Description
| 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 | 0.800-2.000kΩ | – |
| Resolution | 0.01Ω | 0.1Ω | 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 | |||
| 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 | |||
User Manuals
Datasheets
Model 6422 (Digital, 3-Point) - English
Model 6422 Kit - 150ft (Digital, 3-Point) - English
Modelo 6422 (digital, 3 puntos) - Spanish
Kit del medidor de resistencia de tierra modelo 6422 - 45 m (150 pies) (digital, 3 puntos) - Spanish
Brochures
Comparison Charts
Application Notes
Battery Recharge Time / Rechargeable NiMH Notice
Tiempo de recarga de las baterías / Aviso de NiMH recargable
Workbooks
Forms
Fall-of-Potential Report - PDF
Fall-of-Potential Report - Excel
Soil Resistivity Made Easy - PDF
Ground Testing Nomograph - PDF
Ground Testing Nomograph Example
Stored Measurement Results Form
Soil Resitivity Report - Excel
Calculators
Technical Bulletins