Smart valve positioner
SP740 Series
8.8.3 User Defining Flow Characterics Curve mode (USER SET)
Users can make flow charerics cusrve randomly and use it.
Total 10 point can be defined and can be used.
In initail time PO (4mA ) is valve stroke (0% ), PI (5.6mA ) is 6.00 % … P10( 20mA ) is 100% as
basic setting mode . . They can be modified into other % value . 8 point can be chnaged totally and
partially . If some of parts should be changed and others are remain , it can be escaped in < ESC >
during setting .
<after 1 sec>
8.8.4 Tight Shut Open (TSHT OP)
Tight Shut Open indicates the setting position as %.
Tight Shut Open value is set as standard 100% .
If setting % value input ovver setting value , the driving position return into 100% immediatley .
i.e.) if 95% value is set , every command higher than 95% will move into 100% position.
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