REVISION RECORD .................................................................................................
When using the EJX in a Safety Instrumented Systems(SIS) application,
refer to Appendix A in either IM 01C25T01-01E for the HART protocol or
IM 01C25T03-01E for the BRAIN protocol.
ii
IM 01C25C01-01E
1.INTRODUCTION
1. INTRODUCTION
Thank you for purchasing the DPharp EJX Differential
Pressure transmitter.
Your EJX Pressure Transmitter was precisely calibrated at the factory before shipment. To ensure both
safety and efficiency, please read this manual carefully
before you operate the instrument.
NOTE
This manual describes the hardware configurations of EJX series transmitters. For information
on the software configuration and operation,
please refer to either IM 01C25T03-01E for the
EJX series BRAIN communication type or
IM 01C25T01-01E for the EJX series HART
communication type.
For FOUNDATION Fieldbus protocol type,
please refer to IM 01C25T02-01E.
To ensure correct use of this instrument, read
both the hardware and software manuals thoroughly before use.
WARNING
When using the EJX in a Safety Instrumented
Systems (SIS) application, refer to Appendix A in
either IM 01C25T01-01E 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.
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 fitness 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 office.
• The specifications covered by this manual are
limited to those for the standard type under the
specified model number break-down and do not
cover custom-made instruments.
• Please note that changes in the specifications,
construction, or component parts of the instrument
may not immediately be reflected in this manual at
the time of change, provided that postponement of
revisions will not cause difficulty to the user from a
functional or performance standpoint.
• Yokogawa assumes no responsibility 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.
1-1
IM 01C25C01-01E
1. INTRODUCTION
• The following safety symbols are used in this
manual:
WARNING
Indicates a potentially hazardous situation which,
if not avoided,
injury.
could
result in death or serious
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.
.
1.1Safe 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 fluids.
•When draining condensate from the pressure
detector section, take appropriate precautions to
prevent the inhalation of harmful vapors and the
contact of toxic process fluids with the skin or eyes.
NOTE
Draws attention to information essential for
understanding the operation and features.
Direct current
• When removing the instrument from a hazardous
process, avoid contact with the fluid 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 confirm
that there is no current flowing through the cables
and that the power supply to the instrument is
switched off.
(c) Operation
•Wait 10 min. after the power is turned off, before
opening the covers.
1-2
IM 01C25C01-01E
1. INTRODUCTION
(d) Maintenance
• Please carry out only the maintenance procedures
described in this manual. If you require further
assistance, please contact the nearest Yokogawa
office.
•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
first 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) Modification
• Yokogawa will not be liable for malfunctions or
damage resulting from any modification made to this
instrument by the customer.
1.2Warranty
•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 office.
• 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 specification 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 fixing 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 specifications.
- Use of the product in question in a location not
conforming to the standards specified by
Yokogawa, or due to improper maintenance of the
installation location.
- Failure or damage due to modification 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 fires, earthquakes,
storms/floods, thunder/lightening, or other natural
disasters, or disturbances, riots, warfare, or
radioactive contamination.
1-3
IM 01C25C01-01E
1. INTRODUCTION
1.3ATEX Documentation
This is only applicable to the countries in European
Union.
GB
All instruction manuals for ATEX Ex related products
are available in English, German and French. Should
you require Ex related instructions in your local
language, you are to contact your nearest Yokogawa
office or representative.
DK
Alle brugervejledninger for produkter relateret til
ATEX Ex er tilgængelige på engelsk, tysk og fransk.
Skulle De ønske yderligere oplysninger om håndtering
af Ex produkter på eget sprog, kan De rette
henvendelse herom til den nærmeste Yokogawa
afdeling eller forhandler.
I
Tutti i manuali operativi di prodotti ATEX
contrassegnati con Ex sono disponibili in inglese,
tedesco e francese. Se si desidera ricevere i manuali
operativi di prodotti Ex in lingua locale, mettersi in
contatto con l’ufficio Yokogawa più vicino o con un
rappresentante.
E
Todos los manuales de instrucciones para los productos
antiexplosivos de ATEX están disponibles en inglés,
alemán y francés. Si desea solicitar las instrucciones de
estos artículos antiexplosivos en su idioma local,
deberá ponerse en contacto con la oficina o el
representante de Yokogawa más cercano.
NL
SF
Kaikkien ATEX Ex -tyyppisten tuotteiden käyttöhjeet
ovat saatavilla englannin-, saksan- ja ranskankielisinä.
Mikäli tarvitsette Ex -tyyppisten tuotteiden ohjeita
omalla paikallisella kielellännne, ottakaa yhteyttä
lähimpään Yokogawa-toimistoon tai -edustajaan.
P
Todos os manuais de instruções referentes aos produtos
Ex da ATEX estão disponíveis em Inglês, Alemão e
Francês. Se necessitar de instruções na sua língua
relacionadas com produtos Ex, deverá entrar em
contacto com a delegação mais próxima ou com um
representante da Yokogawa.
F
Tous les manuels d’instruction des produits ATEX Ex
sont disponibles en langue anglaise, allemande et
française. Si vous nécessitez des instructions relatives
aux produits Ex dans votre langue, veuillez bien
contacter votre représentant Yokogawa le plus proche.
D
Alle Betriebsanleitungen für ATEX Ex bezogene
Produkte stehen in den Sprachen Englisch, Deutsch
und Französisch zur Verfügung. Sollten Sie die
Betriebsanleitungen für Ex-Produkte in Ihrer
Landessprache benötigen, setzen Sie sich bitte mit
Ihrem örtlichen Yokogawa-Vertreter in Verbindung.
S
Alla instruktionsböcker för ATEX Ex (explosionssäkra)
produkter är tillgängliga på engelska, tyska och
franska. Om Ni behöver instruktioner för dessa
explosionssäkra produkter på annat språk, skall Ni
kontakta närmaste Yokogawakontor eller representant.
Alle handleidingen voor producten die te maken
hebben met ATEX explosiebeveiliging (Ex) zijn
verkrijgbaar in het Engels, Duits en Frans. Neem,
indien u aanwijzingen op het gebied van
explosiebeveiliging nodig hebt in uw eigen taal, contact
op met de dichtstbijzijnde vestiging van Yokogawa of
met een vertegenwoordiger.
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 figure 2.1 is included. If the transmitter is
ordered without 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.
Process connector
Bolt
Figure 2.1 Transmitter Mounting Hardware
Process connector gasket
F0201.EPS
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
Relative humidity:
0% to 100% R.H. (at 40°C)
Preferred temperature and humidity:
approx. 25°C and 65% R.H.
2.1 Model and Specifications
Check
The model name and specifications are written on the
name plate attached to the case.
F0202.EPS
Figure 2.2 Name Plate
(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 flanges and the
diaphragm surface of high pressure-detector section,
so that there is no process fluid remaining inside or
on it. Before placing it in storage, also make sure
that the pressure-detector is securely connected to
the transmitter section.
2-1
IM 01C25C01-01E
2. HANDLING CAUTIONS
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 significant 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 transmitter is certified for
installation in a hazardous area containing specific
gas types. See subsection 2.9 “Installation of an
Explosion-Protected Transmitters.”
2.5 Pressure Connection
2.6 Waterproofing of Cable
Conduit Connections
Apply a non-hardening sealant to the threads to
waterproof the transmitter cable conduit connections.
(See figure 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
first observed.
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:
WARNING
• Never loosen the process connector and flange
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 fluid.
•When draining toxic process fluids that have
condensed inside the pressure detector, take
appropriate steps to prevent the contact of such
fluids with the skin or eyes and the inhalation of
vapors from these fluids.
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 firmly.
(b) Make sure that there are no leaks in the impulse
piping.
(C) Never apply a pressure higher than the specified
maximum working pressure.
(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.
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.
2-2
IM 01C25C01-01E
3) Turn ON the insulation tester power and measure
the insulation resistance. The voltage should be
applied as briefly 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 shortcircuiting 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.
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 specified
voltage.
4) When the specified 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.
If a customer makes a repair or modification 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 modification to an instrument.
2. HANDLING CAUTIONS
CAUTION
This instrument has been tested and certified 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.
WARNING
The range setting switch must not be used in a
hazardous area.
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. Model EJX Series Differential, gauge and
absolute pressure transmitters with
optional code /FS1 are applicable for use
in hazardous locations.
• 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.
• Outdoor hazardous locations, NEMA 4X.
• Temperature Class: T4
• Ambient temperature: –60 to 60°C
2-3
IM 01C25C01-01E
2. HANDLING CAUTIONS
Note 2. Entity Parameters
• Intrinsically Safe Apparatus Parameters
[Groups A, B, C, D, E, F and G]
Vmax = 30 VCi = 6 nF
Imax = 200 mALi = 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 (Classified) Locations” and the National
Electric Code (ANSI/NFPA 70).
• The configuration of associated apparatus must be
FMRC Approved.
• Dust-tight conduit seal must be used when installed
in a Class II, III, Group E, F or G environment.
• 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”
Note 4. Maintenance and Repair
• The instrument modification or parts replacement by
other than authorized representative of Yokogawa
Electric Corporation is prohibited and will void
Factory Mutual Intrinsically safe and Nonincendive
Approval.
[Intrinsically Safe]
Hazardous LocationNonhazardous Location
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
EJX Series Pressure
TransmittersSafety Barrier
+
Supply
Hazardous LocationNonhazardous Location
Class I, II, Division 2,
Groups A, B, C, D, F, G
Class III, Division 1.
Class 1, Zone 2, Group IIC,
in Hazardous (Classified)
Locations
EJX Series Pressure
Transmitters
Supply
–
[Nonincendive]
+
–
+
+
–
–
Not Use
Safety Barrier
General
Purpose
Equipment
F0203-1.EPS
General
Purpose
Equipment
F0203-2.EPS
b. FM Explosionproof Type
Caution for FM explosionproof type.
Note 1. Model EJX Series differential, gauge,
and absolute pressure transmitters with
optional code /FF1 are applicable for
use in hazardous locations.
• 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 rating: NEMA 4X.
• Temperature Class: T6
• Ambient Temperature: –40 to 60°C
• Supply Voltage: 42 V dc max.
• Output signal: 4 to 20 mA
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.”
Note 3. Operation
• Keep the “WARNING” nameplate attached to the
transmitter.
+
–
+
–
2-4
IM 01C25C01-01E
2. HANDLING CAUTIONS
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 modification or parts replacement
by other than authorized representative of
Yokogawa Electric Corporation is prohibited and
will void Factory Mutual Explosionproof Approval.
c. FM Intrinsically Safe Type/FM
Explosionproof Type
Model EJX Series pressure transmitters with
optional code /FU1 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 Certification
a. CSA Intrinsically Safe Type
Caution for CSA Intrinsically safe type. (Following
contents refer to “DOC No. ICS013-A13”)
Note 1. Model EJX Series differential, gauge, and
absolute pressure transmitters with
optional code /CS1 are applicable for use
in hazardous locations
• 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 certified.
• Input voltage of the safet 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 modification 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 Certification.
2-5
IM 01C25C01-01E
2. HANDLING CAUTIONS
[Intrinsically Safe]
Hazardous LocationNonhazardous Location
Group IIC, Zone 0
Class I, II, III, Division 1,
Groups A, B, C, D, E, F, G
EJX Series Pressure
Transmitters
+
Supply
–
Safety Barrier
+
+
–
–
General
Purpose
Equipment
+
–
F0204-1.EPS
[Nonincendive]
Hazardous LocationNonhazardous Location
Group IIC, Zone 2
Class I, II, Division 2,
Groups A, B, C, D, E, F, G
Class III, Division 1.
EJX Series Pressure
EJX Series Pressure
Transmitters
Transmitters
+
Supply
–
CSA Certified
Equipment
([nL] or
nonincendive)
+
–
Not Use
Safety Barrier
F0204-2.EPS
b. CSA Explosionproof Type
Caution for CSA explosionproof type.
Note 1. Model EJX Series differential, gauge, and
absolute pressure transmitters with
optional code /CF1 are applicable for use
in hazardous locations:
• Dustignition-proof for Class II/III, Groups E, F and
G.
• Enclosure: TYPE 4X
• Temperature Code: T6...T4
[For CSA E60079]
• Applicable Standard: CAN/CSA E60079-0,
CAN/CSA E60079-1
• Flameproof for Zone 1, Ex d IIC T6...T4
• Enclosure: IP66 and 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 70°C (T6)
• Supply Voltage: 42 V dc max.
• Output Signal: 4 to 20 mA dc
Note 2. Wiring
[For CSA C22.2]
• 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 figure.
• 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
Locations
Non-hazardous
Location
Equipment
42 V DC Max.
4 to 20 mA DC
Signal
Non-Hazardous
Locations
Non-hazardous
Location
Equipment
42 V DC Max.
4 to 20 mA DC
Signal
Hazardous Locations Division 1
50 cm Max.
Sealing Fitting
Conduit
EJX Series
Hazardous Locations Division 2
Sealing Fitting
EJX Series
S
U
P
P
L
Y
S
U
P
P
L
Y
F0205-1.EPS
[For CSA E60079]
• All wiring shall comply with local installation
requirements and local electrical code.
• In hazardous locations, the cable entry devices shall
be of a certified flameproof type, suitable for the
conditions of use and correctly installed.
• Unused apertures shall be closed with suitable
flameproof certified blanking elements. (The plug
attached is flameproof certified.)
Note 3. Operation
• WARNING:
AFTER DE-ENERGIZING, DELAY 5 MINUTES
BEFORE OPENING.
APRÉS POWER-OFF, ATTENDRE 5 MINUTES
AVANT D'OUVRIR.
SE
L
PU
CK
CHE
RM
A
L
A
E
S
UL
P
K
C
E
H
C
M
R
A
L
A
2-6
IM 01C25C01-01E
2. HANDLING CAUTIONS
• 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 modification 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 Certification.
c. CSA Intrinsically Safe Type/CSA
Explosionproof Type
Model EJX Series pressure transmitters with
optional code /CU1 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.
• Process Temperature (Tp.): 120°C max.
• Maximum Surface Temperature for dust-proof:
T85°C (Tamb.: –40 to 60°C, Tp.: 80°C)
T100°C (Tamb.: –40 to 60°C, Tp.: 100°C)
T120°C (Tamb.: –40 to 60°C, Tp.: 120°C)
• Enclosure: IP66 and IP67
Note 2. Electrical Data
• In type of explosion protection intrinsic safety EEx
ia IIC only for connection to a certified intrinsically
safe circuit with following maximum values:
Ui = 30 V
Ii = 200 mA
Pi = 0.9 W
Effective internal capacitance; Ci = 10 nF
Effective internal inductance; Li = 0 mH
Note 3. Installation
• All wiring shall comply with local installation
requirements. (Refer to the installation diagram)
Note 4. Maintenance and Repair
• The instrument modification or parts replacement
by other than authorized representative of
Yokogawa Electric Corporation is prohibited and
will void KEMA Intrinsically safe Certification.
Note 5. Special Conditions for Safe Use
• In the case where the enclosure of the Pressure
Transmitter is made of aluminium, if it is mounted
in an area where the use of category 1 G apparatus
is required, it must be installed such, that, even in
the event of rare incidents, ignition sources due to
impact and friction sparks are excluded.
[Installation Diagram]
Hazardous Location
Nonhazardous Location
2.9.3 CENELEC ATEX (KEMA)
Certification
(1) Technical Data
a. CENELEC ATEX (KEMA) Intrinsically Safe
Type
Caution for CENELEC ATEX (KEMA) Intrinsically safe type.
Note 1. Model EJX Series differential, gauge, and
absolute pressure transmitters with
optional code /KS2 for potentially explosive atmospheres:
• No. KEMA 03ATEX1544 X
• Applicable Standard: EN 50014, EN 50020,
EN 50284, EN 50281-1-1
• Type of Protection and Marking code:
EEx ia IIC T4
• Group: II
• Category: 1G, 1D
• Ambient Temperature for gas-proof: –50 to 60°C
Transmitter
Supply
+
–
*1: In any safety barriers used the output current must be limited
by a resistor “R” such that Imaxout-Uz/R.
+
Safety Barrier
–
b. CENELEC ATEX (KEMA) Flameproof Type
Caution for CENELEC ATEX (KEMA) flameproof
type.
Note 1. Model EJX Series differential, gauge, and
absolute pressure transmitters with
optional code /KF2 for potentially explosive atmospheres:
• No. KEMA 03ATEX2570
• Applicable Standard: EN 50014, EN 50018, EN
50281-1-1
2-7
IM 01C25C01-01E
*1
F0204.EPS
2. HANDLING CAUTIONS
• Type of Protection and Marking Code: EEx d IIC
T6...T4
• Group: II
• Category: 2G, 1D
• Temperature Class: T6, T5, and T4
• Enclosure: IP66 and IP67
• Ambient Temperature for gas-proof:
–50 to 70°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:
T80°C (Tamb.: –40 to 40°C, Tp.: 80°C)
T100°C (Tamb.: –40 to 60°C, Tp.: 100°C)
T120°C (Tamb.: –40 to 80°C, Tp.: 120°C)
Note 2. Electrical Data
• Supply voltage: 42 V dc max.
• Output signal: 4 to 20 mA
Note 3. Installation
• All wiring shall comply with local installation
requirements.
• The cable entry devices shall be of a certified
flameproof type, suitable for the conditions of use.
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 CABLES90°C.
• Take care not to generate mechanical sparking
when accessing to the instrument and peripheral
devices in a hazardous location.
Note 5. Maintenance and Repair
• The instrument modification or part replacement by
other than an authorized representative of
Yokogawa Electric Corporation is prohibited and
will void KEMA Flameproof Certification.
The installation must be in accordance with the
description about the type of protection in this
user’s 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.
• Type of Protection and Marking Code:
EEx nL IIC T4
• Temperature Class: T4
• Enclosure: IP66 and IP67
• Process Temperature: 120°C max.
• Ambient Temperature: –50 to 60°C
Note 1. Electrical Data
Ui = 30 V
Effective internal capacitance; Ci = 10 nF
Effective internal inductance; Li = 0 mH
Note 2. Installation
• All wiring shall comply with local installation
requirements. (refer to the installation diagram)
Note 3. Maintenance and Repair
• The instrument modification or parts replacement
by other than authorized representative of
Yokogawa Electric Corporation is prohibited and
will void Type of Protection “n”.
[Installation Diagram]
Hazardous Location
(Zone 2 only)
Transmitter
Supply
+
–
Nonhazardous Location
[EEx nL]
+
Power Supply
–
c. CENELEC ATEX (KEMA) Intrinsically Safe
Type/CENELEC ATEX (KEMA) Flameproof
Type/CENELEC ATEX Type n
Model EJX Series differential, gauge and
absolute pressure transmitters with optional
code /KU2 can be selected the type of protection CENELEC ATEX (KEMA) Intrinsically Safe,
Flameproof or CENELEC ATEX Type n 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.
Ratings of the Power Supply as follows;
Maximum Voltage: 30 V
CENELEC ATEX Type of Protection “Dust”
• Type of Protection and Marking Code: II 1D
• Maximum Surface Temperature:
T80°C (Tamb.: –40 to 40°C, Tp.: 80°C)
T100°C (Tamb.: –40 to 60°C, Tp.: 100°C)
T120°C (Tamb.: –40 to 80°C, Tp.: 120°C)
2-8
IM 01C25C01-01E
F0205.EPS
2. HANDLING CAUTIONS
WARNING
To satisfy IP66 or IP67, apply waterproof glands
to the electrical connection port.
(2) Electrical Connection
A mark indicating the electrical connection type is
stamped near the electrical connection port. These
marks are as follows.
Location of the mark
F0206.EPS
(3) Installation
WARNING
•All wiring shall comply with local installation
requirements and the local electrical code.
(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
(6) Name Plate
Name plate
Tag plate for flameproof type
No. KEMA 03ATEX2570
EEx d IIC T6...T4 IP66 andIP67
TEMP. CLASS T6 T5 T4
MAX PROCESS TEMP.(Tp.) 85 100 120 °C
Tamb. -50 to 70 80 75 °C
T80°C(Tamb.:40°C, Tp.:80°C),T100°C(Tamb.:60°C, Tp.:100°C),
T120°C(Tamb.:80°C, Tp.:120°C) Min.Tamb.:-40°C(for DUST)
D
WARNING
AFTER DE-ENERGIZING, DELAY 5 MINUTES
BEFORE OPENING.
WHEN THE AMBIENT TEMP. 65°C,
USE THE HEAT-RESISTING CABLES 90°C
Tag plate for intrinsically safe type
D
Tag plate for type n protection
No. KEMA 03ATEX1544 X
EEx ia IIC T4
IP66 and IP67
Tamb. -50 to 60°C MIN. Tamb.:-40°C(for DUST)
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=10nF, Li=0
EEx nLIIC T4
IP66 and IP67
Tamb. -50 to 60°C
MAX. PROCESS TEMP.(Tp.) 120°C
Ui=30V, Ci=10nF, Li=0
F0207.EPS
MODEL: Specified model code.
STYLE: Style code.
SUFFIX: Specified suffix code.
SUPPLY: Supply voltage.
OUTPUT: Output signal.
MWP: Maximum working pressure.
CAL RNG: Specified calibration range.
NO.: Serial number and year of production*1.
TOKYO 180-8750 JAPAN:
The manufacturer name and the address*2.
*1: The first digit in the final three numbers of the
serial number appearing after “NO.” on the name
plate indicates the year of production. The following is an example of a serial number for a product
that was produced in 2004:
12A819857 432
WARNING
The instrument modification or part replacement
by other than an authorized Representative of
Yokogawa Electric Corporation is prohibited and
will void the certification.
The year 2004
*2: “180-8750” is the postal code for the following
address.
2-9-32 Nakacho, Musashino-shi, Tokyo Japan
2-9
IM 01C25C01-01E
2. HANDLING CAUTIONS
2.9.4 IECEx Certification
Model EJX Series pressure transmitters with
optional code /SU2 can be selected the type of
protection (IECEx Intrinsically Safe/type n or
flameproof) 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.
a. IECEx Intrinsically Safe Type / type n
Caution for IECEx Intrinsically safe and type n.
Note 1. Model EJX Series differential, gauge, and
absolute pressure transmitters with
optional code /SU2 are applicable for use
in hazardous locations
• 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" 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.
• The safety barrier must be IECEx certified.
• Input voltage of the safety barrier must be less
than 250 Vrms/Vdc.
• The instrument modification or parts replacement
by other than authorized representative of
Yokogawa Electric Corporation and will void
IECEx Intrinsically safe and type n certification.
[Intrinsically Safe]
Hazardous LocationNonhazardous Location
Group IIC, Zone 0
EJX Series Pressure
Transmitters
+
Supply
Hazardous LocationNonhazardous Location
Group IIC, Zone 2
EJX Series Pressure
EJX Series Pressure
Transmitters
Transmitters
Supply
–
[type n]
+
–
IECEx certified
Safety Barrier
+
–
Not Use
Safety Barrier
+
–
General
Purpose
Equipment
+
–
F0213-1.EPS
IECEx Certified
Equipment [nL]
+
–
F0213-2.EPS
b. IECEx Flameproof Type
Caution for IECEx flameproof type.
Note 1. Model EJX Series differential, gauge, and
absolute pressure transmitters with
optional code /SF2 and /SU2 are applicable for use in hazardous locations:
• No. IECEx CSA 05.0002
• Applicable Standard: IEC60079-0:2000,
IEC60079-1:2001
• Flameproof for Zone 1, Ex d IIC T6...T4
• Enclosure: IP66 and 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 70°C (T6)
• Supply Voltage: 42 V dc max.
• Output Signal: 4 to 20 mA dc
Note 2. Wiring
• In hazardous locations, the cable entry devices shall
be of a certified flameproof type, suitable for the
conditions of use and correctly installed.
• Unused apertures shall be closed with suitable
flameproof certified blanking elements.
2-10
IM 01C25C01-01E
2. HANDLING CAUTIONS
Note 3. Operation
• WARNING:
AFTER DE-ENERGIZING, DELAY 5 MINUTES
BEFORE OPENING.
• WARNING:
WHEN AMBIENT TEMPERATURE ≥ 65°C,
USE THE HEAT-RESISTING CABLES ≥ 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 modification or parts replacement
by other than authorized representative of
Yokogawa Electric Corporation is prohibited and
will void IECEx Certification.
2.10 EMC Conformity Standards
EN61326, AS/NZS CISPR11
CAUTION
To meet EMC regulations, Yokogawa recommends that customers run signal wiring through
metal conduits or use shielded twisted-pair
cabling when installing EJX series transmitters in
a plant.
2.11 Pressure Equipment
Directive (PED)
(1) General
• EJX series pressure transmitters are categorized as
pressure accessories under the vessel section of
directive 97/23/EC, which corresponds to Article 3,
Paragraph 3 of PED, denoted as Sound Engineering
Practice (SEP).
(2) Technical Data
Article 3, Paragraph 3 of PED, denoted as Sound
Engineering Practice (SEP).
(3) Operation
CAUTION
• The temperature and pressure of fluid 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.
2.12 Low Voltage Directive
Applicable standard : EN61010-1
(1) Pollution Degree 2
"Pollution degree" describes the degree to which a
soild, 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
condenstaion must be expected.
(2) Installation Category I
"Overvoltage category(Installation category)"
describes a number which defines a transient
overvoltage condition. It implies the regulattion for
impulse withstand voltage. " I " applies to electrical
equipment which is supplied from the circuit when
appropriate transient overvoltage control means
(interfaces) are provided.
2-11
IM 01C25C01-01E
3.COMPONENT NAMES
ED
ED
3. COMPONENT NAMES
Integral
indicator
Mounting screw
Amplifier Cover
(Note 1)
Slide switch
(Note 2)
Range-setting
(Note 1)
switch
(See Subsection 7.6)
Transmitter section
External indicator
conduit connection
CPU assembly
Burnout direction switch
BO HL
WR E
Write protection switch
D
(Note 1)
Cover flange
Process connector
(Note 1)
Bolt
Conduit
connection
Zero-adjustment screw
Process connection
(low pressure side)
Burnout direction switch (BO)Hardware write protection switch (WR)
Burnout Direction
Switch Position
Burnout Direction
(Note 2)
HL
HIGHLOW
HL
Write Protection
Switch Position
Write Protection
(Note 2)
HL
E
NO
(Write enabled)
HL
ED
D
YES
(Write disabled)
F0301.EPS
Note 1: See subsection 9.2, “Model and Suffix Codes,” for details.
Note 2: Set the switches as shown in the figure above to set the burn-out direction and write protection. The Burnout switch is set to
the H side for delivery (unless option code /C1 or /C2 is specified in the order), and the hardware write protection switch is set
to E side.
The setting of the switches can be confirmed via communication. An external zero adjustment screw can only be disabled by
communication. To disable the screw, set a parameter before activating the hardware write pretect function.See each
communication manual for details.
Figure 3.1 Component Names
Table 3.1 Display Symbol
Display SymbolMeaning of Display Symbol
The output signal being zero-adjusted is increasing.
The output signal being zero-adjusted is decreasing.
Write protect function is enabled.
T0301.EPS
3-1
IM 01C25C01-01E
4.INSTALLATION
4. INSTALLATION
4.1 Precautions
Before installing the transmitter, read the cautionary
notes in Section 2.4, “Selecting the Installation
Location.” For additional information on the ambient
conditions allowed at the installation location, refer to
Subsection 9.1 “Standard Specifications.”
IMPORTANT
• When welding piping during construction, take
care not to allow welding currents to flow
through the transmitter.
• Do not step on this instrument after installation.
• Never loosen the four bolts securing the cover
flanges (Refer to figure 3.1.) If the seal liquid
leaks, the transmitter cannot be used.
4.2 Mounting
The transmitter is mounted on a process using its highpressure side flange as shown in Figure 4.1. The
mating flange, gasket, stud bolts and nuts are to be
procured by the customer.
IMPORTANT
Please use a gasket with an inside diameter (ød)
that is greater than the diameter of the diaphragm seal. If a gasket with a smaller inside
diameter is used, the diaphragm may not function correctly.
(Refer to Subsection 9.4 ‘Dimen-
sions’)
4.3 Rotating T ransmitter Section
The transmitter section can be rotated in either direction to any desired position. Note that there is a stopper
which prevents the transmitter from being rotated more
than 360°.
1) Using the Allen wrench, remove the two setscrews
securing the transmitter section to the capsule
assembly.
2) Rotate the transmitter section slowly to the desired
position.
3) Tighten the two setscrews to a torque of 1.5 N·m
{15 kgf·cm}.
IMPORTANT
Gasket
Stud bolt
Nut
Figure 4.1Transmitter Mounting
F0401.EPS
Do not rotate the transmitter section more than
the above limit.
Transmitter section
Conduit connection
Figure 4.2Rotating Transmitter Section
Rotate 180° segments
Pressure-detector section
F0402.EPS
4-1
IM 01C25C01-01E
4. INSTALLATION
4.4 Changing Integral Indicator
Direction
IMPORTANT
• Always turn OFF power and shut off and
release pressures before disassembly.
• For changing the integral indicator direction,
the transmitter must be removed to a nonhazardous area.
An integtal indicator can be installed in the following
three directions, Refer to subsection 8.4 for attaching
and removing the integral indicator.
F0403.EPS
Figure 4.3Integral Indicator Direction
4.5 Mounting the Flushing Connection Ring
4.5.1 Mounting to Pressure Detector
Section
The flushing connection ring is mounted to high
pressure side pressure detector section as shown in
Figure 4.4.
At the factory shipment, the flushing connection ring is
already assembled and attached to high pressure side
process detector section.
Pressure-detector section
Ring
Drain/vent plug
Spiral gasket
Ring holder
Groove for installing
spiral gasket
View from pressure detector section side
F0404.EPS
Figure 4.4 Mounting to Pressure Detector Section
(1) Mount the ring holder on the ring and loosely
tighten the mounting screws.
(2) Place the spiral gasket in the ring groove. With the
ring correctly aligned and flush with the face of the
pressure detector, securely tighten each ring
holder’s mounting screws.
(3) Position the ring so that the drain/vent plugs are
aligned straight up and down.
4-2
IM 01C25C01-01E
4. INSTALLATION
4.5.2 Mounting to Process Flange
Tighten the bolts to completely close the gap between
the ring and the pressure detector section.
The mating flange, gasket, stud bolts and nuts are to be
procured by the customer.
Mating flange
Gasket
Spiral gasket
Ring
Diaphragm
Pressure-detector
section
F0405.EPS
4.6 Affixing the Teflon Film
The FEP Teflon option includes a teflon film and
fluorinated oil. Before mounting the transmitter to the
process flange, affix the teflon film as follows:
IMPORTANT
1) Position the diaphragm so that the diaphragm
is in a upward position.
2) Pour the fluorinated oil on the diaphragm and
gasket area covering it completely and evenly.
Be careful not to scratch the diaphragm or
change the its shape.
3) Affix the teflon film over the diaphragm and
gasket area.
4) Next, carefully inspect the cover and try to
identify any entrapped air between the diaphragm and the teflon film. The air must be
removed to ensure optimum performance. If
air pockets are present, use your fingers to
remove the air by starting at the center of the
diaphragm and work your way out.
5) Position the gasket on the Teflon film.
6) Mount the transmitter onto the process flange.
Figure 4.5 Mounting to Process Flange
IMPORTANT
• Confirm that there is no gap between the ring
and the process-detector section after they
are mounted on the process flange. A gap can
lead to a sudden, explosive release of process
fluids.
•When mounting or removing the ring, take
care not to tilt the pressure detector downward
as the ring can slip off and cause injury.
•When re-mounting the ring, use the new spiral
gasket as shown in below table.
Table 4.1 Spiral Gasket for Pressure Detector Section
Description
For 3-inch flange
For 3-inch flange**
For 2-inch flange
For 2-inch flange**
For 1 1/2-inch flange
For 1 1/2-inch flange**
T0401.EPS
*: Material; 316SST (Hoop), PTFE Teflon (Filler)
**: For oil-prohibited use (Option code: /K1, /K2, /K5, /K6)
Fluorinated oil
[PART No. : F9145YN]
PART No.
F9347XA
F9347YD
Figure 4.6Affixing the Teflon Film
Prosess Flange size
3 inch (80mm)
2 inch (50mm)
Teflon film
Diaphragm
Gasket area
F0406.EPS
4-3
IM 01C25C01-01E
5. INSTALLING IMPULSE PIPING
5.INSTALLING IMPULSE PIPING
5.1 Impulse Piping Installation
Precautions
The impulse piping that connects the process outputs to
the transmitter must convey the process pressure
accurately. If, for example, gas collects in a liquidfilled impulse line, or the drain of a gas-filled impulse
line becomes plugged, it will not convey the pressure
accurately. Since this will cause errors in the measurement output, select the proper piping method for the
process fluid (gas, liquid, or steam). Pay careful
attention to the following points when routing the
impulse piping and connecting the impulse piping to a
transmitter.
5.1.1 Connecting Impulse Piping to the
Transmitter
(1) Check the High and Low Pressure Connec-
tions on the Transmitter (Figure 5.1)
The letters H and L on the capsule assembly indicate
the high and low pressure sides. For liquid level
measurement in an open tank, the low pressure side
measures atmospheric pressure. For a closed tank,
connect the impulse line to the low pressure side of the
transmitter to measure the pressure in the tank.
(2) Tightening the Process Connector Mount-
ing Bolts
After connecting the impulse line, tighten the process
connector mounting bolts uniformly.
(3) Removing the Impulse Piping Connecting
Port Dustproof Cap
The impulse piping connecting port of the transmitter
is covered with a plastic cap to keep out dust. This cap
must be removed before connecting the line. (Be
careful not to damage the threads when removing this
cap. Never insert a screwdriver or other tool between
the cap and port threads to remove the cap.)
5.1.2 Routing the Impulse Piping
(1) Impulse Piping Slope
The impulse piping must be routed with only an
upward or downward slope. Even for horizontal
routing, the impulse piping should have a slope of at
least 1/10 to prevent condensate (or gases) from
accumulating in the pipes.
(2) Preventing Freezing
If there is any risk that the process fluid in the impulse
piping or transmitter could freeze, use a steam jacket or
heater to maintain the temperature of the fluid.
H and L appear here
Low pressure
connection
Process connector
Bolt
F0501.EPS
Figure 5.1H and L Symbols on a Capsule Assembly
NOTE
After completing the connections, close the valves
on the process pressure taps (
valves at the transmitter (
impulse piping drain valves, so that condensate,
sediment, dust and other extraneous material
cannot enter the impulse piping.
5-1
main valves
stop valves
), and the
IM 01C25C01-01E
), the
5.2 Impulse Piping Connection
Examples
Figure 5.2 shows examples of typical impulse piping
connections. Before connecting the transmitter to the
process, study the transmitter installation location, the
process piping layout, and the characteristics of the
process fluid (corrosiveness, toxicity, flammability,
etc.), etc. and make appropriate changes and additions
to the connection configurations.
Open T ank
5. INSTALLING IMPULSE PIPING
Pipe (opened to atmosphere
at low pressure side)
Closed T ank
Tap valve
Union or flange
Vent plug
Tee
Drain valve
Drain plug
F0502.EPS
Figure 5.2Impulse Piping Connection Examples
5-2
IM 01C25C01-01E
6.WIRING
6. WIRING
6.1 Wiring Precautions
IMPORTANT
• Lay wiring as far as possible from electrical
noise sources such as large capacity transformers, motors, and power supplies.
• Remove the electrical connection dust cap
before wiring.
• All threaded parts must be treated with waterproofing sealant. (A non-hardening silicone
group sealant is recommended.)
• To prevent noise pickup, do not pass signal
and power cables through the same ducts.
• Explosion-protected instruments must be wired
in accordance with specific requirements (and,
in certain countries, legal regulations) in order
to preserve the effectiveness of their explosionprotected features.
• The terminal box cover is locked by an Allen
head bolt (a shrouding bolt) on ATEX
flameproof type transmitters. When the shrouding bolt is driven clockwise using an Allen
wrench, it goes in. The cover lock can then be
released and the cover can be opened by
hand. See subsection 8.4 “Disassembly and
Reassembly” for details.
• Plug and seal an unused conduit connection.
6.3 Connections of External
Wiring to Terminal Box
6.3.1 Power Supply Wiring Connection
Connect the power supply wiring to the SUPPLY +
and – terminals. When /AL is specified, also refer to
subsection 6.3.5.
+
Power supply
–
Figure 6.1Power Supply Wiring Connection
6.3.2 External Indicator Connection
Available only when /AL is not specified.
Connect wiring for external indicators to the CHECK +
and – terminals.
(Note) Use a external indicator whose internal resistance is 10 Ω or
less.
Power supply
+
–
Transmitter terminal box
ULSE
P
SUPP
LY
K
EC
H
C
M
R
A
AL
External indicator
E
S
L
U
P
SUP
P
L
Y
K
EC
H
C
M
R
ALA
F0601.EPS
6.2 Selecting the Wiring Materials
(a) Use stranded leadwires or cables which are the
same as or better than 600 V grade PVC insulated
wire (JIS C3307) or its equivalent.
(b) Use shielded wires in areas that are susceptible to
electrical noise.
(c) In areas with higher or lower ambient temperatures,
use appropriate wires or cables.
(d) In environment where oils, solvents, corrosive gases
or liquids may be present, use wires or cables that
are resistant to such substances.
(e) It is recommended that crimp-on solderless terminal
lugs (for 4 mm screws) with insulating sleeves be
used for leadwire ends.
Transmitter terminal box
Figure 6.2External Indicator Connection
6.3.3 Communicator Connection
Connect the BT200 or HART275 HHT to the SUPPLY
+ and – terminals. (Use hooks.)
Transmitter terminal box
BT200
Figure 6.3BT200 Connection
6-1
E
LS
U
P
SU
PPLY
K
EC
H
C
M
R
ALA
+
Power supply
–
Ignore the polarity
since the BT200 is
AC-coupled to the
terminal box.
IM 01C25C01-01E
F0602.EPS
F0603.EPS
6. WIRING
S
6.3.4 Check Meter Connection
Available only when /AL is not specified.
Connect the check meter to the CHECK + and –
terminals. (Use hooks.)
•A 4 to 20 mA DC output signal from the CHECK +
and – terminals.
(Note) Use a check meter whose internal resistance is 10 Ω or less.
Check meter
Figure 6.4Check Meter Connection
Transmitter terminal box
E
S
L
U
P
S
U
P
P
L
Y
K
C
E
H
C
M
R
ALA
Power supply
+
–
F0604.EPS
6.3.5 Status Output Connection
When option code /AL is specified, connect the
external wiring as shown in Figure 6.5.
To configure and activate the process alarm function
and status output, it is necessary to set some parameters. Refer to each communication manual for
procedures.
Transmitter
terminal box
S
U
P
P
L
Y
K
EC
H
C
R
ALA
Use two-wire separately shielded cables.
E
S
L
U
P
M
Shielded cable
External power
supply 30V DC,
120mA max
Figure 6.5Status Output Connection
24V DC
+
250
Ω
Distributor
Magnetic
valve
–
AC power supply
F0605.EPS
(1) General-use Type and Flameproof Type
Hazardous LocationNonhazardous Location
Transmitter terminal box
Distributor
(Power supply unit)
PULSE
SU
P
P
LY
K
CHEC
ALARM
Receiver
instrument
F0606.EPS
Figure 6.6Connection between Transmitter and Distributor
(2) Intrinsically Safe Type
With the intrinsically safe type, a safety barrier must be
included in the loop.
Hazardous LocationNonhazardous Location
Transmitter terminal box
Distributor
(Power supply unit)
PULSE
SUP
P
LY
K
CHEC
ALARM
Receiver
instrument
Figure 6.7
Safety barrier
Connection between Transmitter and Distributor
F0607.EPS
6.4.2 Wiring Installation
(1) General-use Type and Intrinsically Safe
Type
With the cable wiring, use a metallic conduit or
waterproof glands.
• Apply a non-hardening sealant to the terminal box
connection port and to the threads on the flexible
metal conduit for waterproofing.
6.4 Wiring
6.4.1 Loop Configuration
Since the DPharp uses a two-wire transmission system,
signal wiring is also used as power wiring.
DC power is required for the transmitter loop. The
transmitter and distributor are connected as shown
below.
For details of the power supply voltage and load
resistance, see section 6.6; for communications line
requirements, see section 9.1.
Flexible metal conduit
Apply a non-hardening
Wiring metal
conduit
sealant to the threads for
waterproofing.
Tee
Drain plug
Figure 6.8Typical Wiring Using Flexible Metal Conduit
6-2
IM 01C25C01-01E
F0608.EP
6. WIRING
(2) Flameproof Type
Wire cables through a flameproof packing adapter, or
use a flameproof metal conduit.
Wiring cable through flameproof packing adapter.
• Apply a non-hardening sealant to the terminal box
connection port and to the threads on the flameproof
packing adapter for waterproofing.
Flameproof packing adapter
Flexible metal conduit
Wiring metal
conduit
Apply a non-hardening
sealant to the threads for
waterproofing.
Tee
Drain plug
F0609.EPS
Figure 6.9Typical Cable Wiring Using Flameproof
Packing Adapter
Flameproof metal conduit wiring
•A seal fitting must be installed near the terminal box
connection port for a sealed construction.
•Apply a non-hardening sealant to the threads of the
terminal box connection port, flexible metal conduit
and seal fitting for waterproofing.
Non-hazardous area
Hazardous area
Flameproof
heavy-gauge
steel conduit
Tee
Drain plug
Figure 6.10 Typical Wiring Using Flameproof Metal
Conduit
Gas sealing device
Flameproof flexible
metal conduit
Apply a non-hardening
sealant to the threads of
these fittings for
waterproofing
Seal fitting
After wiring, impregnate the fitting
with a compound to seal tubing.
F0610.EPS
6.5 Grounding
Grounding is always required for the proper operation
of transmitters. Follow the domestic electrical requirements as regulated in each country. For a transmitter
with a built-in lightning protector, grounding should
satisfy ground resistance of 10 or less.
Ground terminals are located on the inside and outside
of the terminal box. Either of these terminals may be
used.
E
S
L
U
P
S
U
P
P
L
Y
K
EC
H
C
M
R
Ground terminal
(inside)
Ground terminal
(outside)
Figure 6.11 Ground Terminals
ALA
F0611.EPS
6.6 Power Supply Voltage and
Load Resistance
When configuring the loop, make sure that the external
load resistance is within the range in the figure below.
(Note) In case of an intrinsically safe transmitter, external load
resistance includes safety barrier resistance.
600
External
load
resistance
R (Ω)
250
R=
E–10.5
0.0244
Communication
applicable range
BRAIN and HART
010.516.625.242
Power supply voltage E (V DC)
Figure 6.12 Relationship between Power Supply Voltage
and External Load Resistance
6-3
IM 01C25C01-01E
F0612.EPS
7.OPERATION
7. OPERATION
7.1 Preparation for Starting
Operation
The EJX210A flange mounted differential pressure
transmitter measures the levels or densities of liquids.
This section describes the operation procedure for the
EJX210A as shown in Figure 7.1 when measuring a
liquid level in an open tank.
(a) Confirm that there is no leak in the connecting part
of the transmitter mounting flange.
Remove the plastic dust cap placed in the process
connector (low pressure side).
(b) Turn ON power and connect the communicator.
Open the terminal box cover and connect the
communicator to the SUPPLY + and – terminals.
(c) Using the communicator, confirm that the transmit-
ter is operating properly. Check parameter values or
change the setpoints as necessary.
See IM 01C25T03-01E (BRAIN communication) or
IM 01C25T01-01E (HART communication) for
communicator operation. If the transmitter is
equipped with an integral indicator, its indication
can be used to confirm that the transmitter is
operating properly.
Confirming that Transmitter is Operating
Properly
Using the BT200
• If the wiring system is faulty, ‘communication error’
appears on the display.
• If the transmitter is faulty, ‘SELF CHECK ERROR’
appears on the display.
PARAM
C60:SELF CHECK
ERROR
communication error
DATADIAGPRNTESC
Communication error
(Faulty wiring)
Self-diagnostic error
(Faulty transmitter)
F0702.EPS
Using the integral indicator
• If the wiring system is faulty, the display stays blank.
• If the transmitter is faulty, an error code is displayed.
Open T ank
Figure 7.1 Liquid Level Measurement
F0701.EPS
Self-diagnostic error on
the integral indicator
(Faulty transmitter)
F0703.EPS
NOTE
If any of the above errors are indicated on the
display of the integral indicator or the communicator, refer to subsection 8.5.3 for corrective
action.
7-1
IM 01C25C01-01E
7. OPERATION
Verify and Change Transmitter Parameter
Setting and Values
The parameters related to the following items are set at
factory as specified by the customer.
•Calibration range
•Integral indicator display
•Output mode
•Software damping (optional)
Other parameters like following are shipped with the
default setting.
•Low-cut
•Process alarm setting
•Static pressure range
•Signal characterizer
•Write protection
To confirm or change the values, see IM 01C25T0101E or 01C25T03-01E.
7.2 Zero Point Adjustment
After completing preparations for operating the
transmitter, adjust the zero point.
Zero point adjustment can be done by turning the
transmitter’s zero-adjustment screw or by using the
communicator. This section describes the procedure for
the zero-adjustment screw. For the communicator
procedure, see the communication manual.
IMPORTANT
Do not turn off the power to the transmitter
immediately after performing a zero point adjustment. Powering off within 30 seconds of performing this procedure will return the zero point
to its previous setting.
(1) When you can obtain Low Range Value
from actual measured value of 0% (0 kPa,
atmospheric pressure);
Zero-adjustment
screw cover
F0704.EPS
The zero-adjustment screw is located inside the cover.
Use a slotted screwdriver to turn the zero-adjustment
screw. Turn the screw clockwise to increase the output
or counterclockwise to decrease the output. The zero
point adjustment can be made with a resolution of
0.01% of the setting range. The degree of zero adjustments varies with the screw turning speed; turn the
screw slowly to make a fine adjustment, quickly to
make a rough adjustment.
When adjusting the transmitter zero point, the liquid
level in a tank does not have to be set to the low limit
(0%) of the measuring range; use a digital manometer
or a glass gauge to match the transmitter output signal
with the actual measured value.
(2) When you cannot obtain Low Range Value
from actual measured value of 0%;
Adjust the transmitter output to the actual measured
value obtained by a digital manometer or a glass
gauge.
[Example]
The measuring range of 50 to 250 kPa; the actual
measured value of 130 kPa.
NOTE
Before performing this adjustment, make sure
that the external zero adjustment function has
NOT been disabled by a parameter setting.
To check the output signal, use a digital multimeter,
calibrator, or communicator.
Actual measured value=x 100=40.0%
130–50
250–50
(=10.4mA)
Turn the screw to match the output signal to the actual
measured value.
7-2
IM 01C25C01-01E
7. OPERATION
7.3 Starting Operation
After completing the zero point adjustment, follow the
procedure below to start operation.
1) Confirm the operating status. If the output signal
exhibits wide fluctuations (hunting) due to periodic
variation in the process pressure, use the communicator to dampen the transmitter output signal.
Confirm the hunting using a receiving instrument or
the integral indicator, and set the optimum damping
time constant.
2) After confirming the operating status, perform the
following:
IMPORTANT
• Remove the communicator from the terminal
box, and confirm that none of the terminal
screws are loose.
• Close the terminal box cover and the amplifier
cover. Screw each cover in tightly until it will
not turn further.
• There are two covers that must be locked on
the ATEX Flameproof type transmitters. An
Allen head bolt (shrouding bolt) under the edge
of each cover is used to lock the cover. When
the shrouding bolt is driven counterclockwise
with an Allen wrench, the bolt rotates upward
and locks the cover. (See page 8-3.) After
locking the covers, confirm that they are secure
and cannot be opened by hand.
• Tighten the zero-adjustment cover mounting
screw to fix the cover in position.
If condensate (or gas) collects in the transmitter
pressure-detector section, the measured pressure may
be in error. If it is not possible to configure the piping
for self-draining (or self-venting) operation, you will
need to loosen the drain (vent) screw on the transmitter
to completely drain (vent) any stagnated liquid (gas).
However, since draining condensate or bleeding off gas
gives the pressure measurement disturbance, this
should not be done when the loop is in operation.
WARNING
Since the accumulated liquid (or gas) may be
toxic or otherwise harmful, take appropriate care
to avoid contact with the body, or inhalation of
vapors.
7.5.1 Draining Condensate
1) Gradually open the drain plug and drain the
transmitter pressure-detector section.
(See Figure 7.2)
2) When all accumulated liquid is completely removed, close the drain plug.
3) Tighten the drain plug to a torque of 34 to 39 N·m
{3.5 to 4 kgf·m}.
7.5.2 Venting Gas
1) Gradually open the vent screw to vent gas from the
transmitter pressur-detector section.
2) When the transmitter is completely vented, close
the vent screw.
3) Tighen the vent screw to a torque of 10 N·m
{1 kgf·m}.
(See Figure 7.2)
7.4 Shutting Down Operation
Turn off the power.
NOTE
Whenever shutting down the transmitter for a
long period, detach the transmitter from the tank.
7.5 Venting or Draining Transmitter Pressure-detector Section
Since this transmitter is designed to be self-draining
and self-venting with vertical impulse piping connections, neither draining nor venting will be required if
the impulse piping is configured appropriately for selfdraining or self-venting operation.
Drain plug
When you loosen the drain plug or the vent screw, the accumulated liquid(or gas)
will be expelled in the direction of the arrow.
Figure 7.2Draining/Venting the Transmitter
7-3
IM 01C25C01-01E
Vent screw
F0705.EPS
7. OPERATION
7.5.3 Draining Condensate for Flushing
Connection Ring
1) Gradually open the drain screw to drain from the
flushing connection ring.
2) When the flushing connection ring is completely
drained, close the drain screw.
3) Tighten the drain screw to a torque of 10 N·m
{1 kgf·m}.
When you loosen the drain screw,
the accumulated liquid(or gas)
will be expelled in the direction of
the arrow.
Drain screw
F0706.EPS
Figure 7.3Draining for Flushing Connection Ring
7.5.4 Venting Gas for Flushing Connec-
tion Ring
1) Gradually open the vent screw to vent gas from the
flushing connection ring.
2) When the flushing connection ring is completely
vented, close the vent screw.
3) Tighten the vent screw to a torque of 10 N·m
{1 kgf·m}.
Vent screw
When you loosen the vent screw,
the accumulated liquid(or drain)
will be expelled in the direction
of the arrow.
F0707.EPS
Figure 7.4Venting for Flushing Connection Ring
7.6 Setting the Range Using the
Range-setting Switch
WARNING
The range setting switch must not be used in the
hazardous area.
When it is necessary to use the switch, operate
it in a non-hazardous location.
When pressure is applied to the transmitter, the lowand high-limit values for the measurement range (LRV
and URV) can be changed (re-ranged) using the rangesetting switch (push-button) located on the optional
integral indicator plate and the external zero adjustment
screw. This procedure does not require use of the
communicator. However, changes in the scale range
and engineering unit display settings for the integral
indicator require use of the communicator.
Follow the procedure below to change the LRV and
URV settings.
[Example]
Rerange LRV to 0 and HRV to 50 kPa.
1) Connect the transmitter and apparatus as shown in
Figure 8.1 and warm it up for at least five minutes.
2) Press the range-setting push-button.
The integral indicator then displays “LRV.SET.”
3) Apply a pressure of 0 kPa (atmospheric pressure) to
the transmitter.
4) Turn the external zero-adjustment screw in the
desired direction. The integral indicator displays the
output signal in %.
5) Adjust the output signal to 0% (1 V DC) by
rotating the external zero-adjustment screw. Doing
so completes the LRV setting.
6) Press the range-setting push-button. The integral
indicator then displays “URV.SET.”
7) Apply a pressure of 50 kPa to the transmitter.
8) Turn the external zero-adjustment screw in the
desired direction. The integral indicator displays the
output signal in %.
9) Adjust the output signal to 100% (5 V DC) by
rotating the external zero-adjustment screw. Doing
so completes the URV setting.
10) Press the range-setting push-button. The transmitter
then switches back to the normal operation mode
with the measurement range of 0 to 50 kPa.
(Note 1)
(Note 2)
(Note 1)
(Note 2)
7-4
IM 01C25C01-01E
Note 1: Wait until the pressure inside the pressure-detector section
has stabilized before proceeding to the next step.
Note 2: If the pressure applied to the transmitter exceeds the previous
LRV (or URV), the integral indicator may display error
number “AL.30” (In this case, the output signal percent and
“AL.30” are displayed alternately every two seconds).
Although “AL.30” is displayed, you may proceed to the next
step. However, should any other error number be displayed,
take the appropriate measure in reference to , “Errors and
Countermeasures” in each communication manual.
IMPORTANT
• Do not turn off the power to the transmitter
immediately after completion of the change in
the LRV and/or URV setting(s). Note that
powering off within thirty seconds after setting
will cause a return to the previous settings.
• Changing LRV automatically changes URV to
the following value.
URV = previous URV + (new LRV – previous LRV)
• If the range-setting push-button and external
zero-adjustment screw are not touched during a
range-change operation, the transmitter automatically switches back to the normal operation
mode.
7. OPERATION
Integral indicator
Range-setting switch
(Push-button)
Figure 7.5Range-setting Switch
Note : Use a thin bar which
has a blunt tip, e.g.,
a hexagonal wrench,
to press the rangesetting push-button
F0708.EPS
7-5
IM 01C25C01-01E
8.MAINTENANCE
8. MAINTENANCE
8.1 Overview
WARNING
Since the accumulated process fluid may be
toxic or otherwise harmful, take appropriate care
to avoid contact with the body or inhalation of
vapors when draining condensate or venting
gas from the transmitter pressure-detector
section and even after dismounting the instrument from the process line for maintenance.
Maintenance of the transmitter is easy due to its
modular construction. This chapter describes the
procedures for calibration, adjustment, and the disassembly and reassembly procedures required for
component replacement.
Transmitters are precision instruments. Please carefully
and thoroughly read the following sections for information on how to properly handle them while performing
maintenance.
IMPORTANT
• As a rule, maintenance of this transmitter
should be done in a shop that has all the
necessary tools.
• The CPU assembly contains sensitive parts
that can be damaged by static electricity.
Take precautions such as using a grounded
wrist strap when handling electronic parts or
touching the board circuit patterns. Also be
sure to place the removed CPU assembly into
a bag with an antistatic coating.
8.2 Calibration Instruments Selection
Table 8.1 lists the instruments that can be used to
calibrate a transmitter. When selecting an instrument,
consider the required accuracy level. Exercise care
when handling these instruments to ensure they
maintain the specified accuracy.
8.3 Calibration
Use the procedure below to check instrument operation
and accuracy during periodic maintenance or troubleshooting.
1) Connect the instruments as shown in figure 8.1 and
warm up the instruments for at least five minutes.
IMPORTANT
• To adjust the transmitter for highest accuracy,
make adjustments with the power supply
voltage and load resistance including leadwire
resistances set close to the conditions under
which the transmitter is installed.
• If the measurement range 0% point is 0 kPa or
shifted in the positive direction (suppressed
zero), the reference pressure should be applied
as shown in the figure.
If the measurement range 0% point is shifted in
the negative direction (elevated zero), the
reference pressure should be applied using a
vacuum pump.
2) Apply reference pressures of 0%, 50%, and 100% of
the measurement range to the transmitter. Calculate
the errors (differences between digital voltmeter
readings and reference pressures) as the pressure is
increased from 0% to 100% and is decreased from
100% to 0%, and confirm that the errors are within
the required accuracy.
8-1
IM 01C25C01-01E
8. MAINTENANCE
Table 8.1 Instruments Required for Calibration
NameRemarksYokogawa-recommended Instrument
Power
supply
Load
resistor
Voltmeter
Model SDBT or SDBS distributor
Model 2792 standard resistor [250 Ω±0.005%, 3 W]
Load adjustment resistor [100 Ω±1%, 1 W]
Model 2501 A digital multimeter
Accuracy (10V DC range): ±(0.002% of rdg + 1 dgt)
4 to 20 mA DC signal
Model MT220 precision digital manometer
1) For 10 kPa class
Accuracy: ±(0.015% of rdg + 0.015% of F.S.)
3) For 700 kPa class
Accuracy: ±(0.02% of rdg + 3digits)
±5 digits
. . . . . . . . . . . . . . . . . . . . . . . . .
±(0.2% of rdg + 0.1% of F.S.)
. . . . . . . . .
. . . . . . . . . . . . .
. . . . . . . . .
for 25 to 130 kPa
for 0 to 25 kPa
for -80 to 0 kPa
for 100 to 700 kPa
for 0 to 100 kPa
for -80 to 0 kPa
Select a manometer having
a pressure range close to
that of the transmitter.
4) For 3000 kPa class
Accuracy: ±(0.02% of rdg + 10 digits)
±(0.2% of rdg + 0.1% of F.S.)
. . . . . . . . . . .
. . . . . . . . .
for 0 to 3000 kPa
for -80 to 0 kPa
5) For 130 kPa abs class
Pressure
generator
Accuracy: ±(0.03% of rdg + 6 digits)
. . . . . . . . . . . .
Model 7674 pneumatic pressure standard for 200 kPa {2 kgf/cm
Accuracy: ±0.05% of F.S.
Dead weight gauge tester 25 kPa {2500mmH
O}
2
Accuracy: ±0.03% of setting
for 0 to 130 kPa abs
2
}, 25 kPa {2500 mmH2O}
Requires air pressure
supply.
Select the one having a
pressure range close to
that of the transmitter.
Pressure
source
Model 6919 pressure regulator (pressure pump)
Pressure range: 0 to 133 kPa {1000 mmHg}
Prepare the vacuum pump
for negative pressure
ranges.
T0801.EPS
Note: The above table contains the instruments capable of performing calibration to the 0.2% level. Since special maintenance and management
procedures involving traceability of each instrument to higher-level standards are required for calibration to the 0.1% or higher level, there
may be difficulties in calibration to this level in the field. For calibration to the 0.1% level, contact Yokogawa representatives from which the
instrument was purchased or the nearest Yokogawa office.
Terminal box
Load resistance,
250Ω
Rc
Load adjusting
resistance, 100Ω
Digital voltmeter
Model MT220
Model 7674 pneumatic
pressure standards
Supply pressure
precision
digital manometer
P
P
Pressure source
Reference pressure
Figure 8.1Instrument Connections
Power
supply
R
V
Mating calibration
flange
E
(Note)
F0801.EPS
8-2
IM 01C25C01-01E
8. MAINTENANCE
8.4
Disassembly and Reassembly
This section describes procedures for disassembly and
reassembly for maintenance and component replacement.
Always turn OFF power and shut off and release
pressures before disassembly. Use proper tools for all
operations. Table 8.2 shows the tools required.
Table 8.2 Tools for Disassembly and Reassembly
ToolRemarksQuantity
1
Phillips screwdriver
Slotted screwdriver
Allen wrenchesJIS B4648
Wrench
Torque wrench
Adjustable wrench
Socket wrench
Socket driver
Tweezers
JIS B4633, No. 2
1
3
One each, nominal 3, 4 and
2.5 mm Allen wrenches
1
Width across flats, 17 mm
1
1
1
Width across flats, 16 mm
1
Width across flats, 5.5 mm
1
T0802.EPS
CAUTION
Precautions for ATEX Flameproof Type
Transmitters
• Flameproof type transmitters must be, as a
rule, removed to a non-hazardous area for
maintenance and be disassembled and reassembled to the original state.
• On the flameproof type transmitters the two
covers are locked, each by an Allen head bolt
(shrouding bolt). When a shrouding bolt is
driven clockwise by an Allen wrench, it is going
in and cover lock is released, and then the
cover can be opened.
When a cover is closed it should be locked by a
shrouding bolt without fail. Tighten the shrouding bolt to a torque of 0.7 N·m {7 kgf·cm}.
Shrouding Bolt
Shrouding Bolt
F0802.EPS
8.4.1 Replacing the Integral Indicator
CAUTION
Cautions for Flameproof Type Transmitters
Users are prohibited by law from modifying the
construction of a flameproof type transmitter.
This would invalidate the agency approval for
the use of the transmitter in a rated area.
It follows that the user is prohibited from using a
flameproof type transmitter with its integral
indicator removed, or from adding an integral
indicator to a transmitter. If such modification is
absolutely required, contact Yokogawa.
This subsection describes the procedure for replacing
an integral indicator. (See figure 8.3)
Removing the Integral Indicator
1) Remove the cover.
2) While supporting the integral indicator with one
hand, loosen its two mounting screws.
3) Dismount the LCD board assembly from the CPU
assembly.
When doing this, carefully pull the LCD board
assembly straight forward so as not to damage the
connector pins between it and the CPU assembly.
Attaching the Integral Indicator
1) Align both the LCD board assembly and CPU
assembly connectors and engage them.
2) Insert and tighten the two mounting screws.
3) Replace the cover.
Output terminal cable
Press
forward
Integral
indicator
Amplifier Cover
Slide
switch
Bracket
(for zero-adjustment
screw pin)
LCD board assembly
Mounting screw
Boss
CPU assembly
Zero-adjustment
screw pin
Zeroadjustment
screw
F0803.EPS
Figure 8.2 Shrouding Bolts
Figure 8.3Removing and Attaching LCD Board Assem-
bly and CPU Assembly
8-3
IM 01C25C01-01E
8. MAINTENANCE
8.4.2 Replacing the CPU Board Assembly
This subsection describes the procedure for replacing
the CPU assembly. (See Figure 8.3)
Removing the CPU Assembly
1) Remove the cover. If an integral indicator is
mounted, refer to Subsection 8.4.1 and remove the
indicator.
2) Turn the zero-adjustment screw to the position
(where the screw head slot is horizontal) as shown
in Figure 8.3.
3) Disconnect the output terminal cable (cable with
brown connector at the end). When doing this,
lightly press the side of the CPU assembly connector and pull the cable connector to disengage.
4) Use a socket driver (width across flats, 5.5mm) to
loosen the two bosses.
5) Carefully pull the CPU assembly straight forward to
remove it.
6) Disconnect the flat cable (cable with white connector at the end) that connects the CPU assembly and
the capsule.
NOTE
Confirm that the zero-adjustment screw pin is
placed properly in the groove on the bracket
prior to tightening the two bosses. If it is not, the
zero-adjustment mechanism will be damaged.
5) Replace the cover.
8.4.3 Replacing the Process Connector
Gasket
This subsection describes the procedure for replacing
the process connector gasket. (See Figure 8.4)
1) Loosen the two bolts and remove the process
connector.
2) Replace the process connector gasket.
3) Mount the process connector. Tighten the bolts
securely and uniformly to a torque of 39 to 49 N·m
{4 to 5 kgf·m}, and verify that there are no pressure
leaks.
NOTE
Be careful not to apply excessive force to the
CPU assembly when removing it.
Mounting the CPU Assembly
1) Connect the flat cable (with white connector)
between the CPU assembly and the capsule.
2) Connect the output terminal cable (with brown
connector).
NOTE
Make certain that the cables are free of pinching
between the case and the CPU assembly edge.
3) Align and engage the zero-adjustment screw pin
with the groove on the bracket on the CPU assembly. Then insert the CPU board assembly straight
onto the post in the amplifier case.
4) Tighten the two bosses. If the transmitter is
equipped with an integral indicator, refer to Subsection 8.4.1 to mount the indicator.
Process connector gasket
Process connector
Bolt
F0804.EPS
Figure 8.4Replacing the Process Connector Gasket
8-4
IM 01C25C01-01E
8. MAINTENANCE
8.5 Troubleshooting
If any abnormality appears in the measured values, use
the troubleshooting flow chart below to isolate and
remedy the problem. Since some problems have
complex causes, these flow charts may not identify all.
If you have difficulty isolating or correcting a problem,
contact Yokogawa service personnel.
8.5.1 Basic Troubleshooting
First determine whether the process variable is actually
abnormal or a problem exists in the measurement
system.
If the problem is in the measurement system, isolate
the problem and decide what corrective action to take.
This transmitter is equipped with a self-diagnostic
function which will be useful in troubleshooting, and
the transmitter equipped with an integral indicator will
show an alarm code as a result of self-diagnosis.
See subsection 8.5.3 for the list of alarms.
See also each communication manual.
: Areas where self-diagnostic offers support
8.5.2 Troubleshooting Flowcharts
The following sorts of symptoms indicate that the
transmitter may not be operating properly.
Example : • There is no output signal.
• Output signal does not change even though
process variable is known to be varying.
• Output value is inconsistent with value
inferred for process variable.
Connect communicator and check self-diagnostics.
Does the self-diagnostic
indicate problem location?
NO
Is power supply
polarity correct?
YES
Refer to error message summary in
Subsection 8.5.3 or in each
communication manual to take actions.
Refer to Section 6.3 to check/correct
polarity at each terminal from power
supply to the terminal box.
YES
NO
Abnormalities appear in measurement.
YES
Inspect the
process system.
YES
Inspect receiver.
Environmental conditions
Check/correct
environmental conditions.
Is process variable
itself abnormal?
NO
Measurement system problem
Isolate problem in
measurement system.
Does problem exist in
receiving instrument?
NO
Operating conditions
Check/correct operating
conditions.
Transmitter itself
Check transmitter.
Figure 8.5Basic Flow and Self-Diagnostics
F0805.EPS
8-5
Are power
supply voltage and load
resistance correct?
YES
Are valves opened or
closed correctly?
YES
Is there any pressure leak?
NO
Is there
continuity through the
transmitter loop wiring?
Do the loop numbers
match?
YES
Contact Yokogawa service personnel.
Refer to Section 6.6 for rated voltage
and load resistance.
Fully close equalizing valve, and fully
open high pressure and low pressure
valves.
Fix pressure leaks, paying particular
attention to connections for impulse
piping,pressure-detector section, etc.
Find/correct broken conductor or
wiring error.
NO
NO
YES
NO
F0806.EPS
IM 01C25C01-01E
8. MAINTENANCE
Output travels beyond 0% or 100%.
Connect BRAIN TERMINAL and check self-diagnostics.
Does the self-
diagnostic indicate problem
YES
location?
NO
Refer to error message summary in each
communication manual to take actions.
Is power supply
NO
polarity correct?
YES
Refer to Section 6.3 to check/correct
polarity at each terminal from power
supply to the terminal box.
Are valves opened or
NO
closed correctly?
YES
Fully open the low pressure valve.
Large output error.
Connect BRAIN TERMINAL and check self-diagnostics.
Does the self-
diagnostic indicate problem
YES
location?
NO
Are valves opened or
Refer to error message summary in each
communication manual to take actions.
NO
closed correctly?
YES
Is impulse piping
Fully open the low pressure valve.
NO
connected correctly?
YES
Refer to individual model user manuals
and connect piping as appropriate for
the measurement purpose.
Is there any pressure leak?
NO
Fix pressure leaks, paying particular
attention to connections for impulse
piping, pressure-detector section, etc.
Is zero point
adjusted correctly?
YES
Adjust the zero point.
Contact Y okogaw a service personnel.
YES
NO
F0807.EPS
Are power supply
voltage and load resistance
correct?
YES
Is transmitter
installed where there is
marked variation in
temperature?
NO
Were appropriate
instruments used for
calibration?
YES
Is output adjusted correctly?
YES
NO
Refer to Section 6.6 for rated voltage
and load resistance.
YES
Provide lagging and/or cooling, or allow
adequate ventilation.
NO
Refer to Section 8.2 when selecting
instruments for calibration.
NO
Adjust the output.
8-6
Contact Y okogaw a service personnel.
F0808.EPS
IM 01C25C01-01E
8. MAINTENANCE
8.5.3 Alarms and Countermeasures
Table 8.3 Alarm Message Summary
IndicatorCauseCountermeasure
None
AL. 01
Sensor problem.
CAP. ERR
Capsule temperature sensor problem.
Capsule EEPROM problem.
AL. 02
AMP. ERR
Amplifier temperature sensor problem.
Amplifier EEPROM problem.
Amplifier problem.
AL. 10
PRESS
AL. 11
Input is outside measurement range limit
of capsule.
Static pressure exceeds limit.
ST. PRSS
AL. 12
CAP . TMP
AL. 13
AMP . TMP
AL. 30
RANGE
AL. 31
Capsule temperature is outside range
(–50 to 130°C).
Amplifier temperature is outside range
(–50 to 95°C).
Output is outside upper or lower range limit
value.
Specified values or settings to define signal
characterizer function do not satisfy the
condition.
AL. 79
Displayed value exceeds limit.
OV. DISP
*1: These alarms may appear only when process alarm function is activated.
Output Operation
during Error
Outputs the signal (Hold,
High, or Low) set with
parameter.
Outputs the signal (Hold,
High, or Low) set with
parameter.
Outputs high range limit
value or low range limit value.
Continues to operate and
output.
Outputs high range limit
value or low range limit value.
Holds output immediately
before error occurred.
Continues to operate and
output.
Holds output immediately
before error occurred.
Continues to operate and
output.
Continues to operate and
output holding static
pressure in %.
Continues to operate and
output.
Replace capsule when error
keeps appearing even
after restart.
Replace amplifier.
Check input or replace
capsule when necessary.
Use heat insulation or
make lagging to keep
temperature within
range.
Check input and range
setting, and change
them as needed.
Check input.
Check setting and change
them as needed.
Check input.
Check setting and change
them as needed.
Check input.
Check setting and change
them as needed.
T0803.EPS
8-7
IM 01C25C01-01E
9. GENERAL SPECIFICATIONS
9.GENERAL SPECIFICATIONS
9.1 Standard Specifications
Refer to IM 01C25T02-01E for FOUNDATION
Fieldbus communication type marked with “”.
Performance Specifications
See General Specifications sheet, GS 01C25C01-01E.
Functional Specifications
Span & Range Limits
Measurement
Span and Range
Span
M
Range
Span
H
Range
kPa
1 to 100
–100 to 100
5 to 500
–500 to 500
Output “”
Two wire 4 to 20 mA DC output with digital communications, linear or square root programmable. BRAIN or
HART FSK protocol are superimposed on the 4 to 20 mA
signal.
Output range: 3.6 mA to 21.6 mA
Output limits conform to NAMUR NE43 can be pre-set by
option C2 or C3.
Failure Alarm “”
Output status at CPU failure and hardware error;
Up-scale: 110%, 21.6 mA DC or more (standard)
Down-scale: –5%, 3.2 mA DC or less
Note: Applicable for Output signal code D and E
Damping Time Constant (1st order)
Amplifier damping time constant is adjustable from 0 to
100.00 seconds and added to response time.
Note: For BRAIN protocol type, when amplifier
damping is set to less than 0.5 seconds, communication may occasionally be unavailable during the
operation, especially while output changes
dynamically. The default setting of damping
ensures stable communication.
Zero can be fully elevated or suppressed, within the lower
and upper range limits of the capsule.
External Zero Adjustment “”
External Zero is continuously adjustable with 0.01%
incremental resolution of span. Re-range can be done
locally using the digital indicator with range-setting switch.
Integral Indicator (LCD display)
5-digit Numerical Display, 6-digit Unit Display and Bar
graph.
The indicator is configurable to display one or up to four of
2
2
the following variables periodically.;
Differential pressure in %, Scaled Differential pressure,
Differential Pressure in Engineering unit, Static Pressure in
Engineering unit.
See “Setting When Shipped” for factory setting.
NORMAL OPERATING CONDITION
(Optional features or approval codes may affect
limits.)
Ambient Temperature Limits
–40 to 85°C (–40 to 185°F)
–30 to 80°C (–22 to 176°F) with LCD display
(Note : The ambient temperature limits must be within the
fill fluid operating temperature range, see table 9.1.)
Process Temperature Limits
High pressure side:
See table 9.1.
Low pressure side:
–40 to 120°C (–40 to 248°F)
Ambient Humidity Limits
0 to 100% RH
Working Pressure Limits
See table 9.1.
For atmospheric pressure or below, see figure 9.1.
Table 9.1 Process temperature, Ambient temperature, and Working pressure
Code
Silicone oil
(high temperature use)
Silicone oil
(general use)
Plopylene glycol
*1: See figure 9.1 ‘Working Pressure and Process Temperature.’
*2: Indicates high pressure side value. The process temperature limit for low pressure side is –40 to 120°C (–40 to 248°F).
*3: This ambient temperature is the transmitter ambient temperature.
*4: In case of wetted parts material code TW (Tantalum), process temperature limit is up to 200°C (392°F).
A
B
P
Process temperature
–10 to 250°C
(14 to 482°F)
–40 to 120°C
(–40 to 248°F)
–10 to 120°C
(14 to 248 °F)
*1*2
*4
Ambient temperature
–10 to 85°C
(14 to 185°F)
–40 to 85°C
(–40 to 185°F)
–10 to 85°C
(14 to 185°F)
*3
flange rating pressure
(atmospheric pressure)
to flange rating pressure
9-1
Working pressure
2.7 kPa abs
(0.38 psi abs) to
100 kPa abs
T0902.EPS
IM 01C25C01-01E
9. GENERAL SPECIFICATIONS
Process temperature
for fill fluid code B
Transmitter ambient
temperature range
(for fill fluid code B)
100 (14.5)
Working
pressure
kPa abs
(psi abs)
10 (1.4)
2.7 (0.38)
1 (0.14)
–50
(–58)0(32)50(122)
Process Temperature C (°F)
Figure 9.1Working Pressure and Process Temperature
(Fill fluid: silicone oil for general and high
temperature use )
Process temperature
for fill fluid code A
100
150
(302)
200
(392)
(212)
Flange max.
working
pressure
250
(482)
Atmospheric
pressure
300
(572)
F0901.EPS
Supply & Load Requirements “”
(Optional features or approval codes may affect
electrical requirements.)
With 24 V DC supply, up to a 550 load can be used. See
graph below.
Supply Voltage
10.5 to 42 V DC for general use and flameproof type.
10.5 to 32 V DC for lightning protector (Option code /A).
10.5 to 30 V DC for intrinsically safe, type n or nonincendive type.
Minimum voltage limited at 16.6 V DC for digital
communications, BRAIN and HART
Load (Output signal code D and E)
0 to 1290 for operation
250 to 600 for digital communication
Communication Requirements “”
(Safety approvals may affect electrical requirements.)
BRAIN
Communication Distance
Up to 2 km (1.25 miles) when using CEV polyethyleneinsulated PVC-sheathed cables. Communication distance
varies depending on type of cable used.
Load Capacitance
0.22 F or less
Load Inductance
3.3 mH or less
Input Impedance of communicating device
10 k or more at 2.4 kHz.
HART
Communication Distance
Up to 1.5 km {1 mile} when using multiple twisted pair
cables. Communication distance varies depending on type
of cable used.
Use the following formula to determine cable length for
specific applications:
600
E-10.5
R=
0.0244
External
load
resistance
250
()
R
10.516.6
Power supply voltage E (V DC)
Figure 9.2Relationship Between Power Supply Voltage
and External Load Resistance
25.242
Digital
Communication
range
BRAIN and HART
F0902.EPS
65 10
L= –
(R C)
6
(Cf + 10,000)
C
Where:
L = length in meters or feet
R = resistance in (including barrier resistance)
C = cable capacitance in pF/m or pF/ft
C
= maximum shunt capacitance of receiving devices in
f
pF/m or pF/ft
EMC Conformity Standards ,
EN 61326, AS/NZS 2064
9-2
IM 01C25C01-01E
9. GENERAL SPECIFICATIONS
PHYSICAL SPECIFICATIONS
Process connections
High pressure side:
Flange connected
See the following table.
Table 9.2 Flange size and rating
Process
connection style
Flush type
Extended type
*: Flushing connection rings are always attached.
Low pressure side:
Threaded
See “MODEL AND SUFFIX CODES.”
Gasket Contact Surface
See the following table.
Table 9.3 Gasket contact surface
Flange
Wetted parts material code
Gasket contact
Surface
: Applicable, —: Not applicable
*1: ANSI B16.5
3-inch
2-inch
1
/2-inch*
1
4-inch
3-inch
Serration
Size
*1
JIS 10K, 20K
ANSI Class 150, 300
JPI Class 150, 300
DIN PN10/16, 25/40
JIS 10K, 20K
ANSI Class 150, 300
JPI Class 150, 300
DIN PN10/16, 25/40
JIS/JPI/DIN
SW,
SE,
WW,
WE
—
Flat (No serration)
Flange
HW,
TW
—
SW,
SE,
WW,
WE
T0903.EPS
ANSI
T0904.EPS
HW,
TW
—
Non-wetted Parts Material
Process Flange
Refer to “MODEL AND SUFFIX CODES”
Bolting
ASTM-B7M carbon steel, 316 SST (ISO A4-70)
stainless steel, or ASTM grade 660 stainless steel
Housing
Low copper cast aluminum alloy with polyurethane,
mint-green paint (Munsell 5.6BG 3.3/2.9 or its
equivalent) or ASTM CF-8M stainless steel.
(3-inch ANSI Class150 flange; without integral indicator, and process connector.)
General use (fill fluid code B or P): 9.5 kg (21.0 lbs)
High temperature use (fill fluid code A): 10.2 kg
(22.5 lbs)
Extended type
(4-inch ANSI Class150 flange, extension length (X
100 mm; without integral indicator, and process
connector.)
General use (fill fluid code B or P): 14.9 kg (32.9 lbs)
High temperature use (fill fluid code A): 15.6 kg
(34.4 lbs)
Add 1.5 kg(3.3lb) for amplifier housing code 2.
2) =
Electrical Connections
See “MODEL AND SUFFIX CODES.”
Wetted Parts Material
High pressure side:
Refer to “MODEL AND SUFFIX CODES”
Flushing connection ring (optional)
Ring and Vent/Drain plugs
Refer to “MODEL AND SUFFIX CODES”
(Spiral) gasket for transmitter side
316SST (Hoop), PTFE Teflon (Filler)
Low pressure side:
Diaphragm, Cover Flange, Process Connector, Capsule
Gasket, and Vent/Drain plug
Refer to “MODEL AND SUFFIX CODES”
Process connector gasket
PTFE Teflon
9-3
IM 01C25C01-01E
9. GENERAL SPECIFICATIONS
9.2 MODEL AND SUFFIX CODES
Instruction
The model and suffix codes for EJX210A consist of two parts; a transmitter body section (I) and a flange mounting section (II).
This specification sheet introduces these two parts separately. The transmitter body section is shown in one table, and the flange
mounting section specifications are listed according to the flange size and the process connection style. First select the model and
suffix codes of transmitter body section and then continue on one of the flange mounting section.
EJX210J
I Transmitter body section
(See Page 9-4)
II Flange mounting section
• Flush type (3, 2, or 1 1/2-inch)
• Extended type (4 or 3-inch)
(See Page 9-5 to 9-9)
Flange mounted differential pressure transmitter· · · · · · · · · · · · · · · · · · · · · · · · ·
4 to 20mA DC with digital communication (BRAIN protocol)
4 to 20mA DC with digital communication(HART protocol)
Digital communication (FOUNDATION Fieldbus protocol)
1 to 100kPa (4 to 400 inH2O)
5 to 500kPa (20 to 2000 inH
Refer to "Low Pressure Side Wetted Parts Materials" Table below.
wetted parts material
Low pressure side
Process connections
without process connector (Rc 1/4 female on the cover flange)
with Rc 1/4 female process connector
with Rc 1/2 female process connector
with 1/4 NPT female process connector
with 1/2 NPT female process connector
without process connector (1/4 NPT female on the cover flange)
ASTM-B7M carbon steel
316SST (ISO A4-70)
ASTM grade660 stainless steel
Horizontal piping type and left side high pressure
Cast-aluminum alloy
ASTM CF-8M Stainless steel
G 1/2 female, one electrical connection without blind plugs
1/2 NPT female, two electrical connections without blind plugs
M20 female, two electrical connections without blind plugs
G 1/2 female, two electrical connections with a blind plug
1/2 NPT female, two electrical connections with a blind plug
M20 female, two electrical connections with a blind plug
Digital indicator
Digital indicator with the range setting switch
None
Flange mounting section
The ‘’ marks indicate the most typical selection for each specification.
*1: Not applicable for output signal code F.
*2: Not applicable for electrical connection code 0.
Table. Low Pressure Side Wetted Parts Materials
Low pressure side wetted
parts material code
#
S
Cover flange and
process connector
ASTM CF-8M
*1
Capsule
Hastelloy C-276
316L SST (Others)
*2
(Diaphragm)
*1: Cast version of 316 SST. Equivalent to SCS14A.
*2: Hastelloy C-276 or N10276
The ‘#’ marks indicate the construction materials conform to NACE material recommendations per MR01-75. For the use of 316 SST material,
there may be certain limitations for pressure and temperature. Please refer to NACE standards for details.
Transmitter body section (I) · · · · · · · · · · · · · · · · · · · ·
Flush type
JIS 10K
JIS 20K
ANSI class 150
ANSI class 300
JPI class 150
JPI class 300
DIN PN10/16
DIN PN25/40
3-inch (80mm)
JIS S25C
JIS SUS304
JIS SUS316
Serration (for ANSI flange with wetted parts material SW only)
Flat (no serration)
[Diaphragm] [Others]
JIS SUS316L
Hastelloy C-276
Tantalum Tantalum
[Ring] [Drain/Vent plugs] [Material]
None — —
Straight type R 1/4 connections
Straight type 1/4 NPT connections JIS SUS316
None
[Process [Ambient
3
Description
#
JIS SUS316 #
*7 #
Hastelloy C-276
*7 #
*6
JIS SUS316
F0905.EPS
#
#
temperature]*3 temperature]
*4*5
–10 to 85°C
-A · · ·
For high temperature use (Silicone oil) –10 to 250°C
-B · · ·
For general use (Silicone oil) –40 to 120°C –40 to 85°C
-P · · ·
For sanitary use (Propylene glycol) –10 to 120°C –10 to 85°C
Option codes/ Optional specification
The ‘’ marks indicate the most typical selection for each specification. Example: EJX210A-DMS5G-912NN-WA13B1SW00-B/
*1: See Table 9.3 ‘Gasket contact surface’ on Page 9-3.
S
*2: When specified flushing connection ring code A or B, exclusive gasket is provided for transmitter side.
*3: Indicates the process temperature limit of high pressure side.
The process temperature limit for low pressure side is –40 to 120°C.
*4: The distance ‘S’ is extended in 30mm.
*5: In case of wetted parts material code TW (Tantalum), the process temperature limit is –10 to 200°C.
*6: Not applicable for gasket contact surface code 1.
*7: Hastelloy C-276 or N10276
The ‘#’ marks indicate the construction materials conform to NACE material recommendations per MR01-75. For the use of 316 SST material,
there may be certain limitations for pressure and temperature. Please refer to NACE standards for details.
Transmitter body section (I) · · · · · · · · · · · · · · · · · · · ·
Flush type
JIS 10K
JIS 20K
ANSI class 150
ANSI class 300
JPI class 150
JPI class 300
DIN PN10/16
DIN PN25/40
2-inch (50mm)
JIS S25C
JIS SUS304
JIS SUS316
Serration (for ANSI flange with wetted parts material WW only)
Flat (no serration)
[Diaphragm] [Others]
Hastelloy C-276
Hastelloy C-276
Tantalum Tantalum
[Ring] [Drain/Vent plugs] [Material]
None — —
Straight type R 1/4 connections
Straight type 1/4 NPT connections JIS SUS316
None
[Process [Ambient
temperature]
For high temperature use (Silicone oil) –10 to 250°C
For general use (Silicone oil) –40 to 120°C –40 to 85°C
For sanitary use (Propylene glycol) –10 to 120°C –10 to 85°C
2
Description
*7 #
JIS SUS316#
*7 #
Hastelloy C-276
*7 #
*6
JIS SUS316
*3
temperature]
*4*5
–10 to 85°C
F0906.EPS
#
#
Option codes/ Optional specification
The ‘’ marks indicate the most typical selection for each specification. Example: EJX210A-DMS5G-912NN-WA12B1WW00-B/
*1: See Table 9.3 ‘Gasket contact surface’ on Page 9-3.
S
*2: When specified flushing connection ring code A or B, exclusive gasket is provided for transmitter side.
*3: Indicates the process temperature limit of high pressure side.
The process temperature limit for low pressure side is –40 to 120°C.
*4: The distance ‘S’ is extended in 30mm.
*5: In case of wetted parts material code TW (Tantalum), the process temperature limit is –10 to 200°C.
*6: Not applicable for gasket contact surface code 1.
*7: Hastelloy C-276 or N10276
The ‘#’ marks indicate the construction materials conform to NACE material recommendations per MR01-75. For the use of 316 SST material,
there may be certain limitations for pressure and temperature. Please refer to NACE standards for details.
T0907.EPS
9-6
IM 01C25C01-01E
II. Flange mounting section (Flush type)
Process flange size: 1 1/2-inch (40mm)
9. GENERAL SPECIFICATIONS
EJX210A
Model
EJX210A
Process connection style
Flange rating
Flange size
Flange material
Gasket contact surface
Wetted parts material
(high pressure side)
Flushing connection ring
Description
Transmitter body section (I) · · · · · · · · · · · · · · · · · · · ·
Flush type
JIS 10K
JIS 20K
ANSI class 150
ANSI class 300
JPI class 150
JPI class 300
1 1/2-inch (40mm)
JIS S25C
JIS SUS304
JIS SUS316
Serration (for ANSI flange only)
Flat (no serration)
[Diaphragm] [Others]
*6 #
Hastelloy C-276
JIS SUS316 #
[Ring] [Drain/Vent plugs] [Material]
None — —
*5
Reducer type R 1/4 connections
JIS SUS316
Reducer type 1/4 NPT connections JIS SUS316
#
#
None
[Process [Ambient
*3
temperature]
For high temperature use (Silicone oil) –10 to 250°C
temperature]
*4
–10 to 85°C
For general use (Silicone oil) –40 to 120°C –40 to 85°C
For sanitary use (Propylene glycol) –10 to 120°C –10 to 85°C
Option codes/ Optional specification
The ‘’ marks indicate the most typical selection for each specification. Example: EJX210A-DMS5G-912NN-WA18B1WW00-B/
*1: See Table 9.3 ‘Gasket contact surface’ on Page 9-3.
S
*2: When specified flushing connection ring code C or D, exclusive gasket is provided for transmitter side.
*3: Indicates the process temperature limit of high pressure side.
The process temperature limit for low pressure side is –40 to 120°C.
*4: The distance ‘S’ is extended in 30mm.
*5: Not applicable for gasket contact surface code 1.
*6: Hastelloy C-276 or N10276
The ‘#’ marks indicate the construction materials conform to NACE material recommendations per MR01-75. For the use of 316 SST material,
there may be certain limitations for pressure and temperature. Please refer to NACE standards for details.
T0908.EPS
9-7
IM 01C25C01-01E
II. Flange mounting section (Extended type)
Process flange size: 4-inch (100mm)
9. GENERAL SPECIFICATIONS
EJX210AE
Model
EJX210A
Process connection style
Flange rating
Flange size
Flange material
Gasket contact surface
Wetted parts material
(high pressure side)
Flushing connection ring
Extension
Transmitter body section (I) · · · · · · · · · · · · · · · · · · · ·
Extended type
JIS 10K
JIS 20K
ANSI class 150
ANSI class 300
JPI class 150
JPI class 300
4-inch (100mm)
JIS S25C
JIS SUS304
JIS SUS316
Serration (for ANSI flange only)
Flat (no serration)
[Diaphragm] [Others] [Pipe]
JIS SUS316L
None
Length (X
Length (X
Length (X
[Process [Ambient
temperature]
For high temperature use (Silicone oil) –10 to 250°C
For general use (Silicone oil) –40 to 120°C –40 to 85°C
For sanitary use (Propylene glycol) –10 to 120°C –10 to 85°C
4
Description
#
JIS SUS316 # JIS SUS316
) = 50mm
2
) = 100mm
2
) = 150mm
2
*2
temperature]
*3
–10 to 85°C
Option codes/ Optional specification
The ‘’ marks indicate the most typical selection for each specification. Example: EJX210A-DMS5G-912NN-EA14B1SE01-B/
S
*1: See Table 9.3 ‘Gasket contact surface’ on Page 9-3.
*2: Indicates the process temperature limit of high pressure side.
The process temperature limit for low pressure side is –40 to 120°C.
*3: The distance ‘S’ is extended in 30mm.
The ‘#’ marks indicate the construction materials conform to NACE material recommendations per MR01-75.
For the use of 316 SST material, there may be certain limitations for pressure and temperature. Please refer to
NACE standards for details.
F0908.EPS
#
T0909.EPS
9-8
IM 01C25C01-01E
II. Flange mounting section (Extended type)
Process flange size: 3-inch (80mm)
9. GENERAL SPECIFICATIONS
EJX210AE
Model
EJX210A
Process connection style
Flange rating
Flange size
Flange material
Gasket contact surface
Wetted parts material
(high pressure side)
Flushing connection ring
Extension
Transmitter body section (I) · · · · · · · · · · · · · · · · · · · ·
Extended type
JIS 10K
JIS 20K
ANSI class 150
ANSI class 300
JPI class 150
JPI class 300
3-inch (80mm)
JIS S25C
JIS SUS304
JIS SUS316
Serration (for ANSI flange only)
Flat (no serration)
[Diaphragm] [Others] [Pipe]
Hastelloy C-276
None
Length (X
Length (X
Length (X
[Process [Ambient
temperature]
For high temperature use (Silicone oil) –10 to 250°C
For general use (Silicone oil) –40 to 120°C –40 to 85°C
For sanitary use (Propylene glycol) –10 to 120°C –10 to 85°C
3
*4 #
) = 50mm
2
) = 100mm
2
) = 150mm
2
Description
JIS SUS316 # JIS SUS316
*2
temperature]
*3
–10 to 85°C
Option codes/ Optional specification
The ‘’ marks indicate the most typical selection for each specification. Example: EJX210A-DMS5G-912NN-EA13B1WE01-B/
S
*1: See Table 9.3 ‘Gasket contact surface’ on Page 9-3.
*2: Indicates the process temperature limit of high pressure side.
The process temperature limit for low pressure side is –40 to 120°C.
*3: The distance ‘S’ is extended in 30mm.
*4: Hastelloy C-276 or N10276
The ‘#’ marks indicate the construction materials conform to NACE material recommendations per MR01-75.
For the use of 316 SST material, there may be certain limitations for pressure and temperature. Please refer to
NACE standards for details.
FM Explosionproof Approval *
Explosionproof for Class I, Division 1, Groups B, C and D
Dust-ignitionproof for Class II/III, Division 1, Groups E, F and G
Hazardous (classified) locations, indoors and outdoors (NEMA 4X)
Factory Mutual (FM)
FM Intrinsically safe Approval *
Intrinsically Safe for Class I, Division 1, Groups A, B, C and D, Class II, Division 1,
Groups E, F and G and Class III, Division 1 Hazardous Locations.
Nonincendive for Class I, Division 2, Groups A, B, C and D, Class II, Division. 2,
Groups F and G, and Class III, Division 1 Hazardous Locations.
CENELEC ATEX (KEMA) Intrinsically safe Approval *
II 1G EEx ia IIC T4
Combined KF2, KS2 and Type n *
Type n: II 3G EEx nL IIC T4
CSA Explosionproof Approval *
[For CSA C22.2]
Canadian Standards
Association (CSA)
Explosionproof for Class I, Division 1, Groups B, C and D
Dustignitionproof for Class II/III, Division 1, Groups E, F and G
[For CSA E60079]
Flameproof for Zone1, Ex d IIC T6...T4 Enclosure IP66 and IP67
CSA Intrinsically safe Approval *
[For CSA C22.2]
Intrinsically safe for Class I, Division 1, Groups A, B, C and D, Class II, Division 1,
Groups E,F and G, Class III, Division 1
Nonincendive for Class I, Division 2, Groups A, B, C and D, Class II, Division 2,
Groups E,F and G, Class III, Division 1
[For CSA E60079]
Ex ia IIC T4, Ex nL IIC T4
2*3
IECEx Scheme
Combined CF1 and CS1 *
IECEx Intrinsically safe, type n and flameproof Approval *
Intrinsically safe and type n [No. IECEx CSA 05.0005]
Ex ia IIC T4, Ex nL IIC T4
Flameproof [No. IECEx CSA 05.0002]
Flameproof for Zone1, Ex d IIC T6...T4
Contact Yokogawa representative for the codes indicated as ‘-’.
*1: Applicable for Electrical connection code 2, 4, 7, and 9.
*2: Applicable for Electrical connection code 2 and 7.
*3: Not applicable for option code /AL.
1
FF1
1*3
FS1
1
1*3
1*3
FU1
KF2
KS2
KU2
2
CF1
2 *3
CS1
CU1
1*3
SU2
T0911.EPS
9-10
IM 01C25C01-01E
9. GENERAL SPECIFICATIONS
DescriptionItem
Amplifier cover only
Amplifier cover and terminal cover, Munsell 7.5 R4/14
Anti-corrosion coating
*1
Painting
Color change
Coating change
Transmitter power supply voltage: 10.5 to 32 V DC ( 10.5 to 30 V DC for intrinsically safe type.)
Lightning protector
Allowable current: Max. 6000 A ( 140 s ), Repeating 1000 A ( 140 s ) 100 times
Applicable Standards: IEC 61000-4-4, IEC 61000-4-5
Status output
*13
Transistor output (open drain: sink type)
Contact rating: 10.5 to 30 V DC, 120 mA DC (max) Low level: 0 to 2 V DC
Degrease cleansing treatment
Oil-prohibited use
Degrease cleansing treatment and with fluorinated oil filled capsule.
Operating temperature 20 to 80C
Oil-prohibited use
with dehydrating treatment
Calibration units
Teflon film
*3
*2 *12
Degrease cleansing treatment and dehydrating treatment
Degrease cleansing treatment and dehydrating treatment with fluorinated oil filled capsule.
Operating temperature 20 to 80C
P calibration (psi unit)
bar calibration (bar unit)
M calibration (kgf/cm
2
unit)
(See table for Span and
Range Limits.)
Diaphragm protection from sticky process fluid by FEP Teflon film attached with fluorinated oil.
Operation range: 20 to 150°C, 0 to 2 MPa (Not applicable for vacuum service).
Failure alarm down-scale : Output status at CPU failure and hardware error is 5%,
3.2 mA DC or less.
Output limits
and failure operation
*5
NAMUR NE43 Compliant
*4
Output signal limits : 3.8 mA to
20.5 mA
Failure alarm down-scale : Output status at CPU
failure and hardware error is 5%, 3.2 mA DC or less.
Failure alarm up-scale : Output status at CPU
failure and hardware error is 110%, 21.6 mA or more.
304SST tag plate wired onto transmitterStainless steel tag plate
High Pressure side: Process flange, Block
High Pressure side: Process flange, Block
High Pressure side: Process flange, Block, Ring
High Pressure side: Process flange, Block, Ring
High Pressure side:
High Pressure side:
Process flange, Block, Pipe, Base
Process flange, Block, Pipe, Base
Low Pressure side: Cover flange
*
8
Low Pressure side: Cover flange, Process connector
*7 *9
*8 *
9
Low Pressure side: Cover flange, Process connector
Low Pressure side: Cover flange, Process connector
*
*
(Flange rating) (Test pressure)
JIS 10K 2 MPa (290psi)
Pressure test/Leak test
Certificate
*14
JIS 20K 5 MPa (720 psi)
ANSI/JPI Class 150 3 MPa (430 psi)
ANSI/JPI Class 300 8 MPa (1160 psi)
ANSI/JPI Class 300 7 MPa (1000 psi)
*2
*10
*11
Nitrogen (N2) Gas
Retention time: 10 minutes
T0912.EPS
*1: Not applicable with color change option.
*2: Applicable for flush type (process connection style code W.)
*3: The unit of MWP (Max. working pressure) on the name plate of a housing is the same unit as specified by option code D1, D3, and D4.
*4: Applicable for output signal code D and E. The hardware error indicates faulty amplifier or capsule.
*5: Applicable for wetted parts material code SW, SE, WW, WE, and HW.
Consult Yokogawa in case gold-plated diaphragm is required for low pressure side.
*6: Also see ‘Ordering Information.’
*7: Applicable for Low Pressure Side Process connection code 0 and 5.
*8: Applicable for Low Pressure Side Process connection code 1, 2, 3, and 4.
*9: Applicable for flushing connection ring code A, B, C, and D.
*10: Applicable for extended type (process connection style code E.)
*11: Pure nitrogen gas is used for oil-prohibited use (option code K1, 2K, K5, and K6.)
*12: Applicable for flushing connection ring code 0.
*13: Check terminals cannot be used when this option is specified. Not applicable for output signal code F and amplifier housing code 2.
*14: The unit on the certificate is always MPa regardless of selection of option code D1, D3, or D4.
Code
P
PR
X2
A
AL
K1
K2
K5
K6
D1
D3
D4
TF1
C1
C2
C3
A1Inside of isolating diaphragms (fill fluid side) are gold plated, effective for hydrogen permeation.Gold-plate
N4
CAData configuration for HART communication typeData configuration at
CB
M0W
M1W
M3W
M4W
M0E
M1E
T51
T54
T52
T56
T55
9-11
IM 01C25C01-01E
9.4 DIMENSIONS
Flush type
• No ring (Flushing connection ring code 0)
External indicator
1
*
d
ø
(4.41)
k
25
conduit connection
(optional)
S
t
Process flange
External indicator
conduit connection
(optional)
S
n-øh
t
Process flange
j
(2.64)
41
(1.61)
(2.64)
41
(1.61)
67
67
(for flame-proof type)
(for flame-proof type)
54
(2.13)
6
(0.24)
Electrical connection
for code 5 and 9
g
D
C
ø
ø
ø
• With ring (Flushing connection ring code A, B, C, and D)
Flushing
connection ring
Drain/vent plug
øD
øC
øg
2
*
*
112
3
Integral indicator(optional)
Conduit connection
Zero adjustment
Process connection
148(5.83)
178(7.01)
Ground terminal
Process connector
(optional)
Shrouding bolt
Integral indicator(optional)
Conduit connection
148
(5.83)
178
(7.01)
Process connection
Ground terminal
Process connector
(optional)
Shrouding bolt
77
3.03)
ø
ø
(
ø
h
n-
Zero adjustment
77
ø
n-
ø
h
110
(0.47)
3.03)
ø
(
(4.33)
3912
(1.54)
54
(2.13)
110(4.33)
(0.47)
54
(2.13)
9. GENERAL SPECIFICATIONS
Unit: mm (Approx.: inch)
Terminal side
69
2.72)
ø
ø
(
129(5.08)
Vent plug
Drain plug
2
31
*
(1.20)
3912
Terminal side
(1.54)
69
2.72)
ø
ø
(
129(5.08)
Vent plug
Drain plug
2
31
*
(1.20)
Extended type
External indicator
Conduit connection
(optional)
j
S
t
X2
øA
øD
øg
øC
n-øh
Process flange
Fill fluid code
General use
High temperature use
B and P
A
113(4.45)
143(5.63)
*1: Indicates inside diameter of gasket contact surface.
*2: When option code K1, K2, K5, or K6 is selected, add 15 mm(0.59
inch) to the value in the flange.
Add 11 mm (0.36 inch) for Drain/vent plugs of flushing connection ring.
Designated differential pressure value
specified in order. (%, Engineering unit or
user scaled value.) Display mode 'Linear'
or 'Square root' is also as specified in
order.
'0 to 25MPa' for M and H capsule.
*1
Display unit is selectable from the units
listed in above 'Calibration Range Units'.
T0914.EPS
● Terminal Wiring
+
SUPPLY
*1*2
CHECK
or
ALARM
*1: When using an external indicator or check meter, the internal
resistance must be 10 or less. A check meter or indicator
cannot be connected when /AL option is specified.
*2: Not available for fieldbus communication type.
Power supply and output terminal
–
+
External indicator (ammeter) terminal
–
or
Status contact output terminal
+
–
(when /AL is specified)
Ground terminal
*1*2
*2
F0911.EPS
9-14
IM 01C25C01-01E
REVISION RECORD
Title: EJX210A
Flange Mounted Differential Pressure Transmitters
Manual No.: IM 01C25C01-01E
EditionDatePageRevised Item
1stOct. 2004—New publication
2ndFeb. 20052-5· Add 2.9.2 ‘CSA Certification’.
2-62.9.3· Delete WARNING on non-incendive power supply.
9-5 to 9-7· Correct description. Rc 1/4 → R 1/4
9-109.3· Add codes for CSA approval.
3rdJuly 20062-32.9· Add note for Fieldbus communication.
2-3 through 2-192.9· Add/change applicable standards.
2-62.9.2· Add descriptions for Note 2.
2-9· Add "2.9.4 IECEx Certification."
2-102.10· Change reference number for Australian standard.
2-112.11· Add descriptions for European Pressure Equipment Directive.
· Add "2.12 Low Voltage Directive."
9-39.1· Add descriptions for stainless steel housing.
9-49.2· Add amplifier housing code 2
9-109.3· Add code of /SU2.
9-119.3· Add note for amplifier housing code 2.
IM 01C25C01-01E
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