Smart Positioner
SP740 Series
8.8 Valve Mode (VALVE)
VALVE mode is mode which can be set various function on control valve's operation .
8.8.1 Valve's operation direction setting mode (ACT DA / RA)
If Auto Calibration executes , valve's operation direction set into direct action ( DA ) automatically.
But when users want to modify Direct Action ( DA ) and reverse action ( RA )
it can be converted when using this function.
※
This works should be when executing air block or in 50% position.
Actuator shall be operated into reverse direction .
8.8.2 Valve Flow Characteriization Curve mode (CHAR LN)
<UP>/<DOWN>
<ESC>
<ENTER>
→
→
<ENTER>
<ENTER>
→
→
<ENTER 5
secs+UP 4
times>
→
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8.8.2 Valve Flow Characteriization Curve mode (CHAR LN)
Valve's flow charerics curve mode can make modifification.
Base is Liner ( LN ) , it can be changed to user setting (US)
Quick Open ( QP ) or Equal Percentage ( EQ ) .
※
The above procedure indicate a change from LINEAR to EQUAL PERCENTAGE, for instance.
<ESC>
→
<UP>/<DOWN>
→
→
<ENTER>
→
<ENTER>
<ENTER>
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