Dwyer 285 - Manual (Page 8)

Valve Mode
This mode adjusts the various characteristics.
Action Type (ACT)
It can be set to Direct Action (DA) or Reverse Action (RA).
Adjustment of Acting Type (ACT)
1. Press and hold at RUN mode for 6 seconds and AUTO CAL
message appears.
2. Scroll with until VALVE mode is displayed.
3. Push and ACT RA (in case of Reverse Acting) is displayed.
4. Push and *ACT RA is displayed.
5. Adjust to *ACT DA by pushing or and save it with .
+ACT DA message appears.
6. Push to exit ACT RA mode.
Characteristics (CHAR)
Set Characteristics. There are three types of valve characteristics: Linear (LIN),
EQ% (EQ), and Quick Open (QO). The following is the example of the three
characteristic curves.
Adjustment of Characteristics (CHAR)
1. To change linear characteristics, scroll with at VALVE menu and select
CHAR LIN (in case of linear characteristics).
2. Push . *HAR LIN mode is displayed and charactertistics can be set to
LIN, EQ, QO or USR.
3. Adjust characteristics (ex: EQ) by pushing or and save it with
. + HAR EQ is displayed.
4. Push to exit CHAR LIN mode.
User Characteristics (USER SET)
When a specific characteristic is needed but not included in the above
characteristics, the user can make a specific characteristic curve by choosing 16
points voluntarily.
Adjustment of User Characteristics (USER SET)
1. Push at VALVE mode and scroll with to select USER SET.
2. Push . *PO SET mode is displayed. In this mode, users can adjust the
first point of characteristic in 16 points. the number on the LCD is the valve stroke
percentage set to P0.
3. Adjust the valve stroke percentage using or .
4. Save with . While P0 value is being saved, *P1 SET mode is
displayed.
5. *P1 SET mode is used to adjust the second point characteristic in 16 points.
Adjustment method is the same as P0* SET mode.
6. Continue steps from P2 to P15.
7. After adjusting valve stroke percentage at *P15 SET mode, save with .
8. +SER SET is displayed. All sixteen points of valve stroke percentage are set.
9. Push to exit USER SET mode.
100%
Strok
0
4 20
mA
Quick Open
Linear
EQ%
6 seconds 3 times
/
then 3 times
COMPLETED
6 seconds 3 times
/
then
/
then
6 seconds