Multiple resistance value measurement

Paul Boughton

The Cropico D05000 series of microhmmeters now available from Seaward provides accurate measurement of resistance values for a variety of electrical manufacturing applications.

The D05000 has programmable current settings in 100 steps from 10µA to 10A and measures 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 D05000 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 can be 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.

For more information, visit www.cropico.co.uk