www.megger.comMPAC – Professional Accoustic Imaging Camera8FAQs Technology/capabilitiesHow does acoustic imaging work technically?An array of 128 microphones picks up audible and ultrasonic sounds from a PD event or a gas leak. By looking at the phase difference between the sound waves at each of the microphones, the instrument can determine the direction to the source and also the approximate size of the source.What gases can your camera detect leaks of?Acoustic imagers work with any pressurised gas.What causes partial electrical discharge and why detect it? Partial discharge is caused by the partial failure of electrical insulation. The occurrence of partial discharge may indicate that the fault will progress to complete failure if no action is taken. Partial discharge, therefore, provides a valuable advance warning of potential insulation problems.How accurate is the leak detection and discharge imaging?At the maximum detection range of 120 m, the instruments will provide a reliable general indication of the location of the fault. The standard procedure would then be to approach the area more closely and, at shorter ranges, the location accuracy is even better. Can your camera see through obstructions or insulation?In general, acoustic imagers cannot see through solid objects which obstruct the passage of sound waves. They can, however, detect partial discharge on the surface of insulation.What software analytics options come with the camera?The instrument incorporates analytic functionality and can, for example, estimate the size of gas leaks to enable their cost to be calculated or produce phase resolved partial discharge information to help identify the type of PD event. In addition, reporting software is supplied that enables users to generate and export reports quickly and easily.What is the ATEX code of the MPAC128-ATEX?II 3 G Ex ic IIC T5 GcAre the Megger MPAC cameras designed for industrial use?Yes. Both the MPAC cameras offer an IP54 environmental protection against water and dust ingress.
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