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A manufacturer of North American and European-style fuses is using the Cropico D05000 microhmmeter to test the functionality of its products during the manufacturing process.

Cooper Bussmann, a wholly owned division of US-based Cooper Industries, manufactures fuses at several sites around the world for the electrical, electronics and transportation industries.

The company has specified the D05000 for various manufacturing sites including operations in Eastern Europe and Asia, where it is being used to test the electrical resistance values of the fuses during production.

This enables Cooper Bussman to check the fuses are working properly, functioning within pre-defined +/- parameters.

Ten units have already been supplied, with further orders expected in 2009.

The D05000 was chosen to replace the previous testers because, according to industrial engineering manager Dave Laxton, it is a superior product offering greater functionality.

He said: ‘Not only is the D05000 the most cost-effective solution for us but also the best, with functionality greater in terms of output.’ Designed to handle all testing applications with a single highly flexible meter, it measures from 0.1 microohms to 30,000 ohms in eight ranges, with manual or automatic selection and +/-0.03 per cent accuracy.

Automatic temperature compensation with 20C referencing or other user-defined settings increases measurement accuracy.

Higher accuracies over a wider measuring range on the D05000 microhmmeter are combined with greater functionality than other instrument models and programmable current setting in 1 per cent steps from 10 per cent to 100 per cent with 10A maximum.

Measurement speed settings of 50, 25 or 2.5 per second allow selection of high-speed with full accuracy for production line testing, usually with an interface, medium mode also for fast production testing, but where the DUT needs a little more time to settle, or slow speed for manual operation where display clarity is a priority.

Component sorting is simplified by programmable Hi/Lo limits, and built-in algorithms ensure stable readings for measuring inductive circuits such as windings.

The standard unit also has RS232 and data logging function, storing up to 4,000 readings with date and time stamp and statistical analysis.

Interfaces can be added for remote control and integration into automated test systems.

Cropico manufactures a range of specialist instrumentation designed for a wide variety of precision measurement applications.

Resistance measurement – Cropico’s comprehensive range of digital milliohmmeters is designed for the highly accurate precision measurement of low resistance values in a wide variety of electrical, electronic, industrial and engineering applications. The ohmmeter range includes microhmmeters, milliohmmeters, digital and portable ohmmeters.

Temperature measurement – Cropico also supplies a range of highly accurate digital thermometers and thermocouples with PT25 / PT 100 sensor for use in calibration laboratories as well as in applications associated with the aerospace and pharmaceutical, petrochemical and other process industry sectors.

Decade Boxes and Resistance standards – for precision measurement applications and the calibration of laboratory or workplace equipment.

Cable clamps and testers – Cropico also supplies a range of cable and harness testers.

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