D102585X012

Type 4000 Valve Positioners

Contents

Introduction

1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Scope of Manual 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Description 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Specifications 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installation

2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Positioner Mounting 3. . . . . . . . . . . . . . . . . . . . . . . . . .

Pressure Connections 4. . . . . . . . . . . . . . . . . . . . . . . .

Supply Connection 4. . . . . . . . . . . . . . . . . . . . . . . . . .

Instrument Connection 6. . . . . . . . . . . . . . . . . . . . . . .

Vent 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating Information

6. . . . . . . . . . . . . . . . . . .

Front Cover and Indicator Cover 6. . . . . . . . . . . . . . .

Cam Adjustment 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Indicator Adjustment 7. . . . . . . . . . . . . . . . . . . . . . . . . .

Calibration 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pre-calibration 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Zero and Span Adjustment 8. . . . . . . . . . . . . . . . . . .

Principle of Operation

8. . . . . . . . . . . . . . . . . . .

Maintenance

9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Troubleshooting 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Replacing the Pilot valve 9. . . . . . . . . . . . . . . . . . . . . .

Replacing the Diaphragm 10. . . . . . . . . . . . . . . . . . .

Replacing Gauges 10. . . . . . . . . . . . . . . . . . . . . . . . .

Removing the Positioner 10. . . . . . . . . . . . . . . . . . . .

Replacing the Positioner 10. . . . . . . . . . . . . . . . . . . .

Parts Ordering

11. . . . . . . . . . . . . . . . . . . . . . . . . . .

Parts List

11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Introduction

Scope of Manual

This instruction manual provides installation, operat-

ing, calibration, maintenance, and parts ordering in-

formation for the Type 4000 pneumatic valve

Figure 1. Type 4000 Positioner Installed on System 9000

Actuator

W7371 / IL

positioner. Refer to separate instruction manuals for

information on the actuator control valve and other

accessories.

Only personnel qualified through training or experience

should install, operate, or maintain these positioners. If

there are any questions concerning the instructions in

this manual, contact your Fisher Controls sales office

or sales representative before proceeding.

Instruction Manual

Form 5455

January 1999

Type 4000

Fisher 4000 - Page 20

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