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Dale

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Reply with quote  #1 
Currently in the market for Vibration Analyser. I am trying to make a decision between Adash v4pro, Purftechnik Vibexpert ii, CSi 2140, and SKF microlog ax. I am relatively new to the field. I would greatly appreciate some perspective on what to look for. 

Thank you

Dale
JuddJones

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Reply with quote  #2 
Customer service is the first thing I look for. I also am not a big fan of purchasing something for 10's of thousands of dollars and then paying thousands of dollars a year in perpetuity just for the privilege of using it. I understand paying for software upgrades, but prefer companies that upgrade the software and give you the option to purchase if you need the functionality. We purchased 2 new data collectors last year, and our list came down to Ludeca Betavibe and SPM. We went with SPM and have been very happy with the service and functionality. I really liked the time traveler function on the Betavibe. Go out and take one high resolution waveform, and the rest is post processing. No need to setup routes before collecting data.  
fburgos

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Reply with quote  #3 

cs1 2140 is great I love it but its bad for your wallet, adash v4pro I’ve heard software has been improved greatly when I play with it years ago software was already good, I like the oneprod falcon this was one of my favorites on paper but couldn’t get a quote.

Dale

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Thank you very much gentlemen. I agree that having licencing agreement is a definite draw back for smaller company's. But I think in need to provide more info on the projected use of the unit. I am looking at setting up Vibe routes for sites that I am already doing maintenance at, Bump testing of high speed rotating equipment, recip compressors, trouble shooting, and field balancing. It seems that a lot of these devices are setup in a modular fashion which could help find what I am looking for. Are their any other units that you believe would be worth looking at. does anyone have a good measure how the service is with these devices.  
Shurafa

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Reply with quote  #5 
This is a frequent and important question. 
The answers or comments are dynamic as the technology and companies evolve.

To avoid being biased, I prefer to compare using a table in which each column is for one option. One column should be reserved for the weight you put for the corresponding feature. Not all functions /features are of the same importance to you. 

Regards- Ali M. Al-Shurafa  
Vibe-Rater

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Reply with quote  #6 
Can't go wrong with a 2140 but they are expensive. Here in Australia the US cost gets worse through E/R and that has been steadily getting worse over past few years.  When at SKF (10 yrs ago) they didn't have MPM - RPM ratio, they wanted me to put a tach on every paper machine roll (they must have been drunk) Commtest doesn't have that either nor does the onepro Falcon as I was told by local sales person with serious practical background. CSI "X" function has now been copied by SKF and Commtest I am told.

You can have a list of features for comparison as long as your arm but it is the subtleties that make the difference.  And you only find out those - not from sales people - but through a good few months of actual use at your plant.  Inevitable "management" often decides on cost and has very little understanding of coal face requirement. So Dale, being relatively new, you are sales person fodder I'm afraid.  There's nothing wrong with being biased if you have successful miles on the clock with something you have proven to work. There's the rub! rgds
MarkL

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Reply with quote  #7 
You mention Microlog Ax better be fast as not many left Skf are sticking to the GX75 (which is a nicer portable instrument size and weight wise)

If your doing one off testing(no routes) oneprod have another stand alone unit with auto diagnostic called Fixturelaser SMC .



As others have said see can you try a few out and decide what works best for you.
AdashUSguy

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Reply with quote  #8 
Hello Dale
This site is not for sales but if you would like me to reach out and do a remote demo on the Adash software let me know. 
These systems are super fast 64kHz sample rate all four channels plus a speed sensor. 
5 year warranty on the unit.
lifetime on sensors and cables. 

Supported 100% here in the US.

Thanks

Vibe-Rater

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Reply with quote  #9 
Hi Adash,
Does Adash have the equivalent to CSI "X" function.?
And does it have the equivalent of MPM -> RPM Ratio ?
And maybe a global speed set?

Or alternatives? As you will have gathered I am cynical because I have used quite a number of brands so have been burnt severely before. So hence my questions.

For those in the same line of work as me though these should be really important questions.
Vibe-Rater

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Reply with quote  #10 
So vibration is not necessarily vibration. Within this field there is seismic, Earth quakes, power industry, wind turbines, ok refineries which is basically fixed speed stuff. And mining but there are also paper machines. Variable speed. and lots of Bently stuff prox probes etc. Hydro.  Nuclear There are quite a few industries I don't have a lot of experience in if any. (after 26 yers in the business) So you can be a doctor but beyond that you might specialise.  So for those that jump on a paper machine be careful please.  There was once a man that said to me it's only a shaft with 2 bearings.  Years later he personally said to me I do understand now (after he incorrectly orderd a Yankee gearbox replacement) some differences in industries and am hopefully wise enough to be thoughtful and careful of what I dont know.  So in the past I was entertained with several brands and obviously did not originate from variable speed machines. That was obvious really quickly. So is Adash being used in the paper industry?  The reason i ask is that if the primary design stems from fixed speed only then there is a whole world that might be missing from the design.

Vibe-Rater

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Reply with quote  #11 
i sort of think back to my disco days. You know. when the songs changed on the dance floor.  John Travolta Different beat / timing. i always fell in line really quickly. Then there were those that kept on bouncing up and down to a completely different beat.
Vibe-Rater

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Reply with quote  #12 
Sorry to go on... I do believe that if you are proficient at variable speed machines then you will be fine with fixed speed machines. Not necessarily the other way around. Bit like if you learnt to drive in a car and learnt in an automatic but should have learned in a manual (I think in US they call it stickshift) Europeans almost entirely drive manuals. In Australia it is a mix oif both and US I'm thinking nearly all auto.  I am very happy to be corrected. It's all learning for me. I'm not totally sure if this is still the case but we have drivers licences for manual and automatic. Meaning you can't drive a stick shift if you only have an automatic licence. It certainlly was in the past but I haven't had to revisit my licence for quite a while and I passed my licence in a stickshift.  So if you passed your drivers test in a stick shift then you can drive both. But for the easy way out auto and the cops will find you!!
Vibe-Rater

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Reply with quote  #13 
Getting way off topic now. Apologies.
AdashUSguy

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Reply with quote  #14 
No problem it's easy to get off topic when your passionate about a technology and vibration is pretty cool stuff once you get the bug. I've been doing it since 1995 and started a service company in 2005, we now have 10 of us and going pretty good here in the southwestern US. I learned on Emerson and still have three 2130 units, and i think about three old 2120 units that we just have a hard time letting go of. For me the Emerson was great but just too expensive for a service company to scale and overkill for about 90% of the balance of plant equipment. The Adash software has come a long way as I've worked with them to incorporate many of the things I liked about Emerson and some of the things I wish it did do.
Adash has the X key working pretty good and are perfecting it, I expect before too long the sideband's will work etc. 
I will hear back soon from the factory on a MPM-RPM ratio setting, but if it is missing and there is a good call for it then it will be out soon in one of their updates.
The global RPM function is actually quite nice, not only can you set from any spectrum the RPM but it will allow you to update current and historical data on not only the measurement point but the whole machine and will adjust for any ratios. You can set the time line to be just current readings or any timeline you like which comes in handy if you realize that some of the past data was set up wrong, all in about 10 seconds time to do. Another good feature is no annual support fee, and you don't need a version of the software to upload and download a route into their analyzers, just a free file transfer app. For me those two things were a big cost saver as my techs in the field did not need a version of the software and i did not have the annual cost for the multiple licenses, I still have four AMS licenses and am thinking of selling two of them BTW. 

It is a simple right click to delete or edit any data or spectrum which makes it easy to keep your database clean and trends cleaned up.
Also we have three Level III analyst on staff to answer questions and support instead of an offshore answering and support center like a lot of other corporations. 
For the variable speeds when you first start the readings at a machine, they took it one step past the Emerson speed detection by showing not only the spectrum but a table of the five highest peaks in frequency with the highest amplitude already selected, most of the time its just a quick acknowledge button and off you go, but you can toggle down and select one of the other in the list or type in your own speed, or move the cursor over to a desired peak. 


I think i extended the offer before, but if not I'd be glad to do an online meeting and show you the software, paper mills are definitely a special application and I'd like to hear what is needed. My background is onshore and offshore oil and gas so a pretty good mix of equipment but no paper mill type stuff. 

thanks for the reply 



Dale

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Reply with quote  #15 
Actually that would be great. The supplier we have here is really friendly but some times its nice to see the product from some one that isn’t trying to sell it to you. The company that I am setting this up and running it for it service company in Alberta Canada.
They specialize in turbo machinery both chemical and oil/gas facilities and distribution. The goal is to assist start with assisting some of our smaller clients that it doesn’t make sense to have a vibe guy on staff or have the equipment just sitting there most of the time. That is a fantastic amount of information and would like to talk further about what some of the specialty terms are .

Thanks Dale
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