YOKOGAWA EJX Series User Manual

  <2.HandlingCautions>
11
IM01C25A01-01E
WARNING

• InthecasewheretheenclosureofthePressure
Transmitterismadeofaluminium,ifitismounted
inanareawheretheuseofcategory1G
apparatus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chargemaycauseanexlosion
hazard.Avoidanyactionsthatcausethe
gerenationofeletrostaticcharge,suchasrubbing
withadryclothoncoatingfaceoftheproduct.
• IncaseoftheenclosureofthePressure
Transmitterwithpaintlayers,ifitismountedinan
areawheretheuseofcategory2Dapparatusis
required,itshallbeinstalledinsuchawaythatthe
riskfromelectrostaticdischargesandpropagating
brushdischargescausedbyrapidowofdustis
avoided.
• TosatisfyIP66orIP67,applywaterproofglandsto
theelectricalconnectionport.
• Whenthelightningprotectoroptionisspecied,
theapparatusisnotcapableofwithstandingthe
500VinsulationtestrequiredbyEN60079-11.This
mustbetakenintoaccountwheninstallingthe
apparatus.
b. ATEXIntrinsicallySafeTypeforEJX910A
andEJX930A
CautionforATEXIntrinsicallysafetype.
Note1. ModelEJXSeriespressuretransmitterswith
optionalcode/KS2forpotentiallyexplosive
atmospheres:
• No.KEMA06ATEX0037X
• ApplicableStandard:
EN50014:1997,EN50020:2002,
EN50284:1999,EN50281-1-1:1998
• TypeofProtectionandMarkingcode:
EExiaIICT4
• Group:II
• Category:1G,1D
• AmbientTemperatureforgas-proof:
–50*to60°C
 *–15°Cwhen/HEisspecied.
• ProcessTemperature(Tp.):120°Cmax.
• MaximumSurfaceTemperaturefordust-proof:
T85°C(Tamb.:–40*to60°C,Tp.:80°C)
T100°C(Tamb.:–40*to60°C,Tp.:100°C)
T120°C(Tamb.:–40*to60°C,Tp.:120°C)
 *–15°Cwhen/HEisspecied.
• Enclosure:IP66andIP67
Note2. ElectricalData
[Supply/Outputcircuit(terminals+and-)]
 IntypeofexplosionprotectionintrinsicsafetyEEx
iaIIC,onlyforconnectiontoacertiedintrinsically
safecircuitwithfollowingmaximumvalues:
Ui=30V
Ii=200mA
Pi=0.9W
 Effectiveinternalcapacitance;Ci=10nF
 Effectiveinternalinductance;Li=0mH
[PulseOutputcircuit(terminals-andpulse)]
 IntypeofexplosionprotectionintrinsicsafetyEEx
iaIIC,onlyforconnectiontoacertiedintrinsically
safecircuitwithfollowingmaximumvalues:
Ui=30V
 Ii=200mA
 Pi=0.9W
 Ci=10nF
 Li=0mH
[Externaltemperatureinputcircuit(connector)]
 IntypeofexplosionprotectionintrinsicsafetyEEx
iaIIC,withfollowingmaximumvalues:
Uo=30V
 Io=95.4mA
Po=468mW
 Co=11nF
 Lo=3.9mH
Note3. Installation
• Allwiringshallcomplywithlocalinstallation
requirements.(Refertotheinstallationdiagram)
• Whentheanalogandpulsecircuitsareconnected
toseparatebarriers,itshallbeassuredthatthe
voltagedifferencebetweentheseoutputcircuitsis
notmorethan30V.
• Whenusedinapotentiallyexplosiveatmosphere,
Requiringtheuseofapparatusofequipment
category1Dor2D,certiedcableentrydevices
shallbeusedthataresuitablefortheapplication
andcorrectlyinstalled.
Note4. MaintenanceandRepair
• Theinstrumentmodicationorpartsreplacement
byotherthanauthorizedrepresentativeof
YokogawaElectricCorporationisprohibitedand
willvoidKEMAIntrinsicallysafeCertication.
Note5. SpecialConditionsforSafeUse
• InthecasewheretheenclosureofthePressure
Transmitterismadeofaluminium,ifitismounted
inanareawheretheuseofcategory1G
apparatus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.
HandlingCautions
2

YOKOGAWA EJX Series Specifications

General

Brand	YOKOGAWA
Model	EJX Series
Category	Transmitter
Language	English