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Hi,
Set U Min to 0 et U Max to 5
Increase Hysteresis for higher range.
For exemple, with U Min set to 0v et U Max set to 5v and pH hysteresis set to 1pH:
with nominal value = 8.0 and current ph = 9.5 you will get 5v
with nominal value = 8.0 and current ph = 8.0 you will get 0v
with nominal value = 8.0 and current ph = 6.5 you will get -5v
But as 1 is max allowed value for hysteresis we can't get higher range than 1.5pH for 10V (reduced to 5v in your case)
Gaël
I see how my example could be construed as trying to achieve 0-5v. I've already decided I'm going to use a voltage divider to prevent damage of the arduino. Let's forget about U and U max for a moment. I want 1-9v to provide a pH range from 7.65-8.46. That a scale of 0.1v = 0.01pH.
Example, when pH = 8.30 the output voltage would read 7.5v. another example, when pH = 8.00 the output voltage would read 4.5v.
Can this be done with programmable logic? Or any other way?
Hi,
Sorry, I already told you what can be done.
Forget programmable logics, they can't do that and can only be applied to switchable channels.
Gaël