ORP Probe Calibration
- Thread starter simonv92
- Start date
Hi Simone, unfortunately you won't be able to calibrate it in reef-pi. If you are using an Atlas circuit you can run their example code to calibrated it and the calibration will be stored on the circuit.
Thank you Rob, I'm using this circuit:
github.com
I've read on the Reef-Pi official thread that Ranjib (if I remeber right) used to calibrate the ph probe using a Hanna checker using only that value in the calibration tab.. this is not possible anymore?
GitHub - reef-pi/pH-Board: pH board for reef-pi
pH board for reef-pi. Contribute to reef-pi/pH-Board development by creating an account on GitHub.
github.com
Unfortunately that circuit won't save the calibration. It is still possible to calibrate using another probe, when you do a 1 point calibration it simply shifts the pH value. If you type 7.5 as the calibration buffer you will get 7.5 after you save it. I think I miss understood, when you said 2 value I was thinking, I was thinking it wouldn't accept 2 as the value. I'm pretty sure reef-pi does 1 or 2 point calibration, maybe it's prompting you for 2nd point? It's been so long I can't remember the pH screen, can you post an image of it?
It kind of looks like it is calibrated. I see on the calibration popup you have 25757 but on the chart I see 225.00. I'm guessing you used 225mV calibration solution. That's what I would expect to see, the calibration popup always shows the raw value which can be confusing.Thank you again Rob, this is the calibrate page:
I've tryed to calibrate it using only the mid-point but doesn't work..
I think that's what would happen if you use both, did you try just the top field?
Yeah there's no limit on how many times you can use the EZO driver, by default the ORP uses address 98 and the PH address 99.I'll tryIf I'll try to use the Atlas Scientific EZO circuit (I already have the Ph one from an old project) can I read both ORP and Ph using the EZO driver in Reef-Pi?