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Instruction Manual
Form 5455
January 1999
Type 4000 Valve Positioners
Contents
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Introduction
Scope of Manual
This instruction manual provides installation, operat-
ing, calibration, maintenance, and parts ordering in-
formation for the Type 4000 pneumatic valve
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W7371 / IL
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Figure 1. Type 4000 Positioner Installed on System 9000
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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.
Type 4000
Actuator
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Summary of Contents for Fisher 4000
-
Page 1: Table Of Contents
....Replacing the Positioner ....Figure 1. Type 4000 Positioner Installed on System 9000 Parts Ordering Actuator . -
Page 2: Description
Avoid personal injury from sudden re- mounts on the actuator and provides the desired valve lease of process pressure. Before plug position for a specific input signal. The Type 4000 mounting the positioner on a valve in accepts a pneumatic input signal. -
Page 3: Positioner Mounting
(KEY 1C) MOUNTING SCREWS W7369 / IL Figure 2. Type 4000 Positioner Feedback Lever Figure 3. Assembling the Type 4000 Positioner to the Arm Assembly (Key 1B) Adapter Housing Drain the process media from both sides of the valve. Note... -
Page 4: Pressure Connections
ADAPTER HOUSING (KEY 1C) Valve positioners are capable of provid- W7372 / IL Figure 5. Mounting the Type 4000 Positioner on the Actuator ing full supply pressure to connected equipment. To avoid personal injury and equipment damage, make sure the sup-... - Page 5 S7.3-1975 (R1981). The supply pressure should of the problems these influences can not exceed the following limits: have on pneumatic equipment, Fisher For the actuator and positioner, do not exceed Controls has no technical basis to rec- the maximum pressure rating of 100 psi (6.8 bar).
-
Page 6: Instrument Connection
Type 4000 FRONT COVER O-RING FRONT COVER NOTCH IDENTIFICATION INDICATOR INDICATOR COVER COVER FRONT COVER SHOWN WITH O-RING LOOPED COVER O-RING A7196 / IL OVER NOTCHES TO PERMIT DRAINING Figure 8. Front Cover and Indicator Cover Instrument Connection There is no pipe fitting for remote venting. The posi- tioner exhaust is under the actuator cover. -
Page 7: Cam Adjustment
Type 4000 Table 3. Cam Position and Identification Cover Selection CAM LOCKING NUT Information Cam Orientation for Identification SCREW Actuator Failure Mode Actuator Travel Actuator Travel Cover Cover Lobe Lobe Markings Fail Open Fail Close greater than P5FV60R 0.75 inch (19.1 mm) -
Page 8: Zero And Span Adjustment
Type 4000 LOCKING SCREW SPRING GUIDE SPAN ADJUSTMENT ZERO ADJUSTMENT LOWER ARM COVER A7199 / IL Figure 11. Principle of Operation If the actuator travel recorded in step 5 is short of the desired travel at 100% input signal, rotate the span adjustment down to increase span. -
Page 9: Maintenance
Type 4000 and connected to the actuator power module through Troubleshooting a feedback linkage, thus providing feedback from the Signal change has no effect on the actuator posi- actuator/valve. When these two forces are equal, the tion. balance arm and the spool in the pilot valve is in a neutral position—the complete unit is in a balanced... -
Page 10: Replacing The Diaphragm
Type 4000 DIAPHRAGM COVER BALANCE ARM SCREWS SPOOL SPOOL GROVE PILOT VALVE ASSEMBLY SCREW LEAF SPRING WASHERS A7200 / IL SCREW Figure 12. Pilot Valve Assembly DIAPHRAGM 5. Check the O-rings, then secure and install the pilot valve assembly to the positioner housing and secure it with the screw. -
Page 11: Parts Ordering
(3 req’d) 1N908899012 refer to the serial number found on the Fisher serial – – – Pilot Valve 18B2838X012 tag attached to the positioner body. Also, specify the Cap Screw (w/o switch, 2 req’d;... - Page 12 Type 4000 Fisher, Fisher-Rosemount, and Managing The Process Better are marks owned by Fisher Controls International, Inc. or Fisher-Rosemount Systems, Inc. All other marks are the property of their respective owners. Fisher Controls International, Inc. 1998, 1999; All Rights Reserved...
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