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Navigate the waveform viewer
Section 7: Tools commands
3410 Series Gas Ultrasonic Meters Operations Manual
June 2016
3-9000-777 Rev D
A default name based on the Meter Name, the type of waveform collected, and PC date
and time is suggested. Change the name or default location if desired. Click
Save
to
accept the file name and save the last set of waveforms collected.
4.
Click
Open
and select the Waveform filename from the Open dialog box to view a
previously saved waveform.
5.
Click
Tracking
to display the transducer’s raw, filtered or stacked signal Tracking
Parameters dialog for the selected chord. This dialog displays the parameter’s label,
value and units. Some of the Tracking parameters included are Gain, Hold time, Time
(stamp), Maximum Signal Quality, Peak width, Peak Position, and Peak Zero Crossing
for upstream and downstream signals. These parameters are used in the diagnostics of
field conditions.
6.
Click
Export
to save the waveforms displayed to Microsoft® Excel® format. The Excel®
file will contain three worksheets. The first worksheet called Charts contains charts for
each of the waveforms collected. The second worksheet called Raw Data contains the
waveform data to make the charts. The third worksheet called Tracking contains the
tracking parameters for the chord.
7.
Click
Close
to exit the Waveform Viewer.
8.
Use Diagnostic Collection set of controls feature to capture a waveform snapshot to be
played back on a simulator. This U.S. Patented feature is useful to allow Daniel to
reproduce any field specific conditions.
a.
Click the
Stream to file
checkbox and wait for the waveforms to start streaming to
the screen. The meter is returning raw waveforms just as they are received
without any stacking or filtering.
b.
Click
Record
to start saving all of the raw waveforms to file. The collection of
waveforms can be paused and resumed without having to start a new file.
Clicking
Stop
gives you the option to save the data collected to file. The file will
have a .strm extension. There is no utility in Daniel MeterLink to playback these
files. The files are only for use internally by Daniel on special diagnostic tools.
Clearing the
Stream to file
checkbox stops the streaming mode and returns the
Waveform Viewer back to its normal mode of operation.
Note
The file created with the Diagnostic collection grows quite rapidly. Typically when
connected via Ethernet to the meter, the file can easily take up 2.5 megabytes per
minute. If the file must be e-mailed, many mail servers only allow 10 to 20
megabyte files or approximately 4 to 8 minutes of data.
9.
Use the Chart utilities to control the waveform display. The controls for the waveform
chart utility include:
•
Scrollbar - enables horizontal and vertical scrollbars on the chart.
•
Markers - displays markers for the series in order to see the data points collected.
•
Zoom In - zooms in on both the horizontal and vertical scales centered on the
cursor.
•
Zoom Out - zooms out on both the horizontal and vertical scales centered on the
cursor.
•
Sticky- forces the cursor to stick to the waveform trace.
