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C.A 6470N

Product catalog summary

Overview: The C.A 6470N and C.A 6471 are advanced earth and resistivity testers designed for comprehensive and accurate measurements in various terrains. The C.A 6470N offers four functionalities: Earth, Resistivity, Coupling, and Continuity, while the C.A 6471 adds a fifth function: Selective Earth measurement.

Key Features:

Both models feature a giant backlit LCD screen and color-coded connection terminals to prevent errors.
Direct access to configuration and measurements via a switch.
Rugged, leak-proof, and site-proof design.
Automatic calculation of resistivity and coupling.

Measurement Methods:

3P Method: Traditional method using rods to measure earth resistance, suitable for all environments, measuring up to 100 kΩ and disturbance voltages of 60 Vpeak.
4P and Selective 4P Method: Suitable for low earth resistances, allows selective measurements with a clamp-on ammeter, saving time by avoiding disconnection of earth resistance.
Wenner and Schlumberger Methods: Used for soil resistivity measurements, automatically calculated by the testers.
Earth Loop Measurement with 2 Clamps: Provides accurate measurements without auxiliary rods, using two clamps to inject and measure signals.

Technical Specifications:

3P Method: Range 0.01 Ω to 99.9 kΩ, Resolution 0.01 to 100 Ω, Frequency 41 to 512 Hz.
4P Method: Range 0.001 to 99.99 kΩ, Resolution 0.001 to 10 Ω.
Earth Measurement with 2 Clamps: Range 0.01 to 500 Ω, Frequency Auto: 1611 Hz, Manual: 128 Hz, 1367 Hz, 1611 Hz, 1758 Hz.
Resistivity: Range 0.01 to 99.9 kΩ, Frequency 41 to 128 Hz.
DC Resistance: 2 or 4 wires, Range 0.12 Ω to 99.9 kΩ, Current > 200 mA DC.
Memory: 512 locations, Communication: Optical/USB link.
Dimensions/Weight: 272 x 250 x 128 mm / 3 kg, Electrical Safety: 50 V CAT IV.

Accessories and Spares: Various kits and accessories are available, including earth kits for different methods, clamps, cables, and software for data management.

Contact Information: Chauvin Arnoux provides contact details for France, International, and the United Kingdom for further assistance and ordering.

Catalog excerpts

C.A 6470N TERCA3 C.A 6471 Earth and resistivity testers: comprehensive, accurate and suitable for all-terrain use Earth and resistivity testers C.A 6470N INDUSTRY & HOUSING 4 in 1: Earth • Resistivity • Coupling • Continuity 5 in 1: Earth • Selective earth • Resistivity • Coupling • Continuity Measurement of earth networks in parallel without disconnecting the earth and without rods.. • Possibility of selecting the measurement frequency • Automatic calculation of resistivi

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– Multi-function testers • 3-pole and 4-pole measurements • Selective 4-pole measurements, 2 clamps (C.A 6471 only) Giant backlit LCD screen • Resistivity (Wenner + Schlumberger methods) • Earth coupling • Continuity & resistance – Measurements possible even with highly resistive soils Colour-coded connection terminals to prevent errors – Improved measurement quality due to high rejection of disturbance voltages Connection diagrams for the different measurements Direct access to the measurements by means of a switch – Excellent accuracy and resolution – Standard software for data recovery and...

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The 4P measurement method is more accurate and can be used to measure low earth resistances. The results obtained with this measurement method are ideal for the requirements of energy distributors such as EDF. EARTH LOOP MEASUREMENT WITH 2 CLAMPS In the event of a system with parallel earth connections, 2 clamp-on ammeters can be used with the C.A 6470N & C.A 6471 to provide accurate earth resistance measurements. The principle of this method involves placing 2 clamps around the earth conductor tested and connecting each of them to the instrument. One clamp injects a known signal (32 V / 1,367...

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Measurement frequency Coupling measurement Measurement frequency Earth measurement with 2 clamps Wenner and Schlumberger with automatic calculation Test method Measurement frequency DC resistance measurement Measurement current Dimensions / weight Electrical safety Delivered with 1 external mains charger, data export software + optical / USB communication lead, 5 operating manuals (one per language) on CD-ROM, 5 simplified operating manuals, each in a different language, 5 descriptive labels, each in a different language. Delivered with 1 external mains charger, data export software + optical...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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