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Noknroll

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Reply with quote  #1 
I wanted to do some cross channel phase readings to day, 
I connected 1 accel lead to the left side turck port and another to the right turck port.
when i pressed the hardware check button i got the following.
Pic_0927_324.jpg 
If i removed the right side accel from the turck port, nothing changed.
When i removed the left accel i got this.
Pic_0927_325.jpg 
in the past I've had problems with the A-B splitter and ordered another one. it came with the wrong gendered BNC connection which is why i was trying the above set up.
So,
Question 1 should I be able to do phase with an accel attached to each accel turck port like above?
Question 2 are the bias voltages in photos normal or is there something wrong with the 2140?
  

OLi

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Reply with quote  #2 
B port either don't connect to the sensor or B port do maybe not have have power on but that is less likely as it indicate full voltage. So swap the sensors A-B, is the result the same? If so B port connection is suspect. Olov
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Edwin

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Reply with quote  #3 
Indeed. The 19 V is the open line voltage and 12 V is with accelerometer connected.
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James.

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Reply with quote  #4 
Hey Nok,
Looks like your A channel cable is ok but your B channel cable may be duff. Are you using the blue \ red cables that came with the 2140. One has pin configuration for the A channel and one for the B channel. You can connect them to either port on the 2140. James.
James.

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Reply with quote  #5 
And to answer your question, yes you can do cross channel phase like your image, as long as you are using the correctly pinned cables for channel B. If you use the splitter you can use any normally pinned cable as the splitter takes care of the correct pins. I Hope this makes sense. James.
Sinski

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Reply with quote  #6 
Nok

For reference the attached chart gives you a guide of what the BOV readings mean. 

BOV Readings.jpg 

Noknroll

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Reply with quote  #7 
Thanks all for the replies
I was connected with 2 coily route collection cables, which I've now learned are both pinned/wired for A channel.
I've gone through the clients spaghetti bowl of cables and the new A-B splitter is now working perfectly.
Honga

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Reply with quote  #8 
Hi Nok,

I work at Emerson in Australia. Feel free to get in touch if these things come up again! This is something we see a bit.

Thanks and Hi to everyone.
RustyCas

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Reply with quote  #9 
Honga, great to see you here.  As far as I know you and Drew Mackley are the only Emerson employees on this board, even though I sent direct invitations to a number of CSI people (Beth Mencer, Support Mgr in particular) suggesting it would be helpful (for all concerned) if they checked in here occasionally as we have a lot of fairly advanced CSI users. (I've used CSI exclusively for almost 30 years now)

Thanks for joining the forum.

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Noknroll

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Reply with quote  #10 
G'day honga,which office are you in?
Vibe-Rater

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Reply with quote  #11 
Perth is my guess... look forward to making contact too. rgds
Honga

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Reply with quote  #12 
Hey, I'm based in Melbourne. Chances are we're already talking!

I think Drew and Beth would have to be the most dedicated people in Emerson. Both incredibly busy, but will always help our customers (and me) out when needed. We have a fairly large and growing team globally, as the industry is learning of the good things CBM has always done for their bottom lines.

I've got updates coming to my email from the forum on new topics, and will try and consult here wherever I can and point you in the right direction. However, I am tasked day to day with the business side of things and not directly support, so I'm taking your advice on the applications expertise!
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