GE Xcellerex XDM Series Operating Instructions Manual page 159

Calibrate the pH probe
Perform the autocalibration of the pH probe as follows:
Step
1
2
Xcellerex XDM 50-1000, XDUO 100-1000 mixers Operating Instructions 29251615 AD
Action
Locate the pH/DO transmitter display on the I/O Cabinet. Press MENU (1).
2
Result: A menu is displayed on the transmitter screen.
Use the navigation keys to make selections in the menu:
6.4 Prepare and install the probes
6.4.1 Calibrate the pH probe
1
3
6 Preparation
159