Test & Measurement

Micro-ohmmeter has wide ranging test capabilities

23rd September 2015
Mick Elliott

The DO5000 series of micro-ohmmeters from Cropico are in stock at Seaward. The instruments offer increased flexibility for the highly accurate measurement of resistance values in a variety of electrical manufacturing, electronic component testing and equipment calibration applications.


The DO5000 has programmable current settings in 100 steps from 1010µA to 10A, with 8 measuring ranges from 3mΩ to 30kΩ with a resolution of 0.1µΩ and ±0.03% accuracy.

Variable measurement speed settings of 50, 25 or 2.5 per second allows the selection of high speed testing for production line applications, a medium mode where the device under test needs more time to settle or a slow speed for manual operation where display clarity is a priority.

True four-wire resistance measurement eliminates lead resistance errors, while auto averaging and automatic temperature compensation with 20°C referencing or other user-defined settings increases true measurement accuracy.

All these options are included in the basic DO5000 unit as well as a data logging function which stores up to 4000 readings with date and time stamp. Statistical analysis of these values allows the display of Max / Min /Average values as well as peak to peak and standard deviation.

Interfaces may added for remote control and integration into automated test systems. For applications where portability is required the Cropico 5001 model can be powered from either a mains supply or by rechargeable batteries. The charger is also incorporated into the unit and the full 10 Amps pulsed measuring current is available when used in battery mode.

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