Riken Keiki RM-592 Instruction Manual

PT1E-0971
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•RequestfortheCustomers
•Readandunderstandthisoperatingmanualbeforeusingthedetector.
•Youmustoperatethedetectorinaccordancewiththeoperatingmanual.
•Regardlessofwarrantyperiod,weshallnotmakeanycompensationforaccidentsanddamage
causedbyusingthisproduct.
Thecompensationshallbemadeonlyunderthewarrantypolicyofproductsorparts
replacement.
•Becausethisisasafetyunit,aregularmaintenanceforeverysixmonthsanddaily
maintenancemustbeperformed.
•Ifyoufindabnormalitiesinthedetector,pleasenotifythemtoourlocalrepresentative
immediately.
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OPERATINGINSTRUCTIONMANUAL
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FOR
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INDICATOR/ALARMUNITRM-592

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1
INDEX
１．PRODUCTOUTLINE
１−１． Inthebeginning……………………………………………… 3
１−２． Applicationforuse…………………………………………… 3
１−３． Identificationofeachcautionmarks………………………… 3
２．IMPORTANTINSTRUCTIONFORTHESAFETY
２−１． Dangeritems………………………………………………… 4
２−２． Warningitems………………………………………………… 4
２−３． Cautionitems………………………………………………… 5
３．PRODUCTFUNCTION
３−１． Externaldrawing……………………………………………… 6
３−２． Appearance…………………………………………………… 6
３−３． Panelcut-outdimensions…………………………………… 7
３−４． Nameofeachpartandfunction……………………………… 8
３−５． Blockdiagram………………………………………………… 9
４．HOWTOUSE
４−１． Beforeoperation……………………………………………… 10
４−２． Mounting/dismountingprocedure…………………………… 10
４−３． Installationplace……………………………………………… 11
４−４． Cautioninthesystemengineering…………………………… 12
４−５． Grounding…………………………………………………… 14
４−６． Wiring………………………………………………………… 15
５．OPERATIONMETHOD
５−１． Start-up……………………………………………………… 16
５−２． Basicperformanceflow……………………………………… 16
５−３． Start-upmethod
５−３−１． Poweron…………………………………………… 17
５−４． Explanationofperformance(Detectionmode)
５−４−１． Displayaction……………………………………… 18
５−４−２． Externaloutputaction……………………………… 20
５−５． Maintenanceandadjustment
５−５−１． Maintenancemode………………………………… 21
５−５−２． Confirmationofalarmlevel………………………… 22
５−５−３． Changeofalarmlevel……………………………… 22
５−５−４． Confirmationofaddress…………………………… 23
５−５−５． Confirmationofpeakholdlevel…………………… 23
５−５−６． Alarmtest………………………………………… 24
５−６． Howtofinishoperation……………………………………… 25

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６．KINDSOFALARMANDITSPERFORMANCE
６−１． Kindsofalarm………………………………………………… 26
６−２． Gasalarm
６−２−１． Gasalarmaction…………………………………… 26
６−２−２． Counteractionatgasalarm………………………… 27
６−２−３． Alarmotherthangasdetection…………………… 27
７．MAINTENANCECHECK
７−１． Frequencyofmaintenanceandcheckitems
７−１−１． Dailycheck…………………………………………・ 28
７−１−２． Regularmaintenancecheck………………………… 28
７−２． Maintenancecontractforregularcheck……………………… 28
７−３． Replacementofparts………………………………………… 29
７−４． Measurewhenoperationisstoppedorinstallationplaceismoved.
７−４−１． Stoppingthenormaloperation……………………… 29
７−４−２． Changingtheinstallationplace……………………… 29
７−５． Storageandtreatmentwhennotuseforalongtime………… 29
８．SCRAPOFPRODUCTANDSENSOR………………………………… 29
９．MEASURESATANABNORMALCASE
９−１． Troublealarm………………………………………………… 30
９−２． Respondingtotroublealarm………………………………… 30
９−３． Beforeitisthoughttobetrouble…………………………… 30
９−４． Troubleshooting…………………………………………… 30
１０．DEFINITIONOFWORD……………………………………………… 32
１１．PRODUCTSPECIFICATIONS
１１−１． Specifications……………………………………………… 33
１１−２． Productcomposition……………………………………… 33

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１．PRODUCTOUTLINE
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１−１．Inthebeginning
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Firstofall,wewishtoexpressourheartfeltthanksforyourpurchaseofourindicator/alarmunitRM-592.
Thisinstructionmanualisjustaguidebooktooperateindicator/alarmunitRM-592ofRM-590series.
Yourkindreadingofthismanualisrequestednotonlyforfirstuserbutforalreadyexperiencedstaff.
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１−２．Applicationforuse
○Thisisanexclusiveindicator/alarmunitfor4-20mAoutputstypeinstrumentandmainlyusedasgasalarm
systemincombinationwithgasdetectorheadtoindicatedetectedgasconcentrationforenvironmentalcontrol.
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１−３．Identificationofeachcautionmarks
Indicatesanimminentlyhazardoussituationwhich,ifnotavoided,willresultindeathor
seriousinjury.Thissignalwordistobelimitedtothemostextremesituation.
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Indicatesapotentiallyhazardoussituationwhich,ifnotavoided,couldresultindeath
orseriousinjury.
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Indicatesapotentiallyhazardoussituationwhich,ifnotavoided,mayresultinminoror
moderateinjury.Itmayalsobeusedtoalertagainstunsafepractices.
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Thismeans“ADVICE”atoperation.
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＊NOTE
DANGER
 WARNING
CAUTION

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２．IMPORTANTINSTRUCTIONFORTHESAFETY
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２−１．Dangeritems
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２−２．Warningitems
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Thisisnotexplosionproofunit.Donotuseitathazardousarea.Itisdangertousethisunitundersuch
environment.
DANGER
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・Powersource
Beforesupplyingthepower,confirmthatthepowersourceisadesignatedvoltage.
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・Necessityofprotectivegrounding
Donotcutinsideoroutsidewireforearth,nordisconnectthewirefromearthterminal.
Inanycase,theunitbecomesdangerousconditions.
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・Defectofprotectivefunction
Donotoperatetheunitifprotectivefunctionssuchasprotectivegroundingorfuseareseemstobe
defective.
Also,beforeoperatingtheunitconfirmthatthereisnodefectforprotectivefunctions.
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・Fuse
Usethedesignatedrating(current,voltage,type)fusetopreventfire.
Replacementoffuseshallbedoneafterputofftheinitialpowersourceandputoffthepowerswitchofthis
unit.
Donotuseotherfusethandesignatedone,normakeshortcircuitforfuseholder.
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・Externalconnections
Aftermakingprotectivegroundingfirmly,connecttoexternalcontrolcircuitordetectionobjective.
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・Responsetoagasalarm
Whendetecthighconcentrationgasthanpresetalarmlevel,itisverydangerous.
Itisrequiredtotakeanappropriatemeasuresbycustomerʼsdecision.
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・Mounting/dismounting
Lockingmechanismmaybebrokeniftheunitismountedintothecasewithdisengagementleverup
position.Makecorrectprocedureformounting/dismounting.
WARNING

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２−３．Cautionitems 
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・.Donotusewalky-talky,mobilephone,etc.nearthisunit.
Whenthisunitreceivestheelectricwavesbywalky-talkyetcnearfromthecable,thiswilleffectthe
reading.
Whenusethewalky-talky,operateitattheplacewherethereisnoinfluenceofelectricwaveejection.
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・Whenmakepoweronagain,makeitafteranintervalofover5seconds.
Whenmakepoweronwithin5seconds,theremaybenonormaloperation.
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・Whenoperateitnottofollowthismanual,repairitbyotherratingpartsormodifyitonhisown,thesafetyand
quality ofproducts cannotbe secured. Then, whenan accident takeplacebyit,wecannotassureour
responsibilityonthem.
Takeenoughconsiderationforinstrumentationtokeepsafetyevenifdisconnectionofpowerandsignallines,
defectofoperationortroublewouldbehappenduetounexpectedreason.
Thisisanelectricalappliedinstrument.
Becareitmaybeeffectedbypowernoise,electrostaticandelectromagneticnoise.
Whenuseundersuchconditions,makeprotectivetreatmentforuse.
CAUTION

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３−３．Panelcut-outdimensions
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※Refertotheinstructionmanualformulti-unitcaseifinstalledtheunittomulti-unitcase.
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  CAUTION
Pleaseconsultusorwithouragentforinstallationmethodor installationquantitytoavoid
troublecausedbyradiatingheat.
（３６×N−３）＋０．６
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138 +1
0
66 +0.6
0
Requiredthicknessofthepanel:1.2〜3.2mm
（３６×N−３）＋０．６
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Dimensionswithsinglecase
1.Mountingfor2stepsinverticalandNlinesinhorizontal
2.Mountingfor1stepinverticalandNlinesinhorizontal

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３−４．Nameofeachpartandfunction
*Thebelowpicturesshowindicator/alarmunitwithsinglecase. 
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①LEDdisplay・・・・・・・・・・・・・・・・・・・・・・・・Indicatesgasconcentration.
②POWERswitch・・・・・・・・・・・・・・・・・・・・・ON/OFFswitch
③Terminalplates・・・・・・・・・・・・・・・・・・・・・Connectscablesfromoutside.
 Formulti-unitcaserefertoinstructionmanualformulti-unitcase.
④PW/TRlight・・・・・・・・・・・・・・・・・・・・・・・Combinationlightforpowerandtroubleindication.
 Steadylight:PowerON,normaloperation
 Flashing :Trouble
⑤AL1light・・・・・・・・・・・・・・・・・・・・・・・・・ Flashesatgasalarm(1stalarm)
⑥AL2light・・・・・・・・・・・・・・・・・・・・・・・・・ Flashesatgasalarm(2ndalarm)
AlarmlightschangecontinuouslightingafterRESEToperation.
⑦SKIPlight・・・・・・・・・・・・・・・・・・・・・・・・ Flashesduringmaintenancemode.
⑧MODEswitch・・・・・・・・・・・・・・・・・・・・・ Usesatmaintenancework.
⑨UP/DOWNswitch・・・・・・・・・・・・・・・・・ Usestoselectitemsatmaintenancemode,increaseordecreasereading
atzero andspanadjustments, andtoincreaseordecreasereadingat
alarmtest.
⑩SETswitch・・・・・・・・・・・・・・・・・・・・・・・ Usestochangeforalarmtestmode.
 Thisisalsousedtosetthecontentsofmodeduringmaintenancemode.
⑪Disengagementlever・・・・・・・・・・・・・・・・Lockstheindicator/alarmunit.
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②
④
⑤
⑥
⑦
⑧
⑨
⑩
①③
⑪

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３−５．Blockdiagram
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4-20mAOutputinstrument
(Detectorhead)
Amppart
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Controlpart
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Displaypart
（ＰＷ／ＴＲ） (ＳＫＩＰ) （ＡＬ１） （ＡＬ２）
Operationpart
（ＭＯＤＥ） （ＵＰ） （ＤＯＷＮ） （ＳＥＴ） 
POWERINPUT
(DC24V)
Powersupplypart
Gasalarmcontact （ＡＬ１、ＡＬ２） 
Troublealarmcontact
(ＴＲＯＵＢＬＥ)
※Standardsetting
・Non-exciting
（Non-excitingatnormal）
・A-contact
（Contactclosesatalarm）
Alarmcontactcontrolpart
4-20mA
transmission
Transmissionpart
ＲＭ−５９２


10

４．HOWTOUSE

４−１．Beforeoperation
Besuretokeepcautionitemsofusenotonlyforfirstuserbutforalreadyexperiencedstaff.
Ifnotkeepthesecautionitems,theunitmaybedefectiveandcorrectgasdetectionmaynotbeperformed.


４−２．Mounting/dismountingprocedures
Indicator/alarmunitforRM-590seriesshallbeusedafterhousingitineitherexclusivesinglecaseormulti-unit
case.

(1)Mountingmethod
・Openthefrontcoverofthisunit.
・ConfirmthatthepowerswitchisatOFF.
・Withthedisengagementleveratdownposition,mountintothecase.
     （Confirmthattheedgeconnectorisputinfirmly）
・Confirmthatthedisengagementleveristurnedupwardwhenindicator/alarmunitismountedintothecase
firmly.
・Afterconfirmationofleverposition,putONthepowerswitch,andthen,closethecover.

(2)Removaloftheunit
・Openthefrontcoverofthisunit.
・ConfirmthatthepowerswitchisatOFF.
・Pushdisengagementleverdowntoreleasethelock.
・Pullouttheunitfromthecase.
・Turntheleverupwardandclosethecover.

Mounting/dismountingofindicator/alarmunitshallbedoneaccordingtotheabove
procedures.Ifnot,stoppingmetaloftheunitmaybetransformedandthecover
cannotbeclosed.


 CAUTION


11
４−３．Installationplace





 Keepawaythesystemfrom directsundroughtorwherethetemperatureofthesystemisdrastically
changed.  If installed, inside the unit will be built up condensation and does not follow the drastic
temperaturechange.


Thesystemconsistsoffineelectronicsparts.
Installthemwheretobestablenottocrushorfalldown.



 Keepthesystemfromtheequipmentwhichmaygiveahighfrequencyinthesurroundingsandinstallit.
・Donotputthesystemjointlyeach.・Donotwirethecableinparallelnortakeaccess.


Donotinstallandmakegasdetectionattheplacewherethesamplegasisdeposited.


Thisunitisrequiredtomakemaintenanceregularly.
Then,donotinstallattheplacewherethereisdangeratmaintenancetime.


Whenrequiredtostopthesystematmaintenancetime,unabletomaintainifnotremoveapartofsystemor
unabletodetachthecaseduetothepipeorracketc.donotinstallsuchplace.


Besuretogroundwheninstalltotheequipment.



Donotinstallatplaceswheredirectsundroughtorwherethetemperatureisdrasticallychanged.
Donotinstallitwherevibrationorshocksmaytakeplace.
Keepthesystemfromtheequipmentwhichmaygeneratethenoise(Unit&cable).
Donotinstallitwherethedetectiongasisdepositedaround.
Donotinstallattheplacewhereitisdangerformaintenanceservicesuchashighvoltagecable,etc.
Donotinstallitwhereitisunabletomakemaintenance.
Equipmenthousingthatgroundingconstructionisnotenough.
CAUTION


12
４−４．Cautioninthesystemengineering 

Unstablepowerandnoisemaycauseerrorofperformanceandalarm.
Forthesystemtousethisunit,itisrequiredtomakedesignbasedonthismanual
descriptions.

（１） Stablepowerused
Whilethesystemgetsstableatpoweronorinstantaneouspowerfailure,theexternaloutputandalarmcontact
maybeonandthecareforitmustbetaken.Insuchcase,usethestandbybatteryortakeanappropriate
actioninthereceiverside.Supplythefollowingpowertothisunit
Powervoltage DC２４V±１０％
Powerfailure
tolerancetime
Approx50msec.
（Forpowerfailureof50msec,itre-starts）
To warrant the continuous operation, install the UPS
(UninterruptedPowerSupply)orstandbybatteryoutside.
Others
Donotsharethepowerinvolvingwithhighpowerloadand
highfrequencynoise.
Accordingtorequirement,uselinefilterandseparateitfrom
noisesource.

（２） Designingtoconsiderradiation
Wheninstalltheclosedself-standingcontrolpanel,mountthefansintheupperandlowerpart.

（３） Lightningmeasures
Lightningsurge
Thereistheproblem“Lightning”.Whenmakeoutdoorwiringofcableatfactoryorplantsetcor
whenmakeaparallelwiringinthesameductwiththecableinfromoutdoorevenattheindoor
wiring.Ifthelightningisahugegenerationsource,thecableisareceptionantennaandthereis
thecasethatcableconnectinginstrumentisbroken.Itisimpossibletopreventthegenerationof
lightning. Ifthecableshouldputinmetaltubeorlaidintheunderground,itisimpossibletoprevent
theinductivelightningsurgegeneratingfromthethunder.
Lightning
measures
Thereisnotthecompletecountermeasureforitbutthefollowingmethodcanbeconsidered.
Makethesuitabletreatmentaccordingly.
a) Thetransmissionsignalrouteisarrangedforconnectionbytheopticalfibercableetc.
b) Countermeasurebythelightingarrester(Cablesafetyretainer).Thereisthewaytoinstall
the lightning arrester just before the field apparatus and the central control station.  The
positionofthelightningarresterinstallationisateachpointofcablelaidoutfromtheoutdoor
totheindoor.Thelightningarresterbuildsinthecircuittoremovethesurgevoltagetobethe
sourceforthedamageoffieldapparatus(Protectionresistor,zerodiodeetc.)andisdesigned
toprotecttheapparatus.Butasthesignalmaybeattenuatedduetothelightningarrester,
checktheactionanditisrequiredtouse.
Grounding Surgenoiseshallbegeneratedfromthethunderlightningorexceptit.
Toprotectdetectorfromthesecause,besuretomakegrounding.

＊Inthelightningrod,thereisthecircuittoremovethesurgevoltagetobeacauseofdamagefromfieldinstruments.
Byinstallingthelightningrod,thesignalmaybeattenuated. Wheninstallthelightningrod,itisrequiredtocheck
theperformanceinadvance.

CAUTION


13
（４） Alarmcontact
・Alarmcontactsshallbeusedonlyforexternalbuzzerandalarmlight,anddonotuseitforthecontrollinguse
(suchassolenoidvalvecontroletc).
Whencontroltheexternalload,thebadinfluencemaybegiventothesystemaccordingtotheloadcharacteristics.
Insuchcase,thefollowingcountermeasureshallbetakentostabilizetheactionandprotectthecontents.
・RelayedbythelowvoltagerelayandoperatebyconnectingCRcircuit(SparkKiller:SK)(DiodeetcforDC)suited
forrelaycoildirectlytorelay.

 ・AddCRcircuittotheloadsideofrelayontherequest.



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




Reference:Bytheconditionofload,CRcircuitmaybebettertoinstallinthecontactsidebutitisrequiredtoputin
bycheckingtheactionofload.

ＳＫ：Surgeabsorptionfilter



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
−Howtothinkalarmcontactsagainstinductiveload−
ThespecforalarmcontactofRM-592isdescribedbytheconditionsofresistanceload.
Whenusetheinductiveloadforalarmcontacts,theveryhighreverseelectromotivevoltagemaybegeneratedand
thefollowingtroubletendstobeproduced.

・Contactpartofrelayismeltedadhesivelyandthecontactscannotwork.
・Highvoltageisputinsideofindicator/alarmunitandthen,electricalpartsmaybedamaged.
・Asitisbignoise,thetroubleactionmaybetakenbytherecklessdriveofCPU.
・Irrespectiveofinductiveload,thereisthepossibilityofunforeseeablenoiseinstructionforcontact.
Abovetroublemaybegenerated.
Ｖ
SK
L
o
a
d
Ｖ
SK
C
o
i
l

PowersupplyPowersupply Relay
(Lowvoltagerelay)
Alarm
contact
ＲＭ−５９２
CAUTION  （FORUSEOFNORMALLY-CLOSEDCONTACT） 
Normally-closed contact (Break contact) at non-existing conditionmaychangetoopencontactina
momentduetophysicalshock.
Wheneveralarmsignalsfromgasdetectorsareusedwithnormally-closedcontact,pleaseput
delayed-circuit(foraboutonesecond)toreceiversideofnormally-closedcontacttoavoidsuch
phenomenon.


14







*Astheinductiveload,therearefollowingsamples.
   ・Revolvinglight*Externalrelay*Buzzer*Siren *Fan*Fluorescentlamp*Motoretc.


４−５．Grounding
Makegroundingwithterminal.




BesuretomakegroundingbeforeputtingpowerON.
*Theabovefigshowstheunitwithsinglecase.Incaseofmulti-unitcase,refertoinstruction
manualformulti-unitcase.



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











 Besuretomakegroundingforsafetypurposeandtokeepstableoperationofthisunit.
 Donotconnecteachwirewithgaspipe.MakegroundingcorrespondingtoD-classgrounding
(Groundingresistance:below100ohms).

 WARNING
  CAUTION 
・Theinductiveloadshallnotbeusedinprinciple(Donotusefluorescentlamp).
・Whenusetheinductiveload,makethecontactamplificationoutside,buttheoutsiderelaycoil
belong,usetherelaydrivenbythelowvoltage(withinAC100V)anditisprotectedbyan
appropriatesurgekiller.
Terminal


15
４−６．Wiring 
(Incaseofsinglecase)
ＴＤ１
ＴＤ２
ＴＤ３
ＴＤ４
Maximumcablelength:1.25km
Formulti-unitcase,refertooperatinginstructionformulti-unitcase.
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③
④
⑤
⑥
CVVS1.25mm2,2-core
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②
③
④
DC24V±10％
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④
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③
④
AL1:1stalarmcontactoutput
AL2:2ndalarmcontactoutput
TR:Commontroublealarmcontact
4-20mAoutput
GND(-)
Earthterminal
4-20mAoutput
instrument
(Detectorhead)
24V(+)
①
②
③
④
 CAUTION
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・UseCVVS1.25mm2cableforconnection.
・Donotdistributepowercableandsignalcabletogetherwithpowerlineformotor,etc.
・Thisunitappliesaconnectortypeterminalplateforeasywiring.Becarenottogiveahighloadtothe
connector.
・Wecannotwarranttheperformanceofthisunitifundesignatedcableisused.
Note1
Note1:Whenlowflowalarmsignalisused
individually, disconnect short-circuit bar
betweenterminalNo.3and4ofTD2and
connectsignalcableforlowflowalarm.
３
４
５(+)
６(-)

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16
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５．OPERATIONMETHOD
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５−１．Start-up
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●Beforeturningonthepower……………
BeforeturningonthepowerON,keepfollowingcautionitems. Ifnot,dangerforelectricshockordamagetothe
unitwillbehappen.
（１）Makegrounding.
（２）Checkthatwiringswithouterunitsaremadecorrectly.
（３）Checkthatthesupplyvoltageiswithinarating.
（４）Relaycontactforouteralarmbeactivatedduringadjustments.  Evenrelaycontactworks,treatthatany
influencewillnotbegiventotheouter.
（５）Topreventfire,checkthatthedesignatedfuseisused.
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５−２．Basicperformanceflow
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Innormaloperation,itisusedondetectionmode.
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Poweron
Stand-by
Initialclear(approx.25sec.)
Detectionmode Alarmtestmode
SETswitch(Pressforabout3sec.)
ＭＯＤＥswitch(Pressforabout3sec.)
Maintenancemode
・Changeofalarmlevels(AL1,AL2)

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17
５−３．Start-upmethod
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５−３−１．Poweron
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1)Beforemakingpoweron,checkthattheunitisconnectedcorrectly.
2)Thepowerswitchcanbeseenwhenthefrontcoverisopened.
3)PutthepowerswitchupwardtoONanddownwardtoOFF.
4)Putthepowerswitchon,andpowerlightilluminates.
5)Statusofinitialclear(about25sec.)isdisplayedas“----“.
 ・Checkingofthesystem(Self-diagnosis)
 ・Outputsignal:Approx2.5mA
・Gasalarm,troublealarm(light,contact)shut-off.
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Powerswitch
Cover

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18
５−４．Explanationofperformance(Detectionmode)
５−４−１．Displayaction 
Therearefollowingtwokindsofdisplays.
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(1)LEDdisplay：Showsgasconcentrations.
 (2)LEDlight ：Showspower/trouble(PW/TR),1stgasalarm(AL1),2ndgasalarm(AL2)andmaintenance
(SKIP)condition.
*ContentsofindicationsbyLEDdisplayandLEDlightaredifferentfromtheconditionoftheunit.
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Preparation
PowerON
ActionofLEDlight
□：Lightoff  ■：Lighton  ◎：Flashing
Initialclear(Approx25sec.)
Detectionmode
OnlyPW/TRlightilluminatesatdetection
modeandLEDdisplayshowsdetected
gasconcentration.
Gasalarmcondition
WhendetectgasaboveAL1,AL2,it
showsgasconcentrationsandAL1,
AL2alarmlightsflash.
PW/TR  AL2
■□
SKIP  AL1
□□
PW/TR  AL2
■□
SKIP  AL1
□□
PW/TR  AL2
■□
SKIP  AL1
□◎

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Whenanyoftroublearises,PW/TRlightflashes
andcontentoftroubleisshownonLED.
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 (LEDdisplay) (Contentoftrouble)
  E-00  Systemtrouble
  E-01  Detectorheaddisconnection
ornotyetconnected.
  E-05  Lowsampleflowindetectorhead.
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The right 「 -0.00 」  is displayed
whenzerolevelgetsdowntominus
(-)sideatabove10%fullscale.
WARNING
Whenitshows「-0.00」,accurategasreadingisimpossible
andmakezeroadjustmentatconnectedinstrument.
PW/TR  AL2
■□
SKIP  AL1
□□
Troublecondition
PW/TR  AL2
◎□
SKIP  AL1
□□