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LRR 1-52, LRR 1-53, URB 55 - Installation & Operating Manual -
850645-01
Configuring the conductivity controller
Continuous blowdown valve - Calibrating the feedback potentiometer for the valve position display
Even with a feedback potentiometer
connected to the controller, the valve
runtime still needs to be established
and entered precisely.
1.
Tap the parameter display.
The raw values then appear.
100 % (OPEN) / 0 % (CLOSED)
Calibrated valve positions.
The calibrated raw data is shown in
both fields.
Raw data
Indicates the current digital
valve position.
Performing calibration
2.
Press the Automatic button and
switch to manual mode.
3.
Enter “
0 %
”
as the manipulated variable (Yw).
4.
When the valve is in the
(CLOSED) end position
,
confirm the valve position.
5.
The raw data from the central
field is automatically
entered in the 0 % (CLOSED) field.
6.
Next, enter “
100 %
”
as the manipulated variable (Yw).
7.
When the valve is in the
(OPEN) end position
,
confirm the valve position.
8.
The raw data from the central
field is automatically entered in
the 100 % (OPEN) field.