Instruction Manual Form 5455 January 1999
Type 4000
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
Parts Ordering . . . . . . . . . . . . . . . . . . . . . . . . . . .
11
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11
Introduction Scope of Manual This instruction manual provides installation, operating, calibration, maintenance, and parts ordering information for the Type 4000 pneumatic valve
W7371 / IL
Figure 1. Type 4000 Positioner Installed on System 9000 Actuator
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. D102585X012
.............................. 9 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Replacing the Pilot valve . . . . . . . . . . . . . . . . . . . . . . 9 Replacing the Diaphragm . . . . . . . . . . . . . . . . . . . 10 Replacing Gauges . . . . . . . . . . . . . . . . . . . . . . . . . 10 Removing the Positioner . . . . . . . . . . . . . . . . . . . . 10 Replacing the Positioner . . . . . . . . . . . . . . . . . . . . 10