AEMC INSTRUMENTS Ground Resistance Tester Model 6422 is a digital 3-point fall-of-potential meter for measuring ground resistance with auto-ranging capability and direct LCD display.
The Digital Ground Resistance Tester Model 6422 performs resistance and 3-pole ground resistance measurements with direct reading and auto-ranging capability. Simply connect the leads, press to measure, and read results on the large backlit LCD. Features include safety color-coded terminals for easy hookup, low battery status indicator, overrange indication, and powered by 6 AA alkaline batteries. Available as standalone unit or complete kit with 150 ft test leads and accessories.
| Performance | |
| Ground Resistance 2P Mode - Measurement Range 1 | (0.05-99.99) Ω |
| Ground Resistance 2P Mode - Measurement Range 2 | (80.0-999.9) Ω |
| Ground Resistance 2P Mode - Measurement Range 3 | (0.800-9.999) kΩ |
| Ground Resistance 2P Mode - Measurement Range 4 | (8.00-50.00) kΩ |
| Ground Resistance 2P Mode - Resolution 1 | 0.01 Ω |
| Ground Resistance 2P Mode - Resolution 2 | 0.1 Ω |
| Ground Resistance 2P Mode - Resolution 3 | 1 Ω |
| Ground Resistance 2P Mode - Resolution 4 | 0 Ω |
| Ground Resistance 3P Mode - Measurement Range 1 | (0.50-99.99) Ω |
| Ground Resistance 3P Mode - Measurement Range 2 | (80.00-999.99) Ω |
| Ground Resistance 3P Mode - Measurement Range 3 | (0.800-2.000) kΩ |
| Ground Resistance 3P Mode - Resolution 1 | 0.01 Ω |
| Ground Resistance 3P Mode - Resolution 2 | 0.1 Ω |
| Ground Resistance 3P Mode - Resolution 3 | 1 Ω |
| Measurement Frequency | 128 Hz or 256 Hz (automatically selected) |
| Measurement Mode | One shot or continuous |
| Display | Backlit LCD |
| Power | |
| No-load Voltage | ±10 V peak |
| Power Supply | (6) AA Alkaline batteries |
| Battery Life | > 2,000 x 3P earth measurements at 100 Ω |
| Physical | |
| Dimensions | (8.78 x 4.96 x 2.75) in (223 x 126 x 70) mm |
| Other | |
| Model | 6422 |
| Catalog Number | 2135.55 |
| Ground Resistance 2P Mode - Intrinsic Uncertainty 1 | ± (2 % R + 10 ct) |
| Ground Resistance 2P Mode - Intrinsic Uncertainty 2 | ± (2 % R + 2 ct) |
| Ground Resistance 2P Mode - Intrinsic Uncertainty 3 | ±(2 % R + 1 ct) |
| Ground Resistance 2P Mode - Intrinsic Uncertainty 4 | ±(2 % R + 1 ct) |
| Ground Resistance 3P Mode - Intrinsic Uncertainty 1 | ± (1 % R + 10 ct) |
| Ground Resistance 3P Mode - Intrinsic Uncertainty 2 | ± (1 % R + 2 ct) |
| Ground Resistance 3P Mode - Intrinsic Uncertainty 3 | ± (1 % R + 1 ct) |
| Maximum Test Current | 20 mA |
| Safety Ratings | EMC: IEC 61326-1; IEC 61010-2-030 / 600 V CAT IV |
Calibration, repair and maintenance for your detection instruments.