We will examine different successful strategies to monitor machinery that is continuously changing speed.  Continuously Variable Speed Machinery is different than the typical variable speed machine.  Most Variable Speed Machines run in a steady state and only occasionally change speeds.  Machines that continuously change their speed such as Take-Up Reals, Process Feed Pumps, Silicon Wafer Saws, and Electric Mining Shovels present unique challenges to vibration measurement.  In these cases, the vibration and waveform are in a continuous state of change due to process or operational demands.  When a measurement starts and the RPM is changing, skewing or smearing of the spectrum results in a spectrum that is difficult if not impossible to pull specific frequency information from.  In addition, load and other contributing process conditions increase the difficulty of obtaining a trend-able result.  Come explore the various approaches of Order Tracking Spectrums and Trending with Operating States to successfully monitor this classification of machines.  Identify problems before they go critical!