Unlike competitive positioners that use spool valves, the 3590 uses a precision flapper-nozzle mechanism. The manual stresses that the nozzle gap is measured in thousandths of an inch —adjusting the zero screw directly alters this gap, which directly impacts air consumption and stability.

Increase the input signal to its maximum value (e.g., 20 mA).

3 to 15 psig (0.2 to 1.0 bar), 6 to 30 psig (0.4 to 2.0 bar), or split-range options. Output Signal: Up to full supply pressure (single-acting).

Always ensure the control valve is bypassed to prevent disruption of the process.

Drain moisture from the air filter regulator reservoir.

Connect the regulated air supply line to the "SUPPLY" port. Install a Fisher 67CFR filter regulator directly upstream of the positioner.

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  1. Fisher 3590 Valve Positioner Manual Fixed -

    Unlike competitive positioners that use spool valves, the 3590 uses a precision flapper-nozzle mechanism. The manual stresses that the nozzle gap is measured in thousandths of an inch —adjusting the zero screw directly alters this gap, which directly impacts air consumption and stability.

    Increase the input signal to its maximum value (e.g., 20 mA). fisher 3590 valve positioner manual

    3 to 15 psig (0.2 to 1.0 bar), 6 to 30 psig (0.4 to 2.0 bar), or split-range options. Output Signal: Up to full supply pressure (single-acting). Unlike competitive positioners that use spool valves, the

    Always ensure the control valve is bypassed to prevent disruption of the process. 3 to 15 psig (0

    Drain moisture from the air filter regulator reservoir.

    Connect the regulated air supply line to the "SUPPLY" port. Install a Fisher 67CFR filter regulator directly upstream of the positioner.

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