The Elsmar Cove Business Standards Discussion Forums More Free Files Forum Discussion Thread Post Attachments Listing Elsmar Cove Discussion Forums Main Page
Welcome to what was The Original Cayman Cove Forums!
This thread is carried over and continued in the Current Elsmar Cove Forums

Search the Elsmar Cove!

Wooden Line
This is a "Frozen" Legacy Forum.
Most links on this page do NOT work.
Discussions since 2001 are HERE

Owl Line
The New Elsmar Cove Forums   The New Elsmar Cove Forums
  Measurement, Test and Calibration
  Calibration problem - Verification vs. Calibration

Post New Topic  Post A Reply
profile | register | preferences | faq | search

UBBFriend: Email This Page to Someone! next newest topic | next oldest topic
Author Topic:   Calibration problem - Verification vs. Calibration
Lurker (<10 Posts)

Posts: 3
From:Boston, MA USA
Registered: Jul 1999

posted 08 July 1999 01:56 PM     Click Here to See the Profile for Oleg   Click Here to Email Oleg     Edit/Delete Message   Reply w/Quote
My job is to design a data acquisition system for an enviromental chamber which will be used for package testing. I have an option to buy a complete system, which would enable me to easily calibrate thermocouples on site, from one company, however their price is unreasonably high.
Thus, I am trying to use a combination of equipments from different companies (data loggers, calibrators and thermocouples). I would really appreciate if somebody could answer the following question:

After one notices a drift in the calibration of the thermocouple (using a dry well or a temperature bath), is there an automatic way to compensate for it? Or would I have to send the faulty thermocouple to an outside lab?

IP: Logged

Forum Contributor

Posts: 89
Registered: Jun 99

posted 08 July 1999 02:43 PM     Click Here to See the Profile for Lassitude   Click Here to Email Lassitude     Edit/Delete Message   Reply w/Quote
I'm old school, but as I remember when a thermocopuple started to drift we re-welded the end of the thermocouple and evaluated the monitor box. The thermocouple only provides a voltage or resistence at a temperature. This is to say you calibrate the box which measures the wire resistence/voltage - not the thermocouple. I would think you would have to repair the box if there is a drift. I do not know of a simple 'corrective' device or method.

IP: Logged

All times are Eastern Standard Time (USA)

next newest topic | next oldest topic

Administrative Options: Close Topic | Archive/Move | Delete Topic
Post New Topic  Post A Reply Hop to:

Contact Us | The Elsmar Cove Home Page

Your Input Into These Forums Is Appreciated! Thanks!

Main Site Search
Y'All Come Back Now, Ya Hear?
Powered by FreeBSD!Made With A Mac!Powered by Apache!