Product presentation

An easy-to-use, high-performance instrument, the C.A 6255 micro-ohmmeter tests the quality of connections with precision (resolution of 0.1 µΩ) through the use of low resistance measurements.


  • 4-wire measurement method, 1 µΩ to 2,500 Ω (7 ranges, 3 with a 10 A current)
    automatic compensation of stray voltages at input terminals
    3 measurement modes available depending on the application: inductive, non-inductive and non-inductive with automatic trigger
    temperature compensation function for comparative results
    programmable alarms / 1,500-measurement storage capacity
    large backlit LCD display offering a wide range of symbols and indicators
    50 V CAT III
    Power supply: NiMH rechargeable battery
    Dimensions: 270 x 250 x 180 mm; weight: 4 kg

LARGE NUMBER OF MEASUREMENTS
Chassis-earth continuity tests
Surface and metallization conditions
Quality of contacts (switches, relays)
Resistance of cables and windings
Heating of motors and transformers

VERIFICATION OF MECHANICAL CONNECTIONS

To make them easier to use and to permit new applications, new retractable 10 A KELVIN test probes are now available as accessories.

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Features

Measurement method

4-wire method

Range

5.0000 mΩ
25.000 mΩ
250.00 mΩ
2500.0 mΩ
25.000 Ω
250.00 Ω
2500.0 Ω

Precision

0.05 % +1 μ;Ω
0.05 % +3 μ;Ω
0.05 % +30 μ;Ω
0.05 % +0.3 mΩ
0.05 % +3 mΩ
0.05 % +30 mΩ
0.05 % +300 mΩ

Resolution

0.1 μ;Ω
1 μ;Ω
10 μ;Ω
0.1 mΩ
1 mΩ
10 mΩ
100 mΩ

Measurement current

10 A
10 A
10 A
1 A
100 mA
10 mA
1 mA

Measurement modes

Self, non-self, self with automatic triggering

Temperature compensation

By temperature probe or manual

Memory

1500 measurements

Communication output

RS232 connection

Power supply

Rechargeable NiMH battery

Dimensions / Weight

270 x 250 x 180 mm / 4 kg

Electrical safety

IEC 61010 - CAT III 50 V

Documentation and support

Do you have a question about using or installing your measurement equipment? Our support team is available to provide you with quick and effective solutions. Contact support for personalized assistance.


Contact support

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Do you have a question about using or installing your measurement equipment? Our support team is available to provide you with quick and effective solutions. Contact support for personalized assistance.


Contact support

The MOT Micro-Ohmmeter Transfer software allows you to control the CA 6240, CA 6250, CA 6255 and CA 6292 micro-ohmmeters.

Key features

The Micro-Ohmmeter Transfer software is a tool that enables you to:

  • Configure the instruments,
  • Download and view data stored in memory,
  • Export this measurement data to DataView or to a spreadsheet.

Please note: DataView is not supplied with the MOT software

Do you have a question about using or installing your measurement equipment? Our support team is available to provide you with quick and effective solutions. Contact support for personalized assistance.


Contact support

References and accessories

To fully meet your expectations, a range of accessories is available that is compatible with your equipment. Feel free to add them to your quote request to obtain a complete and tailored solution.

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CA 6255 Micro-ohmmeter 10 amps 0.1 micro-ohm

P01143221

Micro-ohmmeter, max. measuring current 10 A. Resolution 0.1 micro ohm. IP53 field enclosure. RS232

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Set of 2 mini Kelvin clamps with 3m cables

P01101783

Set of 2 mini-Kelvin 1A clamps for use with micro-ohmmeters, 3m cable

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Set of 2 Kelvin clamps 10 A for micro-ohmmeter

P01101794

Set of 2 Kelvin 10A clamps for use with CA 6240, CA 6250, CA 6255 micro-ohmmeters. ø 42 mm opening.

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PT100 probe for CA 6250 and CA 6255 microohmmeter

P01102013

Pt100 probe for CA 6250 and CA 6255 micro-ohmmeters. Used to correct the measurement to ambient temperature.

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2m PT100 extension lead for CA 6250 and CA 6255

P01102014

LG 2M extension cable for Pt100 probe used with CA 6250 and CA 6255 for ambient temperature correction.

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Set of 2 Kelvin 1A-CA 6240, CA 6250, CA 6255 leads

P01102056

Set of 2 double Kelvin touch probes, retractable, 1A for CA 6240, CA 6250 and CA 6255.

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Set of 2 Kelvin 10A swivel touch points

P01103063

Set of 2 swivel Kelvin 10A probe tips for CA 6240, CA 6250 and CA 6255 micro-ohmmeters

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Set of 5 fork to screw terminal adapters

P01102028

Set of 5 adapters for banana plug to screw terminals.

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Set of 5 PIN Covers for KELV. 10A Piv.

P01103067

Set of 5 protective caps for Kelvin 10A swivel tips P01103063

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Set of 5 PIN Covers for KELV. 10A Pist.

P01103068

Set of 5 protective caps for Kelvin 10A tips P01103065 and 25A tips P01102199, P0110200 and P01103081

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2-pole power cord - shaver socket

P01295174

2P mains power cord / shaver plug for power supply via a 2-pole socket

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Mains cable GB for CA 6470N, CA 6471, CA 6472

P01295253

Standard GB mains cable for powering battery chargers for CA 6470N, CA 6471 and CA 6472

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NiMH 6V/8.5A battery pack

P01296030

NiMH technology 6V/8.5Ah replacement battery for CA 6240, CA 6250 & CA 6255

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Spare fuse(s)

P01297089

Spare fuse size 6x32, breaking capacity 16A, 250V, fast (supplied in quantities of 10)

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Spare fuse(s)

P01297090

Spare fuse 5x20, breaking capacity 2A, 250V, (supplied in quantities of 10)

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Transport bag, waterproof bottom, shoulder strap

P01298066

Carrying bag, waterproof all-terrain bottom, 2 compartments and document storage. Supplied with shoulder strap. Dimensions 250 x 165 x 60 mm

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DataView Software

P01102095

PC software for configuring, saving and processing data, editing reports, etc. for Chauvin Arnoux measuring instruments

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