- Joined
- Jul 4, 2014
- Messages
- 3
- Reaction score
- 2
Hi folks, I am trying to find a way to control my CO2 regulator by PH. I would like to tell Apex to turn on the CO2 regulator when the PH is higher than 6.5 and shut it off when the PH is lower than 6.4. Basically, I do not want to keep the PH at a certain value, but instead in a range between 6.4 and 6.5. I have problem finding the correct code. I tried the following.
1. Set Off
2. If PH > 6.5 then On
3. If PH < 6.4 then Off
The problem with this is that once PH drops to below 6.5, the CO2 regulator will be turned off. The Ph will always be 6.5 +/- 0.01
1. Set On
2. If PH < 6.4 then Off
3. If PH > 6.5 then On
This one basically has the same effect as the first one. Once the PH is below 6.4, the CO2 regulator will be turned off. The Ph will always be 6.4 +/- 0.01
Does anyone has a way to maintain the ph in a range instead at an exact value? In this way, we can avoid frequent on and off cycle of the apex outlet and CO2 regulator solenoid.
Many thanks.
1. Set Off
2. If PH > 6.5 then On
3. If PH < 6.4 then Off
The problem with this is that once PH drops to below 6.5, the CO2 regulator will be turned off. The Ph will always be 6.5 +/- 0.01
1. Set On
2. If PH < 6.4 then Off
3. If PH > 6.5 then On
This one basically has the same effect as the first one. Once the PH is below 6.4, the CO2 regulator will be turned off. The Ph will always be 6.4 +/- 0.01
Does anyone has a way to maintain the ph in a range instead at an exact value? In this way, we can avoid frequent on and off cycle of the apex outlet and CO2 regulator solenoid.
Many thanks.