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Pavel

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Posts: 4
Reply with quote  #1 

Hello! Guys diagnostician, share your experience working with Nspeсtor (CSI 2140) is it worth buying this module? Does he help correcting the diagnosis? Share your experience!)
OLi

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Reply with quote  #2 
People are in general a bit negative to it. It is some work to start it up and I have used it many years ago and even sold it. So that case was that the number of machines to be covered was increased but not the manpower so suggested use was to extract the machines that needed human attention to "optimize" analysis. When I used it and I and Nspectr agreed it was a real fault. Once it found a problem that I wrote in the report and I can't say I was that sure but it was correct. It does find a lot of locked couplings but that may have improved. If it still is the case you can dig down and find why it says something and learn something. So if you have a lot of machines and limited manpower, part from the initial work and hurdle it may have some use. It is also nice to have a second opinion part fom you guys here. By the way I have data looks like a garden fence  from a hydroplant with a gearbox and some pictures, it is trending up to 25mm/s in a month, only axial both turbine and generator........ Owner asks if he need to swap bearings again as he "recently" did just that. "Some" indication of looseness in the data. More like an example of what would be nice to enter in some software and forget?
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Good Vibrations since early 1950's, first patented vibrometer 1956 in the US.
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Walt Strong

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Reply with quote  #3 
Olov,

"By the way I have data looks like a garden fence  from a hydroplant with a gearbox and some pictures, it is trending up to 25mm/s in a month, only axial both turbine and generator........ Owner asks if he need to swap bearings again as he "recently" did"

Low head vertical shaft hydro with thrust bearing in gearbox had high vibrations. Took a while using PeakVue and other Demodulation to get 0.5xSS as dominant. The ball bearing cage speed was 0.5xSS, because both fixed and rotating races (rings) had same diameter.

Walt
OLi

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Reply with quote  #4 

Yes, things like that may fool the best software:-) and humans. I just had a call from a guy with exactly the same thing, why do they need to have bearings like that?
In the hydroplant case my customer is at the site today and he got calibrated ears and a stethoscope and a instrument so he will be fine. In the other case he got a clear
outer ring damage also so the bearing is doomed anyway. So things play out one way or the other also w/o software help....


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Good Vibrations since early 1950's, first patented vibrometer 1956 in the US.
http://www.vtab.se
Vibe-Rater

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Reply with quote  #5 
your Russian is better than my Russian...

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