Submerged pH probe in Chemical tank?

[MKM16]

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?

 

[BigInch]

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.

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"Being GREEN isn't easy" ..Kermit

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

 

[ash9144]

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