AEMC 4620-150 4-Point Digital Ground Resistance Meter Kit

Model4620-150 MFG Part2135.19
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AEMC 4620-150 4-Point Digital Ground Resistance Meter Kit

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Quick Overview

AEMC Ground Tester 4620-150 4-Point Ground Earth Resistance Tester is also available in complete kit form 4620-150, which includes the meter to measure earth resistance, two 150 ft color-coded leads on spools (red and blue), one 30 ft lead (green), two 14.5" T-shaped auxiliary ground electrodes, one set of five spaded lugs, 100 ft tape measurer and carrying bag.
Characteristics
Characteristics: AEMC Ground Tester 4620-150 4-Point
  Extremely simple to operate: connect - press - read
  Designed to reject high levels of noise interference
  Auto-Ranging: automatically selects the optimum range
  Step voltage tests and touch potential measurements
  Measures ground resistance (2- and 3-Point) Fall-of-Potential method
  Measures soil resistivity (4-Point) method
  LED on faceplate informs operator of high input noise, high auxiliary rod resistance and fault connections
  Battery powered
  Rugged, dustproof and rainproof field case
  Can also be used for continuity tests on bonding
  Color-coded terminals
  Test Kit includes tester, two 150 ft color-coded leads on spools (red and blue), one 30 ft lead (green), two 14.5" T-shaped auxiliary ground electrodes, one set of five spaded lugs, 100 ft tape measurer and carrying bag.
Description

AEMC Ground Tester 4620-150 4-Point Ground Earth Resistance Tester performs ground resistance and soil resistivity tests. This direct reading testers measures from 0 to 2000Ω, and is auto-ranging, so it automatically seeks outs the optimum measurement range.

The Digital Ground Resistance Tester 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 called out 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.

Specifications
Specifications: AEMC Ground Tester 4620-150 4-Point
Measurement Ranges 0.00 to 19.99Ω; 20.0 to 199.9Ω; 200 to 1999Ω
Resolution 10mΩ (0.00 to 19.99Ω); 100mΩ (20.0 to 199.9Ω); 1Ω (200 to 1999Ω)
Open Voltage below 42V peak for all ranges
Resistance Frequency 128Hz square wave (for all ranges)
Test Current 10mA (0.00 to 19.99Ω); 1mA (20.0 to 199.9Ω); 0.1mA (200 to 1999Ω)
Accuracy ±2% of reading ±1ct(0.00 to 19.99Ω); ±2% of reading ±1ct (20.0 to 199.9Ω); ±2% of reading ±3cts (200 to 1999Ω)
Auxiliary Electrode Influence Max Res. in Current Circuit: 3kΩ (0.00 to 19.99Ω); 30kΩ (20.0 to 199.9Ω); 50kΩ (200 to 1999Ω)
Power Source Eight C Cell Alkaline Batteries
Applications
Applications: AEMC Ground Tester 4620-150 4-Point
  Three-Point measurements of resistance to ground of ground rods and grids. Three-Point measurements are generally used when the electrode or grid can be easily disconnected, if corrosion is suspected, or where ground faults are unlikely to occur
  Four-Point tests or soil resistivity measurements. Locating areas of lowest soil resistivity is essential for achieving an economical grounding installation
  Touch potential measurements, an alternative to 3-Point tests. A recommended test when the ground cannot be disconnected, where ground faults are highly likely, or when the "footprint" of grounded equipment is comparable to the size of ground to be tested
Accessories
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Technical Specs for AEMC 4620-150 4-Point Digital Ground Resistance Meter Kit:

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