ProMinent DULCOMETER - Control parameter [Type]

Value pH
6.00 7.00 8.00
Setpoint
Control variable
- 100 0 +100
Negative deviation
Positive control variable
Time
Time
A1472
Fig. 78: Control type 1-way PID, pH-increasing direction
Adjustable parameters in the [Control]
menu
You have to make the following selection
in the Control menu:
10.1 Control parameter [Type]
You set the controller type under the
menu option
[Type] . You can set the
[Type] as [1-way] or [2-way] .
P, PI, PID controllers are continuous con‐
trollers. The control variables can take any
value in the control range from -100 % …
+100 %.
P controller:
This controller type is used with an inte‐
grating control path (e.g.
[Batch Neutralisation] ). If the control devi‐
ation becomes small then the control
(actuation) of the actuator becomes
Setting the [Control]
108