
- 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
- Maximum Auxiliary Rod Resistance Voltage Circuit
- 50kΩ on all ranges
- 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
