PH control for calcium reactor

[YoeriVandaele]

Hi,

I'm trying to set the next thing up, but somewhere I must be doing something wrong:

The goal is te read the PH in the calcium reactor with a nominal value of 6,9 and a hysteresis of 0,4
If set these settings in the PH-value 1, sensor is active, no nocturnal change, alarm on with deviation of 1,00 PH.

Switch channel 3 is the socket that has the valve to open the CO2 in order to decrease the PH.
Settings in switch channel 3 are function ph-value 1 and functional parameter decrease.

In my thinking this should activate the socket when the PH reaches 7,1 PH and should deactivate when at 6,9?
Am I correct with this thinking?

However the socket remains off, no matter what happens.

What I did to test before I put the sensor in the reactor is putting the sensor in my tank with nothing connected to the socket (just to see if it turns on and off when desired):
My current PH in the tank is 8,36. I've set the sensor to nominal value 9 (which should activate the socket): nothing happens, remains off.
When I put the nominal value at 7,5 to check the opposite, nothing happens neither, also remains off.

So I guess I'm doing something wrong?

thx, Yoeri

[YoeriVandaele]

PS: I also notice that my touch display doesn’t show any arrows up or down.
Did the changes in myghl

[YoeriVandaele]

I think i found it.
There’s nothing in my GHL to set control.
On the box itself there’s an extra functionality.
The control was set to off. Now I set it to two way control.
I hope it works now. Nothing in the manual about that.
In general I think the manual is poor

[Thilo]

Yes, with two way control it works like you want it. This should actually be the default value.
In the programming guide you'll find all informations about this: https://www.aquariumcomputer.com/downloads/profilux-4-programming-guide-v7-02/

[YoeriVandaele]

Thank you Thilo for the manual.
I actually still had the profilux 3.1 manual, as this is the one I'm having. But I think the manual for the profilux 4 that you've provided is far more complete.
Thank you...

[Thilo]

Did you read the newest version of the programming guide? https://www.aquariumcomputer.com/downloads/profilux-3-3-1-programming-guide-v6-15/