C.A 6471: 5-in-1 earth and resistivity tester
Ergonomic, comprehensive and accurate, the C.A 6471 offers direct access to all the measurements on the front panel by means of a rotary switch. Compact because it has been designed for on-site use, the C.A 6471 is rugged and leakproof. To simplify connection, the 4 terminals for connecting the stakes are colour-coded to help identify them.The C.A 6471 includes a large backlit LCD screen and a battery which is rechargeable with an external charger connected to the mains or to a vehicle cigarette lighter.
It is equipped with a function for direct, ordered storage of the measurement results. A USB communication output can be used to export the data onto a PC in order to process them with the Ground Tester Transfer software.
The C.A 6471 guarantee the reliability of measurements carried out with:
- Traditional stake-based methods
- Self-diagnosis when each measurement starts, so that any faults liable to affect the measurements (bad connections or presence of disturbance signals) are indicated
- Large measurement ranges: 0.001 W to 100 kW
- Adjustment of the measurement frequency between 41 Hz and 512 Hz
The C.A 6471 are equipped with sophisticated calculation functions:
- For earth coupling measurement, all you have to do is carry out the 3 measurements necessary, one after the other, and the testers then calculate the coupling coefficient automatically
- When measuring soil resistivity, the distances used for the measurement can be programmed to allow the instruments to calculate r automatically with the Wenner or Schlumberger methods.
Technical Datasheet Earth & Resistivity Tester C.A 6471
Model | C.A 6471 |
Reference | P01126505 |
Manufacturer - Origin |
Chauvin Arnoux - France |
Specifications | |
Earth resistance Measurement with 2 clamps | |
Range | 0.01 Ω to 500 Ω |
Resolution | 0.01 Ω to 1 Ω |
Measurement frequency | Auto: 1367 Hz ; Manual: 128 Hz - 1367 Hz - 1611 Hz - 1758 Hz |
Earth resistance 3-pole method | |
Range | 0.01 Ω to 99.99 kΩ |
Resolution | 0.01 Ω to 100 Ω |
Test voltage | 16 V or 32 Vrms rated voltage, selectable by user |
Measurement frequency | 41 Hz to 512 Hz, automatic or manual |
Test current | Up to 250 mA |
Accuracy | ±2 % of value + 1 count to 128 Hz |
Coupling measurement | Yes |
Earth resistance 4P measurements / 4P + measurements with clamps | |
Range | 0.001 Ω to 99.99 kΩ |
Resolution | 0.001 Ω to 100 Ω |
Test voltage | 16 V or 32 V selectable |
Measurement frequency | 41 Hz to 512 Hz automatic or manual |
Test current | Up to 250 mA |
Accuracy | ±2 % of value ±1 count |
Soil resistivity measurement | |
Measurement method | Wenner or Schlumberger method with automatic calculation of results and display in Ω-meter |
Range | (automatic selection) 0.01 to 99.99 kΩ; ρ max. 999 kΩm |
Resolution | 0.01 Ω to 100 Ω |
Test voltage | 16 V or 32 V, selectable |
Measurement frequency | 41 Hz to 128 Hz, selectable |
External voltage measurement | |
Range | (automatic selection) 0.1 to 65.0 VAC/DC – DC to 450 Hz |
Accuracy | ±2 % of value + 1 count |
Resistance measurement/ continuity and bounding | |
Type of measurement | 2 wire or 4 wire method, selectable by user |
Range | (automatic selection) 2 wire: 0.01 Ω to 99.9 kΩ – 4 wire: 0.001 Ω to 99.99 kΩ |
Accuracy | ±2 % of value + 2 counts |
Test voltage | 16 VDC (polarity +, - or auto) |
Test current | > 200 mA max. for R < 20 Ω |
Data storage | |
Storage capacity | 512 test results |
Communication | Optically-isolated USB |
Other features | |
Power supply | rechargeable NiMH battery |
Battery-charger power supply | External power supply with 18 VDC / 1.9 A output or 12 VDC vehicle power supply |
Electrical safety | 50 V CAT IV, IEC 61010 & IEC 61557 |
Protection | IP53 |
Dimensions / Weight | 272 x 250 x 128 mm / 3.2 kg |