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Fisher 4070 Instruction Manual

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Instruction Manual
Form 5452
January 1999
Type 4060 and 4070 Valve Positioners
Contents
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Types 4060 & 4070
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W7099-1 / IL
Figure 1. Type 4070 Electro-Pneumatic Valve Positioner
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Introduction

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Scope of Manual

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This instruction manual provides installation, operat-
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ing, calibration, maintenance, and parts ordering in-
formation for the Type 4060 pneumatic positioner and
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the Type 4070 electro-pneumatic positioner. Refer to

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Summary of Contents for Fisher 4070

  • Page 1: Table Of Contents

    ......W7099-1 / IL Figure 1. Type 4070 Electro-Pneumatic Valve Positioner Principle of Operation ....

  • Page 2: Description

    Type 4060 0.31 0.69 1.14 1.58 2.03 nal. The Type 4060 accepts a pneumatic input signal Consumption and the Type 4070 accepts a 4 to 20 milliampere dc Type 4070 0.35 0.77 1.25 1.74 2.22 input signal. Air Delivery 11.1...

  • Page 3: Installation

    Type 4060 & 4070 Installation Typically, the positioner is ordered with the actuator. If so, the factory mounts and calibrates the valve posi- tioner and connects the positioner output to the actua- tor. If the positioner is ordered separately from the ac- tuator, perform the mounting procedure.

  • Page 4: Pressure Connections

    Type 4060 & 4070 BOLTS MOUNTING BRACKET BOLT P/P POSITIONER LEVER ARM ASSY FEEDBACK BRACKET INSTRUMENT GAUGE PORT 1/4 NPT INSTRUMENT PORT SUPPLY GAUGE PORT 1/4 NPT C1 PORT CAP SCREWS C1 GAUGE PORT HEX NUT 1/4 NPT SUPPLY PORT...

  • Page 5: Output Connections

    The Type 4070 electro-pneumatic positioner requires a 4 to 20 milliampere dc current input signal from the instrument air quality standards de- control device. For connections to the Type 4070, re- scribe acceptable dirt, oil, and moisture fer to the electrical connections section.

  • Page 6: Electrical Connections For Type 4070 Electro-Pneumatic Positioners

    Check the vent period- ically to be certain it is not plugged. Operating Information Electrical Connections for Type 4070 Electro-Pneumatic Positioners Front Cover and Indicator Cover The positioner front cover is shown in figure 8. It is...

  • Page 7: Cam Adjustment

    Type 4060 & 4070 FRONT COVER INDICATOR O-RING COVER O-RING FRONT COVER INDICATOR IDENTIFICATION NOTCH COVER COVER FRONT COVER SHOWN WITH O-RING LOOPED OVER NOTCHES TO PERMIT DRAINING B2644 / IL Figure 8. Front Cover and Indicator Cover 1/16-INC H FOLLOWER (1–2 mm)

  • Page 8: Calibration

    Type 4060 & 4070 Table 4. Cam Position Information LOCKING SCREW SPRING GUIDE Cam Orientation for Actuator Failure Mode Actuator Travel Actuator Travel Lobe Lobe Fail Open Fail Close greater than 0.75 inch (19.1 mm) less than or equal to 0.75 inch (19.1 mm)

  • Page 9: Damper Adjustment

    Type 4060 & 4070 DAMPER ADJUSTMENTS A7230 / IL Figure 11. Damper Adjustment A7231 / IL Figure 12. Principle of Operation 10. Replace the positioner front cover. pilot valve is in a neutral position—the complete unit is 11. If you used the zero adjustment opening, remem- in a balanced position.

  • Page 10: Troubleshooting

    Type 4060 & 4070 Use bypass valves or completely shut off the process to isolate the valve BALANCE ARM from process pressure. Relieve process SPOOL SPOOL GROVE pressure on both sides of the valve. Drain the process media from both sides of the valve.

  • Page 11: Replacing The Diaphragm

    Make sure that the leaf spring on the balance arm is properly fitted in the spool groove. The I/P unit on the Type 4070 positioner is equipped 4. Check again to insure smooth operation of the as- with a built in secondary filter located on the side of sembly.

  • Page 12: Replacing The Positioner

    11-character part number from the following parts list when ordering replacement parts. 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.

This manual is also suitable for:

4060

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