×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

What is COF for level transmitter?

What is COF for level transmitter?

What is COF for level transmitter?

(OP)
I have provided the datasheets for selecting the level transmitters for some vessels. These level transimitters will be installed either on the top nozzels or on the bridles of the vessels. I have included the Normal, L, LL, Hi, Hi-Hi ligquid level information. The vessel overall dimensions are also shown.

But the problem is that the user wants to get the COF (center of float?) information for these level transmitters. What is the exact definition of COF? What is the purpose/reason of using this number? Is it really necessary to have it in order to select the correct level transmitter?

Thank you in advance for your help.  

RE: What is COF for level transmitter?

COF could also mean Center of Flange if it were a side mounted DP.
If it's a top mounted Magneto-restrictive type it wold have a float, perhaps they are trying to figure out how much of the float is immersed.
Or perhaps they don't know what they are talking about.
Regards
Roy

RE: What is COF for level transmitter?

I don't know about COF.  I am aware of marking on some displacement level devices.  For level transmitters most of us prefer the term displacer over float.  The term float is normally used for level switches.

Level switches have a center position with markings for the high level and low level switching points.  Depending upon the manufacturer, the marks could be the actual switching point for the minimum specific gravity of that model; or perhaps for water.  See the vendor data to assure that this is understood.  For mixed hydrocarbons, the marks are not likely the actual switch points for the fluid.
 

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources