Maintenance, Test & Measurement, Calibration


See sound and locate invisible threats

February 2021 Maintenance, Test & Measurement, Calibration

While most manufacturers know that these types of leaks exist, up until now, it has been too time consuming and tedious to address. Comtest, local representative of Fluke, reports that with the new Fluke ii900 or ii910 and minimal training, maintenance technicians can begin checking for leaks during their typical maintenance routine – even during peak operation hours.

The ii900 series acoustic imagers let technicians ‘see’ sound as they scan hoses, fittings, and connections for leaks. Its built-in acoustic array of tiny, sensitive microphones generates a spectrum of decibel levels per frequency. Based on this output, an algorithm calculates a sound image, known as SoundMap, that is superimposed on a visual image. The SoundMap is automatically adapted depending on the frequency level selected so that background noise is filtered out, making it incredibly simple to detect compressed gas leaks.

The invisible threat can now be seen

Partial discharge is a serious issue that users would like to be able to monitor quickly and easily. Whether inspecting insulators, transformers, switch gears or high-voltage power lines, users need to be sure that a problem can be spotted quickly. Partial discharge that goes unchecked can cause blackouts, fires, explosions, or death from arc flashes. In addition to the danger that partial discharge poses to human lives and the environment, there is a significant monetary risk of downtime. Having equipment go down can cost millions of rand per hour of downtime.

The Fluke ii910 precision acoustic imager is specifically designed for high-voltage electricians, electrical test engineers, and grid maintenance teams that are constantly inspecting and maintaining power distribution and industrial high-voltage equipment. The ii910 provides a safe, quick and easy way to detect and locate partial discharge in order to maintain high-voltage equipment and prevent catastrophic events. With the SoundSight technology, the ii910 translates the sounds that it hears into a visual representation so that problem areas can quickly be located. The higher frequency capability of the ii910 allows for earlier detection to facilitate early maintenance planning and is why the ii910 has a frequency range of 2-100 kHz.


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