Starting pH controller automatically
Starting pH controller automatically
(OP)
Hey everyone,
I'm designing a control scheme at which I would like to "start" a pH controller after a level has been reached in the tank, since this is a semi-batch process. I won't be doing the loop drawings for the project, but I need to know whether this is feasible? Because I don't need the pH controller to be acting all the time. I only need it to open or close valves once the tank has filled and then stop acting when the low level is reached.
Thanks in advance!
I'm designing a control scheme at which I would like to "start" a pH controller after a level has been reached in the tank, since this is a semi-batch process. I won't be doing the loop drawings for the project, but I need to know whether this is feasible? Because I don't need the pH controller to be acting all the time. I only need it to open or close valves once the tank has filled and then stop acting when the low level is reached.
Thanks in advance!





RE: Starting pH controller automatically
m777182
RE: Starting pH controller automatically
Rheinhardt
RE: Starting pH controller automatically
RE: Starting pH controller automatically
If the ph controller retains its settings when power is removed, then just hook its power to a relay. When it powers up, it will should take a few seconds to go threw a self check, and then into normal operation. (depending on the type of controller I guess)
If your processing a batch, how do you keep the PH probes wet all the time?
What is the purpose of the PH controller? Is it actually controlling something like a pump? or just acting as a monitor/alert type of device?