Chauvin Arnoux CA6240 Micro Ohmmeter - C.A. 6240

  • Resistance measurement from 5mΩ to 400Ω with a resolution of 1µΩ
  • Seven different ranges with currents of 10A, 1A, 100mA and 10mA
  • Automatic testing as soon as continuity is achieved
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Chauvin Arnoux CA6240 10A Micro Ohmmeter

The Chauvin Arnoux CA6240 Micro Ohmmeter is powerful instrument that boasts resistance measurement between 0Ω and 400Ω with a maximum resolution of 1µΩ and basic accuracy of ±0.25%. This is achieved using the four-wire measurement technique with current reversal and test currents of 10mA to 10A. Such functionality makes this ohmmeter suitable for a range of uses including checking contact resistance in switches, measuring earth continuity, assessing the quality of weld spots, surface condition and metallisation testing, and graphite electrode testing.

The Chauvin Arnoux CA6240 has two measurement modes for allowing quick and comprehensive testing. Automatic mode performs a test as soon as continuity is achieved between the measurement points so it is possible to perform consecutive tests with no intervention from the user. Measurements are also automatically recorded to the ohmmeter’s internal memory.

A large backlit LCD display shows readings clearly and concisely and a rechargeable NimH battery makes the Chauvin Arnoux CA6240 fully portable. The protective casing is leakproof up to IP53 standard and a 12-month manufacturer’s warranty is provided as standard.

Chauvin Arnoux part number: P01143200

Key Features

  • Earth continuity tests
  • Surface and metallisation conditions
  • Quality of electrical contacts (switches, relays)
  • Resistance measurements of cables and electrical windings
  • Heating of electrical motors and electrical transformers
  • Excellent accuracy
  • 4 wire measurement method 
  • Current reversal
  • Test currents: 10A, 1A, 100mA, 10mA
  • Measurement range: 5mΩ to 400Ω
  • Resolution: 1µΩ to 100mΩ
  • 12-month warranty

What's In The Box?

  • Set of 2 x 10 A Kelvin clamps with a 3m cable (P01101794)
  • CA6240 Black Carry Bag
  • UK Mains power lead 2m long
  • Optical / USB communication cable
  • Chauvin Arnoux "Microhmview" software
  • Operating manual 
  • Test Report
  • Measuring range: 5 to 3,999 mΩ / 4 to 39.99 mΩ / 40 to 399.9 mΩ / 400 to 3,999 mΩ / 4 to 39.99 Ω / 40 to 399.9 Ω
  • Resolution: 1μΩ / 10 μΩ / 100 μΩ / 1 mΩ / 10 mΩ / 100 mΩ
  • Current: 10 A / 1 A / 1 A / 100 mA / 100mA / 10 mA
  • Accuracy: ± 0.25% ± 2 counts
  • No-load voltage: 4 to 6V
  • Power supply: rechargeable NiMH battery
  • IP rating: IP53 ingress protection
  • Electrical safety IEC 61010-1 CAT III 50 V
  • Warranty: 1 Year
  • Dimensions: 273 x 247 x 280mm
  • Weight: 4.5kg
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