kinetrolel电气定位器安装操作维护说明

KINETROL EL电气定位器安装操作维护说明1、名目页码 章节1-名目2-安装2 2-0简介2 2-1在调整器直接安装局部222334435555666-77-888-9999-10101112

2-2安装不连续远程位置调整器空气和电力连接空气供给DIN插头选择远程位置调整器信号功能示意图表安装介绍设置行程速度设置限位开关凸轮概述—电气设置默认设置和重设程序进入与退出安装模式自动完毕搜寻程序比例增加与衰减设置低电流点与高电流点设置远程位置调整器的顺时针和逆时针回动弱信号运行时方向的转变重设反响罐电可擦除只读存储器求校错误选择设计非线性曲线图表设置可选跨距与调零可选底胶位监视器位置的调整维护及故障的去除安装2-0介绍远程位置调整器可以用来直接安装或者预备直接安装，在转动装置上或者单独在架子上通过2.12.2章可被无视。在调整器直接安装局部1所示，这是防止在确定方向上消灭并发问题M4槽沟顶部的螺丝保持红色塑胶输送盘在机体内。拆开连到伺服阀上的两根金属丝，用轴等抬起整个输送盘装配。在如图1所示的方向上将调整器机体闩紧到执行器上，要留意使O型圈在执行器出口密封的位置上。并使执行器的轴位于孔的正中心位置。对于07和大的样式，在执行器角落上方按2所示逆向反斜线安装弹簧。〔见用中间范围四周的轴将输送盘/“感应”一下执行器上的调整器。两个轴是否彼此恰当地在适宜的位置这是根本的问题，假设超出了90度角那么信号区轮子可能被迫离得太远并且在后来执行器运行的过程中对机械驱动可能产生损伤。在运行末尾用执行器安装到远程位置调整器上是可能的，但阅历告知我们这样的话对于执行器的移动方向产生错误的概率格外高。离散的远程位置调整器的安装设计与生产安装调整器和执行器之间的成套工具已经远远超出了我们这本手册的范围。调整9090度角，能保证这样的最简洁的方法是用指示器来安装不连续的部件。空气和电力连接空气供给连接空气供给连接到供给口处〔3.57bar之间,50100psi(ISO8573.1),这就意味着最大粒子尺寸是微米,最5mg4要擦掉轴封帽上的润滑油。DIN插头选择假设没有可选择的限位开关供给那么DIN插头开关的模式只能用远程位置调整器盒上的四向DIN插头。远程位置调整器信号4-20mA。此调整器给出0度到90度线性或者非线性信号。这个调整器是循环产生动〔此信号本身供给全部的电气动力，不需要其它分别的动力源。为供给足够的动力，需要接近6-8V信号电流来通过它。数字远程位置调整器示意功能图表〔见原件〕设置4-0介绍当调整器/执行器按应用程序联结安装完，如有必要要设置掌握调整。对大多数的应用程序来说工厂的设置都是很满足-4-20mA0-90整器被设置为最大运行速度，并且对于大多数应用程序来说它的增加和减小比例被调整到一个很好的值。在低电流和高电流设置中跳线应为“关闭”位置以给出一个线性的特性。假设要转变设置，认真阅读以下章节。设置设置运行速度使用排气量调整螺母来设置运行速度〔4速度。设置可选限位开关凸轮首先设置较低的凸轮。纵览-电气设置EL以通过操作线的刻度来测量，或者是曲线图表，在两个用户之间它的操作范围被具体说明。4-20mA的输入信号来产生动力的。通过三个按钮及可选参数的红色LED动进展校准的。全部的调整和校准数据可被自动存储。远程位置调整器可以通过线性或者非线性装置来操作。非线性操作可能过装配一个跨线联结O〔6所示位置OF线性装置进展操作直到完毕此状态。操作是否近按线性或者非线性进展，操作器有两种清楚的模式，正常模式与调整模式。默认的设置重设程序在一些操作模式下产生动力时，此调整器可以通过按压三个按钮〔UP，DOWN，SET〕对默认值进展重设置。全部现有的比例增益、衰减、曲线选择和校准数据等会被记录下来。这个程序对于防止在校准中产生错误是很很必要的。程序设置完毕之后此远程位置调整器应时常进展调整。进入与退出安装模式安装模式可以从常规模式中通过同时按压UP和SETPGAIN标UP或者DOWN按钮来进展选择。PGAIN—比例增益DAMP—衰减CURVE—非线性曲线选择LOW—低电流点校准HIGH—高电流点校准POT—设置范围分压计底部反响当需要的参数已经选择好用于调整，SET按钮已经按下允许调整进展—接近选择参数的指示SET按钮—指示灯连续闪亮。DOWN自动完毕搜寻程序〔可以是执行器的停顿或者是内部停顿。比例增益和衰减的设置选择安装模式，并且第一个参数先择是自动PGAIN—比例增益。按压SET按钮，PGAIN指UP或者DOWN按钮来增大或者29PGAIN的设置可被选择，4安装〔续〕4-7DAMP的设置时，远程位置调整器是活动的并且随输入信号而变化。这样，就可以找45度或更多后到达设置点，同时调整DAMP的安装，避开远程位置调整器过了设置点。重复这一过程，直至完成安装。安装完成以后，按SET按钮终止调整模式，此时，DAMPLED〔发光二级管〕会持续发光。低电流点〔LCP〕和高电流点〔HCP〕的设置〔电4-20mA5mA。低电流点和高电流点的距离越远，对远程位置调整器的调整就越准确。在线性和非线性的操作中都允许前向运动和反向运动，可以通过设置不同的输入信号范围加以区分〔如4-12mA,12-20mA〕,LOW向上LOW低发光二级管〕持续发光。按SET按钮，选择AdjustMod〔调整模式LOWLED将会LCP4-20mA范围内转变电流并不能使远程位置调整器在此时运动，在调整模式选定之前远程位置调整器的角度就已经选HCP的角度上，假设持续按向下按钮，远程位置调整器将会稳定的来回运动。假设轻按按钮，远程位置SET按钮记录下作为HCP的位置和电流。此时，远程位置调整器会有小的跳动，然后回到原来位置，远程位置调整器将会回到设置模式，此时HIGHLED将会持续发光。输入电流的变化将会在远程位置调整器上有反响。留意：一旦按了SET按钮，HCP的位置和信号将会存储为非易失性记忆的状态，在远程位置调整器离开设置模式之前将会始终保存。远程位置调整器的顺时针和逆时针回动定。然而，在失去信号时运动方向将不会转变。如何转变方向，见下一局部。失去信号时如何转变方向时，远程位置调整器使运动方向由伺服真空管的LCPHCP的设置无关。的运动位置，则需定制一个返回原来位置的弹簧装置。对于有两个同时作用的鼓励源的情形，在失去信号时，厂家设定该弹簧装置顺时针移动。为转变在失去电流信号时的运动方向，实行以下步骤：切断气流的供给和电流信号松开固定转动滑轮的螺丝旋转转动滑轮90度，留意橡胶垫圈不要脱落拧紧固定转动滑轮的螺丝交换兰色和红色的电线，转变罐内的连接，重拧紧螺丝连通气流供给和电流信号，重设置反响罐程序〔见下一局部〕重设置反响罐只有当罐偏离出厂设置或者要转变失去电流信号时的运动方向时，这一程序才是必要的。远程位置调整器电路需要反响罐在正确的角度，这样当鼓励源逆着缩小规模的完毕区域才能当在安装模式下，罐参数已经选好时，电路本身能够识别出动力增加时的电压。当罐调整适宜时，罐发光二极管由持续发光变为闪耀。为调整罐，首先通过连通空气供给和中断信号使鼓励源移动到缩小规模的完毕区域。当它已经在该位置时，假设弹簧返回装置不能逆着反向停顿，可以安装一个维护盘使之固定。假设装置是两个同时工作，可以简洁地切断空气供给使之固定。重接通电流信号，在4-20mA范围内任意选择一个电流值。选择安装模式，按住向上按钮直到罐二极管持续发光。松开罐的夹具螺丝，留意不要松开太多以至于脱离运送盘螺母。转动罐直到罐发光二极管由持续发光转为闪耀。重拧紧夹具螺丝并连通空气供给。假设需要维护盘，通过切断电流信号使其移向缩小规模区域，然后在气流供给持续的同时移动维护盘。电可擦除只读存储器求校错误每次校准或设定的数据都通过远程位置调整器电流写入电可擦除只读存储器。全部电可擦除只读存储器数据的检验和都经过计算并写入电可擦除只读存储器。因此，在电可擦除只读存储器写入程序的过程中消灭信号中断，检验和将不会被正确写入或者写入不全。信号中断后假设计算的检验和与存储的检验和不全都，远程位置调整器会进入一个错误程序并且不启动正常操作模式。消灭这一状况时，发光二极管会一个接一个的发光。假设消灭这仪状况，4.34.5-4.8中所介绍的方法校准。选择设计非线性曲线图表远程位置调整器可能操作线性或非线性设备。非线性操作是通过在远程位置调整器和低动力的远程位置调整器〔如输入电流为0mA〕之间连接跳线实现的。当远程位置调整器处于高动相反，当远程位置调整器处于高动力并且连通状态为关，或者反之亦然当电流保持为高动力状态将不会有从非线性操作到线性操作的变化。连接的位置只有在高动力时才是有效的。11条特性曲线中的SETUPCURVELED〔曲线发光二极管〕持LCPHCP电流信号的平均值，就可11条曲线中选择需要的曲线。例如，LCP20mA,HCP20mA,则需要设定输入电流12mA.LCPHCPSETCURVELED〔见图表8〕假设要选择其它曲线中的一条，按UP或DOWN按钮，当远程位置调整8所定义的曲线中选出不同的曲按设置按钮回到安装模式。UP或者DOWN并且在远程位置调整器离开校准和安装模式以前始终保存。LCPHCP标度点之间。假设输入电流低于LCPHCP，远程位置调整LCPHCP位置。事实上，将线性曲线作为缺省非线性曲线进展选择和当远程位置调整器处于高动力状态并且跳线为关时线性曲线的选择是不一样的。对于LCPHCP时，远程位置调整器的位置会依据线性关系超出LCPHCPLCPHCP点。设置可选跨距与调零角转播电路直接置于远程位置调整器电路的下方，虽然零点和跨距接近远程位置调整器电路中的孔洞，他们仍旧可以通过小的螺丝起子随时连接〔6〔4mA〕并设置零预制罐在一个期望的中继电流值。然后，为设置跨距，将远程位置调整器移动到最大信号点〔20mA两个设置直到都正确为止，由于在调整跨距的过程中会对零点的读数有影响，反之亦然。因此，往往要重调整几次。454－20mA，跳线要恰好能够连接两个插脚。调整罐可以在这两个数值之间调整。为了能更接近跳线，有必2－14－15可选底胶位监视器位置的调整O圈完成了粗安装，壳内凹槽在肯定程度上对安装起调整作用。黑色罩/O圈脱落。留意要与称量传送带模具相匹配。转动称量传送带，使其沿着O圈内部滑动。假设O圈被粘住，这样做会有肯定困难。照此移动，直到其逆着指示器/指示器模具尽可能的接近正确值。同时，应当固定盖子螺丝孔上方外壳中心有刻槽的位置。重装好螺丝，确保模具罩和密封O圈在外壳罩模具中。逆着模具螺丝转动外壳沟槽以调整指示器的位置，直到其到达最终位置。留意将螺丝放在沟槽的等价位置，这样壳相对于内部转动局部来说仍处于中心位置。然后拧紧螺丝。5维护及故障的去除EL远程位置调整器在供给干净，枯燥，无油的空气，无噪音电信号和顶峰值电压的状况下是在长时间内免于维护的。当盖子移动时，留意不要擦去轴边密封位置全部油脂。Kinetrol发行人取得进一步帮助。2故障修理指南50psi./3.5bar.4mA离散的部件－轴是否连接于正确的方位4－119页重安装反响罐是否空气的供给是干净，枯燥和无油的？部件的移动比预期慢50psi/3.5Bar?是否供给的空气为干净，枯燥和无油的？3〕运动中消灭急动状况44－11页重设置阻尼和设置点4〕对信号的变化反响不灵敏44－11页重设置阻尼和设置点5〕当远程位置调整器移动快速时设置点越过目标调整阻尼使之不越过目标4-SETUP(continue)4-7ThepositionerisactivewhileadjustingtheDAMPsetting,andcontinuestofollowtheinputsignal.ThisallowsthesignaltobewaggledtooptimizetheresponsewhilestilladjustingtheDAMPsetting.Trysteppingthesignalsuddenlysothatthepositionerapproachessetpointatfullspeedhavingtraveled45degreesormore,andadjusttheDAMPsettingtojustavoidovershoothere.Trythistravelingupanddownscale.Whentherightsettinghasbeenfound,presstheSETbuttonagaintoleaveAdjustMode–theDAMPLEDwillnowlightcontinuously.LOWCURRENTPOINT(LCP)ANDHIGHCURRENTPOINT(HCP)SETTINGSThepositionercharacteristiccanbeaccuratelycalibratedbysettingtwopoints,theLowCurrentPoint(LCP)andtheHighCurrentPoint(HCP).Eachpointisdefinedbyapositionandaninputcurrent.Thesepointscanlieanywhereintherangeoftraveloftheactuator,andintheinputsignalrangeof4to20mA.TheonlyotherrestrictionisthattheinputcurrentattheHCPmustexceedtheinputcurrentattheLCPbyatleast5mA.Toobtainthebestaccuracy,itisnecessarytoselectthetwopointsasfarapartaspossible.Inbothlinearandnon-linearoperationthisallowsforwardacting,reverseacting,andforwardorreverseactingsplitrangecharacteristicstobeimplemented(4-12mAor12-20mAforexemple).Tosetlcp,selecttheLOWparameterinSetupModebypressingtheUPbuttonuntiltheLOWLEDlightscontinuously.PresstheSETbuttontoselectAdjustMode,andtheLOWLEDwillblink.Ajusttheinputsignalcurrentwithintherange4-20mAtothevalueyou wanttodefinefortheLCP-notethatchangesininputcurrentwithinthe4-20mAbanddonotresultinpositionermovementatthisstage-thepositionerholdstheactuatorattheanglewhereitwasbeforeAdjustModewasselected,irrespectiveofinputcurrent.PresstheUpordownbuttonstomovethepositionertotheangleyouwanttodefinefortheLCP-ifyouholdthebuttondowncontinuously,thepositionerwilltraversetheactuatorsteadily,orifyougiveshortblipsitwillmoveapproximately1/40deg.Foreachblip,toallowpreciseedgingintotherequiredposition.Whentheactuatorisinexactlythepositionyouwant,andthesignalisadjustedtoexactlythevalueyouwant(thiscanbereadjustedafterthepositionhasbeenset),presstheSETbuttonagaintorecordthesignalandpositionastheLCP,whereupontheactuatorwillmakeasmallleapandthensettlebacktotheLCPagain,thepositionerwillreturntoSetupMode,andtheLOWLEDwilllightcontinuously.Thepositionerwillnowrespondtoitsinputsignalagain.Note:AssoonastheSETbuttonispressed,theLCPpositionandsignalarestoredinnon-volatilememory,andareretainedevenifthepositionerisdeenergisedbeforeleavingSetupMode.TosetHCP,selectthehighparameterinsetupmodebypressingtheupbuttonuntilthehighledlightscontinuously.Pressthesetbuttontoselectadjustmode,andthehighledwillblink..Adjusttheinputsignalcurrentwithintherange4-20mAtothevalueyouwanttodefinefortheHCP-notethatchangesininputcurrentwithinthe4-20mAbanddonotresultinpositionermovementatthisstage-thepositionerholdstheactuatorattheanglewhereitwasbeforeAdjustmodewasselected,irrespectiveofinputcurrent.PresstheupordownbuttonstomovethepositionertotheangleyouwanttodefinefortheHCP-ifyouholdthebuttondowncontinuously,thepositionerwilltraversetheactuatorsteadily,orifyougiveshortblipsitwillmoveapproximately1/40deg.Foreachblip,toallowpreciseedgingintotherequiredposition.Whentheactuatorisinexactlythepositionyouwant,andthesignalisadjustedtoexactlythevalue youwant(thiscanbereadjustedafterthepositionhasbeenset),pressthesetbuttonagaintorecordthesignalandpositionastheHCP,whereupontheactuatorwillmakeasmallleapandthensettlebacktotheHCPagain,thepositionerwillreturntosetupmode,andthehighledwilllightcontinuously.Thepositionerwillnowrespondtoitsinputsignalagain.Note:Assoonasthesetbuttonispressed,theHCPpositionandsignalarestoredinnon-volatilememory,andareretainedevenifthepositionerisdeenergisedbeforeleavingsetupmode.reversingclockwise/anticlockwisesenseofthepositionerTheLCPandHCPsettingsdescribedintheprevioussectioncanbeusedwithcompletesuccesstoreversethesenseofthepositioner,usingsettingssuchasthereversesettingslistedinTable1.However,thiswillnotchangethedirectionofmovementonlossofsignal-seethenextsectionforhowtosetthisasdesired.changingthedirectionofmovementonlossofsignalOnbeingdeenergisedwithairsupplystillfullypressurized(ie.Ondisconnectionofthesignal,orwhenthesignalfallsbelow3.5mA),thepositionermovestheactuatorinadirectionsetbythedeenergisedpositionoftheservovalve.ThisdirectionofmovementisindependentoftheLCPandHCPsettingsdescribedinthesectionsabove.Movementonlossofairpressureisunpredictablefordoubleactingpositioners –ifpositionneedstobeheldonlossofpressure,thenitisnecessarytoorderanexternalpressuresensinglockoutvalveassembly,andifadefiniteendoftravelpositionisrequiredonlossofpressure,thenitisnecessarytoorderaspringreturnunit.Ondoubleactingactuators,theunitisfactorysettomoveclockwise(asviewedfrompositionerlid)onlossofsignal.Onspringreturnactuators,theunitisfactorysettomoveinthespringreturndirectiononlossofair,oronlossofbothairandsignal,butitissettomoveclockwise(asviewedfrompositionerlid)irrespectiveofspringdirectiononlossofsignalonly.Tochangethedirectionofmovementonlossofsignal,carryoutthefollowingsteps:1- Disconnectairsupplyandsignal.Undoscrewholdingdownchangeoverblock(seeFigure6).Rotatechangeoverblock90degress,takingcaretokeeprubbergasketlinedupwithholesinbody.4- Re-tightenscrewholdingdownchangeoverblock.Swapblueandyellowwiresovertoreversesenseofpotconnection,andre-tightenscrews.Re–connectairsupplyandsignal,andcarryoutResettingFeedbackPotprocedure(seenextsection)4-11resettingthefeedbackpotThisprocedureisnecessaryonlyifthepothasbeenmovedfromitsfactorysetting,orifthedirectionofmovementonlossofsignalhasbeenchangedasinstructedintheprevioussection.Thepositionercircuitneedsthefeedbackpottobepositionedatthecorrectangle,suchthatitswiperreadstherightvoltagewhentheactuatorisagainstitsdownscaleendstop –ie.Againsttheendstopitreacheswhentheairsupplyisconnected,butthesignalisdisconnected.Thecircuititselfcanidentifythisvoltagewhenitispoweredupinsetupmodewiththepotparameterselected –whenthepotisadjustedcorrectly,thepotledchangesfromlightingcontinuouslytoblinking.Tosetthepot,firstmovetheactuatortothedownscaleendstopbyconnectingtheairsupplyanddisconnectingthesignal.Whenitisinthisposition,holdittherebyfittingakeeperplateiftheunithasaspringreturnsettofailagainsttheoppositestop,orbysimplydisconnectingtheairsupplyiftheunitisdoubleactingorhasaspringreturnsettofailagainstthisstop.Re-connectthesignal,andsettoanycurrentbetween4and20mA.Selectsetupmode,andpresstheupbuttonuntilthepotledlightscontinuously.Unclampthepotclampscrews,takingcarenottounscrewthemtoofarsuchthattheydisengagefromthenutsinthecarrierplate.Rotatethepotuntilthepotledchangesfromcontinuoustoblinkingillumination.Re-tightentheclampscrews,andreconnecttheairsuppy.Iftheunitneededakeeperplate,driveitdownscalebydisconnectingthesignal,andthenremovethekeeperplatewiththeairsupplyon.eepromchecksumerrorEachtimecalibrationorsettingdataiswrittentoEEPROM(non-volatilememory)bythepositionercircuit,achecksumofallEEPOMdataiscalculatedandwrittentoEEPROM.Henceifthereisapowersupply(ie.signal)interruptionduringtheEEPROMwriteprocedure,thechecksumwillnotbewrittencorrectly,oratall.Aftertheinterruption,duringitsinitializationroutinesthepositionercarriesoutachecksumcalculationofthedatastoredinEEPROM.Ifthenewlycalculatedchecksumandthestoredchecksumarenotidentical,thepositionerentersanerrorroutine,anddoesnotstartNormalModeoperation.Thisconditionisindicatedbythe LEDslightingoneagtertheotherinsequence.Ifthisconditionisachieved,carryouttheresetproceduredescribedinsection4.3,andthenrecalibrateasdetailedinsections4.5to4.8.selectingandsettingupnon-linearcurvesThepositionermaybeoperatedeitherasalinearornon-lineardevice.Non-linearoperationisenabledbyfittingajumperlinktothepositionerwiththepositioner(andpositionretransmitiffitted)powereddown(ie.Inputcurrentat0mA).Whenthepositionerispoweredupwiththelink on(seefigure6foritsposition),itwillthenoperateasanon-lineardeviceforaslongasitremailspoweredup.Conversely,whenthepositionerispoweredupwiththelink“off”orvice-versawhilethecircuitremainspoweredupwillnotcauseachangefromnon-lineartolinearoperation-thepositionofthelinkisonlyeffectiveduringpowerup.Whenthepositionerispoweredupwiththejumperlink on andtheairsupplyconnected,thenanyoneofelevencharacteristiccurvesmaybeselected.PresstheSETbuttontogointoSetupMode,andselecttheCURVEvariablebypressingtheUPbuttonuntiltheCURVELEDlightscontinuously.ItiseasiesttoselecttherequiredcurvefromtheelevenavailablebysettingtheinputsignalcurrenttomidwaybetweentheLCPandHCPsignalcurrentvalues-forinstance,iftheLCPis4mAandtheHCPis20mA,thensettheinputcurrentto12mAforthispurpose.WiththesignalsetatmidwaybetweenLCPandHCPvalues,selectAdjustModebypressingtheSETbutton,andtheCURVELEDwillnowblink.Thedefaultcurveisinfactthelinearcurvemidwaybetweentheothernon-linearcurves(seeFifure8).Toselectoneoftheothercurves,presstheUportheDOWNbutton,andobservethemovementofthepositionerasitspositionconformstotheintersectionofthemidvaluesignalwiththedifferentcurvesselectedfromthosedefinedinFigure8.Eachbuttonpressstepsfromonecurvetothenextone,untilatthelastcurvefurtherbuttonpresseshavenoeffect.Whenthedesiredcurvehasbeenselected,presstheSETbuttontoreturntoSetupMode.Note:AssoonastheUPorDOWNbuttonhasbeenpressedtoselectaparticularcurve,thenewcurveselectionisstoredinnon-volatilememoryandisretainedevenifthepositionerisdeenergisedbeforeleavingAdjustandSetupModes.EachcurveisscaledbetweenthetwocalibrationpointsLCPandHCP.IfinputcurrentsarereducedbelowLCPcurrentorincreasedaboveHCPcurrent,thepositionerstopsdeadattheLCPorHCPpositionrespectively.Thisisinfactthedifferencebetween thelinearcurveselectedasthedefault non-linear curve,andthelinearcurveselectedwhenthepositionerispoweredupwiththejumper“off”-thelattergivespositionsextrapolatedonthesamelinearcharacteristicbeyoudtheLCPandHCPpositionsforsignalsbeyodtheLCPandHCPsignals,whereastheformerstopsdeadattheLCPandHCPpositions.SETTINGOFTIONALANGLERETRANSMITSPANANDZEROADJUSTMENTSTheangleretransmitcircuitismounteddirectlyunderneaththepositionercircuit,anditsZEROandSPANpresetpotsareaccessibleusingasmallinstrumentscrewdriverthoughthetwoaccessholesinthepositionercircuit(seeFigure6).Connecttheairsupply,positionersignalandangleretransmitreadersupply.TosettheZERO,movethepositionertoitsminimumsignalposition(usually4mA),andsettheZEROpresetpottogivethedesiredretransmitcurrent.ThensettheSPANbymovingthepositionertoitsmaximumsignalposition(ususlly20mA),andadjustingtheSPANpresetpottogivethedesiredretransmitcurrent.Recheckandreadjustthesetwosettingsuntilbotharecorrect–astheSPANisadjusted,ithasasmalleffectontheZEROreading,andvice-versa,soafewreadjustmentsmaybenecessary.Theangleretransmitcircuitisfittedwithajumper,whichshouldbefittedtobrdgeitstwopinsifyouwantthecircuittoread4-20mAover45degreesornear,ratherthantheusual90degrees.Therangeadjustmentpotisadjustabletogiverangesinbetweenthesetwovalues.Togainaccesstothisjumper,itisnecessarytoremovethewholecarrierplateassemblyfromthepositioner–seeSection2-1forinstructionsonthis(2).ADJUSTMENTOFPOSITIONOFOPTIONALCLEARCONEMONITORIfyourpositionerisfittedwithaClearconepositionmonitor,youmayneedtoadjustitsangletoreadcorrectlyafteryouhavesetupthepostiioner.TheinternalO-ringslidestogiveacoarsesetting,andtheshellmountingslotsgiveafewdegreesoffineadjustment.Toadjustthepositionoftheanglescale,firstunscrewthetwoself-tappingstainlessmountingacrewswhichholdthetransparentoutershelltothelid,andliftofftheshellcompletewithitsblackmask/pointermoulding.Don losethescrewsorthesealingO-ringwhichsealsroundtheoutsideoftheshell-lidinterface.Ifyouhavereversedtheclockwise/anticlockwisesenseofthepositioner,youmayatthisstageneedtoreplacetheselfadhesiveanglescalestickerwithonemarkedintheoppositesense.Takecaretosticeittothescaleconemouldingaccurately.RotatethescaleconebyslidingitroundonitsinternalO-ringagainstthecouplinginsideit,whichislocatedonthepositionershaftsquare.ThismaytakesomeeffortiftheO-ringhasstuckon.Moveituntilitisreadingasnearcorrectlyasyoucanachieveagainstthepointeronthemask/pointermoulding,whichyoushouldholdinpositionwiththeoutershellmountin