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  • POSITIONER FISHER 3582/ 3582i

POSITIONER FISHER 3582/ 3582i

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10 / 12 / 2019
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Detail POSITIONER FISHER 3582/ 3582i

Fisher 3582 pneumatic valve positioners, shown in figure 1, and 3582i electro-pneumatic valve positioners, shown in figure 2, are used with diaphragm-actuated, sliding-stem control valve assemblies. The pneumatic valve positioners receive a pneumatic input signal from a control device and modulate the supply pressure to the control valve actuator, providing an accurate valve stem position that is proportional to the pneumatic input signal. 3582NS positioners are designed for nuclear power applications. The 3582NS construction includes materials that provide superior performance at elevated temperature and radiation levels. The O-rings are EPDM ( ethylene propylene) and the diaphragms are EPDM/ meta-aramid. EPDM demonstrates superior temperature capability and shelf life over nitrile. Note Use a clean, dry, oil-free air supply with instruments containing EPDM components. EPDM is subject to degradation when exposed to petroleum-based lubricants. The meta-aramid diaphragm fabric demonstrates improved strength retention at elevated temperature and radiation conditions. Under the 10CFR50, Appendix B, quality assurance program, the 3582NS positioner is qualified commercial grade dedicated. These can be supplied as 10CFR, Part 21 items. The 3582i electro-pneumatic valve positioner consists of a Fisher 582i electro-pneumatic converter installed on a 3582 pneumatic valve positioner. The 3582i provides an accurate valve stem position that is proportional to a DC current input signal. The 582i electro-pneumatic converter, shown in figure 5, is a modular unit that can be installed at the factory or in the field. The converter receives a DC current input signal and provides a proportional pneumatic output signal through a nozzle/ flapper arrangement. The pneumatic output signal provides the input signal to the pneumatic positioner, eliminating the need for a remote mounted transducer. Note Upgrading an existing 3582 positioner by field installation of a 582i electro-pneumatic converter may require changing the existing positioner mounting and the input signal range. Contact your Emerson Process Management sales office when planning an upgrade. Close Section Above Specifications Note: Specifications for 3582 positioners include 3582A, 3582C, 3582D, 3582G, and 3582NS unless otherwise indicated Available Configurations Refer to Type Number Description Input Signal 3582 0.2 to 1.0 bar ( 3 to 15 psig) , 0.4 to 2.0 bar ( 6 to 30 psig) , or split range, see table 2. 3582i 4-20 mA DC constant current with 30 VDC maximum compliance voltage, can be split range, see table 2. Equivalent Circuit for 3582i 120 ohms shunted by three 5.6-volt zener diodes, see figure 3 Output Signal Type: Pneumatic pressure as required by actuator up to 95 percent of maximum supply Action: Field-reversible between direct and reverse within the pneumatic valve positioner Supply Pressure( 1) Recommended: 0.3 bar ( 5 psi) above actuator requirement Maximum: 3.4 bar ( 50 psig) or pressure rating of actuator, whichever is lower Supply Medium Air or natural gas( 2) The 3582i positioner is not approved for use with natural gas as the supply medium Maximum Input Bellows Pressure Rating( 1) 2.4 bar ( 35 psig) Maximum Steady-State Air Consumption( 3) 3582: 1.4 bar ( 20 psig) Supply: 0.38 normal m3/ hr ( 14.0 scfh) 2.0 bar ( 30 psig) Supply: 0.48 normal m3/ hr ( 18.0 scfh) 2.4 bar ( 35 psig) Supply: 0.54 normal m3/ hr ( 20.0 scfh) 3582i: 1.4 bar ( 20 psig) Supply: 0.46 normal m3/ hr ( 17.2 scfh) 2.0 bar ( 30 psig) Supply: 0.57 normal m3/ hr ( 21.4 scfh) 2.4 bar ( 35 psig) Supply: 0.64 normal m3/ hr ( 23.8 scfh) Maximum Supply Air Demand( 3) 1.4 bar ( 20 psig) Supply: 4.4 normal m3/ hr ( 164.5 scfh) 2.0 bar ( 30 psig) Supply: 6.7 normal m3/ hr ( 248.5 scfh) 2.4 bar ( 35 psig) Supply: 7.7 normal m3/ hr ( 285.5 scfh) Performance 3582 Independent Linearity: Â ± 1 percent of output signal span Hysteresis: 0.5 percent of span 3582i Independent Linearity: Â ± 2 percent of output signal span Hysteresis: 0.6 percent of span Electromagnetic Compliance for 582i electro-magnetic converter Meets EN 61326-1 ( First Edition) â € ƒ Immunityâ € ” Industrial locations per Table 2 of â € ƒ â € ƒ the EN 61326-1 standard. Performance is â € ƒ â € ƒ shown in table 1 below. â € ƒ Emissionsâ € ” Class A â € ƒ â € ƒ ISM equipment rating: Group 1, Class A Note: Electromagnetic Compatibility also applies to the 3582i positioner. 3582 and 3582i. Open Loop Gain ( Output Signal) : 100 in the range of 0.2 to 1.0 bar ( 3 to 15 psig) 55 in the range of 0.4 to 2.0 bar ( 6 to 30 psig) Operating Influences Supply Pressure, For 3582: Valve travel changes less than 1.67 percent per bar ( 0.25 percent per 2 psi) change in supply pressure Supply Pressure, For 3582i: Valve travel changes less than 3.62 percent per bar ( 1.5 percent per 2 psi) change in supply pressure Operative Temperature Limits( 1) Standard Construction3582 and 3582i -40 to 71Â ° C ( -40 to 160Â ° F) 3582NS: -40 to 82Â ° C ( -40 to 180Â ° F) with EPDM elastomers High-Temperature Construction( 4) 3582A and C Only: -18 to 104Â ° C ( 0 to 220Â ° F) without gauges Electrical Classification for 582i CSAâ € ” Intrinsically Safe, Explosion proof, Type n Dust-Ignition proof, DIV 2, FMâ € ” Intrinsically Safe, Explosion proof, Type n, Non-incendive, Dust-Ignition proof, ATEXâ € ” Intrinsically Safe & Dust, Type n & Dust, Flameproof & Dust IECExâ € ” Intrinsically Safe, Type n, Flameproof ( Gas Atmospheres Only) NEPSIâ € ” Intrinsically Safe, Flameproof INMETROâ € ” Intrinsically Safe, Flameproof Refer to tables 5, 6, 7, 8, 9, and 10 for additional information Note: These classifications also apply to the 3582i positioner Housing Classification for 582i CSAâ € ” Type 3 Encl. FMâ € ” NEMA 3, IP54 ATEXâ € ” IP64 IECExâ € ” IP54 Mount instrument with vent on the side or the bottom if weatherproofing is a concern. Note: These classifications also apply to the 3582i positioner Hazardous Area Classifications for 3582 3582 valve positioners comply with the requirements of ATEX Group II Category 2 Gas and Dust Note: This rating does not apply to the 3582i positioner Construction Materials Refer to table 3 Pressure Gauges 40 mm ( 1.5 inch) diameter with plastic case and brass connection triple scale ( PSI, MPa, and bar) or dual scale ( PSI and kg/ cm2) Pressure Connections 1/ 4 NPT internal Electrical Connection for 3582i 1/ 2-14 NPT conduit connection Maximum Valve Stem Travel 105 mm ( 4.125 inches) ; adjustable to obtain lesser travel with standard input signal Characterized Cams See characterized cams section Approximate Weight 3582: 2.5 kg ( 5-1/ 2 pounds) 3582i: 3.6 kg ( 8 pounds) Options Instrument, output, and supply pressure gauges; automotive tire valves; or pipe plugs ( see Type Number Description section) Bypass valve ( only for direct-acting, 3582 positioners using a full input signal range) Characterized cams B and C Connectors for diagnostic testing High vibration NOTE: Specialized instrument terms are defined in ANSI/ ISA Standard 51.1 - Process Instrument Terminology. 1. The pressure and temperature limits in this document and any applicable standard or code limitation should not be exceeded. 2. Natural gas should contain no more than 20 ppm of H2S. 3. Normal m3/ hr--normal cubic meters per hour ( 0Â ° C and 1.01325 bar absolute) ; Scfh--standard cubic feet per hour ( 60Â ° F and 14.7 psia) . 4. Not available with bypass or pressure gauges. Close Section Above Features * Versatile Modular Designâ € ” 3582 positioners can be upgraded in the field to an electro-pneumatic 3582i by replacing the gauge block with the 582i electro-pneumatic converter ( figure 5) assembly. The converter assembly attaches to the positioner case, providing a cost-effective conversion. Thus, in the field, 3582 positioners can be upgraded from pneumatic to electronic to match new control strategies. Note Upgrading existing 3582 positioners by field installation of a 582i electro-pneumatic converter may require changing the existing positioner mounting and the input signal range. Contact your Emerson Process Management sales office when planning an upgrade. * Accurate, Efficient, Vibration-Resistant Operationâ € ” 3582 and 3582i positioners offer a field-proven positioner design which is accurate, fast-responding and able to withstand the vibrations of most plant environments. Low steady-state air consumption contributes to efficient operation. * Rangeabilityâ € ” Both 3582 and 3582i positioners provide split range capabilities. The range of the adjustable zero and span permits the use of all standard input signals including split ranges. * Simplified Spare Parts Inventoriesâ € ” Because units from one positioner family can be used in a variety of control applications, basic spare parts inventory requirements are simplified and fewer spare parts are needed to support a plant-wide positioner applications base. * Easy Positioner Adjustmentsâ € ” With the cover removed, as shown in figure 4, zero and span adjustments are easily accessible and can be made with a screw driver. * Stable Operationâ € ” Changes in supply pressure and valve load have minimal effect on positioner operation. * Corrosion Resistanceâ € ” Case, components, and gasket materials withstand harsh environments. Positioner bleed air purges internal parts for additional protection. * Field Reversibleâ € ” Simple adjustments permit switching between direct and reverse action. * Control Valve Diagnostic Testing Capabilityâ € ” To support diagnostic testing of valve/ actuator/ positioner packages with the FlowScannerTM valve diagnostic system, connectors, piping, and other hardware can be installed between the 3582 or 3582i and the actuator. Close Section Above Type Number Description 3582â € ” Pneumatic valve positioner with bypass and instrument, supply, and output pressure gauges. 3582Aâ € ” Pneumatic valve positioner without bypass and without pressure gauges. 3582Câ € ” Pneumatic valve positioner without bypass and with automotive tire valves instead of pressure gauges. 3582Dâ € ” Pneumatic valve positioner with bypass and with automotive tire valves instead of pressure gauges. 3582Gâ € ” Pneumatic valve positioner without bypass and with instrument, supply, and output pressure gauges. 3582NSâ € ” Pneumatic valve positioner for nuclear service applications with or without bypass and with automotive tire valves instead of pressure gauges. 3582iâ € ” Electro-pneumatic valve positioner without bypass; with 582i converter; and with: supply and output pressure gauges, automotive tire valves, or pipe plugs. 582iâ € ” Electro-pneumatic converter with: supply and output pressure gauges, automotive tire valves, or pipe plugs. Used for conversion of a 4-20 milliampere input signal to a 0.2 to 1.0 bar ( 3 to 15 psig) input signal for the pneumatic valve positioner. 83Lâ € ” Pneumatic relay included as part of both 3582 and 3582i positioners. Close Section Above Principle of Operation 3582 positioners ( 3582, 3582NS and 3582A, C, D, and G pneumatic valve positioners) accept a pneumatic input signal from a control device. The operational schematic in figure 6 depicts the direct-acting pneumatic valve positioner. Supply pressure is connected to the 83L relay. A fixed restriction in the relay limits flow to the nozzle so that when the flapper is not restricting the nozzle, air can bleed out faster than it is being supplied. The input signal from the control device is connected to the bellows. When the input signal increases, the bellows expands and moves the beam. The beam pivots about the input axis moving the flapper closer to the nozzle. The nozzle pressure increases and, through relay action, increases the output pressure to the diaphragm actuator. The increased output pressure to the actuator causes the actuator stem to move downward. Stem movement is fed back to the beam by means of a cam. As the cam rotates, the beam pivots about the feedback axis to move the flapper slightly away from the nozzle. The nozzle pressure decreases and reduces the output pressure to the actuator. Stem movement continues, backing the flapper away from the nozzle, until equilibrium is reached. When the input signal decreases, the bellows contracts ( aided by an internal range spring) and the beam pivots about the input axis to move the flapper away from the nozzle. Nozzle pressure decreases and the relay permits the release of diaphragm casing pressure to atmosphere. The actuator stem moves upward. Through the cam, stem movement is fed back to the beam to reposition the flapper closer to the nozzle. When equilibrium conditions are obtained, stem movement stops and the flapper is positioned to prevent any further decrease in diaphragm case pressure. The principle of operation for reverse acting units is similar except that as the input signal increases, the diaphragm casing pressure is decreased. Conversely, a decreasing input signal causes an increase in the pressure to the diaphragm casing. As shown in figure 7, the 3582i electro-pneumatic positioner accepts a DC current input signal provided to the 582i electro-pneumatic converter attached to the positioner. The 582i provides the pneumatic input signal pressure used by the pneumatic positioner. Close Section Above Characterized Cams Three cams are available for 3582 valve positioners. A linear cam ( cam A) is supplied with the unit. Two characterized cams ( cams B and C) are available as options. Figure 8 shows the resultant stem travel due to an incremental instrument pressure change for each cam. When the linear cam is the operating cam, there is a linear relationship between an incremental input signal change and valve travel, and the flow characteristic of the valve is that of the control valve. When either characterized cam is the operating cam, the relationship between an incremental input signal change and valve travel changes thereby modifying the valve flow characteristics. Figure 9 shows how the characteristic is modified for an equal percentage valve. Figure 10 shows how the characteristic is modified for a linear valve. Because 3582 positioners mount the same way on either direct-acting or reverse-acting diaphragm actuators, the cams are reversible. Close Section Above Installation Figure 11 shows a typical positioner mounting for a direct- or reverse-acting actuator. Positioner overall dimensions and connections are shown in figure 11 and table 4. Close Section Above Ordering Information When ordering, please specify the product application and construction: Application 1. Positioner type number. When ordering a 3582i electro-pneumatic positioner, specify: supply and output pressure gauges, automotive tire valves, or pipe plugs. 2. Maximum supply pressure available 3. Direct or reverse acting 4. Valve stroke in inches; actuator type and size 5. Initial cam set-up ( cam A, B, or C) 6. Input signal 7. Supply pressure regulator and test pressure gauge. 8. Connectors for diagnostic testing, if required. Construction Refer to the specifications. Carefully review each specification; indicate your choice whenever a selection is offered. Note Neither Emerson, Emerson Process Management, nor any of their affiliated entities assumes responsibility for the section, use, or maintenance of any product. Responsibility for the selection, use, and maintenance of any product remains with the purchaser and end user. Close Section Above
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