Doing freshwater here, and need some help with my program.
I want the CO2 to be on during light hours (14-22), but with some safety to not inject if pH goes so low to hit 6.2
on the other hand, I also want the pH to be somewhat maintained to not go above 7.2 during the night/rest of day (lights off hours). I didn't want to just have it as "on" if pH >7.2 cause it would run all the way until it hit 6.2, so I would be happy maintaining something near 7ish during the night.
So I made a virtual outlet
[pH_night]
Fallback OFF
If Time 22:30 to 23:59 Then ON
If Time 00:01 to 13:30 Then ON
If pH > 7.20 Then ON
Defer 005:00 Then ON
If pH < 7.00 Then OFF
Defer 005:00 Then OFF
and then on the actual outlet controlling the CO2 injectors;
[Co2 outlet]
Fallback OFF
Set OFF
If Time 14:00 to 22:00 Then ON
If pH < 6.20 Then OFF
Defer 005:00 Then OFF
If Output pH_night = ON Then ON
If Output pH_night = OFF Then OFF
when I look at the pH chart and overlay the virtual outlet [pH_night], it definitively kicked in when pH was rising during the night, but I don't understand why it did so before pH was above 7.2.
Also, I want to make sure that the virtual outlet as no impact during normal light hours.
thanks
Screen Shot 2018-04-08 at 9.54.30 AM.jpg
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