7
Run Up / Coast Down Module
Overview
Warning - Due to required accessories, this module is not for use in Class I
Division 2 hazardous locations. Restrictions apply when used in ATEX zone 2
hazardous locations. Reference this manual's Appendix D, Safety Instructions for
details.
The GX Series’ run up / coast down (RUCD) module records and analyses run up / coast
down data, intermittent events, and transient vibration signals from non steady state
machinery.
The module simultaneously acquires a noise / vibration signal and a tachometer signal
from a machine, and records the resulting time waveform as a Microsoft Windows .wav
audio file.
The recorded time waveform .wav file can then be analyzed and re-analyzed as often as
necessary. Analysis results are presented in a variety of plot formats to best extract
and display the data in the most meaningful way. Available display formats include:
• Bode plot
• Nyquist plot
• Waterfall plot
• Spectrogram
• Table
One of the primary objectives of RUCD analysis is to determine a
machine’s critical speeds / resonant frequencies.
For optimized recording, the RUCD module should be used in
conjunction with an ultra high speed SD card. Saving data to a
card will greatly increase the amount of data able to be recorded.
SKF Microlog - GX Series 7 - 1
User Manual
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