YOKOGAWA DP Harp EJX118B User manual

User’s
Manual
Yokogawa Electric Corporation
EJX118B and EJX438B
Diaphragm Sealed
Differential Pressure and
Pressure Transmitters
IM 01C27H01-01EN
IM 01C27H01-01EN
10th Edition

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IM 01C27H01-01EN
EJX118B and EJX438B
Diaphragm Sealed
Differential Pressure and Pressure Transmitters
IM 01C27H01-01EN 10th Edition
10th Edition: May 2017 (KP)
All Rights Reserved, Copyright © 2010, Yokogawa Electric Corporation
Contents
1. Introduction............................................................................................... 1-1
1.1 Safe Use of This Product .................................................................................1-2
1.2 Radio Wave........................................................................................................ 1-3
1.3 Warranty............................................................................................................. 1-4
1.4 Trademarks........................................................................................................ 1-4
1.5 ATEX Documentation ....................................................................................... 1-5
1.6 Control of Pollution Caused by the Product..................................................1-6
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 Restrictions on Use of Radio Transceivers ...................................................2-3
2.7 Insulation Resistance and Dielectric Strength Test...................................... 2-3
2.8 Installation of an Explosion-Protected Instrument.......................................2-4
2.8.1 FM Approval....................................................................................... 2-4
2.8.2 CSACertication................................................................................ 2-5
2.8.3 ATEXCertication.............................................................................. 2-5
2.8.4 IECExCertication............................................................................. 2-7
2.9 EMC Conformity Standards.............................................................................2-7
2.10 Pressure Equipment Directive (PED) .............................................................2-7
2.11 Low Voltage Directive.......................................................................................2-8
2.12 Regulatory Compliance for Radio and Telecommunication........................ 2-8
2.12.1 Radio and Telecommunications Terminal Equipment Directive
(R&TTE) .................................................................................... 2-8
2.12.2 FCC compliance ................................................................................ 2-8
2.12.3 Industry Canada (IC) compliance......................................................2-9
2.13 RoHS................................................................................................................... 2-9
3. Component Names .................................................................................. 3-1

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IM 01C27H01-01EN
4. Installation................................................................................................. 4-1
4.1 Precautions ....................................................................................................... 4-1
4.2 Mounting the Diaphragm Seals....................................................................... 4-1
4.3 Transmitter Mounting ....................................................................................... 4-2
4.4 Mounting the Flushing Connection Ring.......................................................4-4
4.4.1 Mounting to Pressure Detector Section.............................................4-4
4.4.2 Mounting to Process Flange.............................................................. 4-4
4.5 AfxingtheTeonFilm .................................................................................... 4-5
4.6 Rotating Transmitter Section...........................................................................4-5
4.7 Changing the Direction of Integral Indicator ................................................. 4-6
4.8 Changing the direction of the antenna...........................................................4-6
5. Wiring......................................................................................................... 5-1
5.1 Mounting Antenna and Wiring.........................................................................5-1
5.1.1 Mounting the antenna ........................................................................5-1
5.1.2 Mounting External Antenna and Wiring Antenna Extension Cable ...5-2
5.1.2.1 Mounting of External Antenna............................................................5-2
5.1.2.2 Wiring of Antenna Extension Cable ...................................................5-2
5.1.2.3 Mounting of Arrester and Wiring ........................................................5-4
5.2 Grounding.......................................................................................................... 5-4
6. Operation................................................................................................... 6-1
6.1 Preparation for Starting Operation .................................................................6-1
6.2 Zero Point Adjustment ..................................................................................... 6-2
6.3 Starting Operation ............................................................................................ 6-3
6.4 Connecting to the Field Wireless Network.....................................................6-3
6.5 Shutting Down The Transmitter ......................................................................6-5
6.6 Venting or Draining Transmitter Process-Detector Section ........................6-5
6.6.1 Draining Condensate for Flushing Connection Ring.........................6-6
6.6.2 Venting Gas for Flushing Connection Ring........................................6-6
7. Setting Parameters................................................................................... 7-1
7.1 Environment for parameter setting.................................................................7-1
7.2 Preparing Software ........................................................................................... 7-1
7.2.1 SoftwaresfortheFieldWirelessCongurationToolandtheDevice
CongurationTool.............................................................................. 7-1
7.2.2 Software Download............................................................................ 7-1
7.3 Setting Parameters ........................................................................................... 7-1
7.3.1 Parameter Usage and Selection........................................................7-1
7.3.2 Function Block and Menu Tree..........................................................7-3
7.3.3 Parameters for Wireless Communication........................................7-10
7.3.4 Tag and Device Information .............................................................7-10
7.3.5 Unit................................................................................................... 7-11
7.3.6 Range Change................................................................................. 7-11
7.3.7 Output Mode .................................................................................... 7-11

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IM 01C27H01-01EN
7.3.8 Output Signal Low Cut Mode Setup ................................................ 7-11
7.3.9 Impulse Line Connection Orientation Setup....................................7-12
7.3.10 Integral Indicator Display Mode .......................................................7-12
7.3.11 Integral Indicator Scale Setup..........................................................7-12
7.3.12 Unit for Displayed Temperature .......................................................7-13
7.3.13 Unit for Displayed Static Pressure...................................................7-13
7.3.14 Zero Point Adjustment and Span Adjustment..................................7-13
7.3.15 Software Write Protect.....................................................................7-15
7.3.16 Switching to Deep Sleep Mode........................................................7-16
7.3.17 Switching to Silence Mode...............................................................7-16
7.4 Self-Diagnostics..............................................................................................7-17
7.4.1 IdentifyProblemsbyUsingtheDeviceCongurationTool..............7-17
7.4.2 Alert Report......................................................................................7-18
7.4.3 Checking with Integral Indicator.......................................................7-20
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 RF Assembly...............................................................8-4
8.4.3 Replacing the CPU Assembly............................................................8-4
8.4.4 Replacing the Battery Pack ...............................................................8-5
8.4.5 Replacing the Batteries......................................................................8-5
8.4.6 Handling Batteries.............................................................................. 8-6
8.5 Troubleshooting................................................................................................ 8-7
8.5.1 Basic Troubleshooting ....................................................................... 8-7
8.5.2 Troubleshooting Flowcharts............................................................... 8-8
8.5.3 Errors and Countermeasures ..........................................................8-10
9. Parameter Summary ................................................................................ 9-1
10. GeneralSpecications .......................................................................... 10-1
10.1 StandardSpecications.................................................................................10-1
10.2 ModelandSufxCodes .................................................................................10-5
10.3 OptionalSpecications............................................................................... 10-11
10.4 Dimensions ...................................................................................................10-13
Revision Information

<1. Introduction> 1-1
IM 01C27H01-01EN
1. Introduction
Thank you for purchasing the DPharp EJX
Differential Pressure and pressure transmitter.
Your EJX 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 covers the EJX118B and EJX438B
diaphragm sealed differential pressure and
pressure transmitter and describes how to use
for the detachable antenna type transmitters
(Amplierhousingcode8or9).
Unless otherwise stated, the illustrations in
this manual are of the EJX118B diaphragm
sealed differential pressure with a detachable
antenna type. Users of the other models and
specicationsshouldbearinmindthatcertain
features of their instrument will differ from those
shown in the illustrations of the EJX118B.
MODEL SUFFIX
EJX118B --8-*
--9-*
EJX438B
Regarding This Manual
• Thismanualshouldbeprovidedtotheend
user.
• Thismanualandtheidenticationtagattached
on packing box are essential parts of the
product; keep them in a safe place for future
reference.
• 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. When
productswhosesufxcodeoroptionalcodes
contain code “Z” and an exclusive document is
attached, please read it along with this manual.
• 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 and on the product:
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 or physical damage. 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.

<1. Introduction> 1-2
IM 01C27H01-01EN
NOTE
Draws attention to information essential for
understanding the operation and features.
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.
Notice
NO RIGHTS OR LICENSES, EXPRESS OR
IMPLIED, ARE GRANTED TO USE THIRD-PARTY
DEVICES IN COMBINATION WITH THESE
PRODUCTS IN A WIRELESS MESH NETWORK,
OR TO USE THIRD-PARTY SERVICES TO
ACCESS, MONITOR OR CONTROL THESE
PRODUCTS IN A WIRELESS MESH NEWORK
VIA THE INTERNET OR ANOTHER EXTERNAL
WIDE AREA NETWORK.
Patent Marking
Covered by one or more claims of patents:
http://sipcollc.com/patent-list/ and http://intusiq.com/
patent-list/.
1.1 Safe Use of This Product
This product is designed to be used by a person
with specialized knowledge. 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.

<1. Introduction> 1-3
IM 01C27H01-01EN
(c) 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.
(d) Explosion Protected Type Instrument
• Usersofexplosionproofinstrumentsshould
referrsttosection2.8(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.
• Repairormodicationtothisinstrumentby
customer will cause malfunction of explosion
protect function and hazardous situation. If you
needtorepairormodication,pleasecontact
thenearestYokogawaofce.
(e) Modication
• Yokogawawillnotbeliableformalfunctionsor
damageresultingfromanymodicationmade
to this instrument by the customer.
(f) Product Disposal
• Theinstrumentshouldbedisposedofin
accordance with local and national legislation/
regulations.
(g) Authorized Representative in EEA
• InrelationtotheCEMarking,Theauthorized
representative for this product in the EEA
(European Economic Area) is:
Yokogawa Europe B.V.
Euroweg 2, 3825 HD Amersfoort,
The Netherlands
1.2 Radio Wave
IMPORTANT
- This instrument is equipped with a wireless
modulewhichisdesignatedasacertication
of construction type as a wireless
facility for 2.4 GHz band low-power data
communication system of the Radio Act.
Refer to 2.12 “Regulatory Compliance for
Radio and Telecommunication” for detail.
- Duetothedesignatedcerticationof
construction type, users may be subject to
legal punishment in case of:
- Disassembling or modifying the wireless
module or antenna in this instrument
- Peelingoffthecerticationlabelattached
to the wireless module in this instrument
- Preventing interference with other wireless
stations
The operating frequency bandwidth of this
instrument may overlap the same range
asindustrialdevices,scienticdevices,
medical devices, microwave ovens, licensed
premises radio stations and non-licensed
speciedlow-powerradiostationsformobile
objectidenticationsystemsusedinfactory
production lines.
Before using this instrument, ensure that
neitherapremisesradiostationnorspecied
low power radio station for mobile object
identicationsystemsisinusenearby.
If this instrument causes radio wave
interference to a wireless station for mobile
objectidenticationsystems,promptly
change the frequency being used or turn
off the source of radio wave emissions.
Then,contactaYokogawaofceregarding
countermeasures to prevent interference,
such as setting up partitions.

<1. Introduction> 1-4
IM 01C27H01-01EN
1.3 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.
1.4 Trademarks
In this document, trademarks or registered
trademarks are not marked with “™” or “®”.
Product names and company names in this
document are trademarks or registered trademarks
of the respective companies

<1. Introduction> 1-5
IM 01C27H01-01EN
1.5 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

<1. Introduction> 1-6
IM 01C27H01-01EN
1.6 Control of Pollution Caused by the Product
This is an explanation for the product based on “Control of Pollution caused by Electronic Information
Products” in the People’s Republic of China.
電子情報製品汚染制御管理弁法（中国版RoHS）
产品中有害物质或元素的名称及含量
产品中有害物质或元素的名称及含量
型号 部件名称
有害物质
铅
（Pb） 汞 （Hg） 镉 （Cd） 六价铬 （Cr(VI)） 多溴联苯 （PBB） 多溴二苯醚 （PBDE）
EJX-B series
无线差压 / 压力
变送器
YTA510
无线温度变送器
壳体 ×○○○○○
膜盒组件 × ○ ○ ○ ○ ○
基板组件 × ○ ○ × ○ ○
电源连接线 × ○ ○ ○ ○ ○
天线组件 × ○ ○ ○ ○ ○
电池组件 × ○ ○ ○ ○ ○
○ ：表示该部件的所有均质材料中的有害物质的含量均在 GB/T26572 标准中所规定的限量以下。
× ：表示至少该部件的某些均质材料中的有害物质的含量均在 GB/T26572 标准中所规定的限量以上。
环保使用期限 ：
该标识适用于 SJ /T11364 中所述，在中华人民共和国销售的电子电气产品的环保使用期限。
注）该年数为“环保使用期限”，并非产品的质量保证期。

<2. Handling Cautions> 2-1
IM 01C27H01-01EN
2. Handling Cautions
This chapter provides important information on how
to handle the transmitter. Read this carefully before
using the transmitter.
EJX Series 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.
Spacer
Mounting bracket
(Flat type)
F0201.ai
U-bolt nut
Transmitter
mounting bolt
U-bolt
No antenna is provided for
Amplifier housing code 9.
Antenna
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.
: Refer to USER'S MANUAL.
Made in Japan
TOKYO 180-8750 JAPAN
MODEL
SUFFIX
SUPPLY
OUTPUT
MWP
mA DC
V DC
STYLE
CAL
RNG
NO.
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
–30 to 80°C LCD visible range
Relative humidity:
0% to 100% R.H.
Preferred temperature and humidity:
approx. 25°C and 65% R.H.
(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,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.
(d) Preferably remove the batteries for storage. For
maximum battery life, the storage temperature
should not exceed 30°C.
NOTE
When storing the instrument with a battery
pack, it is recommended to put the instrument in
Deep Sleep mode to conserve the batteries. For
details on how to switch to Deep Sleep mode,
refer to subsection 8.3.16 “Switching to Deep
Sleep Mode”.

<2. Handling Cautions> 2-2
IM 01C27H01-01EN
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) Wireless Communication
NOTE
The installation location of this transmitter must
meet the following conditions:
- Adjust the direction of the antenna to be
in the upright position regardless of the
orientation of this transmitter. See section 4
for adjusting the antenna.
- Install the transmitter at least 1.5m above the
groundoroor.
F0203.ai
1.5m or more
- Ensure that there are no obstacles such as
walls or pipes within a 30-cm radius of each
antenna.
- Conrmthateacheldwirelessequipment
compliant with ISA100.11a can see the
antenna of other devices which locate within
its own communication range. In the star
topology network, the visibility to the antenna
of gateway is a mandatory clause.
(b) 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.
(c) Ambient Atmosphere
Do not install the transmitter in a corrosive
atmosphere. If this cannot be avoided, there
must be adequate ventilation.
(d) 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.
(e) 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
2.8 “Installation of an Explosion-Protected
Transmitters.”
2.5 Pressure Connection
WARNING
• Neverloosentheprocessange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.
• Sincetheaccumulatedprocessuidmaybe
toxic or otherwise harmful, take appropriate
stepstopreventthecontactofsuchuids
with the skin or eyes and the inhalation
ofvaporsfromtheseuidsevenafter
dismounting the instrument from process line
for maintenance.
The following precautions must be observed
in order to safely operate the transmitter under
pressure.
(a) Make sure that there are no leaks in the impulse
piping.
(b) Never apply a pressure higher than the
speciedmaximumworkingpressure.

<2. Handling Cautions> 2-3
IM 01C27H01-01EN
2.6 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.
2.7 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) The procedure for conducting these tests is as
follows:
•InsulationResistanceTest
1) Remove the battery pack. See subsection 9.4.6
for details on how to remove it.
2) Short-circuit the battery connection terminals in
the terminal box.
3) Turn OFF the insulation tester. Then connect
the insulation tester plus (+) lead wire to the
shorted battery connection terminals and the
minus (–) leadwire to the grounding terminal.
4) 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.
5) 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 battery connection terminals. Leave
this resistor connected at least one second to
discharge any static potential. Do not touch the
terminals while it is discharging.
NOTE
When storing the instrument with a battery
pack, it is recommended to put the instrument in
Deep Sleep mode to conserve the batteries. For
details on how to switch to Deep Sleep mode,
refer to subsection 7.3.16 “Switching to Deep
Sleep Mode”.
•DielectricStrengthTest
1) Remove the battery pack. See subsection 9.4.6
for details on how to remove it.
2) Short-circuit the battery connection terminals in
the terminal box.
3) Turn OFF the dielectric strength tester. Then
connect the tester between the shorted battery
connection terminals and the grounding
terminal. Be sure to connect the grounding lead
of the dielectric strength tester to the ground
terminal.
4) Set the current limit on the dielectric strength
tester to 0.1 mA, then turn ON the power and
gradually increase the test voltage from ‘0’ to
thespeciedvoltage.
5)Whenthespeciedvoltageisreached,holdit
for one minute.
6) After completing this test, slowly decrease the
voltage to avoid any voltage surges.
NOTE
When storing the instrument with a battery
pack, it is recommended to put the instrument in
Deep Sleep mode to conserve the batteries. For
details on how to switch to Deep Sleep mode,
refer to subsection 7.3.16 “Switching to Deep
Sleep Mode”.

<2. Handling Cautions> 2-4
IM 01C27H01-01EN
2.8 Installation of an Explosion-
Protected Instrument
Ifacustomermakesarepairormodicationtoan
intrinsically safe instrument and the instrument is
not restored to its original condition, its intrinsically
safe 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. 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
The battery pack may be replaced in a
hazardous area. The battery pack has
surface resistivity greater than 1G ohm and
must be properly installed in the enclosure
of the transmitter. Care must be taken during
transportation to and from the point of installation
to prevent electrostatic charge build-up.
2.8.1 FM Approval
Caution for FM intrinsically safe type. (Following
contents refer “DOC. No. IFM037-A20”)
Note 1. Model EJX Series Differential, gauge
and absolute pressure transmitters with
optional code /FS17 are applicable for use
in hazardous locations.
• ApplicableStandard:Class3600,Class
3610, Class 3611, Class 3810, NEMA 250,
ANSI/ISA-60079-0, ANSI/ISA-60079-11
• 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 and Class III, Division 1, Class I, Zone 2,
Groups IIC, in Hazardous Locations.
• Enclosure:NEMA4X(Indoorsandoutdoors).
• TemperatureClass:T4
• Ambienttemperature:-50to70°C
Note 2. Installation
• Installationshouldbeinaccordancewith
ANSI/ISA-RP12.06.01 and the National
Electric Code (NFPA 70).
• Dust-tightconduitsealmustbeusedwhen
installed in a Class II, III, Group E, F and G
environments.
• Noteawarninglabelworded
“SUBSTITUTION OF COMPONENTS MAY
IMPAIR INTRINSIC SAFETY,” and “INSTALL
IN ACCORDANCE WITH DOC. NO.
IFM037-A20”.
[Installation Diagram]
F0204.ai
Transmitter
[Intrinsically Safe]
Class I, II, III, Division 1,
Groups A,B,C,D,E,F,G
Class I, Zone 0
in Hazardous (Classified)
Locations
AEx ia IIC
[Nonincendive]
Class I, II, Division 2,
Groups A,B,C,D,F,G
Class III, Division 1.
Class I, Zone 2, Group IIC,
in Hazardous (Classified)
Locations
Antenna
(*1)
Arrester
(*1, *2)
*1: These apparatus are simple apparatus.
*2: Arrester may not be connected.
Antenna Connector
Battery Pack
Hazardous Location
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 FM
Approvals approval.
Note 4. Battery Pack
USE ONLY BATTERY PACK YOKOGAWA
F9915MA OR F9915NS.
Note 5. Special Conditions for safe use
POTENTIAL ELECTROSTATIC CHARGING
HAZARD-SECURE DISTANCE OF 100MM
FROM ANTENNA.
DO NOT OPEN WHEN CL II, III, DIV 1,2
ATMOSPHERE IS PRESENT.

<2. Handling Cautions> 2-5
IM 01C27H01-01EN
2.8.2 CSACertication
Caution for CSA Intrinsically safe type. (Following
contents refer to “DOC No. ICS030”)
Note 1. Model EJX Series differential, gauge,
and absolute pressure transmitters with
optional code /CS17 are applicable for use
in hazardous locations
Certicate:2325443
• Applicablestandard:CAN/CSA-C22.2No.0,
CAN/CSA-C22.2 No.0.4, C22.2 No.25,
CAN/CSA-C22.2 No.94,
CAN/CSA-C22.2 No.157, C22.2 No.213,
CAN/CSA-C22.2 No.61010-1,
CAN/CSA- C22.2 No.60079-0,
CAN/CSA-E60079-11, IEC60529
• ExiaIICT4
• 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,Division2,
Groups A, B, C & D, Class II, Division2,
Groups F & G, Class III, Division1
• Enclosure:IP66/IP67andType4X
• TemperatureCode:T4
• AmbientTemperature:–50 to 70°C
• Max.ProcessTemp.:120°C
Note 2. Installation
• Installationshouldbeinaccordancewith
Canadian Electrical Code Part I and Local
Electrical Code.
• Donotalterdrawingwithoutauthorization
from CSA.
• Theinstrumentmodicationorparts
replacement by other than authorized
representative of Yokogawa Electric
Corporation is prohibited and will void
Canadian Standards Intrinsically safe and
nonincendiveCertication.
[Installation Diagram]
F0205.ai
Transmitter
[Intrinsically Safe]
Group IIC, Zone 0
Class I, II, III, Division 1,
Groups A,B,C,D,E,F,G
[Nonincendive]
Class I, II, Division 2,
Groups A,B,C,D,F,G
Class III, Division 1
Antenna
(*1)
Arrester
(*1, *2)
*1: These apparatus are simple apparatus.
*2: Arrester may not be connected.
Antenna Connector
Battery Pack
Hazardous Area
Note 3. Battery Pack
• UseonlyYOKOGAWAbatterypack
F9915MA or F9915NS .
Note 4. Special Conditions for safe use
• Potentialelectrostaticcharginghazard-
secure distance of 100mm from antenna.
2.8.3 ATEXCertication
(1) Technical Data
Caution for ATEX Intrinsically safe type.
Note 1. Model EJX Series pressure transmitters
with optional code /KS27 for potentially
explosive atmospheres:
• No.KEMA10ATEX0164X
• ApplicableStandard:
EN60079-0:2012+A11:2013
EN 60079-11:2012
• TypeofProtectionandMarkingcode:
Ex ia IIC T4 Ga
• Group:II
• Category:1G
• AmbientTemperature:–50°Cto70°C
• ProcessTemperature(Tp.):120°Cmax.
• Enclosure:IP66/IP67
Note 2. Installation
• Installationshouldbeinaccordancewith
local installation requirements. (Refer to the
Control Drawing)
[Control Drawing]
F0206.ai
Hazardous Area
*1: These apparatus are simple apparatus.
*2: Arrester may not be connected.
Transmitter
Battery Pack
Arrester
(*1, *2) Antenna (*1)
Antenna connector

<2. Handling Cautions> 2-6
IM 01C27H01-01EN
Note 3. Battery Pack
• UseonlyYOKOGAWAbatterypack
F9915MA or F9915NS.
Note 4. Special conditions for Safe Use
• IncasetheenclosureofthePressure
Transmitter is made of aluminum, 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.
• Forapplicationsinexplosiveatmospheres
caused by gases, vapors or mists and
where category 1 G apparatus is required,
electrostatic charges on the non-metallic
parts of the Pressure Transmitter shall be
avoided.
WARNING
Potential electrostatic charging hazard - secure
distance of 100mm from antenna.
(2) Operation
WARNING
Take care not to generate mechanical sparking
when access to the instrument and peripheral
devices in a hazardous location.
(3) 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.
(4) Name Plate
• NamePlate
: Refer to USER'S MANUAL.
Made in Japan
TOKYO 180-8750 JAPAN
MODEL
SUFFIX
SUPPLY
OUTPUT
MWP
mA DC
V DC
STYLE
CAL
RNG
NO.
F0207.ai
• Tagplateforintrinsicallysafetype
F0208.ai
KS27
No. KEMA 10ATEX0164 X
Ex ia IIC T4 Ga
ENCLOSURE: IP66/IP67
Tamb.: -50 TO 70°C
MAX PROCESS TEMP.: 120°C
POTENTIAL ELECTROSTATIC CHARGING HA ZARD - SECURE DISTANCE
OF 100MM FROM ANTENNA.
USE ONLY BATTERY PACK YOKOGAWA F9915MA OR F9915NS.
POTENTIAL ELECTROSTATIC CHARGING HA ZARD - SEE USER'S MANUAL.
WARNING
*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nalthreenumbers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:
91K819857 032
    ↑
The year 2010
*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. Handling Cautions> 2-7
IM 01C27H01-01EN
2.8.4 IECExCertication
Caution for IECEx Intrinsically safe type.
Note 1. Model EJX Series pressure transmitters
with optional code /SS27 for potentially
explosive atmospheres:
• No.IECExKEM10.0074X
• ApplicableStandard:
IEC 60079-0: 2011, IEC 60079-11:2011,
IEC 60079-26: 2006
• TypeofProtectionandMarkingcode:
Ex ia IIC T4 Ga
• AmbientTemperature:–50°Cto70°C
• ProcessTemperature(Tp.):120°Cmax.
• Enclosure:IP66/IP67
Note 2. Installation
• Installationshouldbeinaccordancewith
local installation requirements.
(Refer to the Control Drawing)
[Control Drawing]
F0209.ai
Hazardous Area
*1: These apparatus are simple apparatus.
*2: Arrester may not be connected.
Transmitter
Battery Pack
Arrester
(*1, *2) Antenna (*1)
Antenna connector
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 IECEx
IntrinsicallysafeCertication.
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.
Note 4. Battery Pack
• UseonlyYOKOGAWAbatterypack
F9915MA or F9915NS.
Note 5. Special conditions for Safe Use
• IncasetheenclosureofthePressure
Transmitter is made of aluminum, if it
is mounted in an area where the use of
apparatus of equipment protection level Ga
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.
• Forapplicationsinexplosiveatmospheres
caused by gases, vapors or mists and
mounted in an area where the use of
apparatus of equipment protection level Ga
is required, electrostatic charges on the non-
metallic parts of the Pressure Transmitter
shall be avoided.
WARNING
• Potentialelectrostaticcharginghazard-
secure distance of 100mm from antenna.
• Takecarenottogeneratemechanical
sparking when access to the instrument and
peripheral devices in a hazardous location.
2.9 EMC Conformity Standards
EN61326-1 Class A, Table 2 (For use in industrial
locations), EN61326-2-3
CAUTION
This instrument is a Class A product, and it is
designed for use in the industrial environment.
Please use this instrument in the industrial
environment only.
2.10 Pressure Equipment
Directive (PED)
(1) General
EJX Series pressure transmitters are
categorized as piping under the pressure
accessories section of directive 2014/68/EU,
which corresponds to Article 4, Paragraph 3 of
PED, denoted as Sound Engineering Practice
(SEP).

<2. Handling Cautions> 2-8
IM 01C27H01-01EN
(2) Technical Data
Article 4, Paragraph 3 of PED, denoted as
Sound Engineering Practice (SEP).
(3) Operation
CAUTION
• Thetemperatureandpressureofuidshould
be maintained at levels that are consistent
with normal operating conditions.
• Theambienttemperatureshouldbe
maintained at a level that is consistent with
normal operating conditions.
• Pleasetakecaretopreventwaterhammer
and the like from inducing excessive
pressures in pipes and valves. If phenomena
are likely, install a safety valve or take
some other appropriate measure to prevent
pressure from exceeding PS.
• Takeappropriatemeasuresatthedeviceor
system level to protect transmitters if they
are to be operated near an external heat
source.
2.11 Low Voltage Directive
Applicable standard:
EN61010-1, EN61010-2-030
(1) Pollution Degree 2
"Pollution degree" describes the degree to
which a solid, liquid, or gas which deteriorates
dielectric strength or surface resistivity is
adhering. " 2 " applies to normal indoor
atmosphere. Normally, only non-conductive
pollution occurs. Occasionally, however,
temporary conductivity caused by condensation
must be expected.
(2) Installation Category I
(Anticipated transient overvoltage 330 V)
"Overvoltage category (Installation category)"
describesanumberwhichdenesatransient
overvoltage condition. It implies the regulation
for impulse withstand voltage. " I " applies to
electrical equipment which is supplied from the
circuit when appropriate transient overvoltage
control means (interfaces) are provided.
2.12 Regulatory Compliance
for Radio and
Telecommunication
Pleaseconrmthatainstallationregionfullsa
standards, require additional regulatory information
and approvals, contact to Yokogawa Electric
Corporation.
2.12.1 Radio and Telecommunications
Terminal Equipment Directive
(R&TTE)
We, Yokogawa Electric Corporation hereby declare
that this equipment, model EJX-L series is in
compliance with the essential requirements and
other relevant provisions of Directive 1999/5/EC.
The CE declaration of conformity for R&TTE for this
product can be found at http://www.yokogawa.com/
d/
2.12.2 FCC compliance
This equipment contains transmitter module FCC
ID: SGJ-WFC001.
This device complies with Part 15 of FCC Rules.
Operation is subject to the following two conditions:
(1) this device may not cause interference, and (2)
this device must accept any interference, including
interference that may cause undesired operation of
this device.
Co-located:
This transmitter must not be co-located or operated
in conjunction with any other antenna or transmitter.
FCC WARNING:
Changesormodicationsnotexpresslyapproved
by the party responsible for compliance could void
the user’s authority to operate the equipment.

<2. Handling Cautions> 2-9
IM 01C27H01-01EN
NOTE
This equipment has been tested and found
to comply with the limits for a Class A digital
device, pursuant to part 15 of the FCC Rules.
These limits are designed to provide reasonable
protection against harmful interference when
the equipment is operated in a commercial
environment.
This equipment generates, uses, and can radiate
radio frequency energy and, if not installed
and used in accordance with the instruction
manual,may cause harmful interference to radio
communications. Operation of this equipment
in a residential area is likely to cause harmful
interference in which case the user will be
required to correct the interference at his own
expense.
2.12.3 Industry Canada (IC) compliance
This equipment contains transmitter module IC:
8999A-WIC001.
This Class A digital apparatus complies with
Canadian ICES-003.
This device complies with Industry Canada license-
exempt RSS standard(s). Operation is subject to
the following two conditions: (1) this device may not
cause interference, and (2) this device must accept
any interference, including interference that may
cause undesired, operation of the device.
Under Industry Canada regulations, this radio
transmitter may only operate using an antenna of a
type and maximum (or lesser) gain approved for the
transmitter by Industry Canada. To reduce potential
radio interference to other users, the antenna type
and its gain should be so chosen that the equivalent
isotropically radiated power (e.i.r.p.) is not more
than that necessary for successful communication.
This radio transmitter IC Number 8999A-WIC001
has been approved by Industry Canada to operate
with the antenna types listed below with the
maximum permissible gain and required antenna
impedance for each antenna type indicated.
Antenna types not included in this list, having a gain
greater than the maximum gain indicated for that
type, are strictly prohibited for use with this device.
Antenna type: Gain:
COLLINEAR 9dBi,50Ω
Sleeve 2.14dBi,50Ω
French:
Cet appareil numérique de la classe A est conforme
à la norme NMB-003 du Canada.
Le présent appareil est conforme aux CNR
d’Industrie Canada applicables aux appareils
radio exempts de licence. L’exploitation est
autorisée aux deux conditions suivantes : (1)
l’appareil ne doit pas produire de brouillage, et (2)
l’utilisateur de l’appareil doit accepter tout brouillage
radioélectrique subi, même si le brouillage est
susceptible d’en compromettre le fonctionnement.
Conformément à la réglementation d’Industrie
Canada, le présent émetteur radio peut fonctionner
avec une antenne d’un type et d’un gain maximal
(ou inférieur) approuvé pour l’émetteur par Industrie
Canada. Dans le but de réduire les risques de
brouillage radioélectrique à l’intention des autres
utilisateurs, il faut choisir le type d’antenne et son
gain de sorte que la puissance isotrope rayonnée
équivalente (p.i.r.e.) ne dépasse pas l’intensité
nécessaire à l’établissement d’une communication
satisfaisante.
Le présent émetteur radio IC Number
8999A-WIC001 a été approuvé par Industrie
Canada pour fonctionner avec les types d’antenne
énumérés ci-dessous et ayant un gain admissible
maximal et l’impédance requise pour chaque type
d’antenne. Les types d’antenne non inclus dans
cette liste, ou dont le gain est supérieur au gain
maximal indiqué, sont strictement interdits pour
l’exploitation de l’émetteur.
Antenne type: Gain:
COLLINEAR 9dBi,50Ω
Sleeve 2.14dBi,50Ω
2.13 RoHS
Applicable standard: EN50581
(For the products delivered after July 1st, 2017)

<3. Component Names> 3-1
IM 01C27H01-01EN
3. Component Names
EJX118B
* See below
for details
EJX438B
F0301.ai
Transmitter
section *
Diaphragm seal
with flushing connection ring
Flushing
connection ring
Vent/drain plug
Cover flange
Diaphragm seal
(high pressure side)
Diaphragm seal
(low pressure side)
Capillary tube
Cover flange
Pressure-
detector section
Diaphragm seal
Pressure-
detector section
Transmitter
section *
* See below
for details
Figure 3.1 Component Names (External View of Flush type)
Pressure-detector section
Antenna
F0302.ai
YES (Note 2)
(Write disabled)
NO
(Write enabled)
Zero-adjustment screw
Ground terminal
RF assembly
CPU assembly Cover flange
Bolt
Transmitter section
Amplifier cover
Mounting screw
Integral indicator
Hardware write protection switch (WR)
Write Protection
Write Protection
Switch Position
(Note 1) H
L
ED
H
L
ED
Slide switch E WRD
Not in use
Write protection
switch
Note1: WriteProtectionissetbyslidingthehardwriteprotectionswitch(WR)showningure.Thehardwarewriteprotectionswitchis
set to the E side (Write enable) for delivery. Set an unused switch to H side.
Note 2: When the switch is D side (write protection setting), provisioning is acceptable. For details of provisioning, refer to section 7.4
“Connecting to Field Wireless Network”.
Figure 3.2 Component Names (Details of Transmitter section)
Table 3.1 Display Symbol
Display Symbol Meaning of Display Symbol
Display mode is ‘square root’. (Display is not lit when ‘linear’ mode.)
▲The output signal being zero-adjusted is increasing.
▼The output signal being zero-adjusted is decreasing.
Write protect function is enabled.