For anyone else switching here's my little gotcha list so far. Odds are some of this was already covered, and some of it is buried in the user manuals but it's easy to overlook, at least it was for me:
- Save, save, save,... save. Did I mention, save?
- Time must be set correctly or you cannot add devices to myghl, they won’t give the serial number back instead just ---
- Firmware update - Don’t assume the com port is the same as the initial setup, always check with that device manager button
- PH can be calibrated on the profilux unit itself, but not on the app / myghl
- Firmware updating PAB devices requires removing all other pab devices except the one to be updated
- Wifi module updating has changed since the walk-through video material. The ESP is a separate download, not part of GCC, and the internal webserver doesn’t look at all like it does in the older videos.
- Forgot to add the water filter amount to the KHD line volume, though in my case it doesn't seem to affect the dkh reading at all with or without that 7ml addition?
- MyGHL setup security key changes at set time intervals, don’t try and re-use the one from even a few minutes ago, have to do it with GCC open.
- KHD ph port needs to be really cinched down, and will probably require a wrench/spanner to assist with. Just don't over-do it.