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Ground Resistance Tester Model 6422 (Digital, 3-Point)

The Digital Ground Resistance Tester Model 6422 performs 2-pole and 3-pole ground resistance measurement. This direct reading tester is auto-ranging, so it automatically seeks out the optimum measurement range. The Model 6422 is easy to use - simply connect the leads, press to measure, and read. The large LCD also indicates low battery status, overrange, and lead reversals.

The Model 6424 comes with 3 safety color coded terminals to aid in easy hookup, measure voltage up to 700V AC/DC and AC current up to 70A with the optional current probe Model MN72.

The Model 6424 is powered by 6 x AA rechargeable NIMH batteries. The Ground Resistance Tester Model 6424 is also available in complete Kits (150ft and 300ft).


Ground Tester | Ground Rod Tester | Earth Ground Tester | Ground Continuity Tester | Ground Wire Tester

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
6422 2135.55 Ground Resistance Tester Model 6422 (Digital, 3-Point) $525.00 In stock at factory. Find a Distributor
6422 Kit-150ft 2135.56 Ground Resistance Tester Model 6422 Kit-150 ft (Digital, 3-Point) $1,025.00 Out of Stock Consult Factory for Availability
Model6422
Cat. #2135.55
DescriptionGround Resistance Tester Model 6422 (Digital, 3-Point)
List Price$525.00
In stock at factory. Find a Distributor
Model6422 Kit-150ft
Cat. #2135.56
DescriptionGround Resistance Tester Model 6422 Kit-150 ft (Digital, 3-Point)
List Price$1,025.00
Out of Stock Consult Factory for Availability

Model 6422 Kit (150 ft) - Cat. #2135.56: (Ground Resistance Tester Model 6422 and Test Kit For 3-Point Testing cat. #2135.35.)  Kit 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 5, Spaded Lugs and [1] 100 ft AEMC® Tape Measure)

Print
ELECTRICAL
Voltage
Range
Resolution
Accuracy
Current
Range
Ground Resistance (2P Mode)
Measurement Range 0.05-99.99Ω 80.0-999.9Ω 0.800-9.999kΩ 8.00-50.00kΩ
Resolution 0.01Ω 0.1Ω
Intrinsic Uncertainty ± (2%R + 10 ct) ± (2%R + 2 ct) ±(2%R + 1 ct) ±(2%R + 1 ct)
Ground Resistance (3P Mode)
Measurement Range 0.50-99.99Ω 80.00-999.99Ω 0.800-2.000kΩ
Resolution 0.01Ω 0.1Ω
Intrinsic Uncertainty ± (1%R + 10ct) ± (1%R + 2ct) ± (1%R + 1ct)
Measurement Frequency 128Hz or 256Hz (automatically selected)
No-load Voltage ±10 V peak
Maximum Test Current 20mA
Measurement Mode One shot or continuous
Data Storage
Calculation
GENERAL
Display Backlit LCD
Measurement Mode 2P (Ω), 3P (Ω)
Power Supply (6) AA Alkaline batteries)
Battery Life > 2,000 x 3P earth measurements at 100 Ω
Dimensions 8.78 x 4.96 x 2.75" (223 x 126 x 70mm)
SAFETY
Safety Ratings EMC: IEC 61326-1; IEC 61010-2-030 / 600 V CAT IV
Model Cat. # Description List Price Quantity/Status Distributor 
Stock Check
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) $520.00 Out of Stock Consult Factory for Availability
5000.04 Red replacement wire (150 ft) on reel for ground resistance tester kits (models 3620, 3640, 4620, 4630, 6422 & 6424) $143.00 Out of Stock Consult Factory for Availability
5000.07 Blue replacement wire (150 ft) on reel for ground resistance tester kits (models 3620, 3640, 4620, 4630, 6422 & 6424) $143.00
5000.92 5000.92 - Calibration Checker for Ground Tester Models 6422 & 6424 $65.00
Model
Cat. #2135.35
DescriptionGround 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)
List Price$520.00
Out of Stock Consult Factory for Availability
Model
Cat. #5000.04
DescriptionRed replacement wire (150 ft) on reel for ground resistance tester kits (models 3620, 3640, 4620, 4630, 6422 & 6424)
List Price$143.00
Out of Stock Consult Factory for Availability
Model
Cat. #5000.07
DescriptionBlue replacement wire (150 ft) on reel for ground resistance tester kits (models 3620, 3640, 4620, 4630, 6422 & 6424)
List Price$143.00
Model
Cat. #5000.92
Description5000.92 - Calibration Checker for Ground Tester Models 6422 & 6424
List Price$65.00

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