YOKOGAWA EJX110A - Page 21

<2. Handling Cautions>
20
IM01C25A01-01E
• Intherating1(*1),theoutputcurrentofthebarrier
mustbelimitedbyaresistor‘Ra’suchthatIo=Uo/
Ra.
• Intherating2(*2),theoutputofthebarriermustbe
thecharacteristicsofthetrapezoidortherectangle
andthistransmittercanbeconnectedtoFieldbus
equipmentwhichareinaccordingtotheFISCO
model.
• Theterminatorsmaybebuiltinbyabarrier.
• Morethanonetransmittermaybeconnectedto
thepowersupplyline.
• Theterminatorandthesafetybarriershallbe
certied.
Electricaldata:
Supply circuit
MaximumInputVoltageUi:24V
*1:
Rating 1
MaximumInputCurrentIi:250mA
MaximumInputPowerPi:1.2W
MaximumInternalCapacitanceCi:3.52nF
MaximumInternalInductanceLi:0μH
or
MaximumInputVoltageUi:17.5V
*2:
Rating 2
MaximumInputCurrentIi:380mA
MaximumInputPowerPi:5.32W
MaximumInternalCapacitanceCi:3.52nF
MaximumInternalInductanceLi:0μH
or
MaximumInputVoltageUi:17.5V
MaximumInputCurrentIi:460mA
MaximumInputPowerPi:5.32W
MaximumInternalCapacitanceCi:3.52nF
MaximumInternalInductanceLi:0μH
Sensor circuit
MaximumOutputVoltageUo:7.63V
MaximumOutputCurrentIo:3.85mA
MaximumOutputPowerPo:0.008W
MaximumInternalCapacitanceCo:4.8μF
MaximumInternalInductanceLo:100mH
• RTDsensorispreparedbytheuser.
 Thesensorsignallinemustsuitedatestvoltageof
500Vac.
d. ATEX Flameproof Type
CautionforATEXameprooftype.
Note1. EJX/EJA-ESeriespressuretransmitterswith
optionalcode/KF22or/V1Fareapplicablefor
useinhazardouslocations.
• No.KEMA07ATEX0109X
• ApplicableStandard:
EN60079-0:2012+A11:2013
EN60079-1:2007,EN60079-31:2014
• TypeofProtectionandMarkingCode:
 ExdIICT6...T4Gb,ExtbIIICT85°CDb
• Group:II
• Category:2G,2D
• Enclosure:IP66/IP67
• TemperatureClassforgas-poof:
T6,T5,andT4
• AmbientTemperatureforgas-proof:
–50to75°C(T6),–50to80°C(T5),and
–50to75°C(T4)
• ProcessTemperature(Tp.)forgas-proof:
 –50to85°C(T6),–50to100°C(T5),and
–50to120°C(T4)
• MaximumSurfaceTemperaturefordust-proof:
T85°C(Tamb.:–30*to75°C,Tp.:–30*to85°C)
*–15°Cwhen/HEisspecied.
Note2. ElectricalData
• Supplyvoltage:42Vdcmax.
32Vdcmax.(FOUNDATIONFieldbusand
PROFIBUSPAtype)
9to28Vdc,27mW(LowPowertype)
9to30Vdc,250mW(RS485Modbus
CommunicationType)
• Outputsignal:4to20mA
15 mA (FOUNDATIONFieldbusandPROFIBUSPA
type)
1to5V(LowPowertype)
RS485Modbus(RS485ModbusCommunication
Type)
Note3. Installation
• Allwiringshallcomplywithlocalinstallation
requirement.
• Cableglands,adaptersand/orblankingelements
withasuitableIPratingshallbeofExdIIC/Extb
IIICcertiedbyATEXandshallbeinstalledsoas
tomaintainthespecicdegreeofprotection(IP
Code)oftheequipment.
• WiringconnectionforoutputsignalcodeQ(Low
Powertype)shallfollowthediagrambelow.
F0220.ai
Three-Wire Connection
Pressure Transmitters
Power Supply
Voltmeter
SUPPLY
+
SUPPLY –
A
+
–
+
–
Four-Wire Connection
Pressure Transmitters
Power Supply
Voltmeter
SUPPLY
+
SUPPLY –
A
+
–
+
–