Introduction; Scope Of Manual; Description; Specifications - Fisher 3660 Instruction Manual

3660 and 3661 Positioners
September 2015

Introduction

Scope of Manual

This instruction manual includes installation, operation, calibration, maintenance, and parts ordering information for
Fisher 3660 and 3661 positioners. Refer to separate instruction manuals for information on the actuator and control
valve.
Do not install, operate, or maintain a 3660 or 3661 positioner without being fully trained and qualified in valve,
actuator and accessory installation, operation and maintenance. To avoid personal injury or property damage it is
important to carefully read, understand, and follow all of the contents of this manual, including all safety cautions and
warnings. If you have any questions about these instructions, contact your
before proceeding.

Description

3660 pneumatic and 3661 electro‐pneumatic, single‐acting positioners are used with Fisher 657, 667, 1250, 1250R,
3024S, and GX actuators. These positioners can also be mounted on Baumann actuators. Figure 1 shows a 3660
positioner mounted on a Baumann actuator.
The positioner mounts on the actuator and provides the desired plug position for a specific input signal. The 3660
positioner accepts a pneumatic signal and the 3661 accepts a 4 to 20 milliampere DC input signal.

Specifications

Specifications for the 3660 and 3661 positioners are shown in table 1.

Educational Services

For information on available courses for 3660 and 3661 positioners, as well as a variety of other products, contact:
Emerson Process Management
Educational Services, Registration
Phone: +1-641-754-3771 or +1-800-338-8158
e‐mail: education@emerson.com
http://www.emersonprocess.com/education
2
Instruction Manual
Emerson Process Management sales office
D101402X012