Chauvin Arnoux CA6240 Micro Ohmmeter

Chauvin Arnoux CA6240 Micro Ohmmeter

SKU: CA6240

Chauvin Arnoux CA6240 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
  • 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
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Customer Service:

0113 440 9315



Cedars Business Centre

Barnsley Road




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