GE Xcellerex XDM Series Operating Instructions Manual page 106

4 User interface
4.4 Detail screens
4.4.4 pH screens
Part
5
6
7
8
1
Factory default values for the parameters on the pH PID Settings screen are suitable
for most applications.
106
Button/Display
Deadband
Auto/Manual
P-Term (proportional)
I-Term (integral)
D-Term (derivative)
SC_201 Acid PID CV
SC_202 Base PID CV
Only shown in Manual mode.
Xcellerex XDM 50-1000, XDUO 100-1000 mixers Operating Instructions 29251615 AD
Function
User-defined deadband value.
When the pH value (process variable, PV) is
within the deadband range from SP, the
pumps do not operate.
Toggle button to select the control mode.
User-defined PID tuning parameters.
Pump speed displays (controlled variable, CV)
for the acid pump and the base pump. Shown
in % of total pump speed range.