The Multi Channel software allows you to create and arrange graphs the way you want. New graphs can be created on the main screen of the measurement software and can be moved to a separate window outside the main screen. When a new graph is created, the user can fully control the position of the graph, as well as the size. By arranging the graphs to the user's liking, the user can focus more on the measurements at hand, rather than having to locate the graph with the desired information all the time.
Read here to learn how to display data in a graph.
To change the offset setting of an axis, simply grab the axis and drag it to the required position, see animation 1 for an example.
To change the gain setting, grab one of the end bars of an axis and drag it to the preferred position, see animation 2 for an example.
It is also possible to adjust the offset and gain with the mouse wheel: when the mouse pointer is above the axis and the wheel is turned, the offset is adjusted. When the CTRL-key is pressed during the turning of the wheel, the gain is adjusted instead.
Double-clicking the axis will return it to its default unzoomed state.
Animation 1: Move axis
Animation 2: Resize axis
The width of the scroll bar represents the total record, the width of the slider represents the visible part of the record. To change the record view offset, grab the slider and drag it to the preferred position (animation 3) or press the buttons at the sides of the scroll bar. To change the record view gain, drag one of the edges of the slider either to the left or the right and watch the signal change corresponding to the slider width (animation 4).
It is also possible to adjust the offset and gain with the mouse wheel: when the mouse pointer is above the scroll bar and the wheel is turned, the offset is adjusted. When the CTRL-key is pressed during the turning of the wheel, the gain is adjusted instead.
Double-clicking the slider or pressing the hotkey T will return the time base to its default unzoomed state.
Animation 3: Adjust horizontal offset
Animation 4: Adjust shown record
When the graph contains a Data collector, it is possible, while the Data collector is being filled, to zoom in on the latest data and have the graph automatically keep the latest data visible. Choose the appropriate zoom factor in the graph and right-click the timebase axis and select Follow source from the popup menu. This will show a sub menu with the possible sources to follow and an option not to follow a source.
Enable/disable interpolation (hotkey: L)
Yt or XY mode
Enable/disable cursors
Enable/disable a time=0 line in Yt mode
Show legend
Delete all axes (hotkey: Ctrl + Del)
Move graph to new window
Add a comment to the graph
Remove all comments from the graph
Show/hide reference signals
Update reference signal with live data
Graph number
Close this graphIf you want to view a small section of your measurement simply drag a rectangle at the section you want to see in detail, see animation 5. Multiple zoom operations are remembered and it is possible to unzoom with hotkey U.
Animation 5: Zooming
To zoom in horizontal direction only and leave the vertical zoom factor unchanged, press the Ctrl key and select a zooming area with the mouse. To zoom in vertical direction only and leave the horizontal zoom factor unchanged, press the Shift key and select a zooming area with the mouse.
Creating multiple graph's can easily be done by right-clicking on the graph area, and select make new graph. Then drag a rectangle at the position you like to have a new graph. The rectangle may be dragged over multiple existing graphs.
In each graph, cursors can be used to measure values of interest between the cursors. Measurements include: Mininum, Maximum, Top-Bottom, RMS, Mean, Variance, Standard deviation, Frequency.
The cursors can be enabled by:
)on the toolbar For clarity, not all measurements are enabled by default when the cursors are enabled. In the program settings can be determined which measurements are default shown when the cursors are enabled. The cursor window will by default look like in the figure below.
Except for the "Left" and "Right" values, all measurements are calculated over the data in between the two cursors. Besides the calculated values in between the cursors, the positions of the cursors, as well as the difference between them, can be seen at the bottom of the cursor window.
The measured values can be copied to the clipboard as text, by pressing the
button.
Enabling or disabling measurements can be done by clicking "Select measurements..." in the
popup menu of the cursor window, or by clicking the
button on the toolbar.
A window as depicted below will popup, in which the desired measurements can be selected.
Note: For the frequency measurement, at least one cycle must be in between the cursors. Furthermore, at least two rising slopes must be present in the signal.
Sometimes it is clarifying to add a text comment to a graph, to explain certain phenomena in the measured signals. An unlimited amount of comments can be added to each graph and an unlimited amount of arrows can be drawn from each comment to point at the signals.
A comment can be added by:
) on the toolbar The comments can be dragged to the desired position. Arrows can be created by "dragging" from the little square at the middle of the bottom of the comment to the desired position. You can move an existing arrow by dragging its point to a new position. To delete an arrow, right-click on its point and click 'delete'.
A graph with data, comments and cursors can be exported in graphical way to an image file. This is explained on the page on saving images.