Emerson Fisher 3710 User Manual Download

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Fisher

™

3710 and 3720 Valve Positioners and

3722 Electro-Pneumatic Converter

Contents

Introduction

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Scope of Manual

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Description

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Positioner to Actuator Mountings List

. . . . . . .

Specifications

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Educational Services

. . . . . . . . . . . . . . . . . . . . . . . . .

Installing the 3722 Converter

. . . . . . . . . . . . . . . . . . .

Hazardous Area Classifications and

Special Instructions for “Safe Use” and
Installation in Hazardous Areas
for 3722 Converter

. . . . . . . . . . . . . . . . . . . . . . .

CSA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ATEX

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

IECEx

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installation

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Mounting the Positioner

. . . . . . . . . . . . . . . . . . . . . .

Installing the 3710 or 3720

Pneumatic Positioner on Size 25 or 50
585 and 585R Actuators

. . . . . . . . . . . . . . . . . .

Connections

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Supply Connection

. . . . . . . . . . . . . . . . . . . . . . . . . .

Output Connections

. . . . . . . . . . . . . . . . . . . . . . . .

Instrument Connection

. . . . . . . . . . . . . . . . . . . . . .

Vent Opening, Purge Option, and Actuator

Vent Connection

. . . . . . . . . . . . . . . . . . . . . . . . .

Connecting the Purge Tube

. . . . . . . . . . . . . . .

Electrical Connection for the 3720

Positioner

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Diagnostic Connections

. . . . . . . . . . . . . . . . . . . . .

Calibration

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Setting the Initial Cam Position

. . . . . . . . . . . . . . .

Zero and Span Adjustments

. . . . . . . . . . . . . . . . . .

Standard or Beacon Indicator Alignment

. . . . . . . .

Changing Positioner Action

. . . . . . . . . . . . . . . . . . . .

Single‐Action/Double‐Action

. . . . . . . . . . . . . . . . .

Direct‐Action/Reverse‐Action

. . . . . . . . . . . . . . . . .

Split‐Range Operation

. . . . . . . . . . . . . . . . . . . . . . .

Changing the Spool Valve

(To Increase Positioner Output Capacity)

. . . . .

Changing the Span Adjuster Assembly

(To Change Positioner Input Range)

. . . . . . . . .

Principle of Operation

. . . . . . . . . . . . . . . . . . . . . . . .

Figure 1. Positioners

W6144

W6058‐1

SUPPLY
CONNECTION

3720 POSITIONER MOUNTED

ON 1052 ACTUATOR

3710 POSITIONER MOUNTED

ON 1066 ACTUATOR

Instruction Manual

D101728X012

3710 and 3720 Positioners

September 2017

Summary of Contents for Fisher 3710

Page 1: ... 20 Instrument Connection 20 Vent Opening Purge Option and Actuator Vent Connection 20 Connecting the Purge Tube 22 Electrical Connection for the 3720 Positioner 22 Diagnostic Connections 23 Calibration 25 Setting the Initial Cam Position 25 Zero and Span Adjustments 26 Standard or Beacon Indicator Alignment 27 Changing Positioner Action 28 Single Action Double Action 29 Direct Action Reverse Acti...

Page 2: ...aintenance information for the Fisher 3722 electro pneumatic converter Refer to separate instruction manuals for information on the actuator control valve and other accessories Do not install operate or maintain a 3710 pneumatic positioner a 3720 electro pneumatic positioner or a 3722 electro pneumatic converter without being fully trained and qualified in valve actuator and accessory installation...

Page 3: ...down to 5 micrometer particle size is recommended Lubricant content is not to exceed 1 ppm weight w w or volume v v basis Condensation in the air supply should be minimized Per ISO 8573 1 Maximum particle density size Class 7 Oil content Class 3 Pressure Dew Point Class 3 or at least 10_C less than the lowest ambient temperature expected 3720 positioners are not approved for use with natural gas a...

Page 4: ...ls International LLC declares this product to be in compliance with Article 4 paragraph 3 of the PED Directive 2014 68 EU It was designed and manufactured in accordance with Sound Engineering Practice SEP and cannot bear the CE marking related to PED compliance However the product may bear the CE marking to indicate compliance with other applicable European Community Directives NOTE Specialized in...

Page 5: ...anging Positioner to Actuator Mountings List The positioner mounts directly to the actuator cover plate of Fisher 1051 1052 and 1061 actuators See table 4 for actuator sizes Figure 2 shows a positioner ready for mounting on a piston rotary actuator A mounting plate key 43 is used to mount the positioner base plate to Fisher 1051 1052 1061 1066 and 2052 actuators See table 4 for actuator sizes The ...

Page 6: ...1 or 1 800 338 8158 e mail education emerson com emerson com fishervalvetraining Installing the 3722 Converter See figure 3 WARNING Avoid personal injury from sudden release of process pressure Before mounting the 3720 electro pneumatic positioner or 3722 electro pneumatic converter D Wear protective eyewear gloves and clothing whenever possible D Do not remove the actuator from the valve while th...

Page 7: ...fications and Special Instructions for Safe Use and Installation in Hazardous Locations for 3722 Converter Note These Special Instruction for Safe Use and Installation in Hazardous Location also apply to 3720 positioners Certain nameplates may carry more than one approval and each approval may have unique installation wiring requirements and or conditions of safe use These special instructions for...

Page 8: ...insically Safe Explosion proof Type n Dust Ignition proof Non incendive No special conditions for safe use Refer to table 6 for approval information Table 6 Hazardous Area Classifications for Fisher 3722 Converter 1 FM United States Certification Body Certification Obtained Entity Rating Temperature Code FM Intrinsically Safe Class I Zone 0 AEx ia IIC T4 T5 T6 per drawing GE28590 figure 35 Class I...

Page 9: ...emperatures over 70_C cables and cable glands suitable for at least 90_C shall be used D If using a rigid conduit connection an Ex d certified sealing device such as a conduit seal with setting compound shall be provided immediately to the entrance of the enclosure For ambient temperatures over 70_C the wiring and setting compound in the conduit seal shall be suitable for at least 90_C Type n No s...

Page 10: ... 82_C T5 Ta 82_C Type n WARNING Disconnect power before opening 40_C Ta 82_C T6 Ta 82_C Refer to table 8 for approval information Table 8 Hazardous Area Classifications for Fisher 3722 Converter 1 IECEx Certification Certification Obtained Entity Rating Temperature Code IECEx Intrinsically Safe Gas Ex ia IIC T4 T5 T6 Ga Ui 30 VDC Ii 150 mA Pi 1 25 W Ci 0 nF Li 0 mH T4 Tamb 82 C T5 Tamb 62 C T6 Tam...

Page 11: ...g the input port on the positioner base plate Place the other O ring around the supply port 3 Locate the two socket head mounting screws key 84 Properly orient the converter and secure it to the positioner base plate with the mounting screws Be sure the O rings remain in place while securing the converter to the positioner base plate 4 Connect supply pressure to the converter supply port Mounting ...

Page 12: ...ent D When installing a positioner or converter in a hazardous area turn off control signals until installation is complete Be sure all safety barriers connections and the converter housing cap and O ring are properly installed before supplying a control signal to the unit D Check with your process or safety engineer for any additional measures that must be taken to protect against process media W...

Page 13: ...ositioner Actuator Combinations 42B8466 A 42B8466 A 3710 POSITIONER MOUNTED ON A 1061 SIZE 30 ACTUATOR 3720 POSITIONER MOUNTED ON A 1061 SIZE 30 ACTUATOR NOTES FIGURE 33 SHOWS ADDITIONAL POSITIONER ACTUATOR COMBINATIONS ACTUATOR COVER PLATE REQUIRED WHEN REPLACING AN INSTALLED 3610 POSITIONER 1 ...

Page 14: ...ent of the new positioner in the desired orientation Secure the new cover plate to the actuator 4 Install the positioner tie bar key 42 in place of the travel indicator on the actuator hub Note Before installation of the positioner mounting plate key 43 review the mounting drawings figures 4 and 33 Properly align the positioner mounting plate before attaching the mounting plate to the actuator cov...

Page 15: ...12 3710 and 3720 Positioners September 2017 15 Figure 5 Typical Piston Actuator Fisher 1061 W6147 1 W6146 1 REAR VIEW POSITIONER BASE PLATE AND MOUNTING AREA TIE BAR MOUNTING PLATE REMOVED Figure 6 Loosening the Cam Locknut W5916 ...

Page 16: ...ck washer key 100 and flat washer key 103 Place the flat washer between the lock washer and the hex nut The washers and hex nut should all be on the same side of the drive stud bracket as shown in figure 9 The flat washer may be moved to the other side of the drive stud between the drive stud and the drive stud bracket if extra space is required to position the roller bearing near the center of th...

Page 17: ...h the stem connector at this time 7 Attach the mounting bearing key 97 to the mounting plate key 43 with three hex socket cap screws key 93 8 Refer to the actuator instruction manual Loosen the four screws and remove the actuator blanking plate 9 Attach the positioner mounting plate to the actuator yoke as shown in figure 10 with four spacers keys 61 four cap screws key 45 and lock washers key 92 ...

Page 18: ... blanking plate and four screws Figure 10 Mounting Plate Positioned on Actuator W8461 Figure 11 Positioning Drive Stud in Feedback Lever FEEDBACK LEVER KEY 94 DRIVE STUD AND ROLLER BEARING Connections WARNING The positioner is capable of providing full supply pressure to connected equipment To avoid personal injury and equipment damage make sure the supply pressure never exceeds the maximum safe w...

Page 19: ... maintenance of a filter that removes particles larger than 40 micrometers in diameter will suffice in most applications check with an Emerson field office and industry instrument air quality standards for use with corrosive gas or if you are unsure about the proper amount or method of air filtration or filter maintenance 3720 positioners and 3722 converters do not meet third party approvals for u...

Page 20: ...ion See figure 12 Use 3 8 inch tubing to connect the output from the control device to the INSTRUMENT connection on a pneumatic positioner For the electro pneumatic positioner refer to the Electrical Connection section Vent Opening Purge Option and Actuator Vent Connection WARNING Personal injury or property damage could result from fire or explosion of the accumulated gas if a flammable gas is us...

Page 21: ...t pressure from the positioner into the actuator housing Within the actuator and positioner assembly exhaust pressure takes the following course D The actuator exhaust pressure vents from the actuator through the positioner spool valve into the positioner case D The exhaust pressure then exits the positioner case through the vent opening D The purge tube carries the exhaust pressure into the actua...

Page 22: ...ppropriate tool such as a screwdriver through the vent opening into the purge tube When the positioner is secured to the actuator install the vent screen 3 Before mounting the positioner be sure the second O ring is properly fitted to the end of the purge tube Use care when mounting the positioner Be sure the purge tube with O ring fits into the vent opening on the rear of the positioner base plat...

Page 23: ...control valve packages valve actuator positioner and accessories special connectors and hardware are available The hardware required for diagnostic connections includes 3 4 NPT pipe nipples and pipe tees with a 1 8 NPT pipe bushing for the connector The connector consists of a 1 8 NPT body and body protector If the diagnostic connectors are ordered for a positioner with gauges 1 8 inch stems are a...

Page 24: ...PLE OUTPUT A PIPE NIPPLE OUTPUT B 3710 3722 STEM PROVIDED WHEN GAUGE IS SPECIFIED GAUGE BODY PROTECTOR BODY PIPE BUSHING PIPE TEE CONNECTOR BODY TO INSTRUMENT PIPE TEE PIPE BUSHING BODY BODY PROTECTOR PIPE NIPPLE SUPPLY PIPE NIPPLE SUPPLY PIPE NIPPLE INSTR 3710 3720 POSITIONER 3710 POSITIONER GAUGE NOTE 1 REMOVE PIPE PLUG THEN INSTALL CONNECTOR BODY 1 STEM PROVIDED WHEN GAUGE IS SPECIFIED ...

Page 25: ... cover assembly key 7 2 See figure 17 Inspect the cam key 36 and loosen the cam locknut key 37 3 Disconnect the positioner output tubing at the actuator and attach a regulated air source or other means of positioning the actuator 4 Position the actuator to correspond with the initial valve position at minimum instrument input signal Stroke the actuator to the final valve position and note the dire...

Page 26: ... SCREW HOLE CAM MOUNTING SCREW HOLE 1 SUMMING BEAM FLEXURE 2 1 To start this procedure if necessary unscrew the four captive cover screws key 8 and remove the cover assembly key 7 2 Apply supply pressure 3 Provide a way to check the input signal Apply the minimum input signal For example D For a 3710 pneumatic positioner if the input signal range is 0 2 to 1 0 bar 3 to 15 psig apply 0 2 bar 3 psig...

Page 27: ... above Note The outputs of a properly calibrated positioner will be in the saturated condition zero pressure or full supply when the valve is fully open or closed 8 Increase the input signal until the input reaches the maximum input signal Observe the actuator valve travel as the input increases Repeat steps 3 through 8 until the actuator travel corresponds to the input signal range 9 Properly ali...

Page 28: ...ld the indicator scale key 14 to the positioner cover Remove the indicator scale Then carefully lift the pointer key 13 from the indicator key 15 Place the pointer in the proper position and re install the indicator scale and screws Make sure the indicator scale and pointer are now properly aligned by moving the valve If sufficient adjustment is not available in the scale the actuator might be ins...

Page 29: ...le acting For Fisher diaphragm actuators this connection is known as the diaphragm casing connection D For double acting output with direct action refer to the actuator instruction manual for the specific connections for positioner OUTPUT A and B Connect positioner OUTPUT A to the actuator cylinder connection where actuator air pressure is exhausted during the initial actuator stroke Connect posit...

Page 30: ...m a single control device split between two positioner actuator control valve packages One positioner will fully stroke one actuator with an input signal range from D 0 2 to 0 6 bar 3 to 9 psig D 0 6 to 1 0 bar 9 to 15 psig D 0 4 to 1 2 bar 6 to 18 psig D 1 2 to 2 0 bar 18 to 30 psig 1 Turn off supply pressure Remove the positioner cover assembly key 7 2 Loosen the cam locknut key 37 Rotate the ca...

Page 31: ...ol valve body and spool with care The body and spool are manufactured to precise tolerances and are prepared as a matched set 4 Check the function of the new spool valve to be installed The spool should slide freely in the valve body Note See figure 22 Before securing the spool valve make sure the spool head makes proper contact with the end of the summing beam 5 See figure 22 Position the spool v...

Page 32: ...ve the cam key 36 Note The zero adjustment locknut and zero adjustment knob are identical parts key 35 2 Loosen the zero adjustment locknut and turn the zero adjustment knob key 35 until the range spring is free from the summing beam Move the feedback arm key 21 until the range spring falls away from the summing beam Note The feedback pivot cannot be removed from the positioner base plate 3 Remove...

Page 33: ...properly positioned in contact with the cam 10 Perform the calibration procedures in this manual Principle of Operation See figure 23 Figure 23 Fisher 3710 Positioner Schematic A5944 1 INPUT SIGNAL PRESSURE INPUT MODULE SUMMING BEAM PIVOT FEEDBACK SPRING SPOOL VALVE SUPPLY CAM PIVOT FEEDBACK LEVER PIVOT ZERO ADJ OUTPUT B OUTPUT A PISTON ACTUATOR SPAN ADJ The 3710 pneumatic positioner accepts a pne...

Page 34: ...n the severity of service conditions The following procedure describes disassembly and reassembly of the positioner When inspection or repairs are required disassemble only those parts necessary to accomplish the task When reassembly is complete adjust the positioner as described in the Calibration section of this manual WARNING Avoid personal injury or equipment damage from sudden release of proc...

Page 35: ...ER FROM THE POSITIONER BASE PLATE 1 Be sure all safety procedures have been followed Remove the input wiring and supply connection from the installed 3722 housing 2 Remove the two mounting screws key 84 and carefully separate the converter from the positioner base plate Locate the two O rings key 85 and inspect them Save or replace as necessary 3 Be sure the input and supply ports in the positione...

Page 36: ...n the zero adjustment knob key 35 until the range spring is free from the summing beam See figure 25 Move the feedback arm key 21 until the range spring falls away from the summing beam Note The feedback pivot cannot be removed from the positioner base plate Figure 25 Cam Removed Range Spring FreeFrom Summing Beam W6062 3 Remove the retaining ring E clip key 27 which holds the feedback arm key 21 ...

Page 37: ... needle bearing is pressed into the feedback arm If the needle bearing must be replaced replace the feedback arm assembly key 21 5 If necessary replace the retaining ring washer and zero adjustment pivot 6 Be sure the cam roller key 23 turns freely If necessary remove the shoulder screw key 24 and cam roller from the feedback arm and replace them Removing the Feedback Shaft Cam Shaft 1 Unscrew the...

Page 38: ...eely in the valve body If it doesn t clean the spool valve or replace it Disassembling the Input Module and Summing Beam Assembly 1 Remove the four machine screws key 3 that hold the input module assembly key 30 to the positioner base plate If the spool valve has not been removed use care when lifting off the input module and summing beam assembly Be sure to properly separate the spool from the sp...

Page 39: ... the orientation of the diaphragm plates The diaphragm plates support the diaphragm and act as travel stops When assembling the input module be sure the diaphragm plates are properly positioned D Pull out the assembly diaphragm diaphragm plates and diaphragm connector 2 Grasp the diaphragm connector with a wrench or other appropriate tool and unscrew the machine screw key 30F on the opposite side ...

Page 40: ...installing the machine screw key 30E that holds the diaphragm connector to the summing beam assembly Use a wrench or other tool to hold the diaphragm connector while installing the machine screw 2 Install the machine screw key 30E that connects the summing beam assembly to the diaphragm connector taking care not to twist the diaphragm connector and diaphragm key 30B Use a wrench or other tool to h...

Page 41: ...t 1 Place the action block gasket key 29 on the mounting area found on the positioner base plate Place the action block key 28 on the gasket and secure it to the base plate using the four machine screws key 3 2 Inspect the three O rings key 2 found between the spool valve key 1 and the action block Replace the O rings if necessary Note See figure 26 Handle the spool valve body and spool with care ...

Page 42: ...al if necessary Replacing the Feedback Arm Assembly and Span Adjuster Assembly Note The zero adjustment locknut and zero adjustment knob are identical parts key 35 Note To identify the span adjuster assembly for 0 4 to 2 0 bar 6 to 30 psig input range red color coding appears on the range spring 1 Make sure the zero adjustment knob key 35 is installed on the span adjustment shaft threaded rod befo...

Page 43: ...umatic positioner re install using the following instructions 1 Inspect the O rings key 85 and replace if necessary If the O rings are in good condition apply lubricant key 82 to the O rings and install them in the recessed areas surrounding the input and supply ports on positioner base plate key 16 figure 31 Be sure the O rings remain in place 2 Apply sealant key 64 or 83 to the two socket head s...

Page 44: ...alibration section of this manual Do not attempt to calibrate the converter module There are no converter module adjustments Parts Ordering When corresponding with your Emerson sales office or Local Business Partner about this equipment be sure to mention the positioner serial number WARNING Use only genuine Fisher replacement parts Components that are not supplied by Emerson Automation Solutions ...

Page 45: ... indicator use outside the positioner cover Key Description Note Key 13 pointer is used with key 15 indicator Key 13 pointer fits over the molded slot in the center of key 15 and rests in appropriate quadrant recess in the surface of key 15 13 Pointer 14 Indicator scale Note Key 15 indicator features a molded slot to facilitate adjustment of the indicator during installation of the positioner cove...

Page 46: ... Positioners September 2017 46 Figure 31 Fisher 3710 Components and Subassemblies 42B7272 SHT 2 OF 3 42B7272 SHT 2 OF 3 42B7272 SHT 1 OF 3 3710 WITH BEACON INDICATOR SECTION A A SECTION C C SECTION D D SECTION B B REAR VIEW V ADD LUBE V ADD LUBE ...

Page 47: ...31 O ring For use between input module assy and positioner base plate 32 Zero adjustment pivot 33 1 Washer metric For zero adjustment pivot Key Description 34 1 Retaining ring E clip metric For zero adjustment pivot Note Two zero adjusters key 35 are required one for the zero adjustment locknut and one for the zero adjustment knob 35 Zero adjuster 2 req d 36 Cam Rotary Valves std 90 deg rotation S...

Page 48: ...each gauge or tire valve to pipe bushing key 68 57 Pipe plug for single acting positioners only 62 Tire valve Single action 1 req d or Double action 2 req d 63 Lubricant silicone sealant not furnished with positioner 64 Anti seize sealant not furnished with positioner 65 Lubricant 20W 50 Motor Oil or equivalent not furnished with positioner 66 PTFE Petroleum based lubricant not furnished with posi...

Page 49: ...O ring Used w nozzle restriction key 75 Key Description 77 O ring For use w nozzle restriction key 75 For use w converter module key 89 78 Vent 79 O ring Used with converter cap key 72 80 Machine screw 2 req d 81 Wire retaining screw Used as a grounding screw for both internal and external locations includes square washer 2 req d Figure 32 Fisher 3722 Components and Subassemblies 34B0694 A 3720 WI...

Page 50: ...r 1051 size 60 1052 size 60 70 and 1061 size 30 40 60 Key Description 42 Tie bar For 1051 1052 size 33 and 1066 size 20 use tie bar extension key 44 instead of the tie bar key 42 For 1051 1052 sizes 30 2 40 60 For 1052 size 20 size 70 For 1061 sizes 30 40 60 68 sizes 80 100 For 1066 size 27 size 75 43 Mounting plate For 1052 size 20 For 1051 1052 size 33 For 1061 sizes 80 100 For 1066 size 20 27 s...

Page 51: ...1052 sizes 30 2 40 60 1052 size 70 1061 sizes 30 40 60 68 2 req d For 1052 size 20 2 req d For 1051 1052 size 33 2 req d For 1061 sizes 80 100 2 req d For 1066 sizes 20 27 2 req d For 1066 size 75 2 req d For 2052 size 1 2 3 2 req d 58 Purge tube For 1051 1052 sizes 30 2 40 60 1052 size 70 1061 sizes 30 40 60 68 Key Description 59 O ring purge tube 2 req d 60 Coupling For 1061 sizes 80 100 For 106...

Page 52: ... 3710 and 3720 Positioners September 2017 52 Figure 33 Positioner Mountings Continued 42B8484 A 42B8466 A 3710 POSITIONER MOUNTED ON A 1051 1052 SIZE 30 THROUGH 70 OR 1061 ACTUATOR 3710 POSITIONER MOUNTED ON A 1066 SIZE 75 ACTUATOR ...

Page 53: ...ings required 50 Elbow 51 Connector 52 Swivel Loop Schematics This section includes loop schematics required for wiring of intrinsically safe installations If you have any questions contact your Emerson sales office or Local Business Partner Figure 34 CSA Loop Schematic for Fisher 3722 Converter Installation Drawing GE28591 GE28591 A NOTES 1 BARRIERS MUST BE CSA CERTIFIED WITH ENTITY PARAMETERS AN...

Page 54: ... GROUND MUST BE LESS THAN ONE OHM 6 NORMAL OPERATING CONDITIONS 30 VDC 20 mADC 7 FOR ENTITY INSTALLATION I S AND N I Vmax Voc or Vt Ci Ccable Ca Imax Isc or It Li Lcable La Pi Po or Pt Figure 35 FM Loop Schematic for Fisher 3722 Converter Installation Drawing GE28590 GE28590 B INTRINSIC SAFETY CLASS I II III DIV 1 GROUPS A B C D E F G CLASS I ZONE 0 AEx ia IIC NON INCENDIVE CLASS I DIV 2 GROUPS A ...

Page 55: ...Instruction Manual D101728X012 3710 and 3720 Positioners September 2017 55 ...

Page 56: ...ich are available upon request We reserve the right to modify or improve the designs or specifications of such products at any time without notice E 1987 2017 Fisher Controls International LLC All rights reserved Fisher and FlowScanner are marks owned by one of the companies in the Emerson Automation Solutions business unit of Emerson Electric Co Emerson Automation Solutions Emerson and the Emerso...

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