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Chauvin Arnoux C.A 6240 Micro-Ohmmeter

Reliability and accuracy are both supplied by Chauvin Arnoux’s 6240 micro-ohmmeter. The versatile measurement device enables quick detection of deterioration between two contact points, allowing a wide range of applications, including earth continuity, contact resistance of circuit breakers, quality of weld spots, graphite electrode, etc.

The C.A 6240 micro-ohmmeter is equipped with automatic operating capabilities, improving efficiency whilst simultaneously reducing testing times. Automatic measurement is triggered as soon as continuity is detected between to contact points, with the ability to consecutively test without pressing a key whilst recording and saving all test results. There are 7 test calibres to utilize on the CA 6240 micro-ohmmeter, selected through the use of a rotary switch, each calibre corresponds to a current from 10 A (4,000 µΩ) to 0.01 A (400 Ω) selected automatically.

ESS Code: HDCT.1

  • 4-wire measurement method
  • Automatic power off
  • Power supply: NiMH rechargeable battery
  • Storage: 100 measurements
  • Communication via USB optical link
  • Data export software
  • IP53 protection
  • Electrical safety: IEC 61010-1 CAT III 50 V
  • Dimensions: 273 x 247 x 280 mm
  • Weight: 5 kg
  • Measurement ranges from 400 µΩ to 400 Ω
  • Test current range: 10 A to 10 mA
  • Accuracy: ± 0.25% ± 2 counts
  • Resolution range: 1 µΩ to 100 mΩ
  • No-load voltage: 4 to 6 V
Technical Document

Chauvin Arnoux C.A 6240 Datasheet

Chauvin Arnoux C.A 6240 Datasheet
  • 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

Lead time: 1 days

Delivery and Collection charges will be displayed in the basket at checkout stage and will vary depending upon your location and transport method applied.

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Chauvin Arnoux C.A 6240 Micro-Ohmmeter

hire Price

ESS Code: HDCT.1
£107.00 Weekly

Rates exclude VAT and Damage Waiver

£107.00 Ex. VAT


Minimum hire period: 5 days

Lead time: 1 day

Please note you will be charged for the minimum hire period if your order is for a period less than this. A web account linked to your ESS Credit account is required to hire online.

How to use Guide

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Key Product Features

  • 4-wire measurement method

  • Automatic power off

  • Power supply: NiMH rechargeable battery

  • Storage: 100 measurements

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