Just a heads up. You will not be able to perform calibration unless you first enable the PH probe on the controller. Enabling and calibrating are done easiest on the Profilux itself, not the pc software. Once you enable the probe from the menu, only then will "calibration" show up under sensors- ph probe...
This incredible controller is surpassed only by the uselessness of the manual. Hey GHL: Pay some guy to do a workable translation please!
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