USER`S MANUAL - Chemline Plastics Limited
Contents
1. be supplied to the actuator As the actuator s inner pressure increases the actuator stem will move For graphical diagram please refer to lt Figure 1 gt Label Description MODEL AG r Y 120 SIGNAL 3 15 pi YZ i hyip e j SLP PRESSURE Wedd peat 1AT kgf en C SERAL HCL r eA 1 Wer FP POSITIONER Model Input Signal Supply Pressure Serial Number Suffix Symbol Indicates model name and any options if any Indicates current input signal range Indicates the range of supply pressure Indicates unique serial number YT 1200 series follows suffix symbols as below YT 1200 fi 2 GB A Bl O Motion Type Acting Type Feedback Lever MY T 1200 Feedback Lever 1 1207 Connection Type E Ambient Temp For specal specication L Linear F Rotary 5 Single E Double 1 10 70 2 30 SOM 1mm 10 4 MAMUR Ay UDP HE 5 20C 70 C H 20 120C L JO FOE Pease contact our sales department Specification Category 0 2 1 0 L5psii 14 7 0 0 011 20 100psi Input Signal Supply Pressure Stroke 10 0 0 Air Connection PT MPT 98 Gauge Connection 2 0 7 PT NFED 1 8 Protection Cam Ambient Temp Lineartty Hysteresis Sensitivity Repeatability Air Consumption Flow Capa ity Maternal Weight Test under ambent temp2. 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 due to act of God failure due to power surge and cosmetic damage Improper or incorrectly performed maintenance or report voids this Limited Warranty For detailed warranty information please contact the corresponding local Young Tech Co Ltd office or main office in South Korea Product Description Main Features and Functions gt The product can operate normally in very extreme environment such as vibration and temperature gt The durability has been proven after testing 2 million cycles at the minimum gt Response time Is very short and accurate gt Simple part change can set 1 2 Split Range gt It is economical due to less air consumption gt Direct Reverse action can be set easily gt Zero amp Span adjustment processes are simple gt Feedback connection is easy Operation Logic hy re ay a e PRESSURE Li m 1 E m ak all 0 HP 778 FREESURE 2Y 12008 101 Bellows push flapper if input pressure increases Then the gap between nozzle and flapper increases which results pressure in upper spool G exhaustion This would cause spool G to rise upward As the spool rises it pushes format and the air pressure will
3. 15 gt lt Figqure 14 1 140 lt Figqure 15 10 Double Acting Actuator For YT 1200 series double acting type when inputting current signal supply pressure is our from OUT1 port Please refer to lt fig 16 amp 17 gt Figure 10 1200 lt Fiqure 17 1200 Adjustment Adjustment Cam 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 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 O point lt Figure 18 gt When produced the cam is set as RA Reverse acting Direct acting lt Fiqure 18 gt Adjustment Zero Point DD Set supply signal at 3 psi and rotate adjuster clockwise or counter clockwise to adjust actuator s rotation angle lt Figure 19 gt 2 When adjusting zero for single actuator rotation angle is equal to positioner s pressure gauge de 1 1 H e Figure 19 gt Adjustment Span YT 1200L 12 Lock Serew Lock Figure 20 gt After setting zero rotate Span screw so supply signal reaches at the span point on the indicator 2 Changing span point affects zero point setti
4. Pneumatic Positioner YT 1200 Series USER S MANUAL YTC Ver 1 01 Introduction Thank you for choosing YTC 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 manual carefully and understood 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 approvals from Young Tech Co Ltd South Korea YTC Manufacturer Warranty gt For the safety it is imperative to follow instructions in the manual It is not manufacturer s liability for any damages which caused by users negligence It is not manufacturer 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 manufacturer directly Manufacturer warrants the product from the date of original retail purchase of the product for one 1 year except as otherwise stated Manufacturer 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
5. Spanners for hexagonal head bolts YT 1200 Installation YT 1200L should be installed on linear motion valve such as globe valve or gate valve using spring return type diaphragm or piston actuator Before installation be sure to check for following installation components YT 1200L main body Feedback lever and lever spring Flange nut bottom side of YT 1200L 4 pcs of hexagon head bolts M8 x 1 25P 4 pcs of M8 plate washer Installation Steps 1 Proper bracket must be made in order to attach positioned on the actuator yoke Please consider following when making a bracket A Feedback lever should be leveled at 50 of the valve stroke refer to step G B Feedback lever connection bar of the actuator damp should be installed at the positioned that the valve stroke and numbers which indicated on the feedback lever must be fitted refer to step H 2 Attached YT 1200L to the bracket which was produced in previous step by using bolts lt Fig 1 gt Please refer to backside of the unit for size of the bolts The standard size of bolt is M8 x 1 25P and other bolts sizes are available Please contact YTC sales department 3 Attach YT 1200L with bracket to the actuator yoke DO lt Fiqure 1 gt NOT TIGHTEN COMPLETELY Connect YT 1200L feedback lever to the actuator clamp The gap on the YT 1200L feedback lever is 65mm The connection bar thickness should be less than 6 3mm lt Fig 2 gt 5 Connect a
6. T 1200R base and the bracket with hexagon headed bolts and plate washer is recommended to tighten four bolts after checking YT 1200R s position lt Figqure 13 gt Piping Connection Note gt To avoid entering moisture oil or dust into the product please carefully make selection of supply pressure compressor It is recommended to attach air filter regulator lt YT 200 gt before supply port of YT 1200 Supply Pressure Condition Dry air with at least 10 C lower than ambient temperature Avoid from dusty air Filter can only sort 5 micron or larger Avoid any oil Comply with ANSI ISA 573 1975 R1981 and ISA S73 1975 R1981 Not to be used beyond the range of 1 4 7 kgf cm 140 700 kPA Set air filter regulator s supplied pressure 10 higher than actuator s spring range pressure Pipe Condition Make sure inside of pipeline is emptied Do not use pipeline that has been squeezed or has hole To maintain flow rate use the pipeline that has more than 6mm inner diameter 10mm outer diameter Do not use extremely long pipeline system It may affect flow rate due to the friction inside of the pipeline Piping connection with actuator Single Acting Actuator YT 1200 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 lt fig 14 amp
7. erature of 207 absolute pressure of 760mmHa ard humidity of 65 Flas 3 OLPIM Sup 1 4 111 900 4 17 0 SOLPM Sup L4kafient 200LPM Sup 4 01 Aluminum Diecasting contact us for the more detailed specication Parts and Assembl PILOT ALYE TORQUE MURTOR FEEDBAL A SHAFT lt T 1A00L gt PILOT VALVE SFAH UNIT CONHECTOR HaF T FEEDBACK 5 TORQUE HORTOR ZERO UIT LEVER lt T 1200R gt Dimensions c YT LOOL Dimension oar Far Fa EErEE E YT 128408 Dimension Installation Safety Warning When installing a positioned please ensure to read and follow safety instruction gt All input and supply pressure to valve actuator and other related devices must be turned off gt Use bypass valve or other equipment to avoid entire system shut down gt Make sure there is no remaining pressure in the actuator Tools for Installation Hexagonal wrench Screw Drivers and 3
8. hould be used for rotary motion valve that is ball valve butterfly valve using rack and pinion scotch yoke or complex type actuator which its stem rotates 90 degrees Before installation be sure to check for following installation components YT 1200R main body Fork lever and lever spring 1 set of bracket 3 pcs 4 pcs of hexagon head bolt M8 x 1 25P O oY 4 pcs of M8 plate washer YT 1200R Install Example YT L200R on MAE Lever Bracket Information YT 1200R is supplied with standard bracket The bracket can be used for fork lever and NAMUR bracket Please see lt fig 8 gt for more detailed information Upper Bracket B Upper Bracket A 100 7 2 Ca r 1 NAMUR TYPE 20 5 i FORK TYPE 20 NAMUR TYPE FORK AYE 30 MALE TYPE 50 ca FORK TYPE 50 ined lt Figure 8 1 Standard actuator stem height H is 20 30 or 50 mm After check H assemble with the bracket as shown in lt fig 8 amp 9 gt Actuator Stem iH cl Actuator lt Figqure 9 2 Attached bracketed YT 1200R to the actuator by using hexagonal headed and wrench bolts Size of the bracket hole is 6mm When tightening bolts use spring washer or similar for complete attachment to the actuator so YT 1200R will not be shaken by vibration or any other impact The direction of bracket is different by the operating condition but in general the positioned is in
9. ignal is properly supplied to the positioned The signal should be 3 15 psi Check if the positioner s nozzle has been blocked Also check if the pressure is supplied to the positioned and the pressure is being exhausted through the nozzle If the nozzle has been blocked by any substances please send the unit to YTC for repair Check if feedback lever has been installed properly gt The pressure of OUT1 reaches exhausting pressure level and does not come back down Check A M switch If the switch has been damaged replace the switch or pilot relay valve Check for a gap or damages between the nozzle and the flapper If damaged please send the unit to YTC for repair gt The pressure is exhausted only by A M switch Check if the positioner s nozzle has been blocked Also check if the pressure is supplied to the posiioner and the pressure is being exhausted trough the nozzle If the nozzle has been blocked by any substances please send the unit to YTC for repair gt Hunting occurs Check if safety spring has been displaced lt Next to pilot relay valve gt 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 gt Actuator only operates by on off Check pipe connection Check cam direction gt Linearity is t
10. ir filter regulator to the actuator temporarily Set supply pressure of the regulator in order to position the actuator damp at 50 of valve stroke lt Fig 3 gt 6 Insert connection bar into the YT 1200L feedback lever The connection bar should be inserted at the 50 point on the feedback lever which would help to reduce hysteresis lt fig 4 gt lt Fiqure 4 gt 7 If connection bar does not point at 50 point then adjust bracket or feedback link bar position Failure to position at 50 would lower the linearity of the positioner lt fig 5 gt lt Figqure 5 gt 8 Check valve stroke The stroke numbers are indicated on the feedback lever Position connection bar at the number on the feedback lever according to the valve stroke gt 9 6 gt To adjust move the bracket or the connection bar 7 gga wee conan Stroke 30mm w a Stroke 7mm lt Fiqure 6 gt NOTE After installing YT 1200L operate the valve from 0 to 100 stroke by using air filter regulator Both of 0 and 100 the feedback lever should not touch the lever stopper which is located on the backside of YT 1200L lt fig 7 gt If the feedback lever touches the stopper YT 1200L should be installed further away from the center of the yoke Figure J gt 9 After the proper installation tighten all of the bolts on the bracket the feedback lever and the connection bar YT 1200R Installation YT 1200R s
11. ng 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 If 1 2 split range is used YT 1200L can be used after span and zero point are set For YT 1200R with 1 2 split range the span spring must be changed After setting is completed tighten Lock Screw lt Figure 20 gt Adjustment A M Switch lt Auto Manual gt 1 A M switch adjusts the valve operation to Lock Screw automatic or manual 2 YT 1200 series is set as Automatic as default If user wants to set as M Manual the setting can be adjusted by turning the switch counter clockwise lt fig 21 gt 3 If the setting is at M the air pressure will be supplied to the actuator directly Always set the Auto Manual switch setting back to A after any change eos Faure 21 gt 4 If OUT2 in single acting actuator or double acting actuator is used A M switch will not operate Adjustment Seat Adjuster Seat adjuster is set according to the customer s request before the positioned is delivered Please do not adjust the seat adjuster Seat adjuster is used for double acting actuator Please do not touch the seat adjuster because it can affect the positioner s performance Troubleshooting gt Positioner does not respond to the input signal Check supply pressure level The level must be at least 1 4 kgf cm Check if input s
12. oo low Check if the feedback lever is properly installed Especially check if the feedback lever is parallel to the around at 50 point Check if zero and span has been properly adjusted that is not too low or not too high Check if supply air pressure level is stable from the regulator If the level is unstable replace the regulator gt Hysteresis is too low Incase of double acting actuator check if seat adjustment has been properly done Please contact YTC for any further inquiries regarding the seat adjustment 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 Young Tech Co Ltd Address 7652 8 Pungmu Dong Gimpo City Kyunggi Do South Korea Telephone 82 801 966 8545 Fax 82 31 986 2665 Website tte fas yt C Kr User Manual and other information on the documents are subjected to change without any notice Please visit website for most updated information Printed Date June 7
13. stalled as shown lt Figure 10 gt lt fig 10 gt 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 Install the fork lever as shown in lt fig11 gt after setting actuator stem at zero point Check the direction of the actuator stem clockwise or counter clockwise Installation angle of the fork lever should be 45 degrees based on the linear shaft For NAMUR shaft the angle does not matter N F C ounterectockivige EE e gm ck Wise lt Figure 11 gt 5 After setting fork lever position lock nuts which are assembled on bottom of the fork lever 6 Attach YT 1200R to the bracket Fix the damping pin on the main shaft of YT 1200R and insert connection bar into the fork lever slot so it can be locked to the fork lever spring This sets the alignment of the main shaft of YT 1200R and center of the actuator stem Bad alignment of the main shaft and the actuator stem lowers YT 1200R s durability because too much force will be on the main shaft of YT 1200R lt fig 12 gt Fork Lever It lt fig 13 gt Main Shaft Connection Bar Figure 12 CL mm le 7 Tighten Y
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