Instructions for the installation and use of a pH meter
Thread Content
A pH meter is used to measure the pH value of the liquid inside the reaction tank. Side-mounted and top-mounted options were ruled out due to the use of enamel-coated reaction tanks as well as considerations related to subsequent calibration and maintenance. The current method involves using a pneumatic diaphragm pump to circulate the liquid within the tank, with a pH meter installed after the pump for measurement purposes. I wonder if anyone has other better methods; please share them.
Is no one answering? Don’t sink! !
This post was last edited by sunshineda_VGMP on 2019-3-22 09:01. I have never seen the reactor equipment mentioned by the original poster, and I’m not sure whether there are pipes inside or outside it. However, we have come across a type of pH electrode that can be installed in pipelines in combination with an electrode holder, or at an opening in the pipeline. By selecting appropriate tubing for installation and use in measurements, it is easier to maintain and calibrate the electrodes. I’m not sure if you have the means to consider this approach.
What is this? Could you explain it in detail? Thank you!
A type of electrode sleeve that can be removed and installed under pressure, with the sleeve itself possessing a certain pressure resistance range. I know there are two types: pull-type and rotary-type. The rotary type can be made fully automatic; it allows the electrode to be retracted into a protective sleeve in situations where there is significant risk of damage to the electrode, and it extends back out automatically once the conditions improve so that use can continue.
I don’t quite understand the reason for external installation. If you are not familiar with this process, please explain it in detail. Actually, having it external isn’t a big problem either.
When it is external, a pump is needed to draw out the material from the tank and create circulation; this requires the use of a diaphragm pump, which adds a significant amount to the cost.
First, you need to figure out the purpose of switching to bypass measurement at this point; if the mixing in the reactor is too intense or the temperature is too high, a bypass measurement may sometimes be necessary； If the change from top-mounted or side-mounted installation on the reactor to a bypass was done due to the difficulties associated with maintenance and cleaning, this problem can be solved using online plug-and-play brackets, namely the pull-type or rotating type shields mentioned by the previous speakers.