×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

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!

*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

Damage on Clamp on Sensors of Non contact ultrasonic clamp on Flow Meter

Damage on Clamp on Sensors of Non contact ultrasonic clamp on Flow Meter

Damage on Clamp on Sensors of Non contact ultrasonic clamp on Flow Meter

(OP)
The sensors of Flow meter (Non-contact ultrasonic clamp on) got damaged on the sensor face. It worked well for six months after installation, however, it suddenly got damaged on the sensor face. Nobody touched it after initial installation. What could be the possible reasons for this damage? Pics attached

How about the following possibilities?
1. The sensor rails were tightened more than required
2. Expansion of pipeline

RE: Damage on Clamp on Sensors of Non contact ultrasonic clamp on Flow Meter

Is the "damage" you refer to the cracking and breakage of the yellow stuff? What is the yellow stuff, and what are the operating conditions to which it was subjected?

TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! https://www.youtube.com/watch?v=BKorP55Aqvg
FAQ731-376: Eng-Tips.com Forum Policies forum1529: Translation Assistance for Engineers Entire Forum list http://www.eng-tips.com/forumlist.cfm

RE: Damage on Clamp on Sensors of Non contact ultrasonic clamp on Flow Meter

(OP)
The yellow stuff is the sensor face which is mounted on the pipe which transmits and receives the sound waves. The operating temperature was around -20-degree celsius before 2 months and now it is 25-degree celsius.

RE: Damage on Clamp on Sensors of Non contact ultrasonic clamp on Flow Meter

Chemical attack? What has been on the outside of the pipe, either in the atmosphere or through leakage or washdown?

RE: Damage on Clamp on Sensors of Non contact ultrasonic clamp on Flow Meter

(OP)
The pumped liquid is just the raw water. There is no possibility of any chemical attack. It seems that physical force can be one of the reasons why the sensors were damaged, but I do not know why it got the physical force

RE: Damage on Clamp on Sensors of Non contact ultrasonic clamp on Flow Meter

What is the yellow stuff made of? Was it semi-liquid when applied? I see other yellow stuff that looks like remnants of a grease-like material.

Perhaps you can provide more details, like the installation process, materials, make/model.

TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! https://www.youtube.com/watch?v=BKorP55Aqvg
FAQ731-376: Eng-Tips.com Forum Policies forum1529: Translation Assistance for Engineers Entire Forum list http://www.eng-tips.com/forumlist.cfm

RE: Damage on Clamp on Sensors of Non contact ultrasonic clamp on Flow Meter

(OP)
It is a mineral grease applied on the face of the sensor to increase the conductivity of the sound waves. It is a block of plastic/ nylon material.

RE: Damage on Clamp on Sensors of Non contact ultrasonic clamp on Flow Meter

" Nobody touched it after initial installation."

The nobody who touched it doesn't want to admit that he touched it.

RE: Damage on Clamp on Sensors of Non contact ultrasonic clamp on Flow Meter

Certain nylons tend to deteriorate on their own. The coupler used between the collet head and motor in a Dremel tool is one such. They last about 5 years and then crumbles under load.

TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! https://www.youtube.com/watch?v=BKorP55Aqvg
FAQ731-376: Eng-Tips.com Forum Policies forum1529: Translation Assistance for Engineers Entire Forum list http://www.eng-tips.com/forumlist.cfm

RE: Damage on Clamp on Sensors of Non contact ultrasonic clamp on Flow Meter

If I remember correctly, the last time we installed these US clamp on meters, we installed chain guard fencing around each of them, since they were located close to grade. We also paid the meter supplier to install and commission these into service.

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! Already a Member? Login



News


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close