I am having difficulty calibrating my ph probe. I used to solution several times and it still only goes to 7.89 and 10.26. My pinpoint is calibrated and it reads correctly the apex reads really low. What do I need to do?
I am having difficulty calibrating my ph probe. I used to solution several times and it still only goes to 7.89 and 10.26. My pinpoint is calibrated and it reads correctly the apex reads really low. What do I need to do?
Run a calibration with the probe unplugged, then try again.
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So unplug prob calibrate with nothing plugged in and then recalibrate? What does this do?
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