Jordan Valve Mark 17X Series Flameproof Smart Positioner - Manual (Page 22)

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User Characteristics (USER SET):
Should the positioner require a specific characteristic, the valve characteristic curve can be made by selecting up to
16 points of the curve.
Tight Shut Open (TSHUT OP):
Tight Shut Open allows the valve to open completely as the input signal reaches 20mA.
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