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


Compensating for a specific substance in conductivity measurements

Compensating for a specific substance in conductivity measurements

Compensating for a specific substance in conductivity measurements

Hi everyone,

I've been asked to confirm that a toroidal conductivity probe inserted into a line that holds CIP (clean in place) solution, which in this case is WFI (water for injection) and NaOH upto some concentration, is compensated for NaOH. I know conductivity meters can be temperature compensating, but can they also compensate* for specific substances? I believe this is neither necessary nor possible, and I am hoping the vendor can just reference the order package, but I'm curious to know if my instinct was right or wrong.

*Compensation can mean to correct the measurement so as to ignore contributions from the NaOH or ensure the contribution from the NaOH is properly taken into account (e.g. possible non linear contribution to conductivity?).

Analog conductivity sensor Indumax CLS54


RE: Compensating for a specific substance in conductivity measurements

I got confirmation from the vendor of the instrument that it is possible to compensate for some common chemicals (NaOH, HCl, NaCl, etc.). However I am not sure why compensation would be required since a direct measurement of the solution's conductivity/resistivity is taken. Any input is appreciated!

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!


Research Report: Augmented Reality for Maintenance, Repair and Overhaul (MRO)
The term Industry 4.0 denotes a cluster of technologies that’s poised to fundamentally reshape manufacturing and bring about a new industrial revolution. These include 3D printing (AM), the Industrial Internet of Things (IIoT), artificial intelligence (AI) and mixed reality technologies, more commonly known as virtual reality (VR) and augmented reality (AR). Download Now
Research Report: The Next Product You Design Might Be a Service Thanks to the IoT
For this report, the editors of engineering.com interviewed companies on the leading edge of implementing products as a service with a view to describing and categorizing the types of products that can be delivered as a service and the technologies that make it possible—one company in high-tech manufacturing, another who helps ensure access to clean water in developing nations, and a third in the mass transportation industry. Download Now

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