05-22-2021, 09:28 PM
(05-22-2021, 09:15 PM)Rob F Wrote: Very cool, I think it's awesome reef-pi can integrate into these 3rd party apps.
What kind of readings were you getting for pH? It's common if you use say 6.86 it won't read that but should be somewhat close. If you did a single point calibration with 6.86 after setting point one you should then get 6.86 from the probe after you close the calibration window. The value showing in that is always the uncalibrated value so you can only see the effects once you enable the pH.
Sorry about the crappy forum, it's frustrating there are no extensions to make it easier unless the images are hosted on a 3rd party site which I'm not really a fan of. It seems forum packages like this aren't widely used anymore because of social media they say, so development has come to nearly a standstill and few are making extensions now.
Rob, I was confused about the term 'mid point' in the calibration. Maybe I was doing something wrong.
First time i did it i had 6.86 and 9.18 solution. So i put the probe in 6.86 and entered it in midpoint. Repeat that with 9.18 in second point. Then I left the probe in the 9.18 solution and it was showing 9.5.
Unless it was meant to put the midpoint, (6.86 + 9.18 )/2 = 8.02, so I enter 8.02 as mid point and 9.5 as second point? If that is the correct way I will calibrate it again.
The way I did it is not so good, I used a pH pen to measure the water and used that to calibrate my probe using a single point calibration. I think the value relatively should be correct, just not sure about the precision of the measurement.
