YOKOGAWA EJX115A User manual

User’s
Manual
Low Flow Transmitter
EJX115A and EJA115E
IM 01C25K01-01E
IM 01C25K01-01E
9th Edition

i
IM 01C25K01-01E
Low Flow Transmitter
EJX115A and EJA115E
IM 01C25K01-01E 9th Edition
9th Edition: July 2015 (YK)
All Rights Reserved, Copyright © 2008, Yokogawa Electric Corporation
Contents
1. Introduction............................................................................................... 1-1
Regarding This Manual................................................................................................ 1-1
Trademarks ................................................................................................................... 1-2
1.1 Safe Use of This Product .................................................................................1-2
1.2 Warranty............................................................................................................. 1-3
1.3 ATEX Documentation ....................................................................................... 1-4
2. Handling Cautions.................................................................................... 2-1
2.1 ModelandSpecicationsCheck..................................................................... 2-1
2.2 Unpacking.......................................................................................................... 2-1
2.3 Storage ............................................................................................................... 2-1
2.4 Selecting the Installation Location ................................................................ 2-2
2.5 Pressure Connection........................................................................................ 2-2
2.6 WaterproongofCableConduitConnections .............................................. 2-2
2.7 Restrictions on Use of Radio Transceivers ................................................... 2-2
2.8 Insulation Resistance and Dielectric Strength Test......................................2-3
2.9 Installation of an Explosion-Protected Instrument.......................................2-3
2.9.1 FM Approval.......................................................................................2-4
2.9.2 CSACertication................................................................................2-6
2.9.3 ATEXCertication..............................................................................2-8
2.9.4 IECExCertication...........................................................................2-12
2.10 EMC Conformity Standards...........................................................................2-15
2.11 Pressure Equipment Directive (PED) ...........................................................2-16
2.12 Safety Requirement Standards .....................................................................2-16
3. Component Names .................................................................................. 3-1
4. Installation................................................................................................. 4-1
4.1 Precautions ....................................................................................................... 4-1
4.2 Mounting ........................................................................................................... 4-1
4.3 Changingthemanifoldassembly ................................................................... 4-2
4.4 Swapping the High/Low-pressure Side Connection..................................... 4-2
4.5 Rotating Transmitter Section...........................................................................4-3
4.6 Changing the Direction of Integral Indicator ................................................. 4-3

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IM 01C25K01-01E
5. Installing Impulse Piping......................................................................... 5-1
5.1 Process Piping Installation Precautions........................................................5-1
5.1.1 Connecting Process Piping to the Transmitter ..................................5-1
5.1.2 Routing the Process Piping ...............................................................5-1
5.2 Process Piping Connection Examples...........................................................5-2
6. Wiring......................................................................................................... 6-1
6.1 Wiring Precautions ........................................................................................... 6-1
6.2 Selecting the Wiring Materials......................................................................... 6-1
6.3 Connections of External Wiring to Terminal Box.......................................... 6-1
6.3.1 Power Supply Wiring Connection......................................................6-2
6.3.2 External Indicator Connection............................................................6-2
6.3.3 Communicator Connection................................................................ 6-2
6.3.4 Check Meter Connection...................................................................6-2
6.3.5 Status Output Connection..................................................................6-3
6.4 Wiring ................................................................................................................. 6-3
6.4.1 LoopConguration ............................................................................6-3
6.4.2 Wiring Installation...............................................................................6-4
6.5 Grounding.......................................................................................................... 6-5
6.6 Power Supply Voltage and Load Resistance.................................................6-5
7. Operation................................................................................................... 7-1
7.1 Preparation for Starting Operation .................................................................7-1
7.2 Zero Point Adjustment ..................................................................................... 7-2
7.3 Starting Operation ............................................................................................ 7-3
7.4 Shutting Down Operation ................................................................................ 7-3
7.5 Transmitter Measurement Range (Determining Differential Pressure Range)
............................................................................................................................. 7-3
7.5.1 Determining the Differential Pressure Range....................................7-3
7.5.2 Example of Calculation...................................................................... 7-4
7.6 Venting or Draining Transmitter Pressure-detector Section ....................... 7-6
7.6.1 Draining Condensate......................................................................... 7-6
7.6.2 Venting Gas........................................................................................7-6
7.7 Local Parameter Setting................................................................................... 7-6
7.7.1 Local Parameter Setting (LPS) Overview..........................................7-7
7.7.2 Activating Local Parameter Setting ...................................................7-8
7.7.3 Parameter Setting Review................................................................. 7-8
7.7.4 TagNumberConguration.................................................................7-9
7.7.5 PressureUnitConguration............................................................... 7-9
7.7.6 PressureLRV/URVConguration .....................................................7-9
7.7.7 DampingTimeConstantConguration ...........................................7-10
7.7.8 OutputModeConguration .............................................................7-10

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IM 01C25K01-01E
7.7.9 DisplayOut1Conguration.............................................................7-10
7.7.10 Re-range by applying actual pressure (LRV/URV)..........................7-10
7.7.11 Save or Cancel................................................................................. 7-11
7.7.12 AbortConguration.......................................................................... 7-11
7.7.12.1 AbortConguration(Menu) ............................................ 7-11
7.7.12.2 AbortConguration(Parameter) .................................... 7-11
7.7.13 Local Parameter Setting Lock.......................................................... 7-11
7.7.14 Others .............................................................................................. 7-11
8. Maintenance.............................................................................................. 8-1
8.1 Overview ............................................................................................................ 8-1
8.2 CalibrationInstrumentsSelection .................................................................. 8-1
8.3 Calibration ......................................................................................................... 8-1
8.4 DisassemblyandReassembly ........................................................................ 8-3
8.4.1 Replacing the Integral Indicator .........................................................8-3
8.4.2 Replacing the CPU Board Assembly.................................................8-4
8.4.3 Replacing the Process Connector Gaskets.......................................8-4
8.4.4 CleaningManifoldAssemblyandReplacingOrice.......................... 8-4
8.4.5 Cleaning and Replacing the Capsule Assembly ...............................8-5
8.5 Troubleshooting................................................................................................ 8-6
8.5.1 Basic Troubleshooting .......................................................................8-6
8.5.2 Troubleshooting Flowcharts...............................................................8-7
8.5.3 Alarms and Countermeasures...........................................................8-9
9. GeneralSpecications ............................................................................ 9-1
9.1 StandardSpecications................................................................................... 9-1
9.2 ModelandSufxCodes ................................................................................... 9-4
9.3 OptionalSpecications................................................................................... 9-5
9.4 Dimensions........................................................................................................ 9-7
Revision Information
When using the Transmitters in a Safety Instrumented Systems(SIS)
application, refer to Appendix A in either IM 01C25T01-06EN for the
HART protocol or IM 01C25T03-01E for the BRAIN protocol.

<1. Introduction> 1-1
IM 01C25K01-01E
1. Introduction
ThankyouforpurchasingtheDPharpLowow
transmitter.
Your Pressure Transmitter was precisely calibrated
at the factory before shipment. To ensure both
safetyandefciency,pleasereadthismanual
carefully before you operate the instrument.
NOTE
This manual describes the hardware
congurationsofthetransmitterslistedinbelow.
Forinformationonthesoftwareconguration
and operation, please refer to either IM
01C25T03-01E for the BRAIN communication
type, or IM 01C25T01-06EN for the HART
communication type.
For FOUNDATION Fieldbus protocol type, please
refer to IM 01C25T02-01E.
For PROFIBUS PA protocol type, please refer to
IM 01C25T04-01EN.
Model Style code
EJX115A S1
EJA115E S1
To ensure correct use of this instrument, read
both the hardware and software manuals
thoroughly before use.
WARNING
When using the transmitters in a Safety
Instrumented Systems (SIS) application, refer
to Appendix 1 in either IM 01C25T01-06EN for
the HART protocol or IM 01C25T03-01E for the
BRAIN protocol. The instructions and procedures
in this section must be strictly followed in order to
maintain the transmitter for this safety level.
NOTE
When describing the model name as EJ115,
it shows the applicability for both EJX115A and
EJA115E.
Regarding This Manual
• Thismanualshouldbeprovidedtotheend
user.
• Thecontentsofthismanualaresubjectto
change without prior notice.
• Allrightsreserved.Nopartofthismanualmay
be reproduced in any form without Yokogawa’s
written permission.
• Yokogawamakesnowarrantyofanykindwith
regard to this manual, including, but not limited
to, implied warranty of merchantability and
tnessforaparticularpurpose.
• Ifanyquestionarisesorerrorsarefound,orif
any information is missing from this manual,
please inform the nearest Yokogawa sales
ofce.
• Thespecicationscoveredbythismanualare
limited to those for the standard type under the
speciedmodelnumberbreak-downanddonot
cover custom-made instruments.
• Pleasenotethatchangesinthespecications,
construction, or component parts of the
instrumentmaynotimmediatelybereected
in this manual at the time of change, provided
that postponement of revisions will not cause
difcultytotheuserfromafunctionalor
performance standpoint.
• Yokogawaassumesnoresponsibilitiesforthis
product except as stated in the warranty.
• Ifthecustomeroranythirdpartyisharmedby
the use of this product, Yokogawa assumes
no responsibility for any such harm owing to
any defects in the product which were not
predictable, or for any indirect damages.
• Thefollowingsafetysymbolsareusedinthis
manual:

<1. Introduction> 1-2
IM 01C25K01-01E
WARNING
Indicates a potentially hazardous situation which,
if not avoided, could result in death or serious
injury.
CAUTION
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.
IMPORTANT
Indicates that operating the hardware or software
in this manner may damage it or lead to system
failure.
NOTE
Draws attention to information essential for
understanding the operation and features.
Direct current
Functional grounding terminal
Caution
This symbol indicates that the operator must
refer to an explanation in the user’s manual
inordertoavoidtheriskofinjuryordeathof
personnel or damage to the instrument.
Trademarks
• ‘DPharp’,‘EJX’,‘EJA’,‘FieldMate’and‘BRAIN
TERMINAL’ are registered trademarks of
Yokogawa Electric Corporation. Company
names and product names used in this material
are registered trademarks or trademarks of their
respective owners.
• Inthismanual,trademarksorregistered
trademarks are not marked with ™ or ®.
1.1 Safe Use of This Product
For the safety of the operator and to protect the
instrument and the system, please be sure to follow
this manual’s safety instructions when handling this
instrument. If these instructions are not heeded,
the protection provided by this instrument may be
impaired. In this case, Yokogawa cannot guarantee
that the instrument can be safely operated. Please
pay special attention to the following points:
(a) Installation
• Thisinstrumentmayonlybeinstalledbyan
engineer or technician who has an expert
knowledge of this device. Operators are not
allowed to carry out installation unless they
meet this condition.
• Withhighprocesstemperatures,caremust
be taken not to burn yourself by touching the
instrument or its casing.
• Neverloosentheprocessconnectornutswhen
the instrument is installed in a process. This can
lead to a sudden, explosive release of process
uids.
• Whendrainingcondensatefromthepressure
detector section, take appropriate precautions
to prevent the inhalation of harmful vapors and
thecontactoftoxicprocessuidswiththeskin
or eyes.
• Whenremovingtheinstrumentfroma
hazardousprocess,avoidcontactwiththeuid
and the interior of the meter.
• Allinstallationshallcomplywithlocalinstallation
requirementsandthelocalelectricalcode.
(b) Wiring
• Theinstrumentmustbeinstalledbyan
engineer or technician who has an expert
knowledge of this instrument. Operators are not
permitted to carry out wiring unless they meet
this condition.
• Beforeconnectingthepowercables,please
conrmthatthereisnocurrentowingthrough
the cables and that the power supply to the
instrument is switched off.

<1. Introduction> 1-3
IM 01C25K01-01E
(c) Operation
• Wait5min.afterthepoweristurnedoff,before
opening the covers.
(d) Maintenance
• Pleasecarryoutonlythemaintenance
procedures described in this manual. If you
requirefurtherassistance,pleasecontactthe
nearestYokogawaofce.
• Careshouldbetakentopreventthebuildupof
dust or other materials on the display glass and
the name plate. To clean these surfaces, use a
soft, dry cloth.
(e) Explosion Protected Type Instrument
• Usersofexplosionproofinstrumentsshould
referrsttosection2.9(Installationofan
Explosion Protected Instrument) of this manual.
• Theuseofthisinstrumentisrestrictedtothose
who have received appropriate training in the
device.
• Takecarenottocreatesparkswhenaccessing
the instrument or peripheral devices in a
hazardous location.
(f) Modication
• Yokogawawillnotbeliableformalfunctionsor
damageresultingfromanymodicationmade
to this instrument by the customer.
(g) Product Disposal
• Theinstrumentshouldbedisposedofin
accordance with local and national legislation/
regulations.
(h) Authorized Representative in EEA
• InrelationtotheCEMarking,The
authorised representative for this product
in the EEA (European Economic Area) is:
Yokogawa Europe B.V. Euroweg 2, 3825 HD
Amersfoort,The Netherlands
1.2 Warranty
• Thewarrantyshallcovertheperiodnotedon
thequotationpresentedtothepurchaseratthe
time of purchase. Problems occurring during
the warranty period shall basically be repaired
free of charge.
• Ifanyproblemsareexperiencedwiththis
instrument, the customer should contact the
Yokogawa representative from which this
instrument was purchased or the nearest
Yokogawaofce.
• Ifaproblemariseswiththisinstrument,
please inform us of the nature of the problem
and the circumstances under which it
developed,includingthemodelspecication
and serial number. Any diagrams, data and
other information you can include in your
communication will also be helpful.
• Thepartyresponsibleforthecostofxingthe
problem shall be determined by Yokogawa
following an investigation conducted by
Yokogawa.
• Thepurchasershallbeartheresponsibilityfor
repair costs, even during the warranty period, if
the malfunction is due to:
- Improperand/orinadequatemaintenanceby
the purchaser.
- Malfunction or damage due to a failure
to handle, use, or store the instrument in
accordancewiththedesignspecications.
- Useoftheproductinquestioninalocation
notconformingtothestandardsspeciedby
Yokogawa, or due to improper maintenance
of the installation location.
- Failureordamageduetomodicationor
repair by any party except Yokogawa or an
approved representative of Yokogawa.
- Malfunction or damage from improper
relocationoftheproductinquestionafter
delivery.
- Reasonofforcemajeuresuchasres,
earthquakes,storms/oods,thunder/
lightening, or other natural disasters, or
disturbances, riots, warfare, or radioactive
contamination.

<1. Introduction> 1-4
IM 01C25K01-01E
1.3 ATEX Documentation
This is only applicable to the countries in European Union.
GB
DK
I
E
NL
SF
P
F
D
S
LT
LV
PL
EST
SLO
H
BG
RO
M
CZ
SK
GR

<2. Handling Cautions> 2-1
IM 01C25K01-01E
2. Handling Cautions
This chapter provides important information on how
to handle the transmitter. Read this carefully before
using the transmitter.
The transmitters are thoroughly tested at the
factory before shipment. When taking delivery of an
instrument, visually check them to make sure that
no damage occurred during shipment.
Also check that all transmitter mounting hardware
showningure2.1isincluded.Ifthetransmitter
is ordered without the mounting bracket and the
process connector, the transmitter mounting
hardware will not be included. After checking the
transmitter, carefully repack it in its box and keep it
there until you are ready to install it.
U-bolt nut
U-bolt nut
U-bolt
U-bolt
Mounting bracket
(L type)
Transmitter mounting bolt
Transmitter
mounting bolt
Mounting bracket
(Flat type) F0201.ai
Figure 2.1 Transmitter Mounting Hardware
2.1 ModelandSpecications
Check
Themodelnameandspecicationsarewrittenon
the name plate attached to the case.
F0202.ai
Figure 2.2 Name Plate
2.2 Unpacking
Keep the transmitter in its original packaging to
prevent it from being damaged during shipment.
Do not unpack the transmitter until it reaches the
installation site.
2.3 Storage
The following precautions must be observed when
storing the instrument, especially for a long period.
(a) Select a storage area which meets the following
conditions:
• Itisnotexposedtorainorsubjecttowater
seepage/leaks.
• Vibrationandshockarekepttoaminimum.
• Ithasanambienttemperatureandrelative
humidity within the following ranges.
Ambient temperature:
–40* to 85°C without integral indicator
–30* to 80°C with integral indicator
*–15°Cwhen/HEisspecied.
Relative humidity:
0% to 100% R.H.
Preferred temperature and humidity:
approx. 25°C and 65% R.H.

<2. Handling Cautions> 2-2
IM 01C25K01-01E
(b) When storing the transmitter, repack it carefully
in the packaging that it was originally shipped
with.
(c) If the transmitter has been used, thoroughly
cleanthechambersinsidethecoveranges
andintegraloworiceunit,sothatthere
isnoprocessuidremaininginside.Before
placing it in storage, also make sure that the
pressure-detector is securely connected to the
transmitter section.
2.4 Selecting the Installation
Location
The transmitter is designed to withstand severe
environmental conditions. However, to ensure
that it will provide years of stable and accurate
performance, take the following precautions when
selecting the installation location.
(a) Ambient Temperature
Avoidlocationssubjecttowidetemperature
variationsorasignicanttemperaturegradient.
If the location is exposed to radiant heat from
plantequipment,provideadequatethermal
insulation and/or ventilation.
(b) Ambient Atmosphere
Do not install the transmitter in a corrosive
atmosphere. If this cannot be avoided, there
mustbeadequateventilationaswellas
measures to prevent the leaking of rain water
and the presence of standing water in the
conduits.
(c) Shock and Vibration
Although the transmitter is designed to be
relatively resistant to shock and vibration, an
installation site should be selected where this is
kept to a minimum.
(d) Installation of Explosion-protected Transmitters
An explosion-protected transmitters is
certiedforinstallationinahazardousarea
containingspecicgastypes.Seesubsection
2.9 “Installation of an Explosion-Protected
Transmitters.”
2.5 Pressure Connection
WARNING
• Neverloosentheprocessconnectorbolts
when an instrument is installed in a process.
The device is under pressure, and a loss of
seal can result in a sudden and uncontrolled
releaseofprocessuid.
• Whendrainingtoxicprocessuidsthathave
condensed inside the pressure detector,
take appropriate steps to prevent the contact
ofsuchuidswiththeskinoreyesandthe
inhalationofvaporsfromtheseuids.
The following precautions must be observed
in order to safely operate the transmitter under
pressure.
(a) Make sure that all the process connector bolts
aretightenedrmly.
(b) Make sure that there are no leaks in the impulse
piping.
(c) Never apply a pressure higher than the
speciedmaximumworkingpressure.
2.6 WaterproongofCable
Conduit Connections
Apply a non-hardening sealant to the threads
to waterproof the transmitter cable conduit
connections.(Seegure6.8,6.9and6.10.)
2.7 Restrictions on Use of Radio
Transceivers
IMPORTANT
Although the transmitter has been designed to
resisthighfrequencyelectricalnoise,ifaradio
transceiver is used near the transmitter or its
external wiring, the transmitter may be affected
byhighfrequencynoisepickup.Totestthis,start
out from a distance of several meters and slowly
approach the transmitter with the transceiver
while observing the measurement loop for noise
effects. Thereafter use the transceiver outside
therangewherethenoiseeffectswererst
observed.

<2. Handling Cautions> 2-3
IM 01C25K01-01E
2.8 Insulation Resistance and
Dielectric Strength Test
Since the transmitter has undergone insulation
resistance and dielectric strength tests at the factory
before shipment, normally these tests are not
required.Iftheneedarisestoconductthesetests,
heed the following:
(a) Donotperformsuchtestsmorefrequentlythan
is absolutely necessary. Even test voltages that
do not cause visible damage to the insulation
may degrade the insulation and reduce safety
margins.
(b) Never apply a voltage exceeding 500 V DC
(100 V DC with an internal lightning protector)
for the insulation resistance test, nor a voltage
exceeding 500 V AC (100 V AC with an internal
lightning protector) for the dielectric strength
test.
(c) Before conducting these tests, disconnect
all signal lines from the transmitter terminals.
The procedure for conducting these tests is as
follows:
•InsulationResistanceTest
1) Short-circuit the + and – SUPPLY terminals
in the terminal box. In case of 1 to 5 V output,
short-circuit the SUPPLY+, SUPPLY – and A
(VOUT +) terminals.
2) Turn OFF the insulation tester. Then connect
the insulation tester plus (+) lead wire to the
shorted SUPPLY terminals and the minus (–)
leadwire to the grounding terminal.
3) Turn ON the insulation tester power and
measure the insulation resistance. The voltage
shouldbeappliedasbrieyaspossibletoverify
thattheinsulationresistanceisatleast20MΩ.
4) After completing the test and being very careful
not to touch exposed conductors disconnect the
insulationtesterandconnecta100kΩresistor
between the grounding terminal and the short-
circuiting SUPPLY terminals. Leave this resistor
connected at least one second to discharge any
static potential. Do not touch the terminals while
it is discharging.
•DielectricStrengthTest
1) Short-circuit the + and – SUPPLY terminals
in the terminal box. In case of 1 to 5 V output,
short-circuit the SUPPLY+, SUPPLY – and A
(VOUT +) terminals.
2) Turn OFF the dielectric strength tester. Then
connect the tester between the shorted
SUPPLY terminals and the grounding terminal.
Be sure to connect the grounding lead of the
dielectric strength tester to the ground terminal.
3) Set the current limit on the dielectric strength
tester to 10 mA, then turn ON the power and
graduallyincreasethetestvoltagefrom‘0’to
thespeciedvoltage.
4)Whenthespeciedvoltageisreached,holdit
for one minute.
5) After completing this test, slowly decrease the
voltage to avoid any voltage surges.
2.9 Installation of an Explosion-
Protected Instrument
NOTE
For FOUNDATION Fieldbus explosion protected
type, please refer to IM 01C22T02-01E.
For PROFIBUS PA explosion protected type,
please refer to IM 01C25T04-01EN.
Ifacustomermakesarepairormodicationto
an intrinsically safe or explosionproof instrument
and the instrument is not restored to its original
condition, its intrinsically safe or explosionproof
construction may be compromised and the
instrument may be hazardous to operate. Please
contact Yokogawa before making any repair or
modicationtoaninstrument.
CAUTION
Thisinstrumenthasbeentestedandcertied
as being intrinsically safe or explosionproof.
Please note that severe restrictions apply to this
instrument’s construction, installation, external
wiring, maintenance and repair. A failure to abide
by these restrictions could make the instrument a
hazard to operate.
WARNING
Maintaining the safety of explosionproof
equipmentrequiresgreatcareduringmounting,
wiring,andpiping.Safetyrequirementsalso
place restrictions on maintenance and repair.
Please read the following sections very carefully.

<2. Handling Cautions> 2-4
IM 01C25K01-01E
WARNING
The range setting switch must not be used in a
hazardous area.
IMPORTANT
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.
IMPORTANT
All the blind plugs which accompany the EJX/
EJA-E transmitters upon shipment from the
factoryarecertiedbytheapplicableagencyin
combination with those transmitters. The plugs
whicharemarkedwiththesymbols“◊Ex”on
theirsurfacesarecertiedonlyincombination
with the EJX/EJA-E transmitters.
2.9.1 FM Approval
a. FM Intrinsically Safe Type
Caution for FM intrinsically safe type. (Following
contents refer “DOC. No. IFM022-A12”)
Note 1. EJX/EJA-E Series Differential, gauge
and absolute pressure transmitters with
optional code /FS1 are applicable for use
in hazardous locations.
• ApplicableStandard:FM3600,FM3610,
FM3611, FM3810
• IntrinsicallySafeforClassI,Division1,
Groups A, B, C & D. Class II, Division 1,
Groups E, F & G and Class III, Division 1,
Class I, Zone 0 in Hazardous Locations, AEx
ia IIC
• NonincendiveforClassI,Division2,Groups
A, B, C & D. Class II, Division 2, Groups F &
G, Class I, Zone 2, Groups IIC, in Hazardous
Locations.
• Enclosure:Type4X
• TemperatureClass:T4
• Ambienttemperature:–60to60°C
Note 2. Entity Parameters
• IntrinsicallySafeApparatusParameters
[Groups A, B, C, D, E, F and G]
Vmax = 30 V Ci = 6 nF
Imax = 200 mA Li = 0 µH
Pmax = 1 W
* Associated Apparatus Parameters
(FM approved barriers)
Voc≤30V Ca > 6 nF
Isc≤200mA La > 0 µH
Pmax≤1W
• IntrinsicallySafeApparatusParameters
[Groups C, D, E, F and G]
Vmax = 30 V Ci = 6 nF
Imax = 225 mA Li = 0 µH
Pmax = 1 W
* Associated Apparatus Parameters
(FM approved barriers)
Voc≤30V Ca > 6 nF
Isc≤225mA La > 0 µH
Pmax≤1W
• EntityInstallationRequirements
 Vmax≥VocorUoorVt,Imax≥IscorIoorIt,
 Pmax(orPo)≤Pi,CaorCo≥Ci+Ccable,
 LaorLo≥Li+Lcable
Note 3. Installation
• Barriermustbeinstalledinanenclosurethat
meetstherequirementsofANSI/ISAS82.01.
• Controlequipmentconnectedtobarriermust
not use or generate more than 250 V rms or
V dc.
• Installationshouldbeinaccordancewith
ANSI/ISA RP12.6 “Installation of Intrinsically
SafeSystemsforHazardous(Classied)
Locations” and the National Electric Code
(ANSI/NFPA 70).
• Thecongurationofassociatedapparatus
must be FMRC Approved.
• Dust-tightconduitsealmustbeusedwhen
installed in a Class II, III, Group E, F and G
environments.
• Associatedapparatusmanufacturer’s
installation drawing must be followed when
installing this apparatus.
• Themaximumpowerdeliveredfromthe
barrier must not exceed 1 W.
• Noteawarninglabelworded
“SUBSTITUTION OF COMPONENTS MAY
IMPAIR INTRINSIC SAFETY,” and “INSTALL
IN ACCORDANCE WITH DOC. No. IFM022-
A12”

<2. Handling Cautions> 2-5
IM 01C25K01-01E
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
Factory Mutual Intrinsically safe and
Nonincendive Approval.
F0203-1.ai
Class I, II, III, Division 1,
Groups A, B, C, D, E, F, G
Class 1, Zone 0 in
Hazardous (Classified)
Locations AEx ia IIC
Pressure Transmitters Safety Barrier
Supply
Hazardous Location Nonhazardous Location
General
Purpose
Equipment
+
–
+
–
+
–
+
–
[Intrinsically Safe]
F0203-2.ai
Pressure Transmitters
Supply
Hazardous Location Nonhazardous Location
+
–
+
–
Class I, II, Division 2,
Groups A, B, C, D, F, G
Class 1, Zone 2, Group IIC,
in Hazardous (Classified)
Locations
Not Use
Safety Barrier
[Nonincendive]
General
Purpose
Equipment
b. FMExplosionproofType
Caution for FM explosionproof type.
Note 1. EJX/EJA-E Series pressure transmitters
with optional code /FF1 are applicable for
use in hazardous locations.
• ApplicableStandard:FM3600,FM3615,
FM3810, ANSI/NEMA 250
• Explosionproof for Class I, Division 1,
Groups B, C and D.
• Dust-ignitionproof for Class II/III, Division 1,
Groups E, F and G.
• Enclosure:Type4X
• Temperature Class: T6
• Ambient Temperature: –40 to 60°C
• 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)
• Output signal: 4 to 20 mA
15 mA (FOUNDATION Fieldbus and
PROFIBUS PA type)
1 to 5 V (Low Power type)
Note 2. Wiring
• All wiring shall comply with National Electrical
Code ANSI/NFPA70 and Local Electrical
Codes.
• When installed in Division 1, “FACTORY
SEALED, CONDUIT SEAL NOT
REQUIRED.”
• Wiring connection for output signal code Q
(Low Power type) shall follow the diagram
below.
F0211.ai
Three-Wire Connection
Pressure Transmitters
Power Supply
Voltmeter
SUPPLY
+
SUPPLY –
A
+
–
+
–
Four-Wire Connection
Pressure Transmitters
Power Supply
Voltmeter
SUPPLY
+
SUPPLY –
A
+
–
+
–
Note 3. Operation
• Keep the “WARNING” nameplate attached to
the transmitter.
WARNING: OPEN CIRCUIT BEFORE
REMOVING COVER. FACTORY SEALED,
CONDUIT SEAL NOT REQUIRED.
INSTALL IN ACCORDANCE WITH THE
USERS MANUAL IM 01C25.
• Take care not to generate mechanical
sparking when accessing to the instrument
and peripheral devices in a hazardous
location.
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
Factory Mutual Explosionproof Approval.

<2. Handling Cautions> 2-6
IM 01C25K01-01E
c. FM Intrinsically Safe Type/FM
Explosionproof Type
EJX/EJA-E Series pressure transmitters with
optional code /FU1 or /V1U1 can be selected
the type of protection (FM Intrinsically Safe
or FM Explosionproof) 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. In order to avoid confusion, unnecessary
marking is crossed out on the label other
than the selected type of protection when
the transmitter is installed.
2.9.2 CSACertication
a. CSA Intrinsically Safe Type
Caution for CSA Intrinsically safe and
nonincendive type. (Following contents refer to
“DOC No. ICS013-A13”)
Note 1. EJX/EJA-E Series differential, gauge,
and absolute pressure transmitters with
optional code /CS1 are applicable for use
in hazardous locations
Certicate:1606623
[For CSA C22.2]
• Applicable Standard: C22.2 No.0, C22.2
No.0.4, C22.2 No.25, C22.2 No.94, C22.2
No.157, C22.2 No.213, C22.2 No.61010-1,
C22.2 No.61010-2-030, C22.2 No.60079-0
• Intrinsically Safe for Class I, Division 1,
Groups A, B, C & D, Class II, Division 1,
Groups E, F & G, Class III, Division 1
• Nonincendive for Class I, Division 2, Groups
A, B, C & D, Class II, Division 2, Groups F &
G, Class III, Division 1
• Enclosure:Type4X
• Temp. Code: T4
• Amb. Temp.: –50* to 60°C
*–15°Cwhen/HEisspecied.
• Process Temperature: 120°C max.
[For CSA E60079]
• Applicable Standard: CAN/CSA E60079-11,
CAN/CSA E60079-15, IEC 60529:2001
• Ex ia IIC T4, Ex nL IIC T4
• Ambient Temperature: –50* to 60°C
*–15°Cwhen/HEisspecied.
• Max. Process Temp.: 120°C
• Enclosure: IP66/IP67
Note 2. Entity Parameters
• Intrinsicallysaferatingsareasfollows:
Maximum Input Voltage (Vmax/Ui) = 30 V
Maximum Input Current (Imax/Ii) = 200 mA
Maximum Input Power (Pmax/Pi) = 0.9 W
Maximum Internal Capacitance (Ci) = 10 nF
Maximum Internal Inductance (Li) = 0 µH
• Type"n"orNonincendiveratingsareas
follows:
Maximum Input Voltage (Vmax/Ui) = 30 V
Maximum Internal Capacitance (Ci) = 10 nF
Maximum Internal Inductance (Li) = 0 µH
• InstallationRequirements
 Uo≤Ui,Io≤Ii,Po≤Pi,
 Co≥Ci+Ccable,Lo≥Li+Lcable
 Voc≤Vmax,Isc≤Imax,
 Ca≥Ci+Ccable,La≥Li+Lcable
Uo, Io, Po, Co, Lo, Voc, Isc, Ca and La are
parameters of barrier.
Note 3. Installation
• Inanysafetybarreirusedoutputcurrent
must be limited by a resistor 'R' such that
Io=Uo/R or Isc=Voc/R.
• ThesafetybarriermustbeCSAcertied.
• Input voltage of the safety barrier must be
less than 250 Vrms/Vdc.
• Installation should be in accordance with
Canadian Electrical Code Part I and Local
Electrical Code.
• Dust-tight conduit seal must be used when
installed in Class II and III environments.
• Theinstrumentmodicationorparts
replacement by other than authorized
representative of Yokogawa Electric
Corporation and Yokogawa Corporation
of America is prohibited and will void
Canadian Standards Intrinsically safe and
nonincendiveCertication.
F0204-1.ai
Class I, II, III, Division 1,
Groups A, B, C, D, E, F, G
Pressure Transmitters Safety Barrier
Supply
Hazardous Location Nonhazardous Location
General
Purpose
Equipment
+
–
+
–
+
–
+
–
[Intrinsically Safe]
Group IIC, Zone 0

<2. Handling Cautions> 2-7
IM 01C25K01-01E
F0204-2.ai
Pressure Transmitters
Supply
Hazardous Location Nonhazardous Location
+
–
+
–
Class I, II, Division 2,
Groups A, B, C, D, F, G
Class III, Division 1.
Not Use
Safety Barrier
[Nonincendive]
CSA Certified
Equipment
([nL] or
nonincendive)
Group IIC, Zone 2
b. CSAExplosionproofType
Caution for CSA explosionproof type.
Note 1. EJX/EJA-E Series pressure transmitters
with optional code /CF1 are applicable for
use in hazardous locations:
• Certicate:2014354
• Applicable Standard: C22.2 No.0,
C22.2 No.0.4, C22.2 No.0.5, C22.2 No.25,
C22.2 No.30, C22.2 No.94,
C22.2 No.61010-1, C22.2 No.60079-0,
C22.2 No.61010-2-030, C22.2 No.60079-1
• Explosion-proof for Class I, Groups B, C and
D.
• Dustignition-proof for Class II/III, Groups E, F
and G.
• Enclosure:Type4X
• Temperature Code: T6...T4
• Ex d IIC T6...T4
• Enclosure: IP66/IP67
• Maximum Process Temperature: 120°C (T4),
100°C (T5), 85°C (T6)
• Ambient Temperature: –50* to 75°C (T4),
–50* to 80°C (T5), –50* to 75°C (T6)
*–15°Cwhen/HEisspecied.
• 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)
• Output Signal: 4 to 20 mA dc
15 mA (FOUNDATION Fieldbus and
PROFIBUS PA type)
1 to 5 V (Low Power type)
Note 2. Wiring
• All wiring shall comply with Canadian
Electrical Code Part I and Local Electrical
Codes.
• In hazardous location, wiring shall be in
conduitasshowninthegure.
• WARNING:
A SEAL SHALL BE INSTALLED WITHIN
50cm OF THE ENCLOSURE.
UN SCELLEMENT DOIT ÊTRE INSTALLÉ À
MOINS DE 50cm DU BOÎTIER.
• WARNING:
WHEN INSTALLED IN CL.I, DIV 2, SEAL
NOT REQUIRED.
UNE FOIS INSTALLÉ DANS CL I, DIV 2,
AUCUN JOINT N'EST REQUIS.
Non-hazardous
Location
Equipment
42 V DC Max.
4 to 20 mA DC
Signal
Non-Hazardous
Locations
Hazardous Locations Division 1
50 cm Max.
Sealing Fitting Conduit
Transmitter
F0205-1.ai
Non-Hazardous
Locations
Hazardous Locations Division 2
Non-hazardous
Location
Equipment
42 V DC Max.
4 to 20 mA DC
Signal
Sealing Fitting
Transmitter
F0205-2.ai
• Allwiringshallcomplywithlocalinstallation
requirementsandlocalelectricalcode.
• Inhazardouslocations,thecableentry
devicesshallbeofacertiedameproof
type, suitable for the conditions of use and
correctly installed.
• Unusedaperturesshallbeclosedwith
suitableameproofcertiedblanking
elements.(Theplugattachedisameproof
certied.)
• Wiring connection for output signal code Q
(Low Power type) shall follow the diagram
below.

<2. Handling Cautions> 2-8
IM 01C25K01-01E
F0212.ai
Three-Wire Connection
Pressure Transmitters
Power Supply
Voltmeter
SUPPLY
+
SUPPLY –
A
+
–
+
–
Four-Wire Connection
Pressure Transmitters
Power Supply
Voltmeter
SUPPLY
+
SUPPLY –
A
+
–
+
–
Note 3. Operation
• WARNING:
AFTER DE-ENERGIZING, DELAY 5
MINUTES BEFORE OPENING.
APRÉS POWER-OFF, ATTENDRE 5
MINUTES AVANT D'OUVRIR.
• WARNING:
 WHENAMBIENTTEMPERATURE≥65°C,
USETHEHEAT-RESISTINGCABLES≥
90°C.
QUAND LA TEMPÉRATURE AMBIANTE
≥65°C,UTILISEZDESCÂBLES
RÉSISTANTESÁLACHALEUR≥90°C.
• Take care not to generate mechanical
sparking when accessing to the instrument
and peripheral devices in a hazardous
location.
Note 4. Maintenance and Repair
• Theinstrumentmodicationorparts
replacement by other than authorized
representative of Yokogawa Electric
Corporation and Yokogawa Corporation of
America is prohibited and will void Canadian
StandardsExplosionproofCertication.
c CSA Intrinsically Safe Type/CSA
Explosionproof Type
EJX/EJA-E Series pressure transmitters with
optional code /CU1 or /V1U1 can be selected
the type of protection (CSA Intrinsically Safe
or CSA Explosionproof) 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. In order to avoid confusion, unnecessary
marking is crossed out on the label other
than the selected type of protection when
the transmitter is installed.
2.9.3 ATEXCertication
(1) Technical Data
a. ATEX Intrinsically Safe Ex ia
Caution for ATEX Intrinsically safe type.
Note 1. EJX/EJA-E Series pressure transmitters
with optional code /KS21 for potentially
explosive atmospheres:
• No. DEKRA 11ATEX0228 X
• Applicable Standard:
EN 60079-0:2009, EN 60079-11:2007,
EN 60079-26:2007, EN 61241-11:2006
• Type of Protection and Marking code:
Ex ia IIC T4 Ga
Ex ia IIIC T85 ºC T100 ºC T120 ºC Db
• Group: II
• Category: 1G, 2D
• AmbientTemperatureforEPLGa:
–50 to 60°C
• AmbientTemperatureforEPLDb:
–30* to 60°C
*–15°Cwhen/HEisspecied.
• Process Temperature (Tp.): 120°C max.
• Maximum Surface Temperature for EPL Db:
T85°C (Tp.: 80°C)
T100°C (Tp.: 100°C)
T120°C (Tp.: 120°C)
• Enclosure: IP66 / IP67
Note 2 Electrical Data
• In type of explosion protection intrinsic safety
Ex ia IIC or Ex ia IIIC, only for connection to a
certiedintrinsicallysafecircuitwithfollowing
maximum values:
Ui = 30 V
Ii = 200 mA
Pi = 0.9 W
(Linear Source)
Maximum internal capacitance; Ci = 27.6 nF
Maximum internal inductance; Li = 0 µH

<2. Handling Cautions> 2-9
IM 01C25K01-01E
Note 3. Installation
• Refertothecontroldrawing.All wiring shall
complywithlocalinstallationrequirements.
Pressure Transmitters
Supply Safety Barrier *1
Nonhazardous Location
[Control Drawing]
Hazardous Location
+
–
+
–
F0206.ai
*1: In any safety barriers used the output current must be
limited by a resistor “R” such that Io=Uz/R.
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
DEKRAIntrinsicallysafeCertication.
Note 5. Special Conditions for Safe Use
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
generation of electrostatic 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FlameproofType
CautionforATEXameprooftype.
Note 1. EJX/EJA-E Series pressure transmitters
with optional code /KF22 for potentially
explosive atmospheres:
• No.KEMA07ATEX0109X
• ApplicableStandard:EN60079-0:2009,
EN 60079-1:2007, EN 60079-31:2009
• 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)
• MaximumProcessTemperature(Tp.)for
gas-proof:
85°C (T6), 100°C (T5), and 120°C (T4)
• Maximum Surface Temperature for dust-
proof:
T85°C (Tamb.: –30* to 75°C, Tp.: 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)
• Output signal: 4 to 20 mA
15 mA (FOUNDATION Fieldbus and
PROFIBUS PA type)
1 to 5 V (Low Power 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.

<2. Handling Cautions> 2-10
IM 01C25K01-01E
F0213.ai
Three-Wire Connection
Pressure Transmitters
Power Supply
Voltmeter
SUPPLY
+
SUPPLY –
A
+
–
+
–
Four-Wire Connection
Pressure Transmitters
Power Supply
Voltmeter
SUPPLY
+
SUPPLY –
A
+
–
+
–
Note 4. Operation
• Keep the “WARNING” label attached to the
transmitter.
WARNING: AFTER DE-ENERGIZING,
DELAY 5 MINUTES BEFORE OPENING.
WHENTHEAMBIENTTEMP.≥65°C,USE
HEAT-RESISTING CABLE AND CABLE
GLAND ≥90°C.
• Take care not to generate mechanical
sparking when accessing to the instrument
and peripheral devices in a hazardous
location.
Note 5. Special Conditions for Safe Use
WARNING
• Electrostaticchargemaycauseanexlosion
hazard. Avoid any actions that cause the
generation of electrostatic charge, such as
rubbing with a dry cloth on coating face of
the product.
• 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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.
• Theinstrumentmodicationorparts
replacement by other than an authorized
Representative of Yokogawa Electric
Corporation is prohibited and will void the
certication.
c. ATEX Intrinsically Safe Type/ATEX
Flameproof Type
EJX/EJA-E Series pressure transmitters with
optional code /KU22 or /V1U1 can be selected
the type of protection ATEX Flameproof,
Intrinsically Safe. Ex ia, or Ex ic for use in
hazardous area.
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 user’s 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.
● ATEXIntrinsicallySafeExic
Caution for ATEX intrinsically safe Ex ic
• ApplicableStandard:
EN 60079-0:2009/EN 60079-0:2012,
EN 60079-11:2012
• TypeofProtectionandMarkingCode:
II 3G Ex ic IIC T4 Gc
• AmbientTemperature:–30*to+60°C
*–15°Cwhen/HEisspecied.
• AmbientHumidity:
0 to 100% (No condensation)
• MaximumProcessTemperature:120°C
• IPCode:IP66
• Ambientpollutiondegree:2
• Overvoltagecategory:I
Note 1. Electrical Data
Ui = 30 V
Ci = 27.6 nF
Li = 0 µH
Note 2. Installation
• Allwiringshallcomplywithlocalinstallation
requirements.(refertothecontroldrawing)
• Cableglands,adaptersand/orblanking
elements shall be of Ex “n”, Ex “e” or Ex “d”
and shall be installed so as to maintain the
specieddegreeofprotection(IPCode)of
the transmitters.

<2. Handling Cautions> 2-11
IM 01C25K01-01E
Note 3. Maintenance and Repair
• Theinstrumentmodicationorparts
replacement by other than authorized
representative of Yokogawa Electric
Corporation is prohibited and will void ATEX
intrinsically safe.
Associated
Apparatus
Transmitter
Nonhazardous Area
[Control drawing]
Hazardous Area
+
–
F0207.ai
Note4. SpecicConditions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 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.
(2) Electrical Connection
A mark indicating the electrical connection type
is stamped near the electrical connection port.
These marks are as followed.
F0208.ai
Location of the mark
Screw Size Marking
ISO M20 × 1.5 female
ANSI 1/2 NPT female
M
N or W
(3) Installation
WARNING
• Allwiringshallcomplywithlocalinstallation
requirementsandthelocalelectricalcode.
• ThereisnoneedforconduitsealinDivision
1 and Division 2 hazardous locations
because this product is sealed at the factory.
(4) Operation
WARNING
• OPENCIRCUITBEFOREREMOVING
COVER. INSTALL IN ACCORDANCE WITH
THIS USER’S MANUAL
• Takecarenottogeneratemechanical
sparking when access to the instrument and
peripheral devices in a hazardous location.
(5) Maintenance and Repair
WARNING
Theinstrumentmodicationorpartsreplacement
by other than an authorized Representative of
Yokogawa Electric Corporation is prohibited and
willvoidthecertication.

<2. Handling Cautions> 2-12
IM 01C25K01-01E
(6) Name Plate
Tag plate for intrinsically safe Ex ic
WARNING
Ex ic IIC T4 Gc
IP66
Tamb -30(-15) TO 60°C
MAX. PROCESS TEMP. 120°C
Ui=30V, Ci=27.6nF, Li=0µH
POTENTIAL ELECTROSTATIC
CHARGING HAZARD
- SEE USER’S MANUAL
Name plate
Tag plate for flameproof type
Tag plate for intrinsically safe type
F0209.ai
WARNING
D
D
WARNING
No. KEMA 07ATEX0109 X
Ex d IIC T6...T4 Gb, Ex tb IIIC T85°C Db
Enlcosure : IP66/IP67
TEMP. CLASS T6 T5 T4
MAX PROCESS TEMP.(Tp.) 85 100 120 °C
Tamb. -50 to 75 80 75 °C
T85°C(Tamb.:-30(-15) to 75°C, Tp.:85°C)(for Dust)
No. DEKRA 11ATEX 0228 X
Ex ia IIC T4 Ga Ta: -50 TO 60°C
Ex ia IIIC T85°C T100°C T120°C Db Ta:-30(-15) TO 60°C
IP66/IP67
MAX. PROCESS TEMP.(Tp.) 120°C
T85°C(Tp.:80°C), T100°C(Tp.:100°C), T120°C(Tp.:120°C)
Ui=30V, Ii=200mA , Pi=0.9W, Ci=27.6nF, Li=0µH
POTENTIAL ELECTROSTATIC
CHARGING HAZARD
- SEE USER’S MANUAL
AFTER DE-ENERGIZING, DELAY 5 MINUTES BEFORE
OPENING.
WHEN THE AMBIENT TEMP. ≥65°C, USE THE
HEAT-RESISTING CABLE & CABLE GLAND ≥ 90°C
POTENTIAL ELECTROSTATIC CHARGING HAZARD
*3
*3
MODEL:Speciedmodelcode.
STYLE: Style code.
SUFFIX:Speciedsufxcode.
SUPPLY: Supply voltage.
OUTPUT: Output signal.
MWP: Maximum working pressure.
CALRNG:Speciedcalibrationrange.
NO.: Serial number and year of production*1.
TOKYO 180-8750 JAPAN:
The manufacturer name and the address*2.
 *1:Therstdigitinthethreenumbersnexttothenine
letters of the serial number appearing after “NO.”
on the nameplate indicates the year of production.
The following is an example of a serial number for a
product that was produced in 2010:
The year 2010
91K819857 032
*2: “180-8750” is a zip code which represents the
following address.
2-9-32 Nakacho, Musashino-shi, Tokyo Japan
 *3:TheidenticationnumberofNotiedBody.
2.9.4 IECExCertication
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
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, IEC 60079-26:2006
• ExiaIICT4Ga
• AmbientTemperature:–50to60°C
• Max.ProcessTemp.:120°C
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
Note 3. Installation
• Inanysafetybarrierusedoutputcurrent
mustbelimitedbyaresistor‘R’suchthat
Io=Uz/R.