Instruction Manual
D200149X012
3610J and 3620J Positioners
September 2017
2
Zero and Span Adjustments
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Changing Positioner Action
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Changing to Direct Action
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Changing to Reverse Action
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Split Range Operation
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Characterized Cams for 3610J, 3610JP,
3620J, and 3620JP Positioners
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Principle of Operation
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Maintenance
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Positioner Disassembly
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Removing the Positioner from the Actuator
.
Disassembling the Bypass Valve
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Disassembling the Gauge Block
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Disassembling the 3622
Electro‐Pneumatic Converter
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Disassembling the Feedback
Lever Assembly
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Disassembling the Reversing
Plate and Gasket
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Disassembling the Relay
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Disassembling the Summing Beam
Assembly
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Disassembling the Nozzle Assembly
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Disassembling the Input Module
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Positioner Reassembly
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Assembling the Input Module
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Assembling the Nozzle Assembly
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Assembling the Summing Beam Assembly
. .
Assembling the Relay
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Assembling the Reversing Plate
and Gasket
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Assembling the Gauge Block
. . . . . . . . . . . . . .
Assembling the 3622
Electro‐Pneumatic Converter
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Assembling the Feedback Lever Assembly
. . .
Assembling the Bypass Valve Assembly
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Changing Positioner Types
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Parts Ordering
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Parts Kits
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Parts List
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Positioner Common Parts
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3622 Electro‐Pneumatic Converter
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Diagnostic Connections
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Loop Schematics
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Introduction
Scope of Manual
This instruction manual includes installation, operation, calibration, maintenance, and parts ordering information for
Fisher 3610J and 3620J positioners. (i.e. 3610J, 3610JP, 3611JP, 3620J, 3620JP, and 3621JP). This manual also provides
field installation information for the Fisher 3622 electro‐pneumatic converter. Refer to separate instruction manuals
for information on the actuator and control valve. Contact your
or Local Business Partner if
assistance is needed in obtaining actuator or control valve instruction manuals.
Do not install, operate or maintain a 3610J or 3620J 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 Emerson sales office or Local Business
Partner before proceeding.
Description
3610J or 3610JP pneumatic positioners and 3620J or 3620JP electro‐pneumatic positioners are used with diaphragm
rotary actuators and piston rotary actuators as shown in figure 1. 3611JP and 3621JP positioners are used with Fisher
585, 585R, 585C, or 585CR sliding stem actuators as shown in figure 2.
The positioner mounts integrally to the actuator housing and provides a valve ball, disk, or plug position for a specific
input signal. The positioner accepts either a pneumatic or milliampere input signal. Refer to the Type Number
Description for a detailed explanation of type numbers.