Range Spring, Bias Spring, and Spring Retainer/ Spacer Selection for Fisher 3570 Pneumatic Valve Positioners

Transcription

1 Instruction Manual Supplement D00X0 50 Positioners July 0 Range Spring, Bias Spring, and Spring Retainer/ Spacer Selection for Fisher 50 Pneumatic Valve Positioners Normally, no adjustments to the 50 positioner are necessary upon initial installation. The positioner is set at the factory for the travel, input signal range, and action specified in the order. Adjustment is necessary when operating conditions are changed, when the unit has been dismantled and reassembled, or when the control valve travel does not correspond to the desired input signal range. If the operating conditions have changed a new range spring, bias spring, and spring retainer/spacer may be required. Refer to the signal range code descriptions below and table,,, and. Once the appropriate range spring, bias spring, and spring retainer/spacer are obtained refer to the Maintenance and Adjustment procedures found in the 50 instruction manual (D00X0) available from your Emerson sales office or Local Business Partner or at Fisher.com. Refer to the instruction manual for all other information regarding 50 positioners. Signal Range Codes The range spring and the bias spring are matched to a specific input signal range and length of travel. Also, the spring retainer length is matched to the application on the 50, 50C, 5, and 5 positioners. Refer to figure for location of parts. The signal range codes in table are based on the following applications: Codes for valve travels up to and including 50 mm ( inches) are used for actuators that have a 50 mm ( inch) maximum travel. If the actuator maximum travel is greater than 50 mm ( inches), an additional retainer spacer (key 5, see figure ) is required. Refer to the parts list for the additional spring retainer spacer (key 5) part number. Codes for valve travels greater than 50 mm ( inches), up to and including 05 mm ( / inches), are used for actuators that have a 05 mm ( / inch) maximum travel, except the 0 or 0 5 Size 0 actuators which have a mm ( / inch) maximum travel. If the actuator maximum travel is greater than 05 mm ( / inches), an additional retainer spacer are required. Refer to the parts list for the additional spring retainer spacer (key 5) part numbers. Codes for valve travels greater than 05 mm ( / inches), up to and including 06 mm ( / inches), are for actuators that have a 06 mm ( / inch) maximum travel. If the valve travel is 05 mm ( / inches) or less, two additional spring retainer spacers are required. Refer to the parts list for the additional spring retainer spacer (key 5) part numbers. If the input signal range and travel do not match any of the selections in table, consult your Emerson sales office or Local Business Partner for information. To change the springs, refer to the range and bias spring procedures in the Maintenance section of the 50 instruction manual (D00X0). From table, select the signal range that matches your application. Find the travel length for the application under the signal range selected, then use the code (from the direct or reverse column) that matches the direct or reverse operation of the positioner.

2 50 Positioners July 0 Instruction Manual Supplement D00X0 The first number in the code is used to identify the range spring, the letter in the code is used to identify the bias spring, and the second number (after the letter) is used to identify the spring retainer. For example, from table, for a signal range of 0 to.0 bar (0 to 5 psig), an actuator travel of. mm (9/6 inch), and direct action, the signal range code from table is 6G. The 6 indicates the range spring. The G indicates the bias spring. The indicates the spring retainer. Note It is necessary to add the bias spring seat (key ) to a unit when changing from an extension type spring (key 9) to a compression type spring (key ). When planning to change the bias spring in an existing unit, inspect the unit first to determine if the current bias spring is an extension type spring (key 9) or a compression type spring (key ). To change from an extension type spring to a compression type spring, it is necessary to add the bias spring seat (key ). Refer to the appropriate procedures in the Maintenance section found in the 50 instruction manual (D00X0). In some cases, it is necessary to add an additional spring retainer spacer or change from the standard bellows to the optional high pressure bellows. Table footnotes indicate the use of an additional spring retainer spacer or high pressure bellows. Use the code from table while referring to tables,, and to determine the part numbers for the range spring, bias spring, and spring retainer. Unless otherwise specified, use the standard bellows. Also, no spring retainer spacer is required unless the spacer is specified in the footnotes of table.

3 Instruction Manual Supplement D00X0 50 Positioners July 0 Table. Fisher 50 Signal Range Codes () 0 to.0 bar (0 to 5 psig) 0. to 0.6 bar ( to 9 psig) 0. to.0 bar ( to 5 psig) 0. to.0 bar ( to 5 psig) Travel Code Travel Code Travel Code Travel Code mm Inches Direct Reverse mm Inches Direct Reverse mm Inches Direct Reverse mm Inches Direct Reverse /6 /6 / /6 / /6 / 9/6 / / / 5 6G G A G 5A 5C A G 9A 9A 9G B 0 to.0 bar (0 to 0 psig) / 5/6 / / () / () / () / 0D 0D A A5 A D G5 G G0 C A G G 6D G C B 5D 5C C B5 B A5 A5 9B 9B 9B D 0D 0D D D5 D D D5 D D0 C D D C 0. to 0.6 bar ( to 9 psig) /6 / / / /6 / / / / () 5/6 / G0 G G G 5G 5A 5G 5G 5A5 A5 A0 A B B B 9A 9A 9A 9A 5A 5A 5A5 5A 5A / / / / /6 / () 5 () 6 6 / / 5G G G G G G G 5A A A A A A A A A A A A A A A A 0. to.0 bar ( to 5 psig) / / (6) 5/ / / / / / 0.5 /6 / /6 / 5/6 /6 / 5/6 / /6 / 9/6 / /6 / H 0D 0D 0B 6A 6A 6A 6A G 5G G G G A5 G G G G0 G0 G G G G G H 0D 0H 0H 6C 6C 6D 6D C 5C B B C B5 5C5 B5 B5 B B B C0 B0 B B C B B C B B Continued- / () / () G G /6 / 5/6 () / / / /6 / / 5/6.09 / / / / / / / / /6 5/6 (6) / / () / () / (6).6 () () / () 5 (5) 5 / (5) 5 / (5) 6 (5) 6 / (5) 6 / (5) 6 /6 6 / (5) 6 /6 5/ (,6) / 9G 9G 9G 9G 9G 9G 9B 9G0 9G0 9G5 9G5 9G 9G 9G0 9G 9G0 9G 9G G G G 6G 6G 6G 0A 6G 6G 6G G 6G0 G G G G 0G G5 0G 0G5 G 0G B B 0.5 9B 9B 9B 9B 9B 9B 9B 9B0 9B0 9B5 9B5 9A 9B 9B0 9B 9B0 9B 9B 9C B A A 6B 6D 6C 0C 6C 6B 6B C 6C0 B A A A 0B A5 0A 0C5 A 0B /.6 / /6 / G5 G G C5 C B B B B 0. to. bar ( to psig) / /6 / / / 5/6 /. / / / () / / / / / / () 5 (6) 5 / (6) 6 (5) 0A 0A A A A5 C5 A5 5G A C0 G G0 5G0 A G A B A G G G G5 A A A 6G / () () G G0 0D 0D D D D5 C5 D5 5D D C0 D C0 5D0 D D D D D C D B D5 D D D 6C D D0 0. to. bar (6 to psig) / / / / () / 6 () G G 9G 9G 9G5 G 6G G 5C5 B B B 9C 9B 9C5 B 6B B

4 50 Positioners July 0 Instruction Manual Supplement D00X0 Table. Fisher 50 Signal Range Codes () (Continued) 0. to. bar (6 to psig) 0. to.0 bar (6 to 0 psig) 0.6 to.0 bar (9 to 5 psig) 0.6 to.0 bar (9 to 5 psig) Travel Code Travel Code Travel Code Travel Code mm Inches Direct Reverse mm Inches Direct Reverse mm Inches Direct Reverse mm Inches Direct Reverse / (5) / G G5 A C5 0. to.0 bar (6 to 0 psig) / / (6) /6 / / / / / / / 9/6 /6.9 / () / () H 0A 0A 0A G G A5 G G G5 G5 G G C G G H 0H 0H 0D H H H5 D H D5 D5 D 5D5 5D5 5D5 5D5 H C D D 5. / G D / / / / / 5/6 / / 9/6 / / / 5 (6) 5 / (6) 5 (6) 6 (5) 6 / () () G A0 G G G G G G G G G G G G G G A5 A 6G 6G 6G G C D0 H D D D C C D H D D D D D D H5 D 6D 6C 6C D 0. () E D / /6 / /6 / / / / () 5/6 / / / / /6 / 9/6 /6. For 50P signal range codes, contact your Emerson sales office.. Use spring retainer spacer J06; for additional information, see table.. Use spring retainer spacer J6; for additional information, see table.. Use spring retainer spacer J096; for additional information, see table. 5. Use with high pressure bellows and spring retainer spacer J096; for additional information, see table. 6. Use with high pressure bellows.. Use with high pressure bellows and spring retainer spacer J6; for additional information, see table.. For use with 0 or 0 5 size 0 actuators. 5A G G0 F 9F 9F 5G 5G 5F5 5G 5F 0F 5D 5B5 B B C B0 B 5B 5B 5B5 5C 5A B B B B B B 0A B A / 5 () 6 6 / 6 / / G G G G G G B B B B B B B B B. to.0 bar ( to 0 psig) / / / / (6) / 5 (5) 5 / () 6 / (5) / (5) 5G0 5G F5 F 9F 9F E 6F F F F F 5D0 5D C5 D 9H 9C 9C D 6D D D B D

5 Instruction Manual Supplement D00X0 50 Positioners July 0 Table. Range (,) Code Number Part Number () H9000A H95000A H96000A H9000A H9000A H9000A H90000A H9000A H9000A H955000A H9560 H95000A J55000A J55000A K56000A K66000A R650 R000A R550 R990 U50 AX0. The range spring code number is the first number given in each signal range code listed in table. For example, for a signal range of 0 to.0 bar (0 to 5 psig), an actuator travel of. mm (9/6 inch), and direct action, the signal range code from table is 6G. The appropriate range spring is indicated by 6.. Range springs do not have a color code. All range springs are silver.. The first six numbers of a range spring part number is also the tag number. For example, a range spring with part number H9 000A has a tag number of H9. Tags are attached to the parts at the time the parts are manufactured. Table. Bias Spring (,) Code Letter Color Code Part Number A B C D E F G H Silver Light blue Red Light green Dark green Pink Black Brown H60 () H90 () H90 () H960 () J9X00A () J9000A () N000A () R60 (). The bias spring code letter is the letter given in each signal range code listed in table. For example, for a signal range of 0 to.0 bar (0 to 5 psig), an actuator travel of. mm (9/6 inch), and direct action, the signal range code from table is 6G. The appropriate bias spring is indicated by G.. It is necessary to add the bias spring seat (key ) to a unit when changing from an extension type spring (key 9) to a compression type spring (key )..Compression type bias spring (key ).. Extension type bias spring (key 9). Table. Spring Retainer CODE NUMBER () OVERALL LENGTH () EFFECTIVE LENGTH () PART NUMBER () mm Inches mm Inches /6 5/6 6/6 / /6 / / / / /6 /6 /6 / /6 5/ / 55/6 / H90X00 H90X00 H909X00 H9X00 H90X00 H9X00 H55X00 H9X00 J5X00 J996X00. Code numbers 6, 9, and are not used.. Refer to figure.. The spring retainer code number is the second number given in each signal range code listed in table. For example, for a signal range of 0 to.0 bar (0 to 5 psig), an actuator travel of. mm (9/6 inch), and direct action, the signal range code from table is 6G. The appropriate spring retainer is indicated by. 5

6 50 Positioners July 0 Instruction Manual Supplement D00X0 Table 5. Spring Retainer Spacer OVERALL LENGTH () mm Inches mm Inches /6 / /6 / Refer to figure.. The spacer number is the first 6 characters of the part number and is stamped on the part. EFFECTIVE LENGTH () PART NUMBER () 9/6 / /6 5/6 L069X00 J6 J06 P95X00 J096 Figure. Bias and Range Springs for Zero and Span Adjustments SPRING LOCK BELLOWS BEAM TRAVEL STOP (E RING) BIAS SPRING POST BIAS SPRING ZERO ADJUSTMENT LOCKNUTS BEAM RANGE SPRING (KEY ) SPRING RETAINER (KEY ) SPRING RETAINER SPACER (IF REQUIRED) (KEY 5) PISTON ROD EXTENSION (OPTIONAL) EFFECTIVE LENGTH OVERALL LENGTH EFFECTIVE LENGTH SPRING RETAINER SPRING RETAINER SPACER NOTE: BOTTOM OF BIAS SPRING POST THREAD MUST BE POSITIONED AS SHOWN FOR PROPER POSITION OF E RING TRAVEL STOPS. AJ0 C H90 C J C B0 6

7 Instruction Manual Supplement D00X0 50 Positioners July 0

8 50 Positioners July 0 Instruction Manual Supplement D00X0 Neither Emerson, Emerson Automation Solutions, nor any of their affiliated entities assumes responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use, and maintenance of any product remains solely with the purchaser and end user. Fisher is a mark owned by one of the companies in the Emerson Automation Solutions business unit of Emerson Electric Co. Emerson Automation Solutions, Emerson, and the Emerson logo are trademarks and service marks of Emerson Electric Co. All other marks are the property of their respective owners. The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. All sales are governed by our terms and conditions, which are available upon request. We reserve the right to modify or improve the designs or specifications of such products at any time without notice. Emerson Automation Solutions Marshalltown, Iowa 505 USA Sorocaba, 0 Brazil Cernay, 600 France Dubai, United Arab Emirates Singapore 6 Singapore 05, 0 Fisher Controls International LLC. All rights reserved.