YOKOGAWA EJX110A - Page 25

<2. Handling Cautions>
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IM01C25A01-01E
2.4.4 IECExCertication
ModelEJXSeriespressuretransmitterswithoptional
code/SU21canbeselectedthetypeofprotection
(IECExIntrinsicallySafeExia,Exicorameproof)for
useinhazardouslocations.
EJXSeriespressuretransmitterswithoptionalcode
/SS26canbeselectedthetypeofprotection(IECEx
intrinsicallysafeExiaorExic)foruseinhazardous
locations.
EJXSeriespressuretransmitterswith
optionalcode/SU2canbeselectedthetypeof
protection(IECExIntrinsicallySafe/typenor
ameproof)foruseinhazardouslocations.
Note1. Fortheinstallationofthistransmitter,oncea
particulartypeofprotectionisselected,any
othertypeofprotectioncannotbeused.The
installationmustbeinaccordancewiththe
descriptionaboutthetypeofprotectioninthis
instruction manual.
Note2. Forcombinedapprovaltypes,onceadeviceof
multipleapprovaltypeisinstalled,itshouldnot
bere-installedusinganyotherapprovaltypes.
Applyapermanentmarkinthecheckboxofthe
selectedapprovaltypeonthecerticationlabel
onthetransmittertodistinguishitfromunused
approval types.
a. IECEx Intrinsically Safe Ex ia for HART/
BRAIN Protocol Type (Except for EJX90A)
CautionforIECExIntrinsicallysafeExia.
Note1. EJX/EJA-Eseriespressuretransmitterswith
optionalcode/SU21areapplicableforusein
hazardouslocations
• No.IECExDEK11.0081X
• ApplicableStandard:IEC60079-0:2011,
IEC60079-11:2011
• ExiaIICT4Ga
• AmbientTemperature:–50to60°C
• Max.ProcessTemp.:120°C
• Enclosure:IP66/IP67
 TosatisfyIP66orIP67,applywaterproofglandsto
theelectricalconnectionport.
Note2. ElectricalData
MaximumInputVoltage(Ui)=30V
MaximumInputCurrent(Ii)=200mA
MaximumInputPower(Pi)=0.9W(linearsource)
MaximumInternalCapacitance(Ci)=27.6nF
MaximumInternalInductance(Li)=0μH
Whenthelightningprotectoroptionisspecied,the
apparatusisnotcapableofwithstandingthe500V
insulationtestrequiredbyIEC60079-11.Thismustbe
takenintoaccountwheninstallingtheapparatus.
Note3. Installation
• Inanysafetybarrierusedoutputcurrentmustbe
limitedbyaresistor‘R’suchthatIo=Uz/R.
• ThesafetybarriermustbeIECExcertied.
• Inputvoltageofthesafetybarriermustbeless
than250Vrms/Vdc.
• Theinstrumentmodicationorpartsreplacement
byotherthanauthorizedrepresentativeof
YokogawaElectricCorporationisprohibitedand
willvoidIECExcertication.
F0236.ai
EJX/EJA-E Series
Pressure Transmitters
IECEx certified
Safety Barrier
Supply
Hazardous Location Nonhazardous Location
+
–
+
–
[Ex ia]
Group IIC, Zone 0
(*1)
*1: When using non isolation barrier,
connect (*1) to IS barrier system.
Note4. SpecicConditionofUse
WARNING
• Electrostaticchargemaycauseanexplosion
hazard.Avoidanyactionsthatcausethe
generationofelectrostaticcharge,suchasrubbing
withadryclothoncoatingfaceoftheproduct.
• Whentheenclosureofthepressuretransmitter
ismadeofaluminum,ifitismountedinanarea
wheretheuseofEPLGaequipmentisrequired,it
mustbeinstalledsuch,that,evenintheeventof
rareincidents,ignitionsourcesduetoimpactand
frictionsparksareexcluded.
• Electrostaticchargesonthecoatedpartsof
PressureTransmittershallbeavoided.
b. IECEx Intrinsically Safe Ex ic for HART/
BRAIN Protocol Type (Except for EJX90A)
CautionforIECExIntrinsicallysafeExic.
Note1. EJX/EJA-Eseriespressuretransmitterswith
optionalcode/SU21areapplicableforusein
hazardouslocations
• No.IECExDEK13.0061X
• ApplicableStandard:IEC60079-0:2011,
IEC60079-11:2011
• ExicIICT4Gc
• AmbientTemperature:–30*to60°C
*-15°Cwhen/HEisspecied.
• Max.ProcessTemp.:120°C
• IPCode:IP66
• OvervoltageCategory:I