Just taken purchase of my new 2016 Apex. Very happy! However the Apex doesn't seem to be able to calibrate the blue pH probe.
I have the BNC connection plugged into the correct port. The probe is submerged in the correct 7.00 calibration fluid. I've restarted the system several times. All is get is "Error. Calibration failed. Probe was not able to be calibrated."
Suggestions would be very helpful...
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