Good evening,

My pH reading instantaneously went from 7 to 11.8. I checked it and the actual pH is fine. I do not have any calibration solution and cannot get any until Wednesday. Is there a way to reset the probe?

1.) I made sure there was no dust or corrosion in the bnc plug.
2.) I made sure there was nothing physically in the end of the probe
3.) I also swirled the probe in the water to make sure that it was "clean".

Any suggestions?

Thanks

Chuck