- Joined
- Nov 24, 2019
- Messages
- 239
- Reaction score
- 179
Hello all! I was hoping to get some help with calibrating my pH probe with Reef-pi. To give some background, I am using a Robotank build with the integrated pH board. The pH probe that I am using is the Milwaukee Instruments Probe.
From everything I can tell, reef-pi is getting a signal from the probe. When I go to calibrate I rinsed the probe in fresh RODI and dipped it in 7 calibration fluid. The current reading it spit out was around 12.5. I waited for it to stabilize and hit run.
I took the probe out, rinsed in RODI again, then put it in 10 pH solution. Here the current reading went up a little. I let the reading stabilize again and hit run.
Now I place the probe into my sump and I'm getting a negative reading. I've tried to recalibrate a couple of times but keep getting similar results. Also whenever I am in the calibration menu, I get current readings in the 12.5 range, regardless of what I previously calibrated to.
Can anyone suggest a fix to this or why I am getting this incorrect readings?
From everything I can tell, reef-pi is getting a signal from the probe. When I go to calibrate I rinsed the probe in fresh RODI and dipped it in 7 calibration fluid. The current reading it spit out was around 12.5. I waited for it to stabilize and hit run.
I took the probe out, rinsed in RODI again, then put it in 10 pH solution. Here the current reading went up a little. I let the reading stabilize again and hit run.
Now I place the probe into my sump and I'm getting a negative reading. I've tried to recalibrate a couple of times but keep getting similar results. Also whenever I am in the calibration menu, I get current readings in the 12.5 range, regardless of what I previously calibrated to.
Can anyone suggest a fix to this or why I am getting this incorrect readings?