Phocus2 - Primayer

Phocus ® 2Intelligent acoustic leak detection systemPhocus2 is an acoustic data logger systemdesigned for widespread use in detecting andlocalising leakage on water distribution systems.Large areas may be rapidly assessed.Phocus2 gives visual, on-site indication ofleakage or can be used with sophisticatedsoftware to produce graphical and tabular results.Phocus2 advantages:• Rapid, overnight, identification of leaks -without the need for staff night working• Use for survey or permanent operation• Large areas can be covered quickly• Intelligence built into logger for instant,on-site, indication of leakage• Advanced analysis PC softwareOperationLeak pre-location is carried out by installation of anumber of Phocus2 loggers at available fittings suchas hydrants or valves. The loggers record leak noiseduring the night, when background noise is likely to belower. Noise amplitude will vary due to random effects,but there will always be a consistent minimum (thecritical noise level) due to any constant noise - forexample, leakage.Loggers which are situated closer to a leak will recorda higher critical noise level. The leak can then bepinpointed (usually by using the leak noise correlationtechnique).The SystemThe Phocus2 system consists of a number ofacoustic noise loggers. A communications case isrequired to program and readback loggers. The casehas the contact-less communications facility built intothe lid. Loggers may be placed in any position and thePC software automatically identifies each logger. Thecase provides for communication for up to 15 loggersat the same time and the cases may be connected tobuild a system with any number of loggers.A Q U A T E C H N O L O G Y S O L U T I O N SPhocus2 achieves full statisticalanalysis overnight - move it everydayfor maximum network coveragePrimayer

Visual indication provides instant on-siteawareness of the leakage situation.Amber LEDNoise StrengthNumber ofCritical Noise LevelFlashesContact-lessCommunications PortGreen LEDLeakage Confidence FactorNumber ofMeaningFlashes43210>50dB41 - 50dB31 - 40dB20 - 30dB