Specifications

Reference Manual
MHM-97408, Rev. 2
June 2008
CSI 9420
C-4
Again, keep in mind that these are generic limits.They are provided as a
starting point and these values (for a 3600 RPM machine) are used as the
default alert thresholds by the vibration transmitter.
Utilizing the embedded PeakVue technology, the CSI 9420 identified
developing problems at a couple of test sites during early field trials. In both
cases, the problem was not visible with conventional low-frequency analysis.
Example data from one of the sites is provided below. Notice in this example
that the velocity measurement is indicating less than 0.1 inches/second. The
PeakVue trend, however, indicates high-frequency vibration that is regularly in
excess of 6 g’s.
The user at this location removed the defective bearing, and the photographs
below clearly show the developing problem that was the source of the
impacting. After replacing the bearing, the PeakVue vibration is significantly
reduced, indicating that the problem has been resolved. This is clearly shown
in the data following the photographs.