US 
CAN - en Order #: 6424-AEMC
Mfg #: 2135.57
AEMC Instruments 6424 Ground Resistance Tester
Order #: 6424-AEMC
Mfg #: 2135.57
Product Highlights
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 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).
| ELECTRICAL | ||||
| Voltage | ||||
| Range | 0.1-600VAC/DC | |||
| Resolution | 0.1V | |||
| Accuracy | ±(1%R + 1ct) | |||
| Current | ||||
| Range | 0.5-60.00Aac (requires optional MN72 probe) | |||
| 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 | 1Ω | 0Ω |
| 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 | 0.800-9.999kΩ | 8.00-50.000kΩ |
| Resolution | 0.01Ω | 0.1Ω | 1Ω | 10Ω |
| 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 | |||
| GENERAL | ||||
| Display | Backlit LCD | |||
| 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 | ||||
| Safety Ratings | EMC: IEC 61326-1; IEC 61010-2-030 / 600 V CAT IV | |||