<1. Introduction>
2
IM01C25A01-01E
Regarding This Manual
• Thismanualshouldbepassedontotheenduser.
• Thecontentsofthismanualaresubjecttochange
withoutpriornotice.
• Allrightsreserved.Nopartofthismanualmaybe
reproducedinanyformwithoutYokogawa’swritten
permission.
• Yokogawamakesnowarrantyofanykindwithregard
tothismanual,including,butnotlimitedto,implied
warrantyofmerchantabilityandtnessforaparticular
purpose.
• Ifanyquestionarisesorerrorsarefound,orifany
informationismissingfromthismanual,pleaseinform
thenearestYokogawasalesofce.
• Thespecicationscoveredbythismanualarelimited
tothoseforthestandardtypeunderthespecied
modelnumberbreak-downanddonotcovercustom-
made instruments.
• Pleasenotethatchangesinthespecications,
construction,orcomponentpartsoftheinstrument
maynotimmediatelybereectedinthismanualat
thetimeofchange,providedthatpostponementof
revisionswillnotcausedifcultytotheuserfroma
functional or performance standpoint.
• Yokogawaassumesnoresponsibilitiesforthis
productexceptasstatedinthewarranty.
• Ifthecustomeroranythirdpartyisharmedbytheuse
ofthisproduct,Yokogawaassumesnoresponsibility
foranysuchharmowingtoanydefectsintheproduct
whichwerenotpredictable,orforanyindirect
damages.
• WhendescribingthemodelnamelikeEJ110
inthismanual,itshowstheapplicabilityforboth
EJX110AandEJA110E.Thesamerepresentations
areusedfortheothermodels,too.
• Thefollowingsafetysymbolmarksareusedinthis
manual:
WARNING
Indicatesapotentiallyhazardoussituationwhich,ifnot
avoided,couldresultindeathorseriousinjury.
CAUTION
Indicatesapotentiallyhazardoussituationwhich,ifnot
avoided,mayresultinminorormoderateinjury.Itmay
alsobeusedtoalertagainstunsafepractices.
IMPORTANT
Indicatesthatoperatingthehardwareorsoftwarein
thismannermaydamageitorleadtosystemfailure.
NOTE
Draws attention to information essential for
understandingtheoperationandfeatures.
Direct current
Functional grounding terminal
Caution
Thissymbolindicatesthattheoperatormust
refertoanexplanationintheuser’smanual
inordertoavoidtheriskofinjuryordeathof
personnelordamagetotheinstrument.
1.1 For Safe Use of Product
Fortheprotectionandsafetyoftheoperatorandthe
instrumentorthesystemincludingtheinstrument,please
besuretofollowtheinstructionsonsafetydescribed
inthismanualwhenhandlingthisinstrument.Incase
theinstrumentishandledincontradictiontothese
instructions,Yokogawadoesnotguaranteesafety.
Pleasegiveyourattentiontothefollowings.
(a) Installation
WARNING
• Theinstrumentmustbeinstalledbyanexpert
engineeroraskilledpersonnel.Theprocedures
describedaboutINSTALLATIONarenotpermitted
for operators.
• Incaseofhighprocesstemperature,careshould
betakennottoburnyourselfbecausethesurface
ofbodyandcasereachesahightemperature.
• Theinstrumentinstalledintheprocessisunder
pressure.Neverloosentheprocessconnector
boltstoavoidthedangerousspoutingofprocess
uid.
• Duringdrainingcondensatefromthepressure
detectorsection,takeappropriatecaretoavoid
contactwiththeskin,eyesorbody,orinhalation
ofvapors,iftheaccumulatedprocessuidmaybe
toxicorotherwiseharmful.
• Whenremovingtheinstrumentfromhazardous
processes,avoidcontactwiththeuidandthe
interiorofthemeter.
• Allinstallationshallcomplywithlocalinstallation
requirement and local electrical code.