The Peak valley DataMode™ stores multiple channels of peak and valley sequences in the output data file. The system acquires peaks and valleys from triggered or un-triggered time history data streams using the user-defined hysteresis value and the peak valley processing algorithm.
NOTE
When a large number of channels are selected for a DataMode, the GUI responsiveness can become sluggish. Typically with 500 channels or less, this is not overly intrusive to usability. However, if more than 500 channels are required for any given DataMode, it is recommended that users consider splitting the channels across multiple DataModes when possible; otherwise, users will need to be patient in regard to the GUI response when assigning or editing any of the DataMode parameters.
DataMode options
Navigate in a dialog using a mouse pointer, keyboard Tab, up-arrow or down-arrow key (not a 10-key pad up- and down-arrow key). Mouse point or Tab between insertion points or options. Use the mouse or up-arrow or down-arrow keys to scroll among options. Click the mouse, Tab or Enter to select an option.
After initializing, the peak valley processing algorithm alternates searching for peaks and valleys based on the user-defined hysteresis. There are three states of the algorithm - initialize, peak search and valley search.