Time history data
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The Time History view shows the noise profile data stored by the instrument.
The parameters shown on the screen can be selected from the options at the bottom of the chart.
Where available, the octave band time history data can also be viewed on the graph by selecting the Show Octave Bands and then selecting the required frequency band. To zoom in on a section of the graph, highlight the section required by dragging the mouse pointer, right click on the area and select zoom.
To zoom out, right click and select Zoom, All. Right click on the graph to export the screen as an image or export the information as a CSV file for use in other programs. To print the measurement, press the Menu button at the top of the measurement tabs and select Quick Report.
When the report is ready, click Preview to view, Save to save the report (HTML, XML or PDF) or print the report directly.
Markers can be created on the time history to mark certain events or highlight a period of data.
These can be created by either: Selecting an area, right clicking and choosing mark. Right clicking and chooseing Mark Point. Or Right clicking and choosing Mark Period, then entering the required dates and times.
Once the time of a marker has been selected a popup window appears to allow you to choose the colour of the marker and enter a suitable label. You can create many markers for similar noises by selecting the previous label and colour from the list provided.
The marker is then shown over the time history graph. Hovering your mouse over the marked area, or the marker pointer along the top, will show a popup of the levels during the marked time. This information is also available on the details tab.
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