×
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

Erratic Temp Transmitter

Erratic Temp Transmitter

Erratic Temp Transmitter

(OP)
Hello,

I have a temp xmiter that rolls along just fine 99.9% of the time. then in a very erratic way it will indicate a temp that is 100 degrees higher than static temp. Any thoughts on what might be the issue? I'm not finding bare conductors where I can check by hand.

RE: Erratic Temp Transmitter

I'm not sure what you're asking. There is no thermal phenomenology that can do that, so it's an electrical problem. Your choice is to replace it or have the manufacturer fix it, given that you haven't even provided a manufactured name or model number.

TTFN
FAQ731-376: Eng-Tips.com Forum Policies

Need help writing a question or understanding a reply? forum1529: Translation Assistance for Engineers

RE: Erratic Temp Transmitter

If the 100° increase value is the same as the upper span value, then the transmitter is going into burn-out condition because it sense an open circuit on the input. An intermittent wire connection, due to a poor crimp or stipped wire ends that are sheared through but electrical continuity is made by cable pressure that is momentarily relieved can cause short term intermittent connections.

I recall one temp transmitter that would fail into burn-out mode when the transmitter body temperature got too high and it overheated.

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