VA alarm levels and criticality
VA alarm levels and criticality
(OP)
We started a Pdm program from ground zero with baselines,etc..
We have gathered up to at least 5-8 sets of readings with CSI RBMWare software.
I am needing some advice as far as how to determine what the alarm levels should be set at and what steps to take to acheive great results.
We have gathered up to at least 5-8 sets of readings with CSI RBMWare software.
I am needing some advice as far as how to determine what the alarm levels should be set at and what steps to take to acheive great results.





RE: VA alarm levels and criticality
Slemp,M.& Skeirik,R.(1999), "Using Statistics to Avoid Vibration False Alarms", P/PM TECHNOLOGY, Feb. 1999, pp. 26-30. The authors are from CSI and tried several methods of alarm settings. They found the best approach to be a combination of the "external alarm envelope method" based on a statistically derived composite spectrum and the "analysis parameter method" This approach was reported to correctly identify 100% of the machines in alarm and to appropriately exclude 93% of the machines not currently exhibiting a fault.
RE: VA alarm levels and criticality
http://www.technicalassociates.net/Proven_Method_4th.ht...
Dave G.
www.reliabilitydirect.com
RE: VA alarm levels and criticality
Hopefully I can start off the day with some progress with these good proven methods.
RE: VA alarm levels and criticality
Berry,J.E.(1990), "How to Specify Machinery Vibration Spectral Alarm Bands", Sound and Vibration, Sept. 1990, pp.16-28.
This is probably from an earlier edition of the report (which is now in its 4th Edition and costs $69US) and may miss some important information added later. S&V magazine has been offered free to qualified engineers working in acoustics and vibrations for over 30 years.