C.A. 6470N TERCA 3 Earth and Resistivity Tester

The C.A. 6470N TERCA 3 Earth and Resistivity Tester is an ergonomic, comprehensive and accurate 4 in 1 earth, resistivity, coupling and continuity tester. The CA 6470N - TERCA 3 employs both 3-pole and 4-pole methods of  measuring the earth. The 4 pole measurements offer approximately 10 times greater accuracy and allows low earth resistance meaurements. These measurements in particular are essential to meet the requirements of power distribution and transmission companies as well as energy distributors such as EDF. The 6470 TERCA 3 provides an extensive measurement range of between 0.001Ω and 100kΩ and an adjustment frequency of between 41Hz and 512Hz. The C.A. 6470 earth & resistivity tester guarantees reliable measurements through the use of traditional stake-based methods. This ground earth tester will self diagnose before starting each measurement to detect any faults that may cause measurement errors. There are also high-level and expert calculation functions automatically provided by the C.A. 6470N Earth & Resistivity tester. For the earth coupling measurement, simply perform the 3 successive measurements required and leave the tester to calculate the coupling coefficient automatically and when measuring soil resistivity, programming of the distances used for the measurement makes it possible to calculate r automatically by the Wenner or Schlumberger methods.

The CA 6470N tester offers direct access to all the measurements via a rotary switch on the front panel and its compact, rugged and leakproof design is perfect for use in the field. To simplify the connections, the 4 terminals for connection to the stakes are colour-coded. The C.A 6470N includes a large backlit LCD screen and a rechargeable battery with an external charger for connection to the mains supply or to a vehicle cigarette lighter. It is equipped with a function for direct, ordered storage of the measurement results. A USB communication output allows the data to be exported onto a PC with the Ground Tester Transfer software for further processing.

C.A. 6470N TERCA 3 features
► 3-pole & 4-pole earth measurements
► Wenner or Schlumberger methods of resisitivity testing
► Earth coupling
► Continuity & resistance
► Maximum measurement range of between 0.001 and 99.99kΩ
► Storage of upto 512 test results
► Measuement possible even with highly resistive soils
► Improved measurement quality due to high rejection of disturbance voltages
► Excellent accuracy and resolution
► Standard software for data recovery and result processing

► C.A. 6470N TERCA 3 Earth and Resisitivity Tester
► External mains charger
► Dat export software
► USB lead
► Operating manual ( in 5 languages)
► Simplified operating manual ( in 5 languages)
► Identification labels ( in 5 languages)

3P method
► Range: 0.01 - 99.99kΩ
► Resolution: 0.01 - 100Ω
► Test Voltage: 16V or 32V, selectable
► Measurement Frequency: 41 - 512Hz, automatic or manual
► Test Current: Up to 250mA
► Accuracy: ±2% of value ±1 count
4P method
► Range: 0.001 - 99.99kΩ
► Resolution: 0.001 - 100Ω
► Test Voltage: 16V or 32V, selectable
► Measurement Frequency: 41 - 512Hz, automatic or manual
► Test Current: Up to 250mA
► Accuracy: ±2% of value ±1 count
Soil Resistivity
► Method: Wenner or Schlumberger with automatic calculation of results
► Range: 0.01 - 99.99kΩ
► Resolution: 0.01 - 100Ω
► Test Voltage: 16V or 32V
► Frequency: 73 -91.5 - 101 - 128Hz, selectable
DC Resistance
► Method: 2 wires or 4 wires
► Range: 0.12 - 99.99kΩ
► Test Current: > 200mA
External Voltage
► Range: 0.1 - 65V AC/DC
► Accuracy: ±2% of value ±2 counts
► Test Voltage: 16V DC (polarity +, - or auto)
► Test Current: 200mA max for R < 20
► Data storage: 512 test results
► Communication: Optically-isolated USB
► Power supply: NiMH 9.6V rechargeable battery
► Battery cahrger: 110/120V 50/60Hz external power supply with 18V DC/1.9A ouput or 12V DC vehicle supply
► Compliance: CAT IV 50V
► Dimensions: 272 x 250 x 128mm
► Weight: 3kg