CSI 2130 Reference Manual - Emerson Process Management

Order based colored Waterfall plot. A reference
and a primary cursor are installed.
Trend plot of all the energy between the reference
and the primary cursor in the waterfall plot.
Because the waterfall plot was order based, and the
reference cursor was just below 1 x RPM and the
primary cursor was just above 1 x RPM, this trend
plot indicates the imbalance value during the transient
job.
During the start up, the critical speed is 1155 RPM.
During the run out, the critical speed (imbalance
value) is 1180 RPM
9-36 Advanced Transient