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AEMC 4620 Ground Resistance Tester, 2000 Ω, battery-powered

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$2,441.88
SKU:
4620
Condition:
New
Availability:
2 to 3 Weeks
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AEMC 4620 Ground Resistance Tester, 2000 Ω, battery-powered

$2,441.88
AEMC Instruments 4620 Offers

Rugged and easy to use, this ground resistance tester exceeds mechanical and safety specifications for shock, vibration, and drop tests specified in IEC standards. Additionally, this digital tester rejects high levels of interference, making it ideal for use under challenging conditions, such as high stray currents that affect accuracy.

Features

  • 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 the faceplate informs the operator of high input noise, high auxiliary rod resistance, and faulty connections
  • Large easy-to-read backlit display
  • Battery powered
  • Rugged dustproof and watertight field case
  • Color-coded terminals

Applications

  • Measure ground rod and grid resistance
  • Use in multi-grounded systems without disconnecting the ground under test
  • Measure resistance and continuity of grounding loops around transformer pads and buildings
  • Measure leakage current flowing to the ground or circulating in ground loops
  • Conduct quick field checks
  • Conduct field surveys and retrieve and analyze readings from stored data
  • Measure the earth resistance of the type of single rod or small ground grids often found in remote telecommunication switching stations
  • Measure ground electrode resistance on lightning protection equipment
  • Measure the earth electrode resistance of equipment in recreational areas, especially public swimming pools
  • Test electrode resistance of installed ground rods and grids at new construction sites before utility power is supplied
  • Test earth electrode resistance of grounded towers and counterpoises at cellular phone remote installations and power transmission towers
  • Three-point measurement of large grounding grids, counterpoises, ground mats, and grounded equipment
  • Locate areas of lowest soil resistivity which is essential for achieving an economical grounding installation


AEMC Instruments 4620 Specifications

Specifications

Range (Auto-ranging)0 to 2000 Ω
Resolution0.01 to 1 Ω
Test Current0.1 to 10 mA
Accuracy (typical)±(2% reading + 1 count)
Open Voltage42 V peak
Withstanding Voltage250 V AC or 100 V DC
Operating Frequency128 Hz square wave
InterferenceRejection to high levels of interference voltage (DC, 50/60 Hz, harmonics)
Maximum Auxiliary Rod ResistanceCurrent circuit:3 kΩ at 20 Ω range30 kΩ at 200 Ω range50 kΩ at 2000 Ω rangeVoltage circuit:50 kΩ on all ranges
Response Time4 to 8 seconds for a stabilized measurement
Display200 counts, 7 segment LCD, backlight
Power Source8 x 1.5 V C alkaline batteries
Battery Life4500 15-second tests, low battery indicator
Environmental ConditionsOperating 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)IP65 (closed); IP63 (open)
EMCEN 61326-1
Safety ComplianceEN 61557, EN 61010-1, 30V CAT III, Pollution Degree 2
Fuse Protection0.1 A, >250 V, (0.25 x 1.25) in; 30 kA interrupt capacity
Dimensions10.8 x 9.7 x 5" (273 x 247 x 127 mm)
Weight6.28 lbs (2.85 kg) with battery


What's included with the AEMC Instruments 4620
  • Ground Resistance Tester
  • 8 x C-Cell Batteries
  • User Manual
  • Two-Year Warranty


AEMC 4620 Ground Resistance Tester, 2000 Ω, battery-powered. Great savings PLUS Free Shipping when you buy now from EquipTestPro.com.
Shipping & Return Policy — EquipTestPro
Last Updated: February 1, 2026
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Shipping & Return Policy

Everything you need to know about orders, cancellations, refunds, and delivery.

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Section 01
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Section 01
Order Cancellation Rights

You are entitled to cancel your Order within 30 days of receipt without providing a reason, subject to the processing fee structure described below.

The cancellation deadline is 30 days from the date on which you received the Goods, or on which a third party appointed by you (other than the carrier) takes possession of the delivered product.

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Section 02
Cancellation Processing Fees

The following fee structure applies to all cancellations. Please review carefully before requesting a cancellation.

Customer-Initiated
10%

A processing fee of 10% of the total order value will be withheld from your refund to cover payment processing, handling, and administrative costs.

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If we cancel your order due to item unavailability, no processing fee will be withheld. You receive a full refund of the amount paid.

Refunds will be issued using the same payment method as the original purchase. No additional fees beyond those described above will be applied.

Section 03
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Refund Timeline

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We will process refunds no later than 14 days from the day we receive the returned Goods, using the same payment method as your original purchase.

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Gift Returns

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If the Goods were not marked as a gift at purchase, or if the gift giver had the order shipped to themselves first, the refund will be issued to the original purchaser.

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