72
Basic setting of the process controller
Type 8792, 8793 REV.2
For internal set-point value default (
SP-INPUT
→
internal),
the process set-point value is input directly
on the process level.
Example of a sensor calibration for
frequency
signal type:
Pulses
Liters
Flow-rate
0
100
10
K factor
(pulses/liter)
Scaling:
Process actual value:
100 pulses correspond to 10 liters
Process set-point value:
K factor 1.25 correspond to 8 liters
Figure 28:
Example of a sensor calibration for frequency signal type
Scale the process actual value in the menu as follows:
→
/ Select
PV-SCALE
. Selection in the main menu (MAIN).
→
Select
ENTER
. The submenu options for scaling of the process actual value are displayed.
You have scaled the process actual value.
PVmin
is set as follows:
→
/ Select
PVmin
.
→
Select
INPUT
. The input screen is opened.
First specify the physical unit which has a dark background.
→
Select
+
. Select physical unit.
→
Select
<-
decimal point. The decimal point has a dark background.
→
Select
+
. The last digit of the scaling value has a dark background.
→
Select
<-
scaling value. The last digit of the scaling value has a dark background.
→
/
+
Increase value and
<-
select decimal place.
Set scaling value (lower process actual value).
→
Select
OK
. Return to
PV-SCALE.
You have set the PVmin.
PVmax
is set as follows:
→
/ Select PVmax.
→
Select
INPUT
. The input screen is opened.
The last digit of the scaling value has a dark background.
→
/
+
Increase value and
<-
select decimal place.
Set scaling value (lower process actual value).
→
Select
OK
. Return to
PV-SCALE.
You have set the PVmax.
english
