×
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

Submerged pH probe in Chemical tank?

Submerged pH probe in Chemical tank?

Submerged pH probe in Chemical tank?

(OP)
Hi, I need to have a pH/temp probe in a chemical mixing tank. This tank will only be used about once every three months and the rest of the time will be empty. It will also be used to neutralize chemical. I am having trouble figuring how to make the pH probe wet at all times. Even if we left a little bit of water in the tank, it would evaporate after a couple of months. I think the easiest method we've thought of is to just have the operator remove the probe and put it in solution every time the tanks are not in use. Any ideas better than that?

RE: Submerged pH probe in Chemical tank?

If its mixed using a recirculation pump, put the ph in the  recirculation line.  If its a paddle mixer, make a pumped recirculation line especially for the ph sampler.  I often have to pump out a sample to take density readings from a pipeline that must allow pig passage, so I can't put any sensor inside the pipeline.  A small pump in a "bypass" line to the densitometer and reconnecting a couple of meters downstream solves the problem of taking the reading without losing the densitometer probe to a passing pig.

**********************
"Being GREEN isn't easy" ..Kermit
http://www.youtube.com/watch?v=hpiIWMWWVco

http://virtualpipeline.spaces.live.com/

RE: Submerged pH probe in Chemical tank?

You are correct, pull the probe when tank out of service.

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