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Digital Leak Noise Correlation From HWM

Posted: Wednesday 19th August 2009

The MicroCall+ leak noise correlator from Halma Water Management is the newest addition to its proven MicroCorr Correlator line, now with advanced features to maximize performance and ease of use.

The MicroCall+ is a fully digital leak noise correlator that incorporates a highly visible 6.5 colour VGA display with enhanced features provided by the advanced technology, including automatic three-station functionality for improved pinpointing results and reduced incidence of dry holes.

The use of a third outstation produces multiple correlation results for cross checking and allows a greater area to be covered in a single correlation. It also enables automatic velocity measurement which calculates the speed of the sound for the specific pipe. Multiple filtering levels are available to allow automatic correlation across the frequency range and provide highly accurate readings. The correlator features a low frequency response to enable it to work effectively on plastic and large diameter pipelines. Its 16 bit signal description allows the user to pick out weak leak noise from high background noise levels.

The correlator is fully digital, actually digitizing leak noise at the source in the sensor itself, which protects the sound from any signal degradation. The radio transmission is also digital in order to ensure that the quality of signal is maintained throughout the final processing. Digital radio technology enables two-way communication with the base unit, displaying and controlling the outstation status at the base to minimize visits to the outstations.

Tel: +44 (0)1633 489 479
Fax: +44 (0)1633 877 857

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