Ground Resistance Tester Digital 4-Point - AEMC 4620

AEMC 4620 - Ground Resistance Tester Digital 4-Point

Catalog 2130.43

• Model 4620 Ground Resistance Tester (Digital, 4-Point)
• 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

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:  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

Tech Specs

Ground Testers/3 Pole / 4 Pole Ground Testers Template

• Type: 3 Pole, 4 Pole
• Display (3 Pole Testers): Digital
• Ground Resistance Range:  2000 Ohms (2 K Ohms)
• Operating Frequency: 128 Hz
• Accuracy: 2% of Reading +/- 1ct
• Measuring Current: 10 mA
• Measuring Voltage: 42 V
• Measuring Frequency: 128 Hz
• Soil Resistivity: Yes
• Stakeless Capability: No
• Power Supply: Battery
• CAT Rating: III
• Optional Ground Kit Included: No
• Auto Ranging: No

Earth Tester