Pulsar Process Measurement Ltd manufactures and supplies level, volume, open channel flow, pipe flow, sludge interface measurement and pump control instrumentation.
Anatomy of an Echo Trace
- Echo Trace– Signal returned to the transducer mapping the application.
- Echo Marker– Echo that the software is analyzing as the level to be measured.
- Gate– Set distance either side of the echo marker which is the ‘normal’ area that an echo will change within.
- Near Blanking– Distance from the transducer face in which no echo signal can be recorded.
- Far Blanking– Distance further than the measurement range of the transducer.
- Loss Limit– Threshold that indicates the echoes to be ignored because they are below this line.
- Datum line– Indicates the noise threshold calculated e.g. the base echo line.
- Empty level – The maximum distance that can be measured if the application (e.g. tank, wet well) was empty