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Fisher 3661 Electro-Pneumatic Positioner

Fisher™ 3661 electro-pneumatic single-acting positioners are used with various actuators on sliding-stem valves for throttling applications. These rugged positioners provide a valve position proportional to a pneumatic input or a standard millampere DC input signal received from a control device.

Fisher

Instruction manual Fisher 3660 and 3661 Positioners

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Taneli Luhanko
Inside Sales Engineer
Phone. 0207 416 202
Mob. 040 757 4208

Taneli.Luhanko@askalon.fi

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Area Classification	Intrinsically Safe, Non-incendive, Dust
Certifications	CSA, FM, ATEX, IECEx, CUTR, Peso, KGS, INMETRO, RCM
Communication Protocol	4-20mA Analog
Diagnostics	No
Input Signal	Electric
Max Outlet Pressure	90 psi
Mounting Type	Actuator Mounted
Operating Temperature	Standard Temperature
Position Control	Modulating
Safety Certification	NIL
Supply Media	Air

Positioner design provides accurate, fast-responding instruments able to withstand the vibrations of most plant environments. Low steady-state air consumption contributes to efficient operation.
Easily adjustable gain and damping adjustments fine tune the positioner stability to specific application requirements.
Positioner accepts a standard milliampere DC input signal from a control device. This positioner provides split range capabilities and adjustable zero and spans.
Most of the parts for 3661 positioners are interchangeable; requiring fewer spare parts to support these positioners.
The case and cover are designed to withstand mechanical vibration and rough handling.
Zero and span adjustments can be made with the cover in place.
To support diagnostic testing of valve/actuator/positioner packages with the FlowScanner™ valve diagnostic system, connectors, piping, and other hardware can be installed between the 3661 positioner and the actuator.

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Fisher 3661 Electro-Pneumatic Positioner

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