Emerson Fisher 3710- Manuals

Page 2 - Instruction Manual; Introduction; Scope of Manual

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 2 Contents (cont'd) Maintenance 34 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Positioner Maintenance 34 . . . . . . . . . . . . . . . . . . . . . . Replacing the Standard or Beacon Indicator 34 . Removing the ...

Page 3 - Table 1. Specifications

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 3 Table 1. Specifications Available Configurations 3710: J Single‐ or J double‐acting pneumatic rotary valve positioner 3720: J Single‐ or J double‐acting electro‐pneumatic rotary valve positionerconsisting of a 3710 with a 3722 a...

Page 4 - Hazardous Area Classification for 3710 Positioner

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 4 Table 1. Specifications (Continued) Hazardous Area Classification for 3710 Positioner 3710 pneumatic positioners comply with therequirements of ATEX Group II Category 2 Gas andDust Electrical Classifications for 3722 Converter C...

Page 5 - Table 3. Input Signal Range; Positioner to Actuator Mountings List; Figure 2. Mounting the Positioner Base Plate

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 5 Table 3. Input Signal Range POSITIONER INPUT SIGNAL RANGE Pneumatic Electronic 3710 w/3 to 15 psig span adj. ass'y (no color coding) J 0.2 to 1.0 bar (3 to 15 psig) J 0.2 to 0.6 bar (3 to 9 psig) and 0.6 to 1.0 bar (9 to 15 psig...

Page 6 - Table 4. Positioner to Actuator Mountings; Specifications; Specifications are shown in table 1.; Educational Services; Installing the 3722 Converter; WARNING; Wear protective eyewear, gloves and clothing whenever possible.

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 6 Table 4. Positioner to Actuator Mountings POSITIONER TO ACTUATOR MOUNTINGS Direct Mounting to Actuator Cover Plate (1) Mounting Plate Required S 1051, size 30 (2) , 40, and 60 S 1052, sizes 30 (2) , 40, 60, and 70 S 1061, size 3...

Page 7 - Do not open where an explosive dust atmosphere is present.; Note; No special conditions for safe use.

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 7 D Use lock‐out procedures to be sure that the above measures stay in effect while you work on the equipment. D Do not open where an explosive dust atmosphere is present. D Check with your process or safety engineer for any ad...

Page 8 - ATEX; Standards Used for Certification

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 8 Table 5. Hazardous Area Classifications for Fisher 3722 Converter (1) —CSA (Canada) Certification Body Certification Obtained Entity Rating Temperature Code CSA Intrinsically SafeEx ia IIC T4/T5/T6 per drawing GE28591 (figure 34...

Page 9 - Special Conditions for Safe Use

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 9 Special Conditions for Safe Use Intrinsically Safe This equipment is intrinsically safe and can be used in potentially explosive atmospheres. The electrical parameters of certified equipment which can be connected to the device ...

Page 10 - Conditions of Certification; Substitution of components may impair intrinsic safety.; Entity Parameters: Ui; Type n; Disconnect power before opening.; Refer to table 8 for approval information.

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 10 IECEx Conditions of Certification Intrinsically Safe WARNING Substitution of components may impair intrinsic safety. -40 _ C ≤ Ta ≤ +82 _ C; T6 (Ta ≤ +47 _ C); T5 (Ta ≤ +62 _ C); T4 (Ta ≤ +82 _ C) Entity Parameters: Ui = 30 V, ...

Page 11 - Installation; Figure 3. Fisher 3722 Electro‐Pneumatic Converter; base plate and clean the ports.; Mounting the Positioner

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 11 Installation To change an existing 3710 positioner into a 3720 positioner, install a 3722 electro‐pneumatic converter (figure 3).The 3722 electro‐pneumatic converter mounts over the input and supply connections of the 3710 posi...

Page 13 - Figure 4. Typical Positioner/Actuator Combinations

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 13 Figure 4. Typical Positioner/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 C...

Page 14 - actuator cover cap screws.

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 14 1. See figure 5 for a typical actuator. Remove the actuator travel indicator machine screws, travel indicator, and actuator cover cap screws. Note When removing the actuator cover plate, take care not to change the position of ...

Page 15 - Figure 6. Loosening the Cam Locknut

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 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 - Figure 7. Typical Fisher 3710 Positioner Mounted on a 585 Actuator

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 16 Installing the 3710 or 3720 Pneumatic Positioner on Size 25 or 50 585 and585R Actuators Refer to figures 7, 8, and 9 for key number locations unless noted otherwise. Figure 7. Typical Fisher 3710 Positioner Mounted on a 585 Act...

Page 17 - Figure 8. Drive Stud and Roller Bearing Assembly; stem connector at this time.; actuator stem and valve stem.

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 17 Figure 8. Drive Stud and Roller Bearing Assembly DRIVE STUD(KEY 95) ROLLER BEARING(KEY 101) E‐RING(KEY 102) Figure 9. Drive Stud Bracket with Drive Stud and Roller Bearing Assembly FLAT WASHER(KEY 1103) HEX NUT(KEY 96) LOCK WAS...

Page 18 - the appropriate travel mark on the feedback lever.; Connections

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 18 15. Make sure the cam locknut (key 37, figure 31) is loose, then stroke the valve/actuator to mid‐travel. Adjust the drive stud location vertically so that the feedback lever is perpendicular to the stem. Tighten the hex nut at...

Page 19 - Figure 12. Connections; The conduit connection to the converter is 1/2‐14 NPT.; Supply Connection

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 19 Figure 12. Connections 34B0693‐AB2386‐1 OUTPUT CONNECTIONS INPUT (SUPPLY)CONNECTION VENT M20 CABLEGLAND RIGHT SIDE VIEW 3720 POSITIONER TOP VIEW INPUTCONNECTIONS VENTOPENING 3710 POSITIONER RIGHT SIDE VIEW REAR VIEW The conduit...

Page 20 - Supply pressure must not exceed the following limits:; Output Connections; Use 3/8‐inch tubing between the actuator and positioner.; Instrument Connection

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 20 Supply pressure must not exceed the following limits: D For the positioner, do not exceed the maximum pressure rating of 10.3 bar (150 psig). D For actuator pressure, refer to the appropriate actuator instruction manual for m...

Page 21 - Figure 13. Mounting the Positioner Base Plate with Purge Tube

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 21 Figure 13. Mounting the Positioner Base Plate with Purge Tube W6073 PURGE TUBE(KEY 58) O‐RINGS (KEY 59) LONG‐BLADED SCREWDRIVER THROUGH VENT The positioner does not have an external vent connection. A unit exhausts actuator pre...

Page 22 - this hole in the cover plate.; Install the vent screen in the positioner base plate.; Electrical Connection for the 3720 Positioner

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 22 If the 1/4 NPT vent connection is available, a vent line can be installed from the actuator. However, thevalve/actuator/positioner assembly is not airtight. Maintain adequate ventilation and observe other safety measures. For h...

Page 23 - m) or 4 pounds force per; Figure 15. Circuit Schematic; Diagnostic Connections

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 23 Use the 1/2‐14 NPT conduit connection for field wiring installation. Refer to figures 14 and 15 when connecting fieldwiring from the control device to the converter. Connect the positive wire from the control device to the conv...

Page 24 - Figure 16. Diagnostic Connections

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 24 Figure 16. Diagnostic Connections 13B8743‐AB2414 12B8055‐AB2385 PIPE NIPPLEOUTPUT “B” PIPE NIPPLEOUTPUT “A” PIPE NIPPLEOUTPUT “A” PIPE NIPPLEOUTPUT “B” 3710 3722 STEM PROVIDED WHENGAUGE IS SPECIFIED GAUGE BODY PROTECTOR BODY PI...

Page 25 - Calibration; Setting the Initial Cam Position; positioning the actuator.

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 25 Calibration The following calibration procedures are for the 3710 pneumatic positioner adjustment. For the 3720electro‐pneumatic positioner, there are no adjustments within the 3722 converter portion of the positioner. Alladjus...

Page 26 - Zero and Span Adjustments; Figure 19. Features and Adjustments

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 26 Zero and Span Adjustments See figure 19. Figure 19. Features and Adjustments W5947 NAMEPLATEAREA SCREENEDVENT OPENING ZERO ADJ PIVOT SPAN ADJ SHAFT(THREADED ROD) ZERO ADJUSTERLOCK NUT ZERO ADJUSTER FEEDBACKARM ASSY NOTES:THE SP...

Page 27 - Tighten the zero adjustment locknut before proceeding to step 5.; Standard or Beacon Indicator Alignment

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 27 Tighten the zero adjustment locknut before proceeding to step 5. 5. Slowly increase the input signal until the input reaches the maximum input signal. Observe the actuator travel and valve position as the input increases. Deter...

Page 28 - Figure 20. Standard Indicator; Changing Positioner Action; Wear protective eyewear, gloves, and clothing whenever possible.

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 28 Figure 20. Standard Indicator NOTES:1RETAINING RING (E‐CLIP) (KEY 12) IS NOT SHOWN.2THE SHAFT OF THE INDICATOR (KEY 15) PASSES THROUGH THE POSITIONER COVER AND FITS OVER THE END OF THE FEEDBACK SHAFT (CAM SHAFT) (KEY 38). W6061...

Page 29 - Vent the actuator loading pressure.; Single‐Acting/Double‐Acting; Figure 21. Output Connections; Use 3/8‐inch tubing between the positioner and actuator.; Direct‐Acting/Reverse‐Acting

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 29 D Vent the actuator loading pressure. D Use lock‐out procedures to be sure that the above measures stay in effect while you work on the equipment. D Check with your process or safety engineer for any additional measures that...

Page 30 - OUTPUT B. Connect piping from OUTPUT B to OUTPUT A.; Split‐Range Operation; Replace the positioner cover assembly.; Changing the Spool Valve

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 30 See figure 21. 1. Turn off supply pressure. Reverse the piping connections between the actuator and the positioner output connections (OUTPUT A and OUTPUT B). D For single‐acting output, disconnect piping from OUTPUT B. Unplug...

Page 31 - Rather, the summing beam should contact the

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 31 D Vent the actuator loading pressure. D Use lock‐out procedures to be sure that the above measures stay in effect while you work on the equipment. D Check with your process or safety engineer for any additional measures that...

Page 32 - Figure 22. Spool Valve and Summing Beam; span adjuster assembly.

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 32 Figure 22. Spool Valve and Summing Beam A6044 SPOOLFLEXURE LARGER VIEW OF SPOOL HEAD SPOOLFLEXURE SPOOLHEAD SPOOL VALVE ASSY SPOOL RELIEF SPOOLHEAD SUMMINGBEAM ASSY CLEARANCE Changing the Span Adjuster Assembly (To Change Posit...

Page 33 - contact with the cam.; Principle of Operation; Figure 23. Fisher 3710 Positioner Schematic

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 33 6. Inspect the zero adjustment pivot (key 32). Be sure it rotates freely. If necessary, replace the zero adjustment pivot. Also, if necessary, replace the feedback arm assembly (key 21) and cam roller (key 23), following the in...

Page 34 - Maintenance; on both sides of the valve.; Positioner Maintenance; Replacing the Standard or Beacon Indicator

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 34 determined by the location or rise of the cam which is attached to the feedback shaft. When the two opposing forcesare equal or at a steady state, the summing beam holds the spool in a neutral position. At steady state, a small...

Page 35 - indicator/extension shaft from the positioner cover.; Removing the 3722 Converter; Figure 24. Removing the Converter Mounting Screws; Removing the Positioner

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 35 The optional beacon indicator uses a retaining ring (e‐clip) (key 12) on the outside of the positioner cover. The retaining ring holdsthe extension shaft. After removing the beacon indicator, remove the external retaining ring ...

Page 36 - Figure 25. Cam Removed Range Spring Free

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 36 4. Inspect the feedback tie bar (key 42) attached to the actuator hub. If necessary, unscrew the machine screws (key 47) and remove the tie bar. Removing the Feedback Arm Assembly 1. Unscrew the cam locknut (key 37) and remove ...

Page 37 - the feedback arm and replace them.; Disassembling the Spool Valve, Action Block, and Gasket

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 37 Disassembling 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 p...

Page 38 - Figure 26. Spool Valve Body and Spool; Disassembling the Input Module and Summing Beam Assembly

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 38 Figure 26. Spool Valve Body and Spool W5917 SPOOL VALVEBODY SPOOL HEAD SPOOL 1. Unscrew the two machine screws (key 3) that hold the spool valve (key 1) onto the action block (key 28). Remove the spool valve, taking care when s...

Page 40 - Figure 29. Assembly of Input Module; Assembling the Input Module and Summing Beam Assembly

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 40 Figure 28. Input Module Diaphragm and DiaphragmHousing W5915 Figure 29. Assembly of Input Module A6043 Assembling the Input Module and Summing Beam Assembly 1. Position the summing beam on the input module housing. Place the fl...

Page 41 - Figure 30. Spool Valve and Summing Beam; Assembling the Spool Valve, Action Block, and Gasket

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 41 4. See figure 30. Properly position the input module and summing beam assembly on the positioner base plate using the alignment pins on the input module. If the spool valve (key 1) has not been removed, use care when positionin...

Page 42 - Replacing the Feedback Arm Assembly and Span Adjuster Assembly; Perform the calibration procedures in this manual.; Replacing the Converter Primary O‐Ring and Filter; Key numbers used in this procedure are shown in figure 32.

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 42 5. Before tightening the machine screws holding the spool valve, make sure the end of the summing beam does not contact the spool. Rather, the summing beam should contact the spool head . If necessary, adjust the position of th...

Page 43 - See figure 31 for key number locations.; Assembling the 3722 Converter; the converter module into the housing.

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 43 Disassembling the 3722 Converter See figure 31 for key number locations. 1. Turn off electrical power to the converter. Release all supply pressure from the positioner. 2. Remove the cap (key 72) and disconnect the field wiring...

Page 44 - supply pressure and a 4 to 20 mA DC input signal.; Parts Ordering; Parts Kits; Parts List

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 44 Testing the 3722 Converter Module Check the operation of the converter module by installing a pressure gauge in the instrument output port in theconverter housing. 1. Remove the pipe plug (key 86, figure 32) in the instrument o...

Page 46 - Figure 31. Fisher 3710 Components and Subassemblies

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 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 - Figure 31. Fisher 3710 Components and Subassemblies (continued)

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 47 Figure 31. Fisher 3710 Components and Subassemblies (continued) 42B7272 SHT 3 OF 3 3710 WITH GAUGES 3710 WITH TIRE VALVES 3710 WITH STANDARD LOW‐PROFILE INDICATOR V ADD LUBE Key Description Part Number 28 Action block, A03600 (...

Page 49 - Figure 32. Fisher 3722 Components and Subassemblies

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 49 3722 Electro‐PneumaticConverter (refer to figure 32) Key Description 71 Housing, aluminum 1/2‐14 NPT conduit connection 72 Cap, aluminum 73 Screw, aluminum (not shown) used to secure explosion‐proof cap 75 Nozzle restriction Al...

Page 51 - Figure 33. Positioner Mountings

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 51 42B8478‐A 3710 POSITIONER MOUNTED ON A 1051/1052 SIZE 33 ACTUATOR Figure 33. Positioner Mountings Key Description Part Number 47 Machine screw, self‐tapping, 18‐8 SST For attaching the tie bar or tie bar extension to the actuat...

Page 54 - Mounting Parts for Mounting; Fittings; Loop Schematics

Instruction Manual D101728X012 3710 and 3720 Positioners January 2015 54 Mounting Parts for the 67CFR on the 1032 Actuator Key Description Cap screw (2 req'd)Lock washer (2 req'd)Hex nut (2 req'd) Mounting Parts for Mounting Positioner on 585 and 585R Actuators (refer to figures 7, 8, and 9 unless o...