SKF Microlog GX Series - Page 193

Run Up / Coast Down Module
Displaying Acquired Data
Spacing – (
∆
RPM, %
∆
RPM,
∆
Time,
∆
RPM +
∆
Time, %
∆
RPM +
∆
Time) -
Determines
the type of interval used when FFT spectra are calculated from the
recording. Affects subsequent Speed Interval and Time Interval settings, which
update to allow corresponding settings.
∆
RPM – fixed speed change between spectra
%
∆
RPM – percentage speed change between spectra
∆
Time – fixed time interval between spectra
∆
RPM +
∆
Time - Combination of speed and time settings. If speed stops
changing, then spectra are calculated at the defined time interval.
%
∆
RPM +
∆
Time - Combination of speed and time settings. If speed stops
changing, then spectra are calculated at the defined time interval.
Speed Interval (RPM, %, or NA, as specified by the Spacing setting) – If applicable,
specifies the speed interval (in RPM or % of RPM) used when FFT spectra are calculated
from the recording.
Time Interval (sec or NA, as specified by the Spacing setting) – If applicable, specifies
the time interval (in seconds) used when FFT spectra are calculated from the recording.
Display Units (Accel (g), Accel (m/s
2
), Vel (mm/s), Vel (ips), Disp (mils), Disp (
µ
m)) –
If necessary, allows integration of the recorded signal to specified measurement units
for display purposes.
LF Cutoff (Off or On) – If On, applies a filter of 0.3 of an order to remove low frequency
data from the overall vibration severity calculation.
Detection – (RMS, Peak, PkPk) – Specifies detection type for display purposes.
Y-Axis – (Linear or Log) – Specify y-axis scaling as Linear or Logarithmic.
Show Overall (Yes or No) – Specifies whether to display the overall vibration severity as
a trace on the Bode plot.
Num Traces – Sets the number of traces (order tracks) to be displayed on the Bode
plot. If the previous Overall trace is displayed, the display is limited to three orders, if
not, four orders may be displayed.
Trace Order #1 - #4 – Works in conjunction with the Num Traces setting.
Determines the order number(s) that will be tracked and displayed. Can be a non-
integer order, but the maximum order specified cannot exceed the Max No. Orders set
during the data acquisition stage.
SKF Microlog - GX Series 7 - 9
User Manual