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Summary of Contents for Dwyer Instruments W.E. Anderson 150N Series
- Page 1 Bulletin F-56 Series 150N Pneumatic Positioner Installation and Operating Instructions W.E. ANDERSON DIV., DWYER INSTRUMENTS, INC. Phone: 219/879-8000 www.dwyer-inst.com P.O. BOX 358 • MICHIGAN CITY, INDIANA 46361 U.S.A. Fax: 219/872-9057 e-mail: info@dwyer-inst.com...
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Page 2: Table Of Contents
PAGE 2 BULLETIN F-56 TABLE OF CONTENTS SECTION TITLE PAGE INTRODUCTION....................3 MODEL DESIGNATION...................3 SPECIFICATIONS....................4 INSTALLATION.....................5 SHIPPING AND STORAGE..................5 MECHANICAL INSTALLATION................5 2.2.1 PROCEDURE....................6 PNEUMATIC CONNECTIONS.................9 2.3.1 PIPING......................10 2.3.2 INSTRUMENT AIR REQUIREMENTS............10 CAM INSTALLATION....................11 2.4.1 CAM IDENTIFICATION................11 2.4.2 EQUIPMENT NEEDED................11 2.4.3 PROCEDURE....................11 CALIBRATION....................16 EQUIPMENT NEEDED..................16 PROCEDURE.......................16... -
Page 3: Introduction
BULLETIN F-56 PAGE 3 1.0 INTRODUCTION The Model 150P Valve Positioner is a cam characterized, double-acting, pneumatic valve positioner that accepts a 3-15 or 3-27 psig input signal and converts it to a pneumatic output to position a con- trol valve actuator. The Positioner can be used with either rectilinear or rotary, single or double acting actuators. -
Page 4: Specifications
PAGE 4 BULLETIN F-56 1.2 SPECIFICATIONS Connections: 1/8˝ NPT Input: 3-15 PSIG (.21-1.1 KG/CM ), 3-27 PSIG (.21-1.9 KG/CM Supply: 30 PSIG (2.1 KG/CM ) minimum, 150 PSIG (10.5 KG/CM ) maximum Supply Pressure Change Effect: output pressure changes less than 0.3% of span for a 5 PSIG (.35 KG/CM change Air Consumption: 0.7 SCFM (.33 L/S) at 60 PSIG (4.22 KG/CM ) supply... -
Page 5: Installation
BULLETIN F-56 PAGE 3 2.0 INSTALLATION This section provides information pertaining to installation of a Series 150N Valve Positioner. This entire section should be reviewed before proceeding with the installation. Positioner installation is dependent upon the type of valve actuator and its characteristics, and the effect of the valve on the process. -
Page 6: Procedure
PAGE 6 BULLETIN F-56 2.2.1 Procedure 1. Loosen cover screws and rotate cover (and gasket) to provide access. See Page 1. 2. If present, remove extension spring from spring anchor (spring may be disconnected in a new Positioner shipped from the factory). Then remove screw, washer, and anchor. See Figure 2-1. 3. -
Page 7: Cam And Associated Hardware
BULLETIN F-56 PAGE 7 FIGURE 2-1 Cam and Associated Hardware... -
Page 8: Typical Positioner Mounting And Feedback Pin Connection
PAGE 8 BULLETIN F-56 FIGURE 2-2 Typical Positioner Mounting and Feedback Pin Connection... -
Page 9: Pneumatic Connections
BULLETIN F-56 PAGE 9 2.3 PNEUMATIC CONNECTIONS Pneumatic connections are shown on page 1 and listed below: IN - Input (or instrument) connection V1- No. 1 valve connection V2 - No. 2 valve connection S - Supply connection Valve connections are used either independently or together to load the valve actuator. A user supplied 1/8˝... -
Page 10: Piping
PAGE 10 BULLETIN F-56 2.3.1 Piping All connections are 1/8˝ NPT. User supplied materials: • Scale free piping at least 3/16˝ OD • 1/8˝ NPT pipe fitting is needed for each connection used; the maximum torque to be applied when tightening a fitting is 12 foot-pounds •... -
Page 11: Cam Installation
BULLETIN F-56 PAGE 11 Dew Point - the dew point, at line pressure, should be least 10°C (18°F) below the minimum tempera- ture to which any part of the instrument air system is exposed at any season of the year. Under no cir- cumstances should the dew point, at line pressure, exceed 2°C (35.6°F). - Page 12 PAGE 12 BULLETIN F-56 3. For access to cam and loosening of cam mechanism, perform the following steps. 1) Rotate access cover (and gasket). Refer to Page 1. 2) If present, remove extension spring from spring anchor; then remove screw, washer, and anchor.
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Page 13: Standard Cam Characteristics
BULLETIN F-56 PAGE 13 FIGURE 2-3 Standard Cam Characteristics... -
Page 14: Cam Installation, A Side Example
PAGE 14 BULLETIN F-56 FIGURE 2-4 Cam Installation, A Side Example... -
Page 15: Cam Installation, B Side Example
BULLETIN F-56 PAGE 15 FIGURE 2-5 Cam Installation, B Side Example... -
Page 16: Calibration
PAGE 16 BULLETIN F-56 3.0 CALIBRATION Calibrate a Positioner before placing it in service and after repair. Figure 3-1 locates the calibration adjustments. This section accommodates two styles of calibration adjustments: concentric and separate. The con- centric style is the most common and appears on current Positioners. To determine the style of calibration adjustment in the Positioner to be calibrated, read the following statements while referring to Figure 3-1. -
Page 17: Calibration
BULLETIN F-56 PAGE 17 FIGURE 3-1 Calibration... - Page 18 PAGE 18 BULLETIN F-56 2) CONCENTRIC - Adjust Range Spring active coils by loosening Range Spring Locknut and turning Range Spring. Four to four and one-half active coils are desired for a standard input span. SEPARATE - Adjust Range Spring active coils by loosening Range Spring Lockscrew and turning Range Spring.
- Page 19 BULLETIN F-56 PAGE 19 SEPARATE - Turn Coarse Zero and Span Nut and Fine Zero Thumbwheel simultaneously in the same direction until valve is in desired position. Continue to turn Coarse Zero and Span Nut until Coarse Zero Lockscrew and Range Spring Locknut are accessible. 4) CONCENTRIC - Tighten Coarse Zero Lockscrew, then tighten Range Spring Locknut.
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Page 20: Principle Of Operation
PAGE 20 BULLETIN F-56 4.0 PRINCIPLE OF OPERATION The following describes a direct-acting Positioner operating a valve with a double-acting actuator in response to an increased input signal. Refer to Figure 4-1. The input signal, representing the desired valve position, is applied between the two diaphragms of the input diaphragm assembly. -
Page 21: Schematic
BULLETIN F-56 PAGE 21 FIGURE 4-1 Schematic... -
Page 22: Maintenance
4. Insert a screen until it bottoms using an object, such as the eraser end of a pencil, that will not cause damage. W.E. ANDERSON DIV., DWYER INSTRUMENTS, INC. Phone: 219/879-8000 www.dwyer-inst.com Fax: 219/872-9057 e-mail: info@dwyer-inst.com...
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