GE Xcellerex XDM Series Operating Instructions Manual page 213

Step
2
3
Xcellerex XDM 50-1000, XDUO 100-1000 mixers Operating Instructions 29251615 AD
Action
Make sure the measured pH value shown on the home screen is a valid
value.
On the home screen, tap pH top open the pH Detail screen.
7 Operation
7.3 Operate Xcellerex XDUO mixer
7.3.3 Prepare the pump
213