Emerson Fisher 3570 Instruction Manual
www.Fisher.com
Fisherr 3570 Pneumatic Valve Positioners
Contents
Introduction
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Scope of Manual
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Description
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Valve Positioner Type Numbers
. . . . . . . . . . . . .
Specifications
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Educational Services
. . . . . . . . . . . . . . . . . . . . . . . . .
Installation, Mounting, and Connections
. . . . . . . . . .
Installation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnostic Test Connections (Optional)
. . . . .
Connections
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Piping Sizes
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vent
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Supply Pressure Connections
. . . . . . . . . . . . . .
Cylinder Connections
. . . . . . . . . . . . . . . . . . . .
Instrument Connection
. . . . . . . . . . . . . . . . . .
Operating Information
. . . . . . . . . . . . . . . . . . . . . . . .
Initial Adjustments
. . . . . . . . . . . . . . . . . . . . . . . . . .
Signal Range Codes
. . . . . . . . . . . . . . . . . . . . . . . . .
Frequency Response
. . . . . . . . . . . . . . . . . . . . . . . .
Adjustment Procedures
. . . . . . . . . . . . . . . . . . . . . .
Changing Positioner Action
. . . . . . . . . . . . . . . . . .
Split Range Operation
. . . . . . . . . . . . . . . . . . . . . . .
Initial Range Spring Extension Procedure
for 3570P and 3570PC Positioners
. . . . . . . . . .
Principle of Operation
. . . . . . . . . . . . . . . . . . . . . . . .
3570, 3570C, 3570P, 3570PC, and
3571 Valve Positioners
. . . . . . . . . . . . . . . . . . . .
3572 and 3576 Valve Positioners
. . . . . . . . . . . . . .
3573 and 3577 Valve Positioners
. . . . . . . . . . . . . .
Relay Operation
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Converting a 3570 Valve Positioner to a
3570C Valve Positioner
. . . . . . . . . . . . . . . . . . . .
Range Spring
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disassembly
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Assembly
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 1. Fisher 3570 Positioner Mounted on
470 Actuator
W5566*/IL
Bias Spring
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disassembly
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Assembly
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Ordering
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Kits
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Positioner Repair Kits
. . . . . . . . . . . . . . . . . . . . . . . .
Diagnostic Test Connection Kits
. . . . . . . . . . . . . . .
Parts List
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Positioner Common Parts
. . . . . . . . . . . . . . . . . . . .
Introduction
Scope of Manual
This manual provides installation, operation, adjustment, maintenance, and parts ordering information for Fisher
3570 pneumatic valve positioners. The various product types within this series are described later in this manual. Refer
Instruction Manual
D200137X012
3570 Positioners
September 2011
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