NOTE: Our complete catalog is not available for direct online purchase, refer to the Status Column for purchasing options. Items that do not have an Add to Cart button must be purchased from an Authorized Distributor.
| Model | Cat. # | Description | List Price | Quantity/Status | Distributor Stock Check |
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| 4630 | 2130.44 | Ground Resistance Tester Model 4630 | $1,859.00 | In stock at factory. Find a Distributor |
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| 4630 Kit-150ft | 2135.22 | Ground Resistance Tester Model 4630 Kit-150ft | $2,389.00 | Consult Factory for Availability |
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| 4630 Kit-300ft | 2135.23 | Ground Resistance Tester Model 4630 Kit-300ft | $2,529.00 | Consult Factory for Availability |
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| 4630 Kit-500ft | 2135.24 | Ground Resistance Tester Model 4630 Kit-500ft | $2,689.00 | Consult Factory for Availability |
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Model 4630 - Cat. #2130.44: (Ground Resistance Tester Model 4630 only), Includes a soft carrying bag, rechargeable battery, AC power cord and a user manual.
Model 4630 Kit (150 ft) - Cat .#2135.22: (Ground Resistance Tester Model 4630 and Test Kit for 3-Point Testing) Includes carrying bag, (2) 150 ft color-coded leads on spools (red/blue), (1) 30 ft lead (green), (2) 5 ft color-coded leads (red/blue), (2) 14.5" T-shaped auxiliary ground electrodes, (1) set of five spaded lugs, (1) 100 ft tape measure and a user manual.
Model 4630 Kit (300 ft) - Cat. #2135.23: (Ground Resistance Tester Model 4630 and Test Kit for 4-Point Testing) Includes carrying bag, (2) 300 ft color-coded leads on spools (red/blue), (2) 100 ft color-coded leads (hand-tied) (green/black), (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 a user manual.
Model 4630 Kit (500 ft) - Cat. #2135.24: (Ground Resistance Tester Model 4630 and Test Kit for 4-Point Testing) Includes carrying bag, (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 a 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 |
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| Response Time | 4 to 8 seconds for a stabilized measurement |
| Display | 200 counts, 7 segment LCD, backlight |
| Power Source | 9.6V NiMH rechargeable battery pack; 120/230V 50/60Hz |
| 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) | 7.38 lbs (3.35kg) |
| 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 |
User Manuals
Models 4620 and 4630 - English
Models 4620 and 4630 Multi-lingual (CA France version)
Ground Resistance Calibration Checker
Datasheets
Model 4630 - English
Model 4630 Kit – 150 ft - English
Model 4630 Kit – 300 ft
Model 4630 Kit – 500 ft - English
Modelo 4630 - Español
Kit del medidor de resistencia de tierra modelo 4630 – 45 m (150 pies) - Español
Kit del medidor de resistencia de tierra modelo 4630 – 90 m (300 pies) - Español
Kit del medidor de resistencia de tierra modelo 4630 – 150 m (500 pies) - Español
Brochures
Ground Resistance Testers Brochure
AEMC® Instruments Product Line Brochure
AEMC® Instruments Product Line Brochure (FR CAN)
Comparison Charts
Application Notes
Battery Recharge Time / Rechargeable NiMH Notice
Tiempo de recarga de las baterías / Aviso de NiMH recargable
App-Touch-Step-Potential
App-Touch-Step-Potential_Español
Why Measure Soil Resistivity?
Choosing a Ground Tester
Megohmmeter Calibration Checker and Ground Resistance Checker
Forms
Fall-of-Potential Field Report - PDF
Fall-of-Potential Report - Excel
Soil Resistivity Made Easy - PDF
Ground Testing Nomograph - PDF
Ground Testing Nomograph Example
Soil Resitivity Report - Excel
Slope Method Calculation - Automated way of calculating the S electrode placement when using the slope method.
Calculators
Grounding Electrode Resistance Calculator
Grounding Calculations and Charts - Excel
Slope Method Calculation - Automated way of calculating the S electrode placement when using the slope method
Three Measurement Method
Technical Bulletins
Videos
Choosing the Right Ground Resistance Tester
Understanding Ground Resistance Testing
| Model | Cat. # | Description | List Price | Quantity/Status | Distributor Stock Check |
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2117.76 | Bag - Small Flat Black Canvas Bag for Ground/Accessories Dimensions: 17 x 6.5 x 2.75" |
$41.00 |
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2119.82 | Multi-purpose Large Canvas Bag Dimensions: 22 x 10.5 x 12" |
$166.00 |
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2130.59 | 25Ω Calibration Checker for Ground Testers Model 3620, 3640, 4610, 4620 and 4630. | $89.00 |
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2130.60 | 100 ft Tape Measure for use with Ground Resistance Tester Kits | $45.00 |
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2135.35 | Ground Resistance Test Kit for 3-Point Testing - 150ft Test Kit for 3-Point Testing, Kit (Carrying Bag, [2] 150 ft Color-coded Leads on Spools (Red/Blue), [1] 30 ft Lead (Green), [2] 5 ft Color-coded Leads (Red/Blue), [2] 14.5" T-shaped Auxiliary Ground Electrodes, [1] Set of 5, Spaded Lugs and [1] 100 ft AEMC® Tape Measure) | $595.00 |
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2135.36 | Ground Resistance Test Kit for 4-Point Testing - 300ft Test Kit for 4-Point Testing, Kit (Carrying Bag, [2] 300 ft Color-coded Leads on Spools (Red/Blue), [2] 100 ft Color-coded Leads (hand tied-Green/Black), [2] 5 ft Color-coded Leads (Red/Blue), [4] 14.5" T-shaped Auxiliary Ground Electrodes, [1] Set of 5, Spaded Lugs and [1] 100 ft AEMC® Tape Measure) | $760.00 |
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2135.37 | Ground Resistance Test Kit for 4-Point Testing - 500ft Test Kit for 4-Point Testing, Kit (Carrying Bag, [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 5, Spaded Lugs and [1] 100 ft AEMC® Tape Measure) | $890.00 |
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2135.38 | Test Kit for 3-Point testing (supplemental for 4-Point testing) - includes two 100 ft color-coded leads (hand tied - green and black), one 30 ft lead (green) and two 14.5" T-shaped auxiliary ground electrodes and carrying bag. | $278.00 |
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2135.39 | Set of 2, 14.5" T-shaped Ground Rods for use with all Ground Testers (except clamp-ons) | $48.00 |
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2135.43 | Inverter - 12VDC to 120VAC 200 Watt for Vehicle Use (use with Ground Testers, Megohmmeters & Micro-ohmmeters) | $90.00 |
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2135.85 | Set of 2 reel caddies for use with ground kit spools | $124.00 |
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2960.21 | Replacement 9.6V Rechargeable Battery Pack for Models 1060, 5050, 5060, 5070, 6505, 4630, 6470/6470-B, 6471 & 6472 | $187.50 |
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2970.12 | Fuse - Set of 5, 0.1A, 250V (fast blow), 6 x 32mm (0.25 x 1.25") for Models 3620, 3640, 4500, 4600, 4610 | $16.25 | Consult Factory for Availability |
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5000.01 | Green replacement wire (30 ft hand-tied) for ground resistance tester kits | $33.00 |
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5000.02 | Red replacement wire (500 ft) on reel for ground resistance tester kits (models 4620, 4630, 6470-B, 6471 & 6472) | $229.00 |
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5000.03 | Red replacement wire (300 ft) on reel for ground resistance tester kits (models 4620, 4630, 6470-B, 6471 & 6472) | $195.00 |
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5000.04 | Red replacement wire (150 ft) on reel for ground resistance tester kits (models 3620, 3640, 4620, 4630, 6422 & 6424) | $154.00 |
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5000.05 | Blue replacement wire (500 ft) on reel for ground resistance tester kits (models 4620, 4630, 6470-B, 6471 & 6472) | $229.00 |
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5000.06 | Blue replacement wire (300 ft) on reel for ground resistance tester kits (models 4620, 4630, 6470-B, 6471 & 6472) | $195.00 |
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5000.07 | Blue replacement wire (150 ft) on reel for ground resistance tester kits (models 3620, 3640, 4620, 4630, 6422 & 6424) | $154.00 |
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5000.08 | Green replacement wire (100 ft hand-tied) for ground resistance tester kits | $105.00 |
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5000.09 | Black replacement wire (100 ft hand-tied) for ground resistance tester kits | $105.00 |
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5000.10 | Set of 5, replacement screw-on spaded lugs for ground resistance tester kits | $16.00 |
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5000.14 | Power cord 115V for Micro-ohmmeters, Megohmmeters, Power Instruments, Oscilloscopes & Ground Testers | $10.00 |
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5000.18 | Empty replacement reel for ground kits (holds up to 500ft of wire) Outer Ø: 7.5" - Inner Ø: 3.75" - Width: 4.56" | $22.50 |
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5000.34 | Lead - set of 2, color-coded (red/blue) leads for use with AEMC® ground tester reels incorporating banana jack input | $25.00 |
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5000.74 | Ground resistance calibration checker - 5/25Ω for use with Models 6470/6470-B, 6471, and 6472 |
$188.50 |
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5100.02 | Latches - Replacement set of 2 for use with AEMC Yellow cases | $13.25 |
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