Tokyo keiki Esw series User manual

DocumentNo[TS19‐005]

Total46pages(text,38pages)



ESWSeries

ElectronicPressureSwitch



ESWS‐10

SettingUnit



INSTRUCTIONMANUAL



Toinsuresafetyinproducthandlinganduse,thoroughlyreadthecontents

ofthisinstructionmanual.  Keepthisinstructionmanualinahandyplace

foreasyreferral. 



FluidPower&ControlSystemsCo.

SafetyPrecautions [TS19‐005]

(

ｉ

)

SafetyPrecautions

Thesafetyprecautionsdescribedinthismanualshouldbestrictly observedinorder toinsuresafeand correctuseof the

product.



SafetyConventions

WARNING

Indicates a potentially hazardous situation which, if not avoided, may result in death or

seriousinjury. 

CAUTION

Indicates a potentially hazardous situation which, if not avoided, may result in personal

injuryorpropertydamage. 



GeneralHandling

WARNING

Products are precision electronic devices. Do not attempt to disassemble or modify them as damage,

malfunctionorotherproblemscouldresult.

Immediatelystopoperationandtheturnpoweroffiftheproductsemitsmoke,strangeodor,orunusualnoise

orwhensomeotherabnormalordangerousconditionisdetected.Continuedusemayleadtosystem(hydraulic

equipment,mechanicalequipment)malfunction,fireorotherseriousaccidents.

Do not subject pressure switch to pressures beyond rated pressure.  Excessive pressures could damage or

breakthepressureelementandcauseinjuryand/ordestructionofsurroundings. 

Usingunspecifiedvoltagecouldcausefiresorelectricalshock. 

Donotsubjectproductstoexcessiveweight,vibrationorimpactthatcoulddamageorbreakproducts,cause

leakageofmeasurementmediumthatcanleadtoinjuryordamagetothesurroundings. 

Products are not explosion‐proof.  Do not use in hazardous areas where flammable or explosive gases or

liquidsmaybepresent. 

Performwiringcorrectlyaccordingtothewiringdiagramintheinstructionmanual.  Incorrectwiringcanresult

inproductfailureorfire. 

Usewithinoperatingtemperaturerange.  Useofproductsoutsidetheoperatingtemperaturerangecanlead

toproductfailureandcauseinjuryaswellasdamagetothesurroundings. 

Carryoutinstallationinaccordancewiththeinstructionmanual.

Theseprecisionelectronicdevicesshouldbekeptawayfromsourcesofelectricalnoise.  Usenoisefilters,etc.,

toreduceelectricalnoisefromthepowersourcestotheseproducts. 





SafetyPrecautions [TS19‐005]

(

ｉｉ

)

Installation

WARNING

Donotattempttochangewiringorinsertordisconnecttheconnectorwhiletheproductsareenergizedasit

couldleadtoseriousaccidents.



CAUTION

When installing the pressure switch ina pressure line, do not install itwhile the lineisfilled with liquid.  As

liquid is incompressible, tightening the pressure fitting could generate high pressures that could damage the

pressureswitch.  Wheninstallingthepressureswitch,removeliquidfromthepressureline,leavingabout15to

20mmofairandthentightenthepressurefitting.  

Donotinsertwiresorothersharpobjectsintothepressureinletastheycoulddamagethediaphragmandaffect

normaloperationofthepressureswitch.



Connections

WARNING



Donotattempttochangewiringorinsertordisconnecttheconnectorwhiletheproductsareenergizedasit

couldleadtoseriousaccidents.



Operation

WARNING

Ifthesettingunitistoberecharged,usenickelhydride(NiMH)batteriesonly.UsingbatteriesotherthanNiMH

batteriesmaycauseseriousaccidents.



Storage

CAUTION

 Donotstoreinthefollowinglocationsthatcouldcauseproductfailureordamage. 

Locationsthatexposeproductstowater.

Locationswithatmosphericpressure,temperature,humidity,ventilation,sunlight,dust,salt,aircontainingsulfur,

etc.,conditionsthatcouldadverselyeffecttheproducts.

Locationsthataresubjecttovibrationandshock(includingduringtransport).

Locationswherechemicalsarestoredandplaceswheregasisgenerated.

Locationsexposedtodirectsunlight,hightemperaturesinsidevehicles,etc.



UsingthisManual [TS19‐005]

(

ｉｉｉ

)

UsingthisManual

Aboutthismanual

ThismanualprovidesinstructionontheoperationandhandlingoftheESWSerieselectronicpressureswitch 

andESWSsettingunit.Thismanualshouldbethoroughlyreadandunderstoodinordertoinsurethatoperation

andhandlingisdonecorrectly.

Thismanualisintendedfortechnicalpersonnelwithbackgroundsinmechanical,electrical,orcontrol

engineering.

Personnelwhohandlethisproductarerequiredtohaveknowledgeandbackgroundsinelectrical,electronics,

hydraulics,andautomaticcontroltechnology.



Pointstoobserve

Thefollowingpointsshouldbeobservedwithregardtothismanual.

Pleasereadthismanualcarefullyandthoroughly.

Importantinformationiscoveredandthecontentsshouldbefullyunderstood.

Maintainmanualwithcareandkeepmanualclosebyforreadyreference.

Thismanualshouldbeprovidedtothepersonnelwhoactuallyhandletheproduct.Intermediariessuchassales

agents,distributors,orresellersshouldmakesurethatthismanualisprovidedtosuchpersonnel.

Ifthemanualislost,replaceimmediately.Ifyouhavelostthismanual,contactoursalesofficeorservicecenter

andorderareplacement.



Precautionsregardingproductprotection

Pleaseobservethefollowingprecautionstoensureproductprotection.

Performinstallationandwiringinacorrectmanner.

Donotuseproductsunderconditionsorenvironmentthatexceedspecifications.

Donotsubjectproductstoexcessiveweightormanhandling.

Productsareprecisionelectronicdevices.  Handlewithcare.

Contents [TS19‐005]

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ｉｖ

)

Contents



SafetyPrecautions...........................................................................................................................................i

UsingthisManual...........................................................................................................................................iii

Aboutthismanual...........................................................................................................................................................iii

Pointstoobserve.............................................................................................................................................................iii

Precautionsregardingproductprotection......................................................................................................................iii

Contents.........................................................................................................................................................iv

FiguresandTables............................................................................................................................................v

Introduction..............................................................................................................................................1

1.1

Overview...............................................................................................................................................................1

1.2

Modelcodes.........................................................................................................................................................1

1.3

Productdescription..............................................................................................................................................2

AppearanceandDimensions.....................................................................................................................3

2.1

Dimensionsandnomenclature.............................................................................................................................3

Specifications............................................................................................................................................5

3.1

Specifications........................................................................................................................................................5

3.2

Factorydefaultsettings........................................................................................................................................7

Functions..................................................................................................................................................8

4.1

PressureSwitchfunctions.....................................................................................................................................9

4.2

SettingUnitfunctions.........................................................................................................................................11

InstallationandConnections...................................................................................................................16

5.1

Installation..........................................................................................................................................................16

5.2

Piping..................................................................................................................................................................16

5.3

Connectionsandwiring......................................................................................................................................17

5.4

Wiringconnectionexamples..............................................................................................................................17

Operation...............................................................................................................................................20

6.1

Flowofoperation...............................................................................................................................................20

6.2

SettingUnitoperation........................................................................................................................................21

6.3

Operation............................................................................................................................................................22

StorageandMaintenance.......................................................................................................................36

Troubleshooting......................................................................................................................................37



Contents [TS19‐005]

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ｖ

)

FiguresandTables



FIG1PressureSwitch...........................................................................................................................................................3

FIG2SettingUnit..................................................................................................................................................................4

FIG3Operatingtemperatureandoutputcapacityrelationship..........................................................................................5

FIG4Hysteresismodeoperation.......................................................................................................................................10

FIG5Windowcomparatormodeoperation......................................................................................................................10

FIG6Deadbandofsettingpoints(A),(b)...........................................................................................................................11

FIG7Batterylifeindicatoricon..........................................................................................................................................14

FIG8M12connectorpinarrangement..............................................................................................................................17

FIG9NPNopencollector,example1(wiringtorelay)......................................................................................................18

FIG10NPNopencollector,example2(wiringtophotocoupler)......................................................................................18

FIG11NPNopencollector,example3(voltageoutput)....................................................................................................18

FIG12PNPopencollector,example1(wiringtorelay).....................................................................................................19

FIG13PNPopencollector,example2(wiringtophotocoupler)......................................................................................19

FIG14PNPopencollector,example3(voltageoutput)....................................................................................................19

FIG15Settingandmeasurementoperationflowchart.....................................................................................................20

FIG16SettingUnitnomenclature......................................................................................................................................21

FIG17Withrubbercapremoved.......................................................................................................................................23

FIG18SettingUnitbatteryinsertionandturningpowerON.............................................................................................23

FIG19IRextensioncableattachment................................................................................................................................24

FIG20Mainmenutosettingmenuscreendisplayexample.............................................................................................25

FIG21Functionsettingscreenexample.............................................................................................................................25

FIG22COMPARATORsettingscreenexample...................................................................................................................26

FIG23DELAY(ON,OFF)screendisplay..............................................................................................................................27

FIG24SPECIALscreendisplay............................................................................................................................................28

FIG25Stepstocreatenewsettingdata,editingandwritingsaveddata..........................................................................28

FIG26Savesettings............................................................................................................................................................29

FIG27Measurementmodeoperationflowchart..............................................................................................................30

FIG28Measurementmodedisplay....................................................................................................................................31

FIG29Top/bottomhold/loopcheckscreentransition..................................................................................................32

FIG30Infraredcommunicationsettingoperation.............................................................................................................33

FIG31Deviceinformationscreendisplay..........................................................................................................................34

FIG32Endsettingoperation..............................................................................................................................................34

FIG33RechargingSettingUnit...........................................................................................................................................35



TABLE1Productdescription................................................................................................................................................2

TABLE2Generalspecifications.............................................................................................................................................5

TABLE3Enviromentalandstructuralspecifications............................................................................................................6

TABLE4SettingUnitspecifications......................................................................................................................................6

TABLE5PressureSwitchfactorydefaultsettings................................................................................................................7

TABLE6SettingUnitfactorydefaultsettings.......................................................................................................................7

TABLE7PressureSwitchfunctions.......................................................................................................................................8

TABLE8SettingUnitfunctions.............................................................................................................................................8

TABLE9M12connectorterminalfunctions.........................................................................................................................9

TABLE10LEDfunctions........................................................................................................................................................9

TABLE11Functionalsettings...............................................................................................................................................11

TABLE12Comparatorpressuresetting..............................................................................................................................12

TABLE13Keylockfunction.................................................................................................................................................12

TABLE14Measurementfunctions.....................................................................................................................................13

TABLE15SettingUnitconfigurationsettings.....................................................................................................................14

Contents [TS19‐005]

(

ｖｉ

)

TABLE16RecommendedtighteningtorqueofSUS304mountingcomponent.................................................................16

TABLE17M12connectorpinfunction...............................................................................................................................17

TABLE18SettingUnitcontrolanddisplayfunctions.........................................................................................................21

TABLE19Listofoperations................................................................................................................................................22

TABLE20Comparatoroperationpressuresettings...........................................................................................................26

TABLE21TroubleshootingPressureSwitch.......................................................................................................................37

TABLE22TroubleshootingSettingUnit..............................................................................................................................38

[TS19‐005]

‐1‐

Introduction

WARNING

Productsareprecisionelectronicdevices.Donotattempttodisassemble or modify products as damage,

malfunctionorotherproblemscouldresult.

1.1

Overview

TheESWSerieselectronicpressureswitch(PressureSwitch)comparesoutputfromasemiconductorpressure

sensorandperformsswitchingfunctions,allelectronically.  ThePressureSwitchhasnomovingpartsand

boastsexcellentdurabilityandvibrationcharacteristics.ThededicatedESWSsettingunit(SettingUnit)forthe

ESWSeriesPressureSwitchcheckspressuremeasurementsandsetsdetectionpressureandcontactpoint

output.  



1.2

Modelcodes 

1.2.1

ESWElectronicPressureSwitch



1.2.2

ESWSSettingUnit



[TS19‐005]

‐2‐

1.3

Productdescription

 EachproductisdescribedandreferredtointhismanualasindicatedinTABLE1.

TABLE1Productdescription

Product Description

Electronicpressureswitch(ESWSeries) PressureSwitch

Settingdevice(ESWS‐10)forESWelectronicpressureswitch  SettingUnit



[TS19‐005]

‐3‐

AppearanceandDimensions

2.1

Dimensionsandnomenclature

2.1.1

PressureSwitchdimensionsandnomenclature

FIG1PressureSwitch

[TS19‐005]

‐4‐

2.1.2

SettingUnitdimensionsandnomenclature



FIG2SettingUnit

[TS19‐005]

‐5‐

Specifications

3.1

Specifications

3.1.1

PressureSwitchspecifications

TABLE2Generalspecifications

Description Specifications

Pressurerange 0to1MPa,0to10MPa,0to25MPa,0to35MPa,0to50MPa

Absolutemax.pressure

１

Doublepressurerange,but1.5timesatpressureranges35MPaorabove

Connectionthread R1/4,G1/4A,G3/8A

Ratedpowersourcevoltage 9to36VDC

Consumptioncurrent Lessthan30mADC(noload)

Outputspecification Opencollectoroutput

Outputcontactpoints 2

Outputcapacity  NPN,lessthanDC36V;PNP,powersourcevoltagerange

Outputcapacitymayvarywithoperatingtemperature.  SeeFIG3.

Response  Lessthan1ms

Repeatability ±0.2%F.S.

Settingaccuracy ±(0.5%F.S.+1count)

Includinglinearity,hysteresis



Settingmethod IRcommunicationtoSettingUnit

*1 Allowablemaximumpressureistheupperlimitofpressurevaluewhichmaysafelybe

appliedtotheproductandremaininspecificationoncepressureisreturnedtothe

ratedpressurerangewithacoupleoftimesoverpressurizationofabout10minutes

duration.Productperformanceatcontinuousoverpressureisnotguaranteed. 



FIG3Operatingtemperatureandoutputcapacityrelationship



[TS19‐005]

‐6‐

TABLE3Enviromentalandstructuralspecifications 

Description Specifications

Operatingtemperaturerange ‐20to70°C(nofreezing,nocondensation)

Operatinghumidityrange 85%RHorlesswhenpressurerangeforpressurerangelessthan

2MPa(nofreezing,nocondensation)

Storagetemperatureandhumidityrange ‐30to80°C,95%orless(nofreezing,nocondensation)

Withstandvoltage 250VACat1minute,fittingtoinput/outputterminalscollectively

Insulationresistance 100MΩormore(at50VDC),fittingtoinput/outputterminals

collectively

Vibrationresistance 300m/s

,10to2,000Hz,JISC60068‐2‐6

Impactresistance 1,000m/s2;6ms;X,Y,Zforwardandreversedirection,3times;

JISC60068‐2‐27

Caseconstruction Indooruse

(Protectionclass:IP67.  HoweverIP65at1MPa,JISC0920)

Casematerial SUS304,PESresin



Wettedmaterial

Diaphragm:SUS630

Fitting:SUS304,SUS630(connectionthreadforabove20MPa:G1/4A)

Orifice:  S45C

Materialofprotectivecap NBR

Connector  M12connector(4P);specialM12connectorcable

Protectioncircuit Reversepolarityprotection,short‐circuit(overcurrent)protection

Weight Approximately100g

*1 Polarsolventsandstrongacidssuchasacetoneandchloroformmaycorrodecase.

Ketoneorestersubstancesmaycausestresscracking. 

3.1.2

SettingUnitspecifications

TABLE4SettingUnitspecifications

Description Specifications

Communication Infrared

Range

andangle Lessthan300mm,lessthan±15°

Powersource Two,AAAnickel‐hydrideoralkalinebatteries2

Recharging RechargeablewithUSBconnector(USB2.0,Micro‐B(male))fornickel‐hydridebatteries. 

Operatingtemperature  0to40°C(incaseofnickel‐hydridebatteries)

Storagetemperature  ‐10to50°C(batteriesremoved)

Protection Indoorspecifications(nonwaterproof)

Casematerial ABSresin

Covermaterial Siliconerubber,blue

Accessories Infraredextensioncable(2m)





[TS19‐005]

‐7‐

3.2

Factorydefaultsettings

 TABLE5andTABLE6showthefactorydefaultsettingsofthePressureSwitchandSettingUnitrespectively. 

Asoutputpolarity,settingpressureanddeadbanddifferaccordingtothemodel,pleaserefertothereference

drawingordeliveryspecifications. 

TABLE5PressureSwitchfactorydefaultsettings

Description Outputspecifications

Outputpolarity Varieswithmodel

Comparatoroperation Hysteresismode

Settingpressure Varieswithmodel

Deadband Varieswithmodel

ON,OFFdelay 0s

Filter None

Keylock Unlock



TABLE6SettingUnitfactorydefaultsettings

Description Construction

IR(infraredcommunication) int(IRextensioncablenotused)

Sleeptime none

Backlight ‐9

Contrast 0



[TS19‐005]

‐8‐

Functions

ThefollowingtableslistthefunctionsofthePressureSwitchandSettingUnit.

TABLE7PressureSwitchfunctions

Function/Mode Description Pagereference

Connector  EquippedwithM12(4P)connectors 4.1.1(P.9)

Display DisplaysPressureSwitchoperationstatuswithpowersourceLED/outputLED. 4.1.2(P.9)

Comparator Hysteresisorwindowcomparatoroperation 4.1.3(P.10)

TABLE8SettingUnitfunctions

Function/Mode Description Pagereference

Search

(SEARCH) Acquireserialno.ofPressureSwitchtobeset 4.2.1(P.11)

Setting

(SETTING)

Pressure,deadband 4.2.2



1)(P.11)

ComparatorON/OFFdelaysetting 4.2.22)(P.12)

Outputpolarity

4.2.23)(P.12)

Comparatoroperationmode

Filter

Specialfunction 

(IRcommunicationLOCK/UNLOCK) 4.2.24)(P.12)

Measurement

(MEASURE)

Pressure 4.2.31)(P.13)

Changesettingpressure 4.2.32)(P.13)

Zeropointadjustment 4.2.33)(P.13)

Peakhold  4.2.34)(P.13)

Loopcheck 4.2.35)(P.13)

Memory

(MEMORY)

Createmeasurementdata(max.12data),

save,copy 4.2.4(P.14)

Configuration

(CONFIG)



IRcommunicationcableextensionused/notused

4.2.5(P.14)

Timeuntilsleepmode

LCDbacklight/contrast

Deviceinformationdisplay

(About...) BatteryvoltageandSettingUnitsoftwareversiondisplay 4.2.6(P.14)

Batterylifeindicator  Remainingbatterylifeicon 4.2.7(P.14)

Recharging RechargeSettingUnit(fornickel‐hydridebatteries)4.2.8(P.15)



[TS19‐005]

‐9‐

4.1

PressureSwitchfunctions

4.1.1

Connectorfunctions

ThePressureSwitchincorporatesanM12(4pole)connectorforinput/output.  Thepinarrangementand

terminalfunctionsoftheM12connectoraredescribedinTABLE9. 

TABLE9M12connectorterminalfunctions

Pinlayout Terminal

no. Description Function



1 Powersource+ +Powerinput

Outputcommon(NPN)

2 Output2(OUT2) Opencollector

3 Powersource– –Powerinput

Outputcommon(PNP)

4 Output1(OUT1) Opencollector



4.1.2

Displayfunction

TheoperationalstatusofthePressureSwitchcanbecheckedbytheLEDsonthePressureSwitch,byconfirming

thecoloroftheLEDandwhetheritisONorOFF.  FunctionsofeachLEDarelistedinTABLE10.

TABLE10LEDfunctions

LEDlayout Description Function

PowerLED

NPNsetting Lightsblue

PNPsetting Lightsgreen 

IRtransceiving Flasheswhite

OutputLED

OUT1

OUT1,ON Lightsred

OUT1,OFF Lightoff

OutputLED

OUT2

OUT2,ON Lightsred 

OUT2,OFF Lightoff





[TS19‐005]

‐10‐

4.1.3

Comparatorfunction

ThecomparatorfunctioncomparesthepressurethatisappliedtothestainlesssteeldiaphragmofthePressure

SwitchagainstadeterminationpressurevaluethatissetinthePressureSwitchtoturnitONorOFF.  Two

comparatoroperatingmodes‐hysteresismodeandwindowcomparatormode‐canbeselected.  Usethe

SettingUnittosetthecomparatoroperatingmode.   

Hysteresismodeoperation

IntheHysteresismodethesettingpressurecanbesetastheupperlimitorlowerlimit,dependingonthe

deadbandsetting.



“Upperlimitsetting”

Whenyouselectapositivenumber(including0)forthedeadband(

⊿

）

,thecomparatorwilloperatewiththe

settingpressure(P)astheupperlimit.

“Lowerlimitsetting”

Whenyouselectanegativenumberforthedeadband(

⊿

）

,thecomparatorwilloperatewiththesetting

pressure(P)asthelowerlimit. 



Upperlimitsetting Lowerlimitsetting

FIG4Hysteresismodeoperation

Windowcomparatormodeoperation

WithoperationintheWindowcomparatormode,comparatoroperationvariesdependingonhowlargeorsmall

thesettingpressure(b)isrelativetosettingpressure(A).  Adeadbanddifferentialof1%F.S.isautomaticallyset

internallybetweensettingpoints(A)and(b). 

Inthecasethatsettingpressure(A)

≦

 settingpressure(b),thecomparatorwillbeONbetween(A)and(b).

Inthecasethatsettingpressure(A)

＞

 settingpressure(b),thecomparatorwillbeOFFbetween(A)and(b).



Settingpoint(A)

≦

 Settingpoint(b) Settingpoint(A)>Settingpoint(b)

FIG5Windowcomparatormodeoperation

[TS19‐005]

‐11‐

SettingPoint(A) SettingPoint(b)



FIG6Deadbandofsettingpoints(A),(b)

4.2

SettingUnitfunctions

4.2.1

Searchfunction

ToestablishinfraredcommunicationbetweentheSettingUnitandPressureSwitchformeasurementand

setting,theSettingUnitmustacquiretheserialnumberofthePressureSwitchviatheIRconnection.Inaddition

toacquiringtheserialnumber,theSettingUnitatthesametimealsoreads‐inthePressureSwitch’spressure

rangeandsettings(pressure,deadband,outputpolarity,comparatoroperationsettings).

WhencommunicatingwithanotherPressureSwitch,theserialnumberofthatPressureSwitchmustfirstbe

similarlyacquired. 



4.2.2

Setting

VariousPressureSwitchsettingsareperformedwiththeSettingUnit’ssettingfunctions.Thesearedetailedin

TABLE11.  Inthesettingoperation,ifthePressureSwitchisnotrecognizedbytheSettingUnit,thesearch

functiondescribedin4.2.1isactivatedtoestablishtheIRcommunicationlinkbetweenthePressureSwitchand

SettingUnit.PressureSwitchsettingsarechangeddependingonthecontentofthevarioussettings

transmittedbytheSettingUnit.

TABLE11Functionalsettings

Function SettingsandSelections

Pressure,deadband

(COMPARATOR) SetdetectionpressureofHysteresisorWindowcomparatormodes.

Delaytime

(DELAY(On,Off)) SetcomparatorONorOFFdelaytime

Function 

(FUNCTION)

Outputpolarity

(OPENCOLLECTOR) Selectoutputpolarity(NPN/PNP)

Comparatoroperation

(COMPARATOR) SelectHysteresis(Hys)modeorWindowcomparator(Win)mode

Filter

(FILTER)

Setdigitalfilter

“non(none),10ms,50ms,150ms,500ms,1s,5s”selectable

Unitswitching(UNIT) Unitswitching(MPafixed) 

Special

(SPECIAL)

Keylock

(KEYLOCK)

Setkeylock

Select“LOCK”or“UNLOCK” 

Versiondisplay

(P_SW) DisplayprogramversionofESW



[TS19‐005]

‐12‐

Pressure,deadbandsetting(COMPARATOR)

ReferenceTABLE12andsetthedetectionpressurefortheHysteresismodeortheWindowcomparator

mode. 

 TABLE12Comparatorpressuresetting

Comparatormode Settingvalue

Hysteresismode P1:OUT1settingpressure,

⊿

P1:OUT1deadband

P2:OUT2settingpressure,

⊿

P2:OUT2deadband

Windowcomparatormode A1:OUT1settingpressureA1,b1:OUT1settingpressureb1

A2:OUT2settingpressureA2,b3:OUT2settingpressureb2



Delaytimesetting(DELAY(On,Off))

SetthetimedelayforOnorOffcomparatoroutputswhenthepressureexceedsthepressuresetting(including

deadband).  Delaytimecanbesetwithin0and2.00seconds. 



Functionsetting(FUNCTION)

Forfunctionsetting,outputpolarity(OPENCOLLECTOR),comparatoroperation(COMPARATOR),andfilter

(FILTER)functionscanbeselected.ReferenceTABLE11forfunctionalsettings(FUNCTION).  

ThefilterfunctioniseffectivewhenthepressurefluctuationissevereandtheLCDdisplayisdifficulttoread. 

Specialfunctionsetting(SPECIAL)

Forspecialfunctionsetting,selectLOCK/UNLOCKforkeylock(KEYLOCK).  Thekeylockfunctionhaltsthe

infraredcommunicationfunctionofthePressureSwitchasdescribedinTABLE13.  Thekeylockfunctioncanbe

canceledbyactivatingthe“Searchfunction”within5minutesafterturningpowertothePressureSwitchon

again 



TABLE13Keylockfunction

KEYLOCK Function

LOCK TerminatesIRcommunication5minutesafterLOCKsettingorafterpoweristurnedon.

UNLOCK NormalIRcommunicationenabled. 





[TS19‐005]

‐13‐

4.2.3

Measurement(MEASURE)

MeasurementfunctionsaredescribedinTABLE14.  Inthemeasurementmode,itisnecessarytomaintain

constantinfraredconnectionbetweenthePressureSwitchandSettingUnitinorderfortheSettingUnitto

acquireinformationfromthePressureSwitchinrealtime.Ifinfraredcommunicationisdisconnectedformore

than1minute,measurementmodewillbecancelledbuttheconnectioninformationwiththePressureSwitch

willberetainedintheSettingUnitsomeasurementcanberesumedoncecommunicationisreestablished. 

TABLE14Measurementfunctions

Function Description

Pressuremeasurement

(PRS) Realtimedisplayofmeasuredpressure

Changesettingpressure

(SET)

Hysteresismode:settingofsetpoint,deadband

Windowcomparatormode:settingofsetpointA,b

Zeropointadjustment

(ADJ) Zeropointadjustment

Maximumpressuremeasurement

(TOP) Displayorclear(CLR)maximumpressurevaluemeasured

Minimumpressuremeasurement

(BTM) Displayorclear(CLR)minimumpressurevaluemeasured

Loopcheck

(LPC) Checkcomparatoroperationwithoutapplyingpressure



Pressuremeasurement(PRS)

ThisfunctionmeasuresthepressureappliedtothePressureSwitchanddisplaysthevalueinrealtime. 

Infraredcommunicationstatus,comparatoroperation,andpressuremeasurementvaluesaredisplayedinreal

time.ThedetectionpressurevaluesetinthePressureSwitchisalsodisplayed.

Changepressuresetting(SET)

ThisfunctionchangesthePressureSwitch’spressureanddeadbandsettingsduringmeasurement.  Settings

thatcanbechangedarethesameasdescribedunder4.2.21)Pressure,deadbandsetting(COMPARATOR).

Zeroadjustment(ADJ)

ThisfunctionenableszeroadjustmentofthePressureSwitchduringmeasurement.  Zeroadjustmentiscarried

outbyventingthepressureinlettotheatmosphere.  Errorwilloccuriftheshiftinzeropointexceedsthe–5to

5%F.S.pressurerangeandzeroadjustmentcannotbeperformed.

Peakholdmeasurement(TOP/BTM)

Themaximumpressurevalue(TOP)andminimumpressurevalue(BTM)detectedwhenpressureisappliedto

thePressureSwitchduringmeasurementisdisplayed.Thepressurevaluedisplayedisthepressuremeasured

whilepowerissuppliedtothePressureSwitch.  Fornewmaximumpressurevalue/minimumpressurevalue

measurement,itisnecessarytoresetthemeasurementvaluewiththe“CLR”function. 

Loopcheck(LPC)

ThisfunctioncheckscomparatoroperationofthePressureSwitchduringmeasurement.

Withtheloopcheckfunction,itisnotnecessaryforpressuretobeappliedandoperationofthecomparatorcan

becheckedwithasimulatedpressuresetting. 

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