Product Bulletin 3660 and 3661 Positioners 62.1:3660 D101407X012 May 2012 � Fisher 3660 and 3661 Positioners Fisher 3660 pneumatic and 3661 electro‐pneumatic single‐acting positioners are used with various actuators on sliding‐stem valves for throttling applications. These rugged positioners provide a valve position proportional to a pneumatic input or a standard millampere DC input signal received from a control device. Features � Accurate, Efficient, Vibration‐Resistant Operation—Positioner design provides accurate, fast‐responding instruments able to withstand the vibrations of most plant environments. Low steady‐state air consumption contributes to efficient operation. � Variable Gain—Easily adjustable gain and damping adjustments fine tune the positioner stability to specific application requirements. Fisher 3660 Positioner with � Versatility—Positioner accepts a standard Baumann� Valve and Actuator W7174 pneumatic input signal (3660) or a standard milliampere DC input signal (3661) from a control device. This positioner provides split range � Easy Positioner Adjustments—Zero and span capabilities and adjustable zero and spans. adjustments can be made with the cover in place. � Fewer Spare Parts Required—Most of the parts for � Control Valve Diagnostic Testing Capability—To 3660 and 3661 positioners are interchangeable, support diagnostic testing of requiring fewer spare parts to support these valve/actuator/positioner packages with the positioners. FlowScanner� valve diagnostic system, connectors, piping, and other hardware can be � Rugged Construction—The case and cover are installed between the 3660 or 3661 positioner and designed to withstand mechanical vibration and the actuator. A typical connector installation is rough handling. shown in figure 4. www.Fisher.com Product Bulletin 62.1:3660 3660 and 3661 Positioners May 2012 D101407X012 Specifications Available Configuration Positioner Adjustments Span: Adjustable from 19 mm to 50 mm 3660: Single‐acting pneumatic valve positioner (0.75 to 2 inches) stem travel 3661: Single‐acting electro‐pneumatic valve Zero: 0 to 100% positioner (3) Gain: 0.5 to 6% PB (proportional band) . Output Volume Damping: Loop dynamic response Input Signal adjustment 3660: (4) Delivery Capacity : ��0.2 to 1.0 bar (3 to 15 psig), ��0.4 to 2.0 bar 3 (6 to 30 psig), or ��Split range, see table 2 1.4 Bar (20 Psig) Supply: 4.3 normal m /hour 3661: (150 scfh) 3 ��4‐20 mA DC constant current with 30 VDC 2.4 Bar (35 Psig) Supply: 6.6 normal m /hour maximum compliance voltage ��Split range is also (230 scfh) available, see table 2 (4) Exhaust Capacity : 3 Equivalent Circuit (3661) 1.4 Bar (20 Psig) Supply: 4.8 normal m /hour (170 scfh) 120 ohms shunted by three 5.6 V zener diodes 3 2.4 Bar(35 Psig) Supply: 7.4 normal m /hour (260 scfh) Output Signal (4,5) Steady‐State Air Consumption Type: Pneumatic pressure as required by the actuator 3 3660: 0.17 normal m /hour (6.0 scfh) at up to full supply pressure 1.4 bar (20 psig) supply pressure. Action: ��Direct (increasing input signal increases 3 0.22 normal m /hour (7.9 scfh) at 2.4 bar (35 psig) positioner output), ��Reverse (increasing input signal supply pressure decreases positioner output) 3 3661: 0.24 normal m /hour (8.8 scfh) at 1.4 bar 3 (20 psig) supply pressure. 0.33 normal m /hour (1) Supply Pressure (12.3 scfh) at 2.4 bar (35 psig) supply pressure Recommended: 10% above actuator requirements Operating Influences Maximum: 6.2 bar (90 psig) or pressure rating of actuator, whichever is lower Supply Pressure: 69 mbar (1 psig) change in supply pressure changes the actuator stem position less than Medium: air (6) 0.16% of the travel 3660 and 3661 are not compatible with natural gas as the supply medium (1) Operative Temperature Limits 3660 without Pressure Gauges: -40 to 121°C (-40 to 250°F) Performance 3660 with Pressure Gauges: -40 to 82°C Independent Linearity: ±1% of output span. (-40 to 180°F) (2) Hysteresis: 0.5% of output span . 3661 with or without Pressure Gauges: -40 to 82°C Deadband: 0.1% of input span. (-40 to 180°F) Electromagnetic Compatibility for 3661 electro‐pneumatic positioner: Hazardous Area Classification for 3660 Meets EN 61326‐1 (First Edition) 3660 pneumatic positioners comply with the �Immunity—Industrial locations per Table 2 of requirements of ATEX Group II Category 2 Gas and ��the EN 61326‐1 standard. Performance is Dust ��shown in table 1 below. �Emissions—Class A ��ISM equipment rating: Group 1, Class A ‐ continued ‐ 2 Product Bulletin 3660 and 3661 Positioners 62.1:3660 May 2012 D101407X012 Specifications (continued) Hazardous Area Classification for 3661 Conduit Connection for 3661 CSA—Intrinsically Safe, Type n, Non‐incendive 1/2 NPT (M20 or PG13 adaptors optional) FM—Intrinsically Safe, Type n, Non‐incendive Vent Connection ATEX—Intrinsically Safe, Type n (Gas Atmospheres Only) 1/4 NPT internal IECEx—Intrinsically Safe, Type n (Gas Atmospheres Only) Maximum Valve Stem Travel Refer to tables 6, 7, 8, and 9 for additional 50 mm (2 inch); adjustable to obtain lesser travel with information standard input signal—minimum 19 mm (0.75 inch) Housing Classification for 3661 Construction Materials CSA—Type 3 Encl. See table 4 FM—NEMA 3, IP54 Approximate Weight ATEX—IP44 IECEx—IP44 3660: 2.6 pounds (1.2 kg) 3661: 3.0 pounds (1.4 kg) Mounting orientation requires vent location to be below horizontal Options Mounting 3660: ��Instrument and output pressure gauges, The positioner can be mounted in one of four ��Integrally mounted bypass valve different configurations. See figure 1. 3661: Output pressure gauge Pressure Connections 3660 and 3661: Connectors for diagnostic testing 1/4 NPT internal ��stainless steel or ��brass NOTE: Specialized instrument terms are defined in ANSI/ISA Standard 51.1 - Process Instrument Terminology. 1. The pressure/temperature limits in this bulletin and any applicable standard or code limitation should not be exceeded. 2. Hysteresis value at a gain setting of 1/2 turn. 3. Adjusting the gain (PB) adjustment will change the nozzle flapper relationship. This nozzle flapper change affects the actuator/positioner response time. 3 4. Normal m /hr‐‐normal cubic meters per hour (0�C and 1.01325 bar absolute). Scfh‐‐standard cubic feet per hour (60�F and 14.7 psia). 5. Air consumption at a gain setting of 1/2 turn. 6. At supply pressure of 2.4 bar (35 psig). Table 1. Fisher 3661 Electro‐Pneumatic Positioner EMC Summary Results—Immunity (1) Port Phenomenon Basic Standard Test Level Performance Criteria Electrostatic discharge 4 kV contact IEC 61000‐4‐2 A (ESD) 8 kV air 80 to 1000 MHz @ 10V/m with 1 kHz AM at 80% Radiated EM field IEC 61000‐4‐3 A Enclosure 1400 to 2000 MHz @ 3V/m with 1 kHz AM at 80% 2000 to 2700 MHz @ 1V/m with 1 kHz AM at 80% Rated power frequency IEC 61000‐4‐8 60 A/m at 50 Hz A magnetic field Burst IEC 61000‐4‐4 1 kV A Surge IEC 61000‐4‐5 1 kV (line to ground only, each) B I/O signal/control Conducted RF IEC 61000‐4‐6 150 kHz to 80 MHz at 3 Vrms A Specification limit = ±1% of span 1. A = No degradation during testing. B = Temporary degradation during testing, but is self‐recovering. 3 Product Bulletin 62.1:3660 3660 and 3661 Positioners May 2012 D101407X012 Figure 1. Mounting Configurations (see table 3 for Positioner Action and Signals) OUTPUT OUTPUT INPUT AIR SUPPLY SIGNAL 2 1 AIR SUPPLY INPUT SIGNAL PILOT SHAFT FEEDBACK PLATE ACTUATOR: AIR‐TO‐RETRACT ACTUATOR: AIR‐TO‐RETRACT POSITIONER ACTION: REVERSE POSITIONER ACTION: DIRECT (INCREASING INPUT SIGNAL DECREASES (INCREASING INPUT SIGNAL INCREASES OUTPUT PRESSURE TO ACTUATOR) OUTPUT PRESSURE TO ACTUATOR) OUTPUT OUTPUT INPUT SIGNAL AIR SUPPLY 2 1 AIR SUPPLY INPUT SIGNAL ACTUATOR: AIR‐TO‐EXTEND ACTUATOR: AIR‐TO‐EXTEND POSITIONER ACTION: DIRECT POSITIONER ACTION: REVERSE (INCREASING INPUT SIGNAL INCREASES (INCREASING INPUT SIGNAL DECREASES OUTPUT PRESSURE TO ACTUATOR) OUTPUT PRESSURE TO ACTUATOR) Notes: 1 When mounting on Baumann actuators, install feedback plate so lip is up. Install feedback lever arm assembly so pilot shaft is on top of the feedback plate. 2 When mounting on Baumann actuators, install feedback plate so lip is down. Install feedback lever arm assembly so pilot shaft is underneath the feedback plate. 17B9106‐B 17B9105‐B 38B0195‐B A4035‐2 4 Product Bulletin 3660 and 3661 Positioners 62.1:3660 May 2012 D101407X012 Table 2. Standard and Split Range Capabilities POSITIONER 3660 3660 3661 0.2 to 1.0 bar 0.4 to 2.0 bar (3 to 15 Psig) (6 to 30 Psig) Split 4 to 20 mA DC Input Signal Input Signal Input Signal Bar Psig Psig Bar One Way 0.2 to 1.0 3 to 15 6 to 30 0.4 to 2.0 4 to 20 1:1 Two Way 0.2 to 0.6 3 to 9 6 to 18 0.4 to 1.2 4 to 12 2:1 0.6 to 1.0 9 to 15 18 to 30 1.2 to 2.0 12 to 20 0.2 to 0.5 3 to 7 6 to 14 0.4 to 1.0 4 to 9.33 Three Way 0.5 to 0.8 7 to 11 14 to 22 1.0 to 1.6 9.33 to 14.66 3:1 0.8 to 1.0 11 to 15 22 to 30 1.6 to 2.0 14.66 to 20 0.2 to 0.4 3 to 6 6 to 12 0.4 to 0.8 4 to 8 0.4 to 0.6 6 to 9 12 to 18 0.8 to 1.2 8 to 12 Four Way 0.6 to 0.8 9 to 12 18 to 24 1.2 to 1.6 12 to 16 4:1 0.8 to 1.0 12 to 15 24 to 30 1.6 to 2.0 16 to 20 Table 3. Positioner Input Signal, Action, and Output Table 4. Construction Materials Signal MATERIAL PART Input Signal Positioner Output Standard Optional Direct Case and Cover Aluminum --- 0.2 to 1.0 bar (3 to 15 psig) Feedback Lever Stainless Steel --- 0.4 to 2.0 bar (6 to 30 psig) Assembly 4 to 20 mA Range Spring N09902 --- Up to 6.2 bar Reverse (90 psig) Input Module ECO 1.0 to 0.2 bar (15 to 3 psig) Diaphragm Relay EPDM 2.0 to 0.4 bar (30 to 6 psig) --- Gasket Silicon Rubber 20 to 4 mA O‐Ring Ethylene/Propylene For split range signal refer to table 2 Nozzle Aluminum --- Flapper Aluminum --- Aluminum and Relay Metal Parts --- Stainless Steel Gauges Brass and Plastic --- All Fasteners Stainless Steel Exterior Tubing Copper/Brass Stainless Steel and Fitting Connectors for Stainless Steel or Brass --- Diagnostic Testing 5 Product Bulletin 62.1:3660 3660 and 3661 Positioners May 2012 D101407X012 once again in equilibrium but at a higher instrument Principle of Operation pressure, a slightly different flapper position, and a new actuator stem position. Refer to figure 2 for operational schematic. A decrease in instrument pressure decreases nozzle The instrument pressure acts on the input module, pressure, which allows the relay to bleed off actuator which controls the flapper‐nozzle system of the relay. loading pressure. Supply pressure is applied to the relay, and the output pressure of the relay is supplied to the control valve actuator. Operation of a reverse‐acting positioner is similar except that the flapper position is reversed from that shown in figure 2. The reversed position uses the For a direct‐acting positioner, increases in instrument alternate flapper pivot point so that increases in pressure causes the input module to pivot the beam. instrument pressure rotate the flapper away from the The beam pivots the flapper and restricts the nozzle. nozzle to reduce nozzle pressure. The nozzle pressure increases and causes the relay assembly to increase output pressure to the actuator. With a direct‐acting actuator, this increased pressure With a 3661 electro‐pneumatic positioner, the moves the actuator stem downward. Stem movement electro‐pneumatic converter provides a 0.2 to 1.0 bar is fed back to the beam by means of a feedback lever (3 to 15 psig) output pressure proportional to the and range spring, which cause the flapper to pivot 4‐20 mA input signal. The 0.2 to 1.0 bar (3 to 15 psig) slightly away from the nozzle to prevent any further output pressure becomes the input signal pressure to increases in relay output pressure. The positioner is the input module. FLAPPER Figure 2. Operational Schematic DIRECT ACTING PIVOT NOZZLE REVERSE ACTING PIVOT OUTPUT SECTION A‐A RANGE RELAY SPRING A GAIN ADJ A SUPPLY RANGE RELAY SPRING PILOT GAIN ADJ A PIVOT SHAFT BEAM FEEDBACK FEEDBACK LEVER PLATE BEAM A INPUT SUPPLY MODULE PIVOT FISHER 3660 POSITIONER INPUT MODULE I/P CONVERTER INPUT SIGNAL 31B3960‐C B2152‐4 FISHER 3661 POSITIONER 6 Product Bulletin 3660 and 3661 Positioners 62.1:3660 May 2012 D101407X012 Figure 3. Positioner Dimensions and Connections (see table 5 for the X dimension) ACTUATOR POST CENTERLINE 191.2 67.5 34.32 DIM X ACTUATOR (7.53) (2.66) (1.35) CENTERLINE 49.2 93 4 9 0.5 1/4 NPT (1.94) (3.66) (1.93) (0.02) SUPPLY CONNECTION 30 (1.18) 122.3 30 (4.81) (1.18) 21.5 (0.85) 1/4 NPT 1/4 NPT OUTPUT INSTRUMENT CONNECTION CONNECTION ACTUATOR POST CENTERLINE 142.2 67.5 34.32 DIM X (5.60) (2.66) (1.35) 49.2 93 27.5 1/4 NPT (1.94) ACTUATOR (3.66) (1.08) SUPPLY CENTERLINE CONNECTION 30 (1.18) 122.3 30 (4.81) (1.18) 21.5 (0.85) 1/2 NPT 1/4 NPT OUTPUT 3661 I/P 1/4 NPT ONLY CONNECTION INSTRUMENT CONNECTION mm 31B3959‐C C0686‐3 (INCH) 7 Product Bulletin 62.1:3660 3660 and 3661 Positioners May 2012 D101407X012 Table 5. Dimension X for figure 3 Ordering Information ACTUATOR CENTERLINE TO POSITIONER X Type Size mm Inch 30  92.2 3.63 Application 34 95.3 3.75 657/667 40 104.9 4.13 45/46 108.0 4.25 When ordering, specify: 50/60 128.5 5.06 225 86.0 3.39 1250 1. Type number 450 86.0 3.39 675 110.0 4.33 1.21 83.5 3.29 2. Input signal range: pneumatic or milliampere 3024S 1.31 87.5 3.44 1.41 87.5 3.44 2 16in 53.8 2.12 2 32in 71.4 2.81 3. Maximum supply pressure available Baumann 2 54in 71.4 2.81 2 70in 71.4 2.81 4. Valve plug travel: actuator type and size 225 81.0 3.19 GX 750 81.0 3.19 1200 81.0 3.19 5. Stroking time requirements, if critical 6. Ambient temperature range Installation 7. Direct or reverse acting The supply pressure medium should be clean, dry, filtered air. If the supply source is capable of exceeding 8. Supply pressure regulator, gauges, and bypass, if the maximum actuator operating pressure or required positioner supply pressure, appropriate steps must be taken during installation to protect the positioner and all connected equipment against overpressure. 9. Hazardous area classification (3661) Overall dimensions and connections are shown in figure 3 and table 5. 10. Connectors for diagnostic testing, if required 8 Product Bulletin 3660 and 3661 Positioners 62.1:3660 May 2012 D101407X012 Figure 4. FlowScanner Diagnostic System Connections BODY PROTECTOR BODY PIPE BUSHING 4 IN PIPE NIPPLE PIPE TEE 3660 POSITIONER 12B8052‐A A6084 1 IN PIPE NIPPLE FISHER 3660 POSITIONER BODY PROTECTOR 1 IN PIPE NIPPLE BODY PIPE BUSHING 4 IN PIPE NIPPLE PIPE NIPPLE 3661 POSITIONER 12B8053‐A A6085 FISHER 3661 POSITIONER 9 Product Bulletin 62.1:3660 3660 and 3661 Positioners May 2012 D101407X012 Table 6. Fisher 3661 Positioner Hazardous Area Classifications—CSA (Canada) Certification Body Certification Obtained Entity Rating Temperature Code Enclosure Rating Vmax = 30 VDC Intrinsically Safe Imax = 150 mA T4 (Tamb ≤ 82°C) Ex ia IIC T4/T5/T6 per drawing GE28591 Pi = 1.25 W T5 (Tamb ≤ 62°C) CSA Type 3 Encl. Class I, II Division 1 GP A,B,C,D,E,F,G Ci = 0 nF T6 (Tamb ≤ 47°C) T4/T5/T6 per drawing GE28591 Li = 0 mH CSA (1) Type n Zone - - - T6 (Tamb ≤ 82°C) CSA Type 3 Encl. Ex nA IIC T6 Class I Division 2 GP A,B,C,D T6 - - - T6 (Tamb ≤ 82°C) CSA Type 3 Encl. 1. Must be installed in a suitable IP5x enclosure. Table 7. Fisher 3661 Positioner Hazardous Area Classifications —FM (United States) Certification Body Certification Obtained Entity Rating Temperature Code Enclosure Rating Intrinsically Safe Vmax = 30 VDC Class I Zone 0 AEx ia IIC T4/T5/T6 per Imax = 150 mA T4 (Tamb ≤ 82°C) drawing GE28590 Pi = 1.25 W T5 (Tamb ≤ 62°C) NEMA 3, IP54 Class I, II, III Division 1 GP A,B,C,D,E, F,G Ci = 0 nF T6 (Tamb ≤ 47°C) T4/T5/T6 per drawing GE28590 Li = 0 mH FM Type n - - - T5 (Tamb ≤ 82°C) NEMA 3, IP54 Class I Zone 2 AEx nA IIC T5 Class I Division 2, GP A,B,C,D T5 - - - T5 (Tamb ≤ 82°C) NEMA 3, IP54 Class II, III Division 2, GP F,G T5 Table 8. Fisher 3661 Positioner Hazardous Area Classifications—ATEX Certificate Certification Obtained Entity Rating Temperature Code Enclosure Rating Ui = 30 VDC II 1 G T4 (Tamb ≤ 82°C) Ii = 150 mA Intrinsically Safe T5 (Tamb ≤ 62°C) Pi = 1.25 W IP44 Gas Ci = 0 nF T6 (Tamb ≤ 47°C) Ex ia IIC T4/T5/T6 Li = 0 mH ATEX II 3 G (1) Type n - - - T6 (Tamb ≤ 82°C) IP44 Gas Ex nA IIC T6 1. Special precautions are required during installation. See 3660 and 3661 Instruction Manual (D101402X012). Table 9. Fisher 3661 Positioner Hazardous Area Classifications—IECEx Certificate Certification Obtained Entity Rating Temperature Code Enclosure Rating Ui = 30 VDC Intrinsically Safe Ii = 150 mA T4 (Tamb ≤ 82°C) Gas Pi = 1.25 W T5 (Tamb ≤ 62°C) IP44 Ex ia IIC T4/T5/T6 Ci = 0 nF T6 (Tamb ≤ 47°C) IECEx Li = 0 mH Type n Gas - - - T6 (Tamb ≤ 82°C) IP44 Ex nA II T6 10 Product Bulletin 3660 and 3661 Positioners 62.1:3660 May 2012 D101407X012 11 Product Bulletin 62.1:3660 3660 and 3661 Positioners May 2012 D101407X012 Neither Emerson, Emerson Process Management, 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, Baumann, and FlowScanner are marks owned by one of the companies in the Emerson Process Management business unit of Emerson Electric Co. Emerson Process Management, 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 Process Management Marshalltown, Iowa 50158 USA Sorocaba, 18087 Brazil Chatham, Kent ME4 4QZ UK Dubai, United Arab Emirates Singapore 128461 Singapore www.Fisher.com � 1987, 2012 Fisher Controls International LLC. All rights reserved. 12