11
Idler Sound Monitor 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 SKF Idler Sound Monitor module turns an SKF Microlog into a hand held portable
monitoring solution for early detection of faults in conveyor belt support and return
idler rollers.
Figure 11 - 1.
Conveyor Idler Rollers.
The Idler Sound Monitor uses a high frequency microphone with a directional parabolic
reflector. The use of patented SKF enveloping technology applied acoustically allows
the Idler Sound Monitor module to distinguish between good and faulty idler rollers,
even in high ambient noise environments. It detects faulty rollers earlier and more
reliably than, for instance, when a maintenance worker walks the length of the conveyor
belt to listen for or observe faulty rollers. The Idler Sound Monitor helps detect
damaged idler bearings, lack of lubrication in bearings, damaged idler shells, metal-to-
metal rubbing, rumbling from abrasion with the conveyor belt and bearings that are
about to seize.
SKF Microlog - GX Series 11 - 1
User Manual
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