USER'S MANUAL - Rotex Controls BV
Contents
1. absolute pressure of 760mmHg And humidity of 80 Please contact us for more detailed specification 7 RTX1200 R1 2010 Pneumatic Positioner RTX 1200 series Parts and Assembly COVER _ PILOT VALVE SPAN UNIT _ BASE BODY CONNECTOR _ FEEDBACK CAM ee FEEDBACK SHAFT TORQUE MOTOR ee ZERO UNIT DIAPHRAGM VALVE LEVER eS L J _ PROFILE PLATE COVER PILOT VALVE SPAN UNIT _ BASE BODY CONNECTOR l l FEEDBACK CAM _ FPEEDBACK SHAFT TORQUE MOTOR aa DIAPHRAGM VALVE __ ZERO UNIT 8 RTX1200 R1 2010 Pneumatic Positioner RTX 1200 series Dimensions Installation Safety Warning When installing positioner please ensure to read and follow safety instruction e All input and supply pressure to valve actuator and other related devices must be turned off e Use bypass valve or other equipment to avoid entire system shut down e Make sure to exhaust air from actuator Tools for Installation 1 Adjustable wrench 2 Screw drivers amp 3 Allen Key 6mm 4mm 2 5mm 2mm RTX 1200R Installation RTX 1200R can be used for rotary actuator as well as linear actuator Cylinder Rotary a2. air pressure level is stable from the regulator If the level is unstable replace the regulator e Hysteresis is too low 1 In case of double acting actuator check if seat adjustment has been properly done Please contact ROTEX for any further inquiries regarding the seat adjustment 2 Backlash can occur when feedback lever and lever spring is loosen To avoid backlash adjust the lever spring 3 Check if the connection bar to the feedback lever is tightly fastened 16 RTX1200 R1 2010 Pneumatic Positioner PTR ASSEMBLY RTX 1200 series PTR BOM PART NO DESCRIPTION MATERIAL 1 GEAR FIX ALUMINIUM 2 SOCKET HEAD SCREW S304 3 GEAR ALUMINIUM 4 BRACKET MS 5 POT 10K ohm 6 SPRING SS304 7 BUSH ALUMINIUM 17 RTX1200 R1 2010 Pneumatic Positioner RTX 1200 series PTR ASSEMBLY PROCEDURE Remove the cam unit from the shaft as shown in exploded view Now put the gear fix 1 on the shaft and assemble the cam unit Now tight the grub screw on the gear fix 1 with the help of hex Key Fix the pot 5 with bracket 4 with nut provided Fix the gear 3 on pot stem with grub screw Insert the bush 7 into bracket 4 put spring 6 on bush 7 OD and lock it with bracket as shown in assembly Keep the gear 3 at pressure gauge side and screw entire assembly in positioner with screw 2 Mesh the gear properly and lock the second end of spring 6 in positioner body PTR SET
3. be shown DA On the other hand when the stem rotates counter clockwise adjust cam so RA shows on the face of cam 2 Check whether actuator s angle is at the initial point 3 After checking the initial point release the hexagonal flange nut and adjust the position of the bearing so it is at 0 point Fig 11 4 When produced the cam is set as RA Counter clockwise Clockwise Bearing Reverse Acting Direct Acting Fig 11 13 RTX1200 R1 2010 Pneumatic Positioner RTX 1200 series Adjustment Zero Point 1 Set supply signal at 3 psi and rotate adjuster clockwise or counter clockwise to adjust actuator s rotation angle Fig 12 2 When adjusting zero for single actuator rotation angle is equal to positioner s pressure gauge aan o Fig 12 Adjustment Span Lock Screw 4 i Uu 0 SPAN sE 1 After setting zero rotate Span screw so supply signal reaches at the span point on the indicator 2 Changing span point affects zero point setting So zero setting must be set again After setting zero point confirm the span point This step must be repeated until both points are properly set 3 For RTX 1200R with 1 2 split range the span spring must be changed 4 After setting is completed tighten Lock
4. clean area on a workbench 4 RTX1200 R1 2010 Pneumatic Positioner RTX 1200 series Product Description Main Features and Functions e The product can operate normally in very extreme environment such as vibration e The durability has proven after testing of 1 million times at least e Response time is very short and accurate e Simple part change can set 1 2 Split Range e It is economical due to less air consumption e Direct Reverse action can be set easily e Zero amp Span adjustment process is simple Feedback Connection is easy Operation Logic NPUT Tr 1A RTX 1200R Diaphragm 1 push flapper 2 if input pressure increases Then the gap between nozzle 3 and flapper 2 increases which results pressure in upper spool 4 exhaustion This would cause spool 5 to rise upward As the spool 5 rises it pushes poppet 8 and the air pressure will be supplied to the actuator 10 As the actuator s inner pressure increases the actuator stem 12 will rotate For graphical diagram please refer to Fig 1 5 RTX1200 R1 2010 Pneumatic Positioner RTX 1200 series INPUT Label Description Model No Input Signal Supply Pressure Serial Number Suffix Symbol RTX 1200 series follows suffix symbol as follows CE S ROTEX EL pace MODEL RTX 1200 WEATHER PROOF IP 65 FL
5. manual carefully and understood 1 2 The manual should be given to the end user The manual can be changed or revised without any prior notice Any changes in product s specification structure and or any components may not result immediate revised version of the manual The manual should not be duplicated or reproduced for any purpose without any consent of Rotex Manufacturers amp Engineers Private Limited INDIA Manufacturer Warranty For the safety it is vital to follow instructions in the manual It is not ROTEX s liability for any damages which caused by users negligence It is not ROTEX s liability for any damages or accidents which resulted by any alteration or modification of the product and parts If alteration or modification is necessary please contact the ROTEX directly ROTEX warrants the product from the date of original retail purchase of the product for one 1 year except as otherwise stated ROTEX warranty will not cover the products that the product have been subjected to abuse accident alteration modification tampering negligence misuse faulty installation lack of reasonable care repair or service in any way that is not contemplated in the documentation for the product or if the model or serial number has been altered tampered with defaced or removed damages that occurs in shipment failure due to power surge and cosmetic damage Improper or incorrectly performed maintenance or report voids thi
6. used beyond the range of 1 4 7 kgf cm2 140 700 kPA e Set air filter regulator s supplied pressure 10 higher than actuator s spring range pressure Pipe Condition e Before piping conduct air blow to clean the inside of the pipe to get rid of extraneous materials powers etc e Do not use apparatus or joint which could cause leakage and resistance in the pipe e Do not use pipeline that is squeezed or has hole e To maintain flow rate use the pipeline that has more than 6mm inner diameter 10mm outer diameter e Do not use extremely long pipeline system It may affect flow rate due to the friction inside of the pipeline e When connecting pipes be sure that sealing tape on adhesive does not mix with the pipes Pipe Connection with actuator Single acting actuator RTX 1200R series single acting type is set to use OUT1 port OUT1 port should be connected with supply pressure port from actuator when using single acting type of spring return actuator Fig 7 amp 8 Fig 7 Fig 8 12 RTX1200 R1 2010 Pneumatic Positioner RTX 1200 series Double acting actuator For RTX 1200R series double acting type when inputting current signal supply pressure is out from OUT1 Please refer to Fig 9 amp 10 cz Fig 9 Fig 10 Adjustments Adjustment Cam 1 Direction of actuator s stem rotation must be checked when supply signal is supplied When actuator s stem rotates clockwise the face of cam must
7. APPER amp DION APEE NOZZLE ee tactuaton LER SUTENT MECHANISM OUTPUT STABILIZER __ SPRING FEEDBACK CAM FEEDBACK SPRING MECHANISM LEVER Fig 1 T6 AMBIENT TEMP 20 C 70 C SUPPLY PR 1 4 7 0 bar INPUT SIGNAL 0 2 1 0 bar SERIAL NO Indicates model name and any options if any Indicates current input signal range Indicates the range of supply pressure Indicates unique serial number RTX 1200 7 2 B m 5 1 Motion Type Rotary Linear 2 Acting Type OM ITD Single Double 3 Feedback Lever Nil 50 100 150 200 4 Connection Type BSP NPT 5 Ambient Temp M OIN N AN O JQ 20 C 70 C 20 C 120 C 40 C 150 C RTX1200 R1 2010 Pneumatic Positioner RTX 1200 series e For Special specification please contact our sales department Specification Category RTX 1200R Input Signal 0 2 1 0 kgf cm 3 15 psi Supply Pressure 1 4 8 0 kgf cm 20 120psi Stroke 0 90 Air Connection PT 2G 2R Protection IP 65 Cam Linear Equal SQ SQ RT Ambient Temp Standard 42 C 150 C Linearity 1 Hysteresis 1 Sensitivity See Repeatability EOS Internal Bleeding 3 0LPM Sup 1 4kgf cm 11LPM Sup 4 0kgf cm Flow Capacity 80LPM Sup 1 4kgf cm 200LPM Sup 4 0kgf cm Material Aluminum Die casting Weight 1 9 kg e Test under ambient temperature of 20 C
8. Pneumatic Positioner RTX 1200 series Pneumatic Positioner RTX Series USER S MANUAL IN 5 Ce SS Yo NS yo De No are ASR x 0 Ta Q Se Voa ep 4 rT 06 Sony i Py Ty ag ee Mos ta Dp y by 0 ROTEX P P Ver 0 1 Dated MAY 2009 REV 01 SEP 2010 Page 1 of 16 __ 1 RTX1200 R1 2010 Pneumatic Positioner RTX 1200 series Table of Contents Introduction 3 Manufacturer Warranty 3 General Service Information 4 Product Description 5 Operation Logic 5 Label Description 6 Suffix Symbol 6 Specification 7 Parts and Assembly 8 Dimension 9 Safety Warning 9 Tools for Installation 9 RTX 1200 Installation 10 Bracket Information 10 11 Piping Connection 12 Supply Pressure Condition 12 Pipe Condition 12 Piping Connection with Actuator 12 Single Acting Actuator 12 Double Acting Actuator 13 Adjustment 13 Adjustment Cam 13 Adjustment Zero 14 Adjustment Span 14 Adjustment A M Switch Automatic Manual 15 Adjustment Seat Adjuster 15 Troubleshooting 16 PTR Assembly and BOM 17 PTR Assembly procedure and setting 18 2 RTX1200 R1 2010 Pneumatic Positioner RTX 1200 series Introduction Thank you for choosing ROTEX product Each product is fully inspected after the production to offer you the highest quality In order to fully utilize the product we strongly recommend users to read this
9. Screw Fig 13 Fig 13 14 RTX1200 R1 2010 Pneumatic Positioner RTX 1200 series Adjustment A M Switch Auto Manual 1 A M switch adjusts the valve operation to automatic or manual 2 When produced RTX 1200 series is set at A Automatic If user prefers the positioner s setting as M Manual the setting can be changed by turning the switch counter clockwise Fig 14 3 If it is set as M Manual the air pressure will be supplied to the actuator directly Always set back to A Automatic after setting change 4 f OUT2 in single acting actuator or double acting actuator is used A M Switch will not operate Fig 14 peat Adjuster Auto Manual Switch Lock Screw Adjustment Seat Adjuster 1 Seat Adjuster is set according to the customer s request before the positioner is delivered Please do not adjust the Seat Adjuster 2 Seat Adjuster is used for double acting actuator always Please do not touch the Seat Adjuster because it can affect the positioner s performance 15 RTX1200 R1 2010 Pneumatic Positioner RTX 1200 series TROUBLE SHOOTING e Positioner does not respond to the input signal 1 Check supply pressure level The level must be at least 1 4 kgf cm 2 Check if input signal is properly supplied to the positioner The signal should be 3 15 psi 3 Check if the positioner s nozzle has been blocked Also check if the pressure is supplied to the positioner and the pressure is being exhauste
10. TING O01 ON oo N Bring positioner to zero or closed position Rotate the pot 5 clockwise direction to minimum position Set the zero position 4mA and mesh it with gear Bring the positioner to 90 deg or open position adjust the value to 20mA using zero setting on PCB mounted in junction box POn gt 18 RTX1200 R1 2010
11. ctuator motion valves are used for regulating ball valve butterfly valve using rack and pinion scotch yoke of complex type actuator which its stem rotates 90 degrees And linear actuators are used to regulate the motion of dampers In this arrangement we use a profile plate which converts linear movement of cylinder into rotary motion Be sure to check the following components before installation on rotary actuator 1 RTX 1200 main assembly IOM 1 Set of bracket Not as a part of supply needs to be order separately 4 Socket set screw 4 Spring washer 4 Hexagon head bolt DRN 9 RTX1200 R1 2010 Pneumatic Positioner RTX 1200 series RTX 1200R_Install Layout on Rotary Actuator POSITIONER BRACKET SHEX BOLT SOCKET SET SCREW _ ACTUATOR Fig 2 RTX 1200R on Rotary Actuator Bracket Information Fig 3 RTX 1200R on NAMUR Shaft RTX 1200 is supplied with standard bracket Please see above Figure for more detailed information Refer Fig 2 10 RTX1200 R1 2010 Pneumatic Positioner RTX 1200 series 1 Standard actuator stem height H is 20 30 or 50mm After checking H assemble with the bracket as shown in Fig 3 amp 4 For bracket selection refer bracket selection chart in ROTEX positioner catalogue Fig 4 2 Attach bracketed RTX 1200 to the actuator by using slotted screw and hexagon nuts When tightening bolts use spring washer
12. d through the nozzle If the nozzle has been blocked by any substances please send the product to ROTEX for repair 4 Check if feedback lever has been installed properly e The pressure of OUT1 reaches exhausting pressure level and does not come back down 1 Check A M Switch If the switch has been damaged replace the switch or pilot relay valve 2 Check for a gap or damages between the nozzle and the flapper If damaged please send the product to ROTEX for repair e The pressure is exhausted only by A M Switch 1 Check if the positioner s nozzle has been blocked Also check if the pressure is supplied to the positioner and the pressure is being exhausted through the nozzle If the nozzle has been blocked by any substances please send the product to ROTEX for repair e Hunting occurs 1 Check if safety spring has been displaced Next to Pilot relay valve 2 Check if the size of actuator is too small If so insert an orifice in order to reduce the pressure flow rate 3 Check if there is any friction between the valve and the actuator If so increase actuator s size or reduce the friction level e Actuator only operates by On Off 1 Check pipe connection 2 Check cam direction e Linearity is too low 1 Check if the feedback lever is properly installed Especially check if the feedback lever is parallel to the ground at 50 point 2 Check if zero and span have been properly adjusted that is not too low or nottoo high 3 Check if supply
13. or similar for firm attachment to the actuator so RTX 1200 have no effect by vibration or any other impact The positioner is installed as shown in Fig 5 Fig 5 3 Set rotation position of the actuator stem at zero point 0 For a single type of actuator it is easy to check zero point because the actuator stem is positioned at zero point when there is no supply pressure If double acting actuator is used check actuator stem s rotation direction clockwise or counter clockwise by supplying pressure 4 Tighten RTX 1200 base and the bracket with hexagon headed bolts and plate washer It is recommended to tighten four bolts after checking RTX 1200 s position 11 RTX1200 R1 2010 Pneumatic Positioner RTX 1200 series Piping Connection RTX 1200 has a nozzle with a very small orifice thus use clean and less humid air in order to prevent extraneous material from mixing into the air As per the filter pay attention to filtration rating flow rate mounting position etc Note e To avoid entering moisture oil or dust into the product please carefully make selection of supply pressure compressor e t is recommended to attach air filter regulator before supply port of RTX 1200 Supply Pressure Condition Dry air with at least 10 C lower than ambient temperature Avoid from dusty air 5 micron filter provided Avoid any oil Comply with ANSI ISA 57 3 1975 R1981 ISA S7 3 1975 R1981 e Not to be
14. s Limited Warranty For detailed warranty information please contact ROTEX MANUFACTERURS amp ENGINEERS PRIVATE LIMITED MANAPADA ROAD DOMBIVLI E MAHARASTRA INDIA PIN 421204 3 RTX1200 R1 2010 Pneumatic Positioner RTX 1200 series General Service Information 8 9 Service procedure is offered as a guide to enable general maintenance to be performed on ROTEX Pneumatic Positioner Normal recommended service interval under normal working condition for Pneumatic Positioner is five years It may vary on usage performance ratio Note Storage time is counted sad part of the service interval Storage temperature 20 C to 70 C This procedure is applicable with the understanding that all pneumatic pressure has been removed from the positioner Remove all piping amp mounting accessories that will interface with the module s that are to be worked on This procedure should only be implemented by a technically competent technician who should take care to observe good workmanship practices Number in parentheses indicates the bubble number reference number used on the ROTEX assembly drawing When removing seals from seal grooves use a commercial seal removing tool or a small screw driver with sharp corner rounded off Use a non hardening thread sealant on all pipe thread CAUTION Apply the thread sealant per the ROTEX s instruction 10 ROTEX recommends that servicing of the positioner should be done in a
Download Pdf Manuals
Related Search