×
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

PT100 Question

PT100 Question

PT100 Question

(OP)
Having one Reliance motor, in the RTD specification they write: "PlATINUM,0.00392 TCR".
I'am try using AllenBradley RTD input module , but as of the "input type selection", one is the 100PT(385), other one is the 100PT(3916). Which one shall select then to make the bit seeing in the channel configuration word for the SLC Slack?

RE: PT100 Question

(OP)
Could you tell me why?

RE: PT100 Question

Do you understand what the numbers are for?

They represent the  alpha of the resistance - temperature equation for RTDs.  There have been two standards for a long time.  The American 0.0392 one and the European 0.0385 value.  They have been slowly mixing and matching to where I would say the European one is now more common.  The 3916 you are mentioning is really referring to 0.03916 which is close to 0.0392.  I'm not sure if they are the same or not.  I have never come across 0.03916 stated before, but someone is always coming along with 'their better way'.   At any rate call it 0.0392 and then check it via calibration.

Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com

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