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There are 2 main measurement methods . 1.Rough measurement：spectrum analysis Double-click “spectrum analysis” to enter the spectrum analysis measurement mode, until hear the clear sound effect.Put the probe on the pavement below the pipelines which needs to be detected,and long press the handle switch of connecting wire, finish the measurement of one point, and then loose the handle switch.Press the switch to inspect every one meter along the pipelines.When it is next to the lead source, there will be a sound in the earphones. If the volume increases, the whole spectrum on the instrument’s screen will increase.If it is more close to the leak source, the reaction is more obvious.So this place can be temporarily thought as a leak source. 2.Accurate measurement ：filtering analysis
4 Operation Mode To Lock Leakage Quickly
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