Chauvin Arnoux CA6250 Micro Ohmmeter

  • Measures resistance between 1µΩ and 2500Ω with 0.1µΩ precision
  • Ten measurement ranges using test currents of up to 10A
  • Temperature compensation, adjustable alarms and a large internal memory
More Info

Chauvin Arnoux CA6250 10A Micro Ohmmeter

This product has now been discontinued and replaced by the Chauvin Arnoux CA6255 Micro Ohmmeter.

The Chauvin Arnoux CA6250 10A Micro Ohmmeter features a wide resistance measurement range of 1µΩ to 2500Ω using the four-wire measurement method. There are seven test ranges including three with a maximum 10A current and the resolution is just 0.1µΩ so the ohmmeter is incredibly precise. Accuracy stands at a basic 0.05% and is further aided by automatic compensation for rogue voltages at the inputs.

Three measurement modes allow the Chauvin Arnouc CA6250 to be used across a range of applications. Inductive mode is suited for taking resistance readings on inductive components whilst non-inductive mode is designed for use on resistances with small time constants (contacts, metallisation etc.). Auto non-inductive mode is suitable for resistances with no time constant.

Advanced functions on the Chauvin Arnoux CA6250 include temperature compensation which automatically compensates for ambient temperature in order to produce a consistent reading. Programmable alarms indicate when resistance is too high or too low, thus speeding up the test process, and the internal memory has enough space for up to 1500 measurements.

Results are shown on the Chauvin Arnoux CA6250’s backlit LCD screen and it is also possible to print readings on a standard printer directly from the instrument’s memory. The rechargeable battery will allow roughly 5000 measurements and the casing is very sturdy with an IP64 rating (when closed). Chauvin Arnoux provide a 12-month manufacturer’s warranty as standard.

Chauvin Arnoux part number: P01143201

Key Features

  • Earth continuity tests
  • Surface and metallization conditions
  • Quality of electrical contacts (switches, relays)
  • Resistance measurements of cables and electrical windings
  • Heating of electrical motors and electrical transformers
  • 4-wire resistance measurement method, 1µΩ to 2,500Ω (7 test ranges, 3 with a 10A current)
  • Automatic compensation of spurious voltages at input terminals
  • 3 measurement modes available depending on the application: inductive, non-inductive and automatic
  • Temperature compensation function for comparative results
  • Programmable alarms
  • 1,500-measurement memory capacity
  • Direct printing of measurements on standard printer
  • Large backlit LCD display offering a wide range of symbols and indicators
  • Power supplied by rechargeable NiMH battery; battery life of 5,000 measurements at 10A
  • IP 64: (casing closed) / IP 53 (casing open)

What's In The Box?

  • 2m mains power lead 
  • Set of two 2m 10A Kelvin clamp cables
  • Carry Bag
  • Data Transmit Software & RS232 Cable
  • Instruction Manual
  • Range: 5.0000 mΩ / 25.000 mΩ / 250.00 mΩ / 2500.0 mΩ / 25.000 Ω / 250.00 Ω / 2 500.0 Ω
  • Resolution: 0.1μΩ / 1 mΩ / 10 mΩ / 0.1 mΩ / 1 mΩ / 10mΩ / 100mΩ
  • Accuracy: 0.05 % + 1.0 μΩ / 0.05 % + 3 μΩ / 0.05 % + 30 μΩ / 0.05 % + 0.3 mΩ / 0.05 % + 3 mΩ / 0.05 % + 30 mΩ / 0.05 % + 300 mΩ
  • Dimensions: 270 x 250 x 180mm
  • Weight: 4kg
  • Warranty: 12 months
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pdf Chauvin Arnoux CA6250 Datasheet pdf 1.2 MB Download