The FUZZY controller is informed of the system characteristic through the adjustment of
the delay time.
Value range: 0 sec to 60 sec
The set point difference (XSH) function is used to specify switching point 2. The stated
percentage refers to the nominal value.
Value range: 0 % to 20 %
Through selecting the module selection function one returns to the controller parameter
module selection.
Page 2 displays additional parameters on a second page of settings.
Page 2 contains the following additional setting options for the controller's method of
operating.
The follow settings are valid for the adaptive 3-point FUZZY controllers:
pH controller
parameters page 1
(adaptive 3-point
FUZZY)
The set point (W) function is used to specify the nominal value within the measuring
range.
Value range (depending on the set measuring range):
Measuring range
0..14 pH
2..12 pH
3..8 pH
The set point difference (XSH) function is used to specify switching point 2. The stated
percentage refers to the nominal value.
Value range: 0 % to 20 %
Through selecting the module selection function one returns to the controller parameter
module selection.
Page 2 displays additional parameters on a second page of settings.
pH-controller
parameters page 2
The sense function is used to specify the control direction of the controller. This setting
is not used for 3-point controllers.
Value range: positive / negative
In the case of positive direction of control, the corresponding controller contact
activates as soon as the value drops below the set point. The negative direction of
control operates analogous.
The controller module function can be used specifically to turn the controller on or off.
Value range: On / Off
417101804_Anhang03_pH.doc
pH Measuring Module
Value range
0 pH to 14 pH
2 pH to 12 pH
3 pH to 8 pH
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Rev.: 07-07/10