How to control pH levels continuously?
How to control pH levels continuously?
(OP)
Hi:
I'd like to continuously control the pH level of a tank of salt water. I'm looking for insight into pH sensors, specifically if all require calibration before each use.
My set point will be 6-7 pH.
http:// www.aquame rik.com/ca talogue/pr oduits.cgi ?category= analyseeau _controleu rsphindus& amp;lg=eng
This appears to me to be a pH controller that will work continuously. Does anyone know how this might work?
Thanks,
David
I'd like to continuously control the pH level of a tank of salt water. I'm looking for insight into pH sensors, specifically if all require calibration before each use.
My set point will be 6-7 pH.
http://
This appears to me to be a pH controller that will work continuously. Does anyone know how this might work?
Thanks,
David





RE: How to control pH levels continuously?
RE: How to control pH levels continuously?
The choice of sensor is probably more critical than the monitor that is used. You have to select a sensor that is appropriate for your application. Without knowing more about your application, you should probably plan on cleaning the end of you sensor once per week.
http:/
If you want to measure the pH in a tank, you will also have to have some type of mixer in the tank to homogenize the solution. Otherwise, you pH readings may be off.
RE: How to control pH levels continuously?
Thanks for the link. Are there technologies other than Endress + Hauser's Memosens that can be used for constant pH monitoring?
If someone could point me to information regarding the advantages and disadvantages of different sensor technologies, I'd appreciate it; specifically:
Gel vs. Liquid Filled
Ceramic vs. Teflon diaphragms
Open apertures and salt reservoirs