USER`S MANUAL - Young Tech Co.,Ltd (YTC)
Contents
1. 9 After the proper installation tighten all of the bolts on the bracket the feedback lever and the connection bar 2 ravi 11 A verre EVEI kmi ia INDIAN SALES PARTNER TORG EON e ae Pneumatic Positioner YT 1200 Series YT 1200R Installation YT 1200R should 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 4 pcs of M8 plate washer YT 1200R Install Layout YT 1200R on Fork Lever YT 1200R on NAMUR Lever A 2 m 12 suse ew E km E i INDIAN SALES PARTNER YOUNG THON Ce tae Pneumatic Positioner YT 1200 Series Bracket Information YT 1200R is supplied with standard bracket The bracket can be used for Fork lever and NAMUR bracket Please see lt Figure 8 gt for more detailed information Upper Bracket B Upper Bracket A YT 1200R ae OOF y NAMUR TYPE 20 z i FORK TYPE 0 E NAMUR TYPE 30 FORK HYPE 302. 15 ERSE E y E km E ia INDIAN SALES PARTNER Yount e Gas Pneumatic Positioner YT 1200 Series Piping Connection Note 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 YT 1200 Supply Pressure Condition Dry air with at least 10 lower than ambient temperature Avoid from dusty air Filter can only sort 5 micron or larger Avoid any oil Comply with ANSI ISA 57 3 1975 R1981 ISA S7 3 1975 R1981 Not to be used beyond the range of 1 4 7 kgf cm2 140 700 kPA Set air filter regulator s supplied pressure 10 higher than actuator s spring range pressure Pipe Condition Make sure inside of pipe is emptied Do not use pipeline that is 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 Figure 14 amp 15 gt N OT
3. A F I 3 ERSE E eS INDIAN SALES PARTNER TOG Co Pneumatic Positioner Product Description Main Features and Functions Operation Logic Feedback Connection is easy Response time is very short and accurate It is economical due to less air consumption Direct Reverse action can be set easily Zero amp Span adjustment process is simple Simple part change can set 1 2 Split Range The durability has proven after testing of 1 million times at least YT 1200 Series The product can operate normally in very extreme environment such as vibration OUT 2 ayy 1 SUPPLY ANN INPUT SIGNAL PRESSURE SUPPLY INPUT SIGNAL PRESSURE lt YT 1200L gt Bellows push flapper if input pressure increases and the air pressure will be supplied to the actuator pressure increases the actuator stem will move to lt Figure 1 gt lt YT 1200R gt Then the gap between nozzle 3 and flapper increases which results pressure in uppe
4. Reverse acting Direct acting lt Figure 18 gt A 2 m 17 TT E mm y E EWES i INDIAN SALES PARTNER YOUNG THON Ce kaf Pneumatic Positioner YT 1200 Series Adjustment Zero Point Set supply signal at 3 psi and rotate adjuster clockwise or counter clockwise to adjust actuator s rotation angle lt Figure 19 gt When adjusting zero for single actuator rotation angle is equal to positioner s pressure gauge O tlilitlititil AAA D Laj i lt Figure 19 gt Adjustment Span 20 YT 1200R Lock Screw as Lock Screw Ort 1 1 SPAN lt Figure 20 gt 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 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 4 After setting is completed tighten Lock Screw lt Figure 20 gt A 2 m 18 ansu E ew EWES km E k INDIAN SALES PARTNER YOUNG THON Ce tas Pneumatic Positioner YT 1200 Series Adjustment A M Switch
5. NAMUR TYPE 50 FORK TYPE 0 O 0 lt Figure 8 gt 1 Standard actuator stem height H is 20 30 or 50mm After checking H assemble with the bracket as shown in lt Figure 8 amp 9 gt Oo Actuator Stem H N Actuator lt Figure 9 gt 2 Attach bracketed YT 1200R to the actuator by using hexagon headed and wrench bolts Size of the bracket hole is 6mm When tightening bolts use spring washer or similar for firm attachment to the actuator so YT 1200R will not shake by vibration or any other impact The direction of bracket is different by the operating condition but normally the positioner is installed as shown in lt Figure 10 gt A 2 m 13 ansu mm ew E IWIN im E ia INDIAN SALES PARTNER YOUNG THON Ce kaf Pneumatic Positioner YT 1200 Series lt Figure 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 Figure 11 gt after setting actuator stem at zero point Check the direction of the actuator stem clockwise
6. 1 10 40mm YT 1200L 2 30 70mm 3 60 100mm 4 100 150mm 1 M6 x 40L Feedback Lever 2 M6 X 63L YT 1200R 3 M8 X 40L 4 M8 X 63L 5 NAMUR DXDXDDDDDODDDDDDDDODDDD DDD DDD 4 Connection Type 1 2 NPT 1 1 1 1 1 1 1 5 Ambient S 20K 8 H 20X 120X L 40 70X 21 1 2 2 2 28 8 8 2 28 2 N N KN N N 2 N K 8 For special specification please contact our sales department AAI FY ERSE E eS INDIAN SALES PARTNER TOY o Pneumatic Positioner Specification YT 1200 Series Supply Pressure Stroke YT 1200L YT 1200R Category Single Double Single Double Input Signal 02 3 15psi 1 4 7 0kgf cm 20 100psi 10 150mm 0 90 Air Connection PT NPT 1 4 Gauge Connection PT NPT 1 8 Air Consumption Protection IP66 Cam Linear Standard 20 70X Ambient Temp High 20 120X Low 40 70X Linearity 1 0 F S 2 0 F S Hysteresis 0 75 F S 1 0 F S Sensitivity 0 2 F S 0 5 F S Repeatability 0 3 F S 0 5 F S 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 Diecasting Weight 1 7kg Test under ambi
7. a 5 A 20 3 lt YT 1200R Dimension gt f 8 INDIAN SALES PARTNER VONG THO Co Gas Pneumatic Positioner YT 1200 Series Installation Safety Warning When installing positioner please ensure to read and follow safety instruction All input and supply pressure to valve actuator and other related devices must be turned off Use bypass valve or other equipment to avoid entire system shut down Make sure there is no remaining pressure in the actuator Tools for installation Hexagonal wrench Screw drivers amp Spanners for hexagonal head bolts YT 1200L 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 positioner on the actuator yoke Please consider following when making a bracket Feedback lever should be leveled at 50 of valve stroke Refer to Step 7 2 Feedback lever connection bar of actuator clamp should be installed at the position that the valve stroke and numbers which indicated on the feedback lever must be fitted Refer to Step 8 2 Attach Y
8. 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 Counter clockwise Clockwise ata Y O O Ro oll Hoo o ol O O O O O O 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 clamping 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 A 2 m 14 suse ew E IWIN imi ho INDIAN SALES PARTNER YOUNG THON Ce ba Pneumatic Positioner YT 1200 Series 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 Figure 12 gt Fork Lever Clamping Pin Connection Bar Main Shaft 7 Tighten YT 1200R base and the bracket with hexagon headed bolts and plate washer It is recommended to tighten four bolts after checking YT 1200R s position lt Figure 13 gt lt Figure 13 gt A 2
9. Auto Manual 1 A M switch adjusts the valve operation to automatic or manual 2 When produced 1200 series is set at ter A Automatic If user prefers the positioner s setting as M Manual the setting can be changed by turning the switch counter clockwise lt Figure 21 gt 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 If OUT2 in single acting actuator or double acting actuator is used A M Switch will not operate lt Figure 21 gt Adjustment Seat Adjuster Seat Adjuster is set according to the customer s request before the positioner is delivered Please do not adjust the Seat Adjuster Seat Adjuster is used for double acting actuator always Please do not touch the Seat Adjuster because it can affect the positioner s performance A 2 mI 19 sue ew IWIN imi i INDIAN SALES PARTNER YOUNG THON Ce ba Pneumatic Positioner YT 1200 Series TROUBLESHOOTING K 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 exhausted through the nozzle If the nozzle has been blocked by any substan
10. N Ce kaf Pneumatic Positioner YT 1200 Series lt Figure 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 Figure 5 gt E f f N 1 2 9 8 25 te 1 a 208 50 dns POSITIONER 1 33 RB A Sy E lt Figure 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 lt Figure 6 gt To adjust move the bracket or connection bar Stroke 30mm Stroke 70mm lt Figure 6 gt Note After instaling YT 1200L operate the valve from 0 to 100 stroke by using air filter regulator on the actuator Both of 0 and 100 the feedback lever should not touch the lever stopper which is located on the backside of YT 1200L lt Figure 7 gt If the feedback lever touches the lever stopper YT 1200L should be installed further away from the center of the yoke lt Figure 7 gt
11. Pneumatic Positioner YT 1200 Series USER S MANUAL Ver 1 01 YTC Pneumatic Positioner YT 1200 Series Table of Contents Introduction 3 Manufacturer Warranty 3 Product Description 4 Main Features and Functions 4 Operation Logic 4 Label Description 5 Suffix Symbol 5 Specification 6 Parts and Assembly 7 YT 1200L 7 YT 1200R 7 Dimension 8 YT 1200L 8 YT 1200R 8 Installation 9 Safety Warning 9 Tools for Installation 9 YT 1200L Installation 9 YT 1200R Installation 12 Bracket Information 13 Piping Connection 16 Supply Pressure Condition 16 Pipe Condition 16 Piping Connection with Actuator 16 Single Acting Actuator 16 Double Acting Actuator 17 Adjustment 17 Adjustment Cam 17 Adjustment Zero 18 Adjustment Span 18 Adjustment A M Switch Automatic Manual 19 Adjustment Seat Adjuster 19 Troubleshooting 20 Se INDIAN SALES PARTNER VONG Co Gas Pneumatic Positioner YT 1200 Series 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 st
12. T 1200L to the bracket which was produced in earlier step by using bolts lt Figure 1 gt Please refer to backside of the product for size of bolts The standard size of bolt is M8 X 1 25P and other bolt sizes are available Please contact YTC sales department lt Figure 1 gt mA ansu E mm ew E IWIN im E ia INDIAN SALES PARTNER YOUNG THON Ce ba Pneumatic Positioner YT 1200 Series 3 Attach YT 1200L with bracket to the actuator yoke DO NOT TIGHTEN COMPLETELY 4 Connect YT 1200L feedback lever to the actuator clamp The gap on the YT 1200L feedback lever is 6 5mm The connection bar thickness should be less than 6 3mm lt Figure 2 gt lt Figure 2 gt 5 Connect air filter regulator to the actuator temporarily Set supply pressure of the regulator in order to position the actuator clamp at 50 of valve stroke lt Figure gt 3 lt Figure 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 M e reduce hysteresis lt Figure 4 gt 8 40 50 60 A 2 m 10 ansu E ew IWIN km E k INDIAN SALES PARTNER YOUNG THO
13. TI ae ey WI lt Figure 14 YT 1200L gt lt Figure 15 YT 1200R gt iri 16 aA A ansu mm ew IWIN imi i INDIAN SALES PARTNER YOUNG THON Ce kaf Pneumatic Positioner YT 1200 Series Double acting actuator For YT 1200 series double acting type when inputting current signal supply pressure is out from OUT1 Please refer to lt Figure 16 amp 17 gt oo lt Figure 16 YT 1200L gt lt Figure 17 YT 1200R gt Adjustments 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 Check whether actuator s angle is at the initial point After checking the initial point release the hexagonal flange nut and adjust the position of the bearing so it is at 0 point lt Figure 18 gt When produced the cam is set as RA Counter clockwise xN 2 Clockwise
14. ces please send the product to YTC for repair 4 Check if feedback lever has been installed properly 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 YTC for repair 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 YTC for repair 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 Actuator only operates by On Off 1 Check pipe connection 2 Check cam direction 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 not too high 3 Check if supply air pressure level is stable from the regulator If the level i
15. ent temperature of 208 absolute pressure of 760mmHg and humidity of 65 Please contact us for the more detailed specification INDIAN SALES PARTNER VONG Co Gas Pneumatic Positioner YT 1200 Series Parts and Assembly TORQUE MORTOR PILOT VALVE FEEDBACK SHAFT SPAN UNIT FEEDBACK LEVER BASE BODY lt YT 1200L gt WR 3 PILOT VALVE SPAN UNIT CONNECTOR FEEDBACK SHAFT TORQUE MORTOR ZERO UNIT BASE BODY FEEDBACK LEVER lt YT 1200R gt AAI Fl f ERSE E ew INDIAN SALES PARTNER TOG o Pneumatic Positioner YT 1200 Series Dimensions 186 76 5 16 133 PT 8 aga N f g Troe T ig fr oS E F 8 4 4 PT NPT 1 8 Lye i 8 M8x1 25P Dp 10 4 PT NPT 1 4 lt YT 1200L Dimension gt 186 765 25 E re gi 3 AR s 2 2 8 LI g 2 4 4 PT NPT 1 8 0 H 8 M8x1 25P Dp 10 4 PT NPT 1 4
16. r spool exhaustion This would cause spool to rise upward As the spool rises it pushes format As the actuator s inner For graphical diagram please refer Input Signal 1 Flapper i Stroke nm a m Nozze gt ay m Actuator Input Mechanism Mechanism elay Output Stabilizer Spring Feedback Com Feedback Spring Mechanism Lever lt Figure 1 gt Irm 4 ERSE E Fm my E 5 im INDIAN SALES PARTNER Wo TOG TOON o ts Pneumatic Positioner YT 1200 Series Label Description MODEL NO YT 1200 INPUT SIGNAL 315 psi 0 2 1 0kgf cm SUP PRESSURE 20 100 psiG 1 4 7 0kgt cr G SERIAL NO 284567890 z gt gt POSITIONER Model Number Indicates model name and any options if any Input Signal Indicates current input signal range Supply Pressure Indicates the range of supply pressure Serial Number Indicates unique serial number Suffix Symbol YT 1200 series follows suffix symbols as follows YT 1200 O 2 3 4 5 2 N N N N N N XK KN KX N 0 XN 2 0 K 1 Motion Type L Linear R Rotary DXEDDDDDODDDDDDDDOD DDD DDD DX 2 Acting Type S Single D Double lt 11 3 Feedback Lever
17. ructure 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 approval from Young Tech Co Ltd South Korea Manufacturer Warranty 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 negligences Itis 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 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
18. s unstable replace the regulator Hysteresis is too low 1 In case of double acting actuator check if seat adjustment has been properly done Please contact YTC for any further inquiries regarding the seat adjustment INDIAN SALES PARTNER A 2 90 wit i Wr Pneumatic Positioner YT 1200 Series 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 A 2 mI 2 sue ew IWIN imi i INDIAN SALES PARTNER YOUNG THON Ce ba
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