Time limit for PH function

[carlosing74]

Hello, I wanted to put time limit for ph functions for security, do you know where you can turn in profilux?, I've seen only for level functions, greetings.

[carlosing74]

up

[Matthias]

there is no timelimit for pH control

maybe the control modes pulse/pause offer a solution for your purpose (see manual sensors control mode)

[carlosing74]

Dear Mathias, what I want is to set a maximum time of performance of the solenoid of CO2 with the function of PH, I want this function to the case of a loss of CO2 in the circuit or solenoid not working properly, can be with some function or combining several?, thank you very much.

[Matthias]

I know what you want

you can limit the max. on-time with the controlling mode pulse-pause

[carlosing74]

thanks.

[JeremyGelber]

Matthias,

Could you explain exactly how to achieve the following:

I have a calcium reactor which is controlled with a pH probe. The aim is to keep the pH stable at 6.4 by opening and closing the CO2 solenoid. I ONLY want the solenoid working between 12pm and 6pm, so irrespective of what the pH is reading outside of those times the solenoid should be closed.

From what I can see, I can either set the socket to be controlled via pH or via Timer but not both?

Thank you,

Jeremy

[GazzMan]

Matthias,

Could you explain exactly how to achieve the following:

I have a calcium reactor which is controlled with a pH probe. The aim is to keep the pH stable at 6.4 by opening and closing the CO2 solenoid. I ONLY want the solenoid working between 12pm and 6pm, so irrespective of what the pH is reading outside of those times the solenoid should be closed.

From what I can see, I can either set the socket to be controlled via pH or via Timer but not both?

Thank you,

Jeremy

I do this with the timer function.

[JeremyGelber]

Could you tell me how?

[GazzMan]

As pm mate, but for the course of this thread

In my case, I have timer 1 set to start at 0800 and end at 0000, (this is set up in timer 2 in processes ).

Then in program logic input 1 is set to timer 2
Input 2 is set to PH value1 decrease
Function set to AND.

So between the hours of midnight and 8am my reactor is off, and from 8 am, it comes on at the set point set under the ph probe settings