We have installed a "iron filtration unit" at work. It filters iron out of our well water. I have control of the well's pump speed and have a water tank that we are pumping into. The tank has a level transmitter on it. I have a PID loop set up with the tank level as the process variable. The pump speed is the control variable. I am simply maintaining a setpoint in the water tank.
Here is the kicker! I have to maintain a flow rate of at least 60 gpm and not more than 300 gpm. I can't figure out how to set it up with the flow limits! Oh, the system also has a flow transmitter so I have access to that also. Do anybody have any ideas on how to set this up? Any help would be greatly appreciated!
Thanks, Sterling.
Here is the kicker! I have to maintain a flow rate of at least 60 gpm and not more than 300 gpm. I can't figure out how to set it up with the flow limits! Oh, the system also has a flow transmitter so I have access to that also. Do anybody have any ideas on how to set this up? Any help would be greatly appreciated!
Thanks, Sterling.