Hach Conductivity Analyser

I think storing this device in a 15 G mechanical vibration environment with a randomly distributed frequency region of 15 to 150 HZ will significantly reduce the possibility of any bubble from forming. This will be a better solution than the obvious technique of using these sensors in a 1000 °C environment that will vaporize any liquid (and many solids) [assuming one atmosphere of pressure] thus making no bubbles possible at all from forming.

On a more serious note, contact your manufacturer, Hach, about how you are using their sensor design. Discuss with them your concerns and most importantly how you are using their product. You might find a simple sensor orientation will solve your problem (the bubbles simply float away) to the remote possibility that this is an intrinsic flaw in their sensor design approach.

Thanks for your sharing, But, I forgotten to explain that I am handling the treated water. (for drinking)

I am going to go out on a limb here. The answer this uninformed open forum has given you from the sparse information you have provided us agrees with the response you got from the manufacturer's help forum leads me to a simple conclusion. This is a PEBCAK error that is quickly approaching a 1D-10T alarm level.

PEBCAK?

Problem Exisists Between Chair and Keyboard

And why is this measurement of value?

Consult operator's manual.

Consult manufacturer's web site.

Call manufacturer's tech service.

Call manufacturer's tech to come out and fix the equipment.

Have done all above and manufacturer's tech service has no solution

Increase the flow rate.

Install an accumulator upstream of the analyzer with a air vent and automatic bleed-off port at the top which is large enough in size to allow separation of the entrained air from the fluid before it reaches the sampling takeoff line.

The other alternative would be to introduce enough pressure inside the sensor to prevent the micro-bubbles from forming during sampling.

In a general sense, bubbles form from a reduced solubility of the dissolved air, either from a increase in temperature or a drop in pressure. A change in location might stop this, or...

A bit tough when the manufacturer says they have no idea....did they even ask for a photo of how and where it is installed?

Here at CR4 we like photos so please either tell us how and where it is installed, or provide a photo or two,

You might be in an inadvertent eddy or some other oddity.

Just an added thought. Is the sensor measuring treated or raw water? Raw water may have bacteria which can create bubbles by releasing CO2.

I remember reading somewhere that bubbles tend to rise in water. Just move the sensor so it is under the pipe instead of above the pipe. I don't care what angle or temperature you install it at.

GA. Not accustomed to chilling water as most test waters where I live are well below 25ο C. A water supply high in bacteria will release CO2 if the sample is agitated. I did not see anywhere that the water is treated but that is an assumption one would make.

Option 4 ....

ROFLMAO! Yeah option 4. Option five is to run the sample through a Tibetan singing bowl (manually operated??? or automatically stroked 'round and 'round??? IDC.)

Maybe option 6 is simply run the sample through an open bucket (in the dark of course), with a high speed stirrer to de-saturate the CO2.