Xmic

Leak Detection System

Xmic is an advanced, yet easy to use electronic ground microphone. It is designed to amplify the noise generated by water escaping from buried supply pipes under pressure. The latest acoustic and amplification technology provides excellent sound quality, whilst a range of features help effective and accurate pinpointing on site. The system comprises a lightweight portable amplifier module with battery charger, a pair of high quality headphones and an acoustically shielded ground microphone foot.

Multi-function display

Xmic features a large backlit multi-function display:

• ‘Analogue’ style moving meter giving quick representation of noise level trends
• Digital noise level for precise indication
• Filters selected (see below)
• Battery level

MLP - Minimum Level Profiling

Having identified an area of potential leakage, Xmic assists the operator to pinpoint the leak position. MLP checks the readings over the previous 3 seconds and memorises the lowest noise level. This is the constant background (leak) noise. As the sensor is moved, a series of readings are taken. These are displayed digitally and graphically to clearly pinpoint the Leak Position.

Auto and Manual Filtering

At switch on, to begin surveying, the operator can select metal or plastic filters; Xmic automatically sets filters for the pipe material. To further suppress background noise and target the leak, manual filtering allows the filter pass band to be positioned anywhere within the filter range. The selected pass band is displayed graphically.