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Looking to use a solenoid valve to turn off when it reaches a certain PH level but turn back on after a few minutes to essentially check and turn off again if necessarily.
Figure this may reduce wear and tear on valve and reduce CO2 media consumption a bit.
What I think would work but please correct me if wrong
Fallback OFF
If PH>8.X Then OFF
Defer 005:00 Then ON
Thanks
Lawrence
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It's best to do hysteresis with CO2 solenoids or they will burn out pretty quick. Better to do something like this.
Fallback OFF
If pH > X Then ON
If pH < Y Then OFF
You might be an engineer if...You have no life and can prove it mathematically.
Thanks. I was thinking of extending the defer time to 15 min possibly just to avoid burning out the solenoid valve for that reason. I am just concerned about the yo-yo effect of off/on depending on how fast it gets to the upper/lower ranges
especially on the low side of the PH range between midnight and 11 am when the lights are off.
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