GE Xcellerex XDM Series Operating Instructions Manual page 219

Step
3
Xcellerex XDM 50-1000, XDUO 100-1000 mixers Operating Instructions 29251615 AD
Action
Type an applicable value (% of total pump speed range, as described above)
into the PHC_125 Manual CV text box.
Result: The instrument keeps the pump speed as specified, using a split range
control loop.
7 Operation
7.3 Operate Xcellerex XDUO mixer
7.3.4 Control the pH
219