4.3 Capturing the ADC Signals
To capture the ADC signal, go to the "ADC Capture" tab and click the "Capture" button. If you are using and
AudioWell DN-25 meter, you should see a signal that looks like
at zero flow.
Figure 4-6. Captured ADC Signal
If the capture looks different, check these items first.
• Reduce the gain in your configuration parameters to –6.5 dB. Because the captured signal is windowed, the
tail of the signal may be slightly truncated without changing the results.
• Adjust the Gap between pulse start and ADC capture.
shows an example where the gap is set too
long.
shows an example where the gap is set too short.
USS GUI
SLAU810B – SEPTEMBER 2019 – REVISED SEPTEMBER 2020
Water Flow Meter
11
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