Emerson Daniel 3410 Series Operation Manual page 122

Commands
January 2019
7.1.2 Waveform viewer
View the transducer waveforms
Daniel 3410 Series Ultrasonic Flow Meters includes a feature for streaming transducer
waveforms that can be viewed using the Daniel MeterLink Tools > Waveform Viewer
screen. The speed at which the waveforms update is dependent upon the type of
connection between the PC and the meter. With an Ethernet connection and Daniel
MeterLink, several updates per second are possible. With a serial connection, updates may
occur only every 15 to 30 seconds.
Up to three types of waveform signals can be displayed per chord:
• Raw - the sampled waveform received by the transducer (with gain applied)
• Stacked - the result of applying stacking to the raw signal(s). Note that when stacking is
not used (StackSize is set to 1), the stacked signal is the same as the raw signal.
Filtered - the result of applying the bandpass filter on the stacked signal. This waveform
•
is only available when the filter is enabled (via the Filter data point).
For diagnostic purposes, the transducer waveform signals can be stored to a file using the
Diagnostic Collection - Stream to file checkbox. This utilizes the Daniel 3410 Series Gas
Ultrasonic Flow Meter's patented "snapshot-and-playback" feature to accurately record the
flow signals that can then be later reproduced for detailed analysis.
Waveforms are displayed in the time domain (e.g., the waveform signal is plotted against
time).
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Operations manual
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Operations manual