×
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

promag 50 E&H Flowmeter

promag 50 E&H Flowmeter

promag 50 E&H Flowmeter

(OP)
hi every one
i had a problem with my flow meter E & H promag 50
my flow is 450~500 M[3][/h] and in this time is down to 300 M[3][/h] and my flow meter oscillation between 50 to 350

RE: promag 50 E&H Flowmeter

Converter electronics remotely mounted from the flow tube manifest noisy, oscillating readings when the cable used to connect the flow tube to the electronics does not meet the manufacturer's shielding and grounding requirements.

Poor grounding (earthing) causes noise issues which can affect the reading to a large degree, as much as you describe.

Pulsing flow tends to produce lower readings than normal but only at full flows.

Aeration (air bubbles) can cause unstable readings in mag meters, but generally the flow values are higher than reality, because the air bubbles are misinterpreted as actual liquid volume.

Coated electrodes in the flow tube can cause a lack of reading.

There could be a rag stuck in the flow stream/pipe, not necessarily in the flow tube, causing low flow and osciallation.

On one brand of magmeters, the loss of connection to one of the two electrodes would halve the proper reading.

Really noisy highly conductive slurries might need an AC mag, not pulsed DC technology.

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