Emerson 289RC Instruction Manual
Contents
1. 49 0 38823 31 0 The Emerson logo is a trademark and service mark of Emerson Electric Co All other marks are the property of their prospective owners Fisher is a mark owned by Fisher Controls Inc a business of Emerson Process Management 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 We reserve the right to modify or improve the designs or specifications of such products at any time without notice Emerson Process Management does not assume responsibility for the selection use or maintenance of any product Responsibility for proper selection use and maintenance of any Emerson Process Management product remains solely with the purchaser r S EMERSON Proce a Emerson Process Management Regulator Technologies Inc 1998 2010 All Rights Reserved2. Body Size 1 NPT Inlet and Outlet Connections Inlet Connect to the outlet via a bypass valve adjustable from 0 to 0 3 C Piping is normally configured by the customer See Figure 3 Signal 1 8 NPT standard Outlet 1 NPT Maximum Pressure 125 psig 8 6 bar Input to Output Pressure Ratio Fixed at 1 to 1 Dead Band 0 5 psid 0 034 bar d pressure across the bypass valve Maximum Exhaust Flow Capacity Cy 22 System capacity limited by the smallest restriction between the exhaust valve and pressure source actuator Temperature Capabilities 20 to 180 F 29 to 82 C Approximate Weight 4 pounds 2 kg 1 The pressure temperature limits in this Instruction Manual and any applicable standard or code limitation should not be exceeded Principle of Operation The Type 289RC 1 NPT outlet port is connected directly to a spring return actuator and the 1 8 NPT inlet connection on the spring case is connected to the controlling instrument I P transducer controller positioner etc The assembly of the Type 289RC to a control valve requires the inlet and outlet chambers be connected via a bypass valve The bypass valve should be installed between the two 1 8 NPT connections on the Type 289RC or any other convenient location per the customer s preference The Type 289RC exhaust booster has a factory set opening threshold of 0 5 psid 0 03 bar d The adjustment screw in the booster body is n
3. 1E564843122 41 Spacer Aluminum 17B3185X012 11 Hex Nut 1D667728982 42 Spacer Ring Aluminum 27B3187X012 13 Snap Ring 13A9938X012 43 Diaphragm Head Zinc plated 15 Gasket Nitrile NBR 13A9929X012 Carbon steel 2 required 1P901425062 16 Nameplate 44 Screw Seal 1V205699012 17 Lower Spring Guide Zinc plated carbon steel 1D666625072 45 Washer 1F826709012 18 Pitot Tube or Stem Aluminum 17B3186X012 46 Gasket 1F826804022 20 O Ring Nitrile NBR 1F269206992 Recommended spare part Industrial Regulators Emerson Process Management Regulator Technologies Inc USA Headquarters McKinney Texas 75069 1872 USA Tel 1 800 558 5853 Outside U S 1 972 548 3574 Asia Pacific Shanghai China 201206 Tel 86 21 2892 9000 Europe Bologna Italy 40013 Tel 39 051 4190611 Middle East and Africa Dubai United Arab Emirates Tel 971 4811 8100 For further information visit www fisherregulators com Natural Gas Technologies Emerson Process Management Regulator Technologies Inc USA Headquarters McKinney Texas 75069 1872 USA Tel 1 800 558 5853 Outside U S 1 972 548 3574 Asia Pacific Singapore Singapore 128461 Tel 65 6777 8211 Europe Bologna Italy 40013 Tel 39 051 4190611 Gallardon France 28320 Tel 33 0 2 37 33 47 00 TESCOM Emerson Process Management Tescom Corporation USA Headquarters Elk River Minnesota 55330 2445 USA Tel 1 763 241 3238 Europe Selmsdorf Germany 23923 Tel
4. 0 3 0 4 0 5 TIME IN SECONDS Figure 4 Typical Response Curve for Type 657 Size 45 Actuator with Type 289RC Exhaust Booster Using a Type 546 I P Transducer with 4 to 20 mA input signal 6 to 30 psig 0 41 to 2 1 bar output and 35 psig 2 4 bar supply pressure a Type 657 or 645 Valve Actuator with 10 to 26 psig 0 69 to 1 8 bar setting and 0 to 1 5 inches 0 to 38 mm of travel and a Type 289RC Exhaust Booster with a bypass valve c Assemble the valve seat holder and O ring assembly keys 20 21 and 22 by hand prior to placing it on the stem d Do not tighten the hex nut 24 until step 11 Place the machine screws key 29 in the stem guide assembly key 31 position the diaphragm valve assembly in the valve body key 1 and tighten screws key 29 to 15 to 20 inch pounds 1 7 to 2 3 Nem Position the spacer ring key 42 between the diaphragms and align all holes with at least three machine screws key 8 turned partially into the body While holding the stem key 18 through the exhaust port in the bottom of the body tighten the hex nut key 24 to 30 to 35 inch pounds 3 4 to 3 9 Nem Hold the diaphragm head key 43 while tightening the hex nut to be sure it does not turn or move Remove the aligning machine screws key 8 13 14 15 16 Place the spring key 7 firmly around the lower spring guide key 17 and install the upper spring seat key 4 Orient the spring case key 2 as required
5. Instruction Manual Type 289RC Form 5464 July 2010 Type 289RC Exhaust Booster W7313 W7322 Figure 1 Type 289RC Exhaust Booster Introduction control valve in response to sudden pressure changes from pneumatic output devices such as solenoid valves or pneumatic instruments By carefully Scope of the Manual matching the instrument and actuator performance with the bypass valve adjustment the Type 289RC reduces overshoot and related problems while allowing very fast positioning response to system requirements i e compressor surge control The one way throttling action offers superior control with exceptional stability and the specially designed boosting system provides high flow rates with minimum buildup This manual describes the principles of operation and provides installation instructions and a parts list for the Type 289RC exhaust booster Product Description The Type 289RC high capacity exhaust booster provides release control RC control pressure to actuators other pneumatic devices and related Specifications systems that require rapid response such as surge Specifications for the Type 289RC exhaust booster are valves or recycle valves on compressors This listed on page 2 Specifications for a given exhaust actuators to speed up the proportional operation of a stamped on the nameplate J S FISHER EMERSON n A Viane Pre D102588X012 Type 289RC Specifications
6. as been changed Use the following procedure to calibrate a Type 289RC exhaust booster 1 Connect the assembled Type 289RC to two independent pressure sources P and P with pressure gauges as shown in Figure 3 2 Place a plug in the 1 8 NPT body connection 3 Set P and P at 6 psig 0 41 bar 4 Screw the adjusting screw in all the way 5 Adjust P to 5 3 psig 0 37 bar 4 Turn the unit upside down and put just enough water into the exhaust port to cover the sealing surface Turn the adjusting screw out until the first bubble appears at the exhaust port 5 Lock adjusting screw in place Maintenance Type 289RC exhaust boosters are subject to normal wear and should be inspected periodically The inspection frequency and replacement of parts depends on the severity of the service conditions Maintenance requires taking the exhaust booster out of service To avoid personal injury or equipment damage release or bypass any pressure in the exhaust booster before beginning required maintenance Elastomer Replacement Key numbers refer to Figure 5 1 Loosen the adjusting screw key 6 and remove the eight machine screws key 8 from the spring case key 2 2 Remove the spring case key 2 3 Remove the spring key 7 and upper spring seat key 4 4 Remove the spacer ring key 42 The diaphragms may stick to the spacer 5 Remove the two machine screws key 29 and lift out the diaphragm valve ass
7. embly Lift up the valve assembly for more screwdriver clearance Type 289RC PRESSURE SOURCE WITH GAUGE PLUG FOR PRESSURE TEST SOURCE WITH GAUGE A7219 EXHAUST PORT BUBBLE MEASUREMENT Figure 3 Type 289RC Exhaust Booster Calibration Connection 6 Use a 7 16 inch 11 mm wrench to remove the 7 Remove and discard all non metallic parts hex nut key 24 Then remove the parts in order spring guide key 17 first diaphragm head key 43 with curved side facing the diaphragm diaphragm key 5 second diaphragm head key 43 with curved side facing the diaphragm spacer key 41 Position the stem key 18 to accept all parts Replace all non metallic parts with new parts Then place parts on the stem key 18 in reverse order of step 6 Make sure to third diaphragm head key 43 with curved side a Lubricate all O rings with a light coating of facing the diaphragm second diaphragm key 5 silicone grease stem guide key 31 spacer key 23 O ring b Assemble both diaphragms so the spring key 30 O ring holder key 21 O ring key 20 sides marked on diaphragm face toward O ring holder key 22 and O ring key 30 the spring Type 289RC 100 PERCENT OF CURRENT 4 TO 20 mA PERCENT OF ACTUATOR TRAVEL 1 5 INCH 38 mm 100 A7218 10 11 12 110 0 320 SECONDS 85 FULL STROKE INPUT SIGNAL ACTUATOR TRAVEL 0 080 SECONDS OF DEAD TIME 0 1 10 0 1 0 2
8. ot field adjustable The bypass valve is adjusted on the control valve system to account for differences in various instrument and actuator performance characteristics Once adjusted the control valve action is as described in the following paragraph As the output pressure of the instrument increases the actuator moves the valve normally since the exhaust booster cannot be actuated with an increasing signal When the output pressure of the instrument decreases the actuator will move the valve until the rate of change of the output pressure develops 0 5 psid 0 034 bar d across the bypass valve When this occurs the pressure differential in the Type 289RC causes the exhaust booster valve to begin opening and begin reducing the pressure in the actuator The greater the differential pressure develops across the bypass valve the further the exhaust booster will open The booster exhaust valve closes as the pressure difference between the instrument and actuator decreases Installation The schematic on page 3 Figure 2 shows the typical Type 289RC installation Connect the instrument supply to the 1 8 NPT spring case inlet and the actuator to the 1 NPT side port outlet The inlet and outlet must be connected via an adjustable bypass valve Flow through the exhaust valve must be in the same direction as the flow arrow on the body Note Mounting is recommended with the outlet exhaust connection pointing down If it is necessary to
9. pipe this outlet away from the area remove the outlet screen Protect the outlet exhaust connection against the entrance of rain snow insects or any other foreign material that may block the outlet or affect the opening and closing of the valve Type 289RC lt METERED FLOW Xd FREE FLOW gt ADJUSTABLE BYPASS VALVE 0 TO 0 3 Cy TYPE 289RC INSTRUMENT SUPPLY 45 TO 125 PSIG 3 1 TO 8 6 bar 4T020mA A7208 Figure 2 Typical Type 289RC Exhaust Booster and Control Valve Installation Type 289RC Operating Information Never operate this system with the bypass valve closed Note The Type 289RC requires no adjustment The adjusting screw key 6 is factory set and must not be changed In the operating configuration Figure 2 the bypass valve may require adjustment for optimum actuator response Always begin with the bypass valve open If opened enough the instrument signal will drive the actuator and the system will respond as if the exhaust booster was not installed As the bypass valve is closed the actuator response will be faster only in the exhaust mode Response in the filling direction will remain unchanged If the control valve tends to overshoot the desired position the bypass valve has been closed too far Calibration The exhaust booster s calibration is factory set This unit should not require calibration unless the adjusting screw has been loosened or the spring h
10. while carefully positioning over the spring and seat Insert and tighten the machine screws key 8 to 40 to 45 inch pounds 4 5 to 5 1 Nem using a cross tightening process Recalibrate unit using Calibration procedure on page 4 Parts Ordering When corresponding with your local Sales Office about this equipment always reference the equipment serial number stamped on the spring case key 2 When ordering replacement parts specify the complete 11 character part number of each required part as found in the following parts list A7207 Type 289RC PART NOT SHOWN MACHINE SCREW KEY 29 BYPASS VALVE TUBING AND FITTINGS NOT SUPPLIED WITH THE TYPE 289RC EXHAUST BOOSTER Figure 5 Type 289RC Exhaust Booster Type 289RC Parts List Key Description Part Number Key Description Part Number 1 Valve Body Aluminum 14B9956X012 21 O Ring Holder Aluminum 1F826409012 2 Spring Case Aluminum 2P901508012 22 O Ring Washer Aluminum 1F826509012 3 Diaphragm Head Zinc plated carbon steel 1D666428982 23 Spacer 17B7490X012 4 Spring Seat Zinc plated carbon steel 1D667125072 24 Hex Nut 1A499724122 5 Diaphragm Nitrile NBR on nylon 2 required 24B5622X012 28 Pipe Plug T13718T0012 6 Adjusting Screw 1D995448702 29 Machine Screw 2 required 1H526928982 7 Spring 302 Stainless steel 17B9737X012 30 O Ring Nitrile NBR 2 required 1D687506992 8 Machine Screw 8 required 10856228992 31 Stem Guide Assembly Zinc Brass 18B0253X012 9 Screen
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