Yokogawa eja110a руководство по эксплуатации

Quick Links

Thank you for purchasing the DPharp electronic pressure transmitter.

The DPharp Pressure Transmitters are precisely calibrated at the factory before shipment. To ensure correct and efficient use of the instrument, please read this manual thoroughly and fully understand how to operate the instrument before operating it.

Regarding This Manual

•This manual should be passed on 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 responsibilities for this product except as stated in the warranty.

•If the customer or any third party is harmed by the use of this product, Yokogawa assumes no responsibility for any such harm owing to any defects in the product which were not predictable, or for any indirect damages.

NOTE

For FOUNDATION FieldbusTM, PROFIBUS PA and HART protocol versions, please refer to IM 01C22T02-01E, IM 01C22T03-00E and IM 01C22T01-01E respectively, in addition to this manual.

•The following safety symbol marks are used in this manual:

WARNING

Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION

Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. It may also be used to alert against unsafe practices.

IMPORTANT

Indicates that operating the hardware or software in this manner may damage it or lead to system failure.

NOTE

Draws attention to information essential for understanding the operation and features.

Direct current

1.1 For Safe Use of Product

For the protection and safety of the operator and the instrument or the system including the instrument, please be sure to follow the instructions on safety described in this manual when handling this instrument. In case the instrument is handled in contradiction to these instructions, Yokogawa does not guarantee safety. Please give your attention to the followings.

(a) Installation

•The instrument must be installed by an expert engineer or a skilled personnel. The procedures described about INSTALLATION are not permitted for operators.

1.3 ATEX Documentation

This procedure 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

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.

1. INTRODUCTION

SF

Kaikkien ATEX Ex -tyyppisten tuotteiden käyttöhjeet ovat saatavilla englannin-, saksanja 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.

GR

ATEX Ex, .

ExYokogawa .

This chapter describes important cautions regarding how to handle the transmitter. Read carefully before using the transmitter.

The EJA-A Series pressure transmitters are thoroughly tested at the factory before shipment. When the transmitter is delivered, visually check them to make sure that no damage occurred during ship-ment.

Also check that all transmitter mounting hardware shown in Figure 2.1 is included. If the transmitter was ordered without the mounting bracket or without the process connector, the transmitter mounting hardware is not included. After checking the transmitter, repack it in the way it was delivered until installation.

Bolt

Process connector

Process connector

Gasket

U-bolt

Mounting bracket (L type)

Mounting bracket (Flat type)

F0201.EPS

Figure 2.1 Transmitter Mounting Hardware

2.1Model and Specifications Check

The model name and specifications are indicated on the name plate attached to the case. If the reverse operating mode was ordered (reverse signal), ‘REVERSE’ will be inscribed in field *1; if square root display

mode was ordered, ‘SQRT’ is inscribed in field *2; if square root output mode was ordered, ‘SQRT’ is inscribed in field *3.

: Refer to USER’S MANUAL

F0202.EPS

Figure 2.2 Name Plate

2.2 Unpacking

When moving the transmitter to the installation site, keep it in its original packaging. Then, unpack the transmitter there to avoid damage on the way.

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 water.

•It suffers minimum vibration and shock.

•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:

5% to 100% R.H. (at 40°C)

Preferred temperature and humidity: approx. 25°C and 65% R.H.

(b)When storing the transmitter, repack it as nearly as possible to the way it was packed when delivered from the factory.

(c)If storing a transmitter that has been used, thoroughly clean the chambers inside the cover flanges, so that no measured fluid remains in it. Also make sure before storing that the pressure-detector and transmitter section are securely mounted.

2.4Selecting the Installation Location

The transmitter is designed to withstand severe environmental conditions. However, to ensure stable and accurate operation for years, observe the following precautions when selecting an 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 equipments, provide adequate thermal insulation and/or ventilation.

(b)Ambient Atmosphere

Avoid installing the transmitter in a corrosive atmosphere. If the transmitter must be installed in a corrosive atmosphere, there must be adequate ventilation as well as measures to prevent intrusion or stagnation of rain water in conduits.

(c)Shock and Vibration

Select an installation site suffering minimum shock and vibration (although the transmitter is designed to be relatively resistant to shock and vibration).

(d)Installation of Explosion-protected Transmitters Explosion-protected transmitters can be installed in hazardous areas according to the types of gases for which they are certified. See Subsection 2.9 “Installation of Explosion Protected Type Transmitters.”

2.5 Pressure Connection

WARNING

•Instrument installed in the process is under pressure. Never loosen the process connector bolts to avoid the dangerous spouting of process fluid.

•During draining condensate from the pressuredetector section, take appropriate care to avoid contact with the skin, eyes or body, or inhalation of vapors, if the accumulated process fluid may be toxic or otherwise harmful.

The following precautions must be observed in order to safely operate the transmitter under pressure.

(a)Make sure that the four 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.

2. HANDLING CAUTIONS

CAUTION

Maximum working pressure of the model EJA120A differential pressure transmitter is 50 kPa {0.5 kgf/cm2}.

Should the pressure exceed 50 kPa {0.5 kgf/ cm2}, it is possible to break the sensor. Proceed with caution when applying pressure.

2.6Waterproofing of Cable Conduit Connections

Apply a non-hardening sealant to the threads to waterproof the transmitter cable conduit connections. (See Figure 6.4.2a, 6.4.2b and 6.4.2c.)

2.7Restrictions on Use of Radio Transceiver

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 for such effects, bring the transceiver in use slowly from a distance of several meters from the transmitter, and observe the measurement loop for noise effects. Thereafter, always use the transceiver outside the area affected by noise.

2.8Insulation 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. However, if required, observe the following precautions in the test procedures.

(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. Perform the tests in the following procedure:

• 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.

3)Turn ON the insulation tester power and measure the insulation resistance. The voltage should be

applied short 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.

2.9Installation of Explosion Protected Type

In this section, further requirements and differences and for explosionproof type instrument are described. For explosionproof type instrument, the description in this chapter is prior to other description in this users manual.

For the intrinsically safe equipment and explosionproof equipment, in case the instrument is not restored to its original condition after any repair or modification undertaken by the customer, intrinsically safe construction or explosionproof construction is damaged

2. HANDLING CAUTIONS

and may cause dangerous condition. Please contact Yokogawa for any repair or modification required to the instrument.

NOTE

For FOUNDATION Fieldbus and PROFIBUS PA explosion protected type, please refer to IM 01C22T02-01E and IM 01C22T03-00E respectively.

CAUTION

This instrument is tested and certified as intrinsically safe type or explosionproof type. Please note that the construction of the instrument, installation, external wiring, maintenance or repair is strictly restricted, and non-observance or negligence of this restriction would result in dangerous condition.

WARNING

To preserve the safety of explosionproof equipment requires great care during mounting, wiring, and piping. Safety requirements also place restrictions on maintenance and repair activities. Please read the following sections very carefully.

2.9.1 FM Approval

a.FM Intrinsically Safe Type

Caution for FM intrinsically safe type. (Following

contents refer “DOC. No. IFM012-A12 P.1 and 2.”)

Note 1. Model EJA Series pressure transmitters with optional code /FS1 are applicable for use in hazardous locations.

•Applicable Standard: FM3600, FM3610, FM3611, FM3810, ANSI/NEMA250

•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 Hazardous Locations.

•Nonincendive for Class I, Division 2, Groups A, B, C & D. Class II, Division 2, Groups E, F & G and Class III, Division 1 Hazardous Locations.

•Outdoor hazardous locations, NEMA 4X.

•Temperature Class: T4

•Ambient temperature: –40 to 60°C

Note 2. Entity Parameters

•Intrinsically Safe Apparatus Parameters [Groups A, B, C, D, E, F and G]

Pmax ≤ 0.9W

•Intrinsically Safe Apparatus Parameters [Groups C, D, E, F and G]

Pmax ≤ 0.9 W

•Entity Installation Requirements Vmax ≥ Voc or Vt, Imax ≥ Isc or It, Pmax (IS Apparatus) ≥ Pmax (Barrier)

Ca ≥ Ci + Ccable, La ≥ 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 and G environments.

•Associated apparatus manufacturer’s installation drawing must be followed when installing this apparatus.

•The maximum power delivered from the barrier must not exceed 0.9 W.

•Note a warning label worded “SUBSTITUTION OF COMPONENTS MAY IMPAIR INTRINSIC SAFETY,” and “INSTALL IN ACCORDANCE WITH DOC. No. IFM012-A12 P.1 and 2.”

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.

2. HANDLING CAUTIONS

[Intrinsically Safe]

Hazardous Location Nonhazardous Location

[Nonincendive]

Hazardous Location Nonhazardous Location

b.FM Explosionproof Type

Caution for FM explosionproof type.

Note 1. Model EJA Series differential, gauge, and absolute pressure transmitters with optional code /FF1 are applicable for use in hazardous locations.

•Applicable Standard: FM3600, FM3615, FM3810, ANSI/NEMA250

•Explosionproof for Class I, Division 1, Groups B, C and D.

•Dust-ignitionproof for Class II/III, Division 1, Groups E, F and G.

•Outdoor hazardous locations, 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/NEPA70 and Local Electrical Codes.

•When installed in Division 1, “FACTORY SEALED, CONDUIT SEAL NOT REQUIRED.”

Note 3. Operation

•Keep the “CAUTION” nameplate attached to the transmitter.

CAUTION: OPEN CIRCUIT BEFORE REMOVING COVER. FACTORY SEALED, CONDUIT SEAL NOT REQUIRED. INSTALL IN ACCORDANCE WITH THE INSTRUCTION MANUAL IM 1C22.

•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 EJA 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. ICS003-A12 P.1-1 and P.1-2.”)

Note 1. Model EJA Series differential, gauge, and absolute pressure transmitters with optional code /CS1 are applicable for use in hazardous locations

Certificate: 1053843

•Applicable Standard: C22.2 No.0, No.0.4, No.25, No.30, No.94, No.142, No.157, No.213

•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 Hazardous Locations.

•Nonincendive for Class I, Division 2, Groups A, B, C & D, Class II, Division 2, Groups F & G, and Class III, Hazardous Locations. (not use Safety Barrier)

•Encl. “Type 4X”

•Temperature Class: T4

•Ambient temperature: –40 to 60°C

•Process Temperature: 120°C max.

2. HANDLING CAUTIONS

Note 2. Entity Parameters

• Intrinsically safe ratings are as follows: Maximum Input Voltage (Vmax) = 30 V Maximum Input Current (Imax) = 165 mA Maximum Input Power (Pmax) = 0.9 W Maximum Internal Capacitance (Ci) = 22.5 nF Maximum Internal Inductance (Li) = 730 H

* Associated apparatus (CSA certified barriers) Maximum output voltage (Voc) ≤ 30 V Maximum output current (Isc) ≤ 165 mA Maximum output power (Pmax) ≤ 0.9 W

Note 3. Installation

•All wiring shall comply with Canadian Electrical Code Part I and Local Electrical Codes.

•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.

[Intrinsically Safe]

Hazardous Location Nonhazardous Location

b. CSA Explosionproof Type

Caution for CSA explosionproof type.

Note 1. Model EJA Series differential, gauge, and absolute pressure transmitters with optional code /CF1 are applicable for use in hazardous locations:

Certificate: 1089598

•Applicable Standard: C22.2 No.0, No.0.4, No.25, No.30, No.94, No.142

•Explosionproof for Class I, Division 1, Groups B, C and D.

•Dust-ignitionproof for Class II/III, Division 1, Groups E, F and G.

2. HANDLING CAUTIONS

c.CSA Intrinsically Safe Type/CSA Explosionproof Type

Model EJA 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.

2.9.3 IECEx Certification

Model EJA Series differential, gauge, and absolute 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 EJA Series differential, gauge, and absolute pressure transmitters with optional code /SU2 are applicable for use in hazardous locations.

•No. IECEx KEM 06.0007X

•Applicable Standard: IEC 60079-0:2004, IEC 60079-11:1999, IEC 60079-15:2005, IEC 60079-26:2004

•Type of Protection and Marking Code: Ex ia IIC T4, Ex nL IIC T4

•Ambient Temperature :–40 to 60°C

•Max. Process Temp.: 120°C

•Enclosure: IP67

Note 2. Entity Parameters

•Intrinsically safe ratings are as follows: Maximum Input Voltage (Ui) = 30 V Maximum Input Current (Ii) = 165 mA Maximum Input Power (Pi) = 0.9 W

Maximum Internal Capacitance (Ci) = 22.5 nF Maximum Internal Inductance (Li) = 730 H

•Type «n» ratings are as follows:

Maximum Input Voltage (Ui) = 30 V Maximum Internal Capacitance (Ci) = 22.5 nF Maximum Internal Inductance (Li) = 730 H

• Installation Requirements

Uo ≤ Ui, Io ≤ Ii, Po ≤ Pi,

Co ≥ Ci + Ccable, Lo ≥ Li + Lcable

Uo, Io, Po, Co, and Lo 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.

•The cable entry devices and blanking elements for type n shall be of a certified type providing a level of ingress protection of at least IP54, suitable for the conditions of use and correctly installed.

•Electrical Connection:

The type of electrical connection is stamped near the electrical connection port according to the following marking.

T0202.EPS

Location of the marking

F0210.EPS

Note 4. Operation

• WARNING:

WHEN AMBIENT TEMPERATURE ≥ 55°C, USE THE HEAT-RESISTING CABLES ≥ 90°C.

Note 5. Special Conditions for Safe Use

•WARNING:

IN THE CASE WHERE THE ENCLOSURE OF THE PRESSURE TRANSMITTER IS MADE OF ALUMINUM, IF IT IS MOUNTED IN AN AREA

2. HANDLING CAUTIONS

WHERE THE USE OF ZONE 0 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.

[Intrinsically Safe]

Hazardous Location Nonhazardous Location

Group I/IIC, Zone 0

b. IECEx Flameproof Type

Caution for IECEx flameproof type.

Note 1. Model EJA Series differential, gauge, and absolute pressure transmitters with optional code /SU2 are applicable for use in hazardous locations:

•No. IECEx KEM 06.0005

•Applicable Standard: IEC60079-0:2004, IEC60079-1:2003

•Type of Protection and Marking Code: Ex d IIC T6…T4

•Enclosure: IP67

•Maximum Process Temperature: 120°C (T4), 100°C (T5), 85°C (T6)

•Ambient Temperature: –40 to 75°C (T4), –40 to 80°C (T5), –40 to 75°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. (The plug attached is certificated as the flame proof IP67 as a part of this apparatus.)

•In case of ANSI 1/2 NPT plug, ANSI hexagonal wrench should be applied to screw in.

Note 3. Operation

•WARNING:

AFTER DE-ENERGIZING, DELAY 10 MINUTES BEFORE OPENING.

•WARNING:

WHEN AMBIENT TEMPERATURE ≥ 70°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.

2.9.4CENELEC ATEX (KEMA) Certification

(1) Technical Data

a.CENELEC ATEX (KEMA) Intrinsically Safe Type

Caution for CENELEC ATEX (KEMA) Intrinsically safe type.

Note 1. Model EJA Series differential, gauge, and absolute pressure transmitters with optional code /KS2 for potentially explosive atmospheres:

•No. KEMA 02ATEX1030 X

•Applicable Standard: EN50014:1997, EN50020:1994, EN50284:1999

•Type of Protection and Marking code: EEx ia IIC T4

•Temperature Class: T4

•Enclosure: IP67

•Process Temperature: 120°C max.

•Ambient Temperature: –40 to 60°C

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 = 165 mA

Pi = 0.9 W

Effective internal capacitance; Ci = 22.5 nF Effective internal inductance; Li = 730 H

Note 3. Installation

•All wiring shall comply with local installation requirements. (Refer to the installation diagram)

2. HANDLING CAUTIONS

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]

F0208.EPS

*1: In any safety barriers used the output current must be limited by a resistor “R” such that Imaxout-Uz/R.

b. CENELEC ATEX (KEMA) Flameproof Type

Caution for CENELEC ATEX (KEMA) flameproof type.

Note 1. Model EJA Series differential, gauge, and absolute pressure transmitters with optional code /KF2 for potentially explosive atmospheres:

•No. KEMA 02ATEX2148

•Applicable Standard: EN50014:1997, EN50018:2000

•Type of Protection and Marking Code: EEx d IIC T6···T4

•Temperature Class: T6, T5, and T4

•Enclosure: IP67

•Maximum Process Temperature:

85°C (T6), 100°C (T5), and 120°C (T4)

•Ambient Temperature: T4 and T6; –40 to 75°C, T5; –40 to 80°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 requirement.

•The cable entry devices shall be of a certified

flameproof type, suitable for the conditions of use.

Note 4. Operation

•Keep the “CAUTION” label to the transmitter.

CAUTION: AFTER DE-ENERGIZING, DELAY 10 MINUTES BEFORE

OPENING. WHEN THE AMBIENT TEMP. 70°C, USE 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 5. Maintenance and Repair

•The instrument modification or parts replacement by other than authorized representative of Yokogawa Electric Corporation is prohibited and will void KEMA Flameproof Certification.

c.CENELEC ATEX (KEMA) Intrinsically Safe Type/CENELEC ATEX (KEMA) Flameproof Type/CENELEC ATEX Type n

Model EJA-A Series 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. 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.

CENELEC ATEX Type of Protection “n”

WARNING

When using a power supply not having a nonincendive circuit, please pay attention not to ignite in the surrounding flammable atmosphere. In such a case, we recommend using wiring metal conduit in order to prevent the ignition.

•Applicable Standard: EN60079-15

•Referential Standard: IEC60079-0, IEC60079-11

•Type of Protection and Marking Code: Ex nL IIC T4

•Temperature Class: T4

•Enclosure: IP67

•Process Temperature: 120°C max.

•Ambient Temperature: –40 to 60°C

2. HANDLING CAUTIONS

Note 1. Electrical Data

Ui = 30 V

Effective internal capacitance; Ci = 22.5 nF Effective internal inductance; Li = 730 H

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]

Ratings of the Power Supply as follows;

Maximum Voltage: 30 V

CENELEC ATEX Type of Protection “Dust”

•Applicable Standard: EN50281-1-1:1997

•Type of Protection and Marking Code: II 1D

•Maximum Surface Temperature:

T65°C (Tamb.: 40°C), T85°C (Tamb.: 60°C), and

T105°C (Tamb.: 80°C)

Note 1. Installation instructions

The cable entry devices and blanking elements shall be of a certificated type providing a level of ingress protection of at least IP6x, suitable for the conditions of use and correctly installed.

(2) Electrical Connection

The type of electrical connection is stamped near the electrical connection port according to the following marking.

Location of the marking

F0200.EPS

(3) Installation

WARNING

•All wiring shall comply with local installation requirement and local electrical code.

•There is no need of the conduit seal for both of Division 1 and Division 2 hazardous locations because this product is sealed at factory.

•In case of ANSI 1/2 NPT plug, ANSI hexagonal wrench should be applied to screw in.

(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 hazardous locations.

2. HANDLING CAUTIONS

(6) Name Plate

Name plate

: Refer to USER’S MANUAL

Tag plate for flameproof type

Tag plate for intrinsically safe type

Tag plate for type n protection

(5) Maintenance and Repair

WARNING

The instrument modification or parts replacement by other than authorized Representative of Yokogawa Electric Corporation is prohibited and will void the certification.

Tag plate for flameproof, intrinsically safe type, type n protection, and Dust

D T65 C (Tamb.: 40 C), T85 C (Tamb.: 60 C),

and T105 C (Tamb.: 80 C)

F0298.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. DISP MODE: Specified display mode.

OUTPUT MODE: Specified output mode. NO.: Serial number and year of production*1. TOKYO 180-8750 JAPAN:

The manufacturer name and the address*2.

*1: The third figure from the last shows the last one figure of the year of production. For example, the production year of the product engraved in “NO.” column on the name plate as follows is 2001.

12A819857 132

The year 2001

*2: “180-8750” is a zip code which represents the following address.

2-9-32 Nakacho, Musashino-shi, Tokyo Japan

2.10 EMC Conformity Standards

EN61326-1 Class A, Table 2 (For use in industrial locations)

EN61326-2-3

CAUTION

This instrument is a Class A product, and it is designed for use in the industrial environment. Please use this instrument in the industrial environment only.

NOTE

YOKOGAWA recommends customer to apply the Metal Conduit Wiring or to use the twisted pair Shield Cable for signal wiring to conform the requirement of EMC Regulation, when customer installs the EJA Series Transmitters to the plant.

2.11 PED (Pressure Equipment

Directive)

(1) General

•EJA series of pressure transmitters are categorized as pressure accessories under the vessel section of this directive 97/23/EC, which corresponds to Article 3, Paragraph 3 of PED, denoted as Sound Engineering Practice (SEP).

•EJA130A, EJA440A, EJA510A, and EJA530A can be used above 200 bar and therefore considered as a part of a pressure retaining vessel where category lll, Module H applies. These models with option code /PE3 conform to that category.

(2) Technical Data

•Models without /PE3

Article 3, Paragraph 3 of PED, denoted as Sound Engineering Practice (SEP) .

•Models with /PE3 Module: H

Type of Equipment: Pressure Accessory — Vessel Type of Fluid: Liquid and Gas

Group of Fluid: 1 and 2

2. HANDLING CAUTIONS

*1: PS is maximum allowable pressure for vessel itself.

*2: Referred to Table 1 covered by ANNEX II of EC Directive on Pressure Equipment Directive 97/23/EC T0299.EPS

(3) Operation

CAUTION

•The temperature and pressure of fluid should be applied under the normal operating condition.

•The ambient temperature should be applied under the normal operating condition.

•Please pay attention to prevent the excessive pressure like water hammer, etc. When water hammer is to be occurred, please take measures to prevent the pressure from exceeding PS by setting the safety valve, etc. at the system and the like.

•When external fire is to be occurred, please take safety measures at the device or system not to influence the transmitters.

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 10.1 “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.

Vertical pipe mounting

Transmitter mounting bolt

U-bolt nut

Mounting bracket

U-bolt

50 mm(2-inch) pipe

Horizontal pipe mounting

4.2 Mounting

The distance between the impulse piping connection ports is usually 54 mm (Figure 4.2.1). By changing the orientation of the process connector, the dimension can be changed 51 mm or 57 mm.

The transmitter is shipped with the process connection, according to the ordering specifications. To change the orientation of the process connections, refer to Section 4.3.

The transmitter can be mounted on a nominal 50

mm(2-inch) pipe using the mounting bracket supplied, as shown in Figure 4.2.2 and 4.2.3. The transmitter can be mounted on either a horizontal or

avertical pipe.

When mounting the bracket on the transmitter, tighten the (four) bolts that hold the transmitter with

atorque of approximately 39 N·m {4kgf·m}.

Transmitter mounting bolt

U-bolt nut

Mounting bracket

U-bolt

50 mm(2-inch) pipe

F0402.EPS

Figure 4.2.2 Transmitter Mounting (Horizontal Impulse

Piping Type)

Vertical pipe mounting (Process connector upside)

Vertical pipe mounting (Process connector downside)

Transmitter mounting bolt

Mounting bracket

U-bolt nut

U-bolt

50 mm(2-inch) pipe

F0403.EPS

Figure 4.2.3 Transmitter Mounting (Vertical Impulse Piping

Type)

4 . INSTALLATION

4.3Changing the Process Connection

The transmitter is shipped with the process connection specified at the time of ordering. To make a change such as modifying the drain (vent) plug(s) attached to the upside of the cover flange on shipment to be attached to the downside follow the procedure below.

To begin, use a wrench to slowly and gently unscrew the drain (vent) plug(s). Then, remove and remount them on the opposite side. Wrap sealing tape around the drain (vent) plug threads (*1 in the figure below), and apply a lubricant to the threads of the drain (vent) screw(s) (*2 below) to screw it (them) in. To tighten the drain (vent) plugs, apply a torque of 34 to 39 N·m {3.5 to 4 kgf·m}. Tighten the process connector bolts uniformly to a torque of 39 to 49 N·m {4 to 5 kgf·m}.

piping type, moving the process connectors from the front side to the back is not allowed.

F0404.EPS

Figure 4.3 Changing Process Connection

4.4Swapping the High/Lowpressure Side Connection

4.4.1Rotating Pressure-detector Section 180°

This procedure can be applied only to a transmitter with a vertical impulse piping type.

The procedure below can be used to turn the pressuredetector assembly 180°. Perform this operation in a maintenance shop with the necessary tools laid out and ready for use, and then install the transmitter in the field after making the change.

1)Use a Allen wrench (JIS B4648, nominal 5 mm) to remove the two Allen screws at the joint between the pressure-detector section and transmitter section.

2)Leaving the transmitter section in position, rotate the pressure-detector section 180°.

3)Tighten the two Allen screws to fix the pressuredetector section and transmitter section together (at a torque of 5 N·m).

IMPORTANT

Do not rotate the pressure-detector section more than 180°.

Pressure-detector Section

Allen screw

Before After rotating 180°

F0405.EPS

Figure 4.4 Before and After Modification

4 . INSTALLATION

4.4.2 Using the BRAIN TERMINAL BT200

This method is applicable only to the Model EJA110A-L, EJA110A- M, EJA110A- H, EJA120A- E, EJA130A- M and EJA130A- H.

With a BRAIN TERMINAL, you can change which process connection is used as the high-pressure side without mechanically rotating the pressure-detector section 180 as described in Subsection 4.4.1. To change, call parameter ‘D45: H/L SWAP’ and select REVERSE (right side: low pressure; left side: high pressure) or select NORMAL to change back to normal (right side: high pressure; left side: low pressure).

Figure 4.5 Input/Output Relationship

IMPORTANT

Since the H/L label plate on the capsule assembly will remain unchanged even if this function is used, use this function only if you cannot switch the impulse piping. If the ‘D45: H/L SWAP’ setting is changed, the input/output relationship is reversed as shown in Figure 4.5; be sure this is understood by all. Whenever possible, use the procedure in Subsection 4.4.1.

4.5 Rotating Transmitter Section

The DPharp transmitter section can be rotated in 90° segments.

1)Remove the two Allen screws that fasten the transmitter section and capsule assembly, using the Allen wrench.

2)Rotate the transmitter section slowly in 90° segments.

3)Tighten the two Allen screws to a torque of 5 N·m.

IMPORTANT

Do not rotate the transmitter section more than 180°.

Vertical impulse piping type

Pressure-detector section

Rotate 90° or 180° segments

Conduit connection

Transmitter section

Horizontal impulse piping type

Transmitter section

Rotate 90° or 180° segments

Conduit connection

Zero-adjustment screw

Pressure-detector section

F0407.EPS

Figure 4.6 Rotating Transmitter Section

4 . INSTALLATION

4.6Changing the Direction of Integral Indicator

IMPORTANT

Always turn OFF power, release pressure and remove a transmitter to non-hazardous area before disassembling and reassembling an indicator.

An integral indicator can be installed in the following three directions. Follow the instructions in section 9.4 for removing and attaching the integral indicator.

F0408.EPS

Figure 4.7 Integral Indicator Direction