40
YT-3400/3450 series
7.8.2
Characteristic Adjustment (CHAR)
The valve characteristic can be set on the field
’s
requirement. There are 3 types of characteristics
–
linear (LIN), equal percentage (EQ), and quick open (QO).
7.8.3
User Characteristics (USER SET)
In case positioner requires a specific characteristic, the valve characteristic curve can be
made by selecting up to 18 points of the curve.
⇨
<ENTER>
⇨
<DOWN>
⇨
<ENTER>
⇨
<UP>/<DOWN>
<ENTER>
⇨
<ESC>
3 times
⇨
<ENTER>
⇨
<DOWN>
2 times
⇨
<ENTER>
⇨
<UP>/<DOWN>
<ENTER>
⇨
<ENTER>
⇨
<UP>/<DOWN>
<ENTER>
⇨
<ENTER>
⇨
<ESC>
3 times
Repeat step if
necessary