The Digital Ground Resistance Tester Model 6424 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 6424 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 600V AC/DC and AC current up to 60A 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).
|Accuracy||±(1%R + 1ct)|
|Range||0.5-60.00AAC (requires optional MN72 probe)|
|Ground Resistance (2P Mode)|
|Intrinsic Uncertainty||± (2%R + 10 ct)||± (2%R + 2 ct)||±(2%R + 1 ct)||±(2%R + 1 ct)|
|Ground Resistance (3P Mode)|
|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||Stores the 52%, 62% and 72% 3P resistance measurements|
|Calculation||Calculates average and % deviation of the three saved readings|
|Measurement Mode||V, I, 2P (Ω), 3P (Ω)|
|Power Supply||(6) NiMH rechargeable batteries,charging time approx. 6 hrs|
|Battery Life||>1,500 x 3P earth measurements at 100 Ω|
|Dimensions||8.78 x 4.96 x 2.75" (223 x 126 x 70mm)|
|Safety Ratings||EMC: IEC 61326-1; IEC 61010-2-030 / 600 V CAT IV|