IM01C22H01-01EN_017

UsersManual

Yokogawa Electric Corporation

Model EJA118W, EJA118N andEJA118Y Diaphragm SealedDifferential Pressure Transmitters[Style: S2]

IM 01C22H01-01E

IM 01C22H01-01E17th Edition

iCONTENTS

IM 01C22H01-01EFD No. IM 01C22H01-01E17th Edition: Oct. 2008(KP)All Rights Reserved, Copyright 1995, Yokogawa Electric Corporation

CONTENTS

1. INTRODUCTION............................................................................................ 1-1Regarding This Manual ................................................................................. 1-11.1 For Safe Use of Product ........................................................................ 1-11.2 Warranty ................................................................................................ 1-21.3 ATEX Documentation ............................................................................ 1-3

2. HANDLING CAUTIONS ................................................................................ 2-12.1 Model and Specifications Check ......................................................... 2-12.2 Unpacking ........................................................................................... 2-12.3 Storage ................................................................................................ 2-12.4 Selecting the Installation Location ...................................................... 2-12.5 Pressure Connection ........................................................................... 2-22.6 Waterproofing of Cable Conduit Connections .................................... 2-22.7 Restrictions on Use of Radio Transceiver .......................................... 2-22.8 Insulation Resistance and Dielectric Strength Test ............................ 2-22.9 Installation of Explosion Protected Type ............................................ 2-3

2.9.1 FM Approval ................................................................................. 2-32.9.2 CSA Certification .......................................................................... 2-52.9.3 IECEx Certification ....................................................................... 2-62.9.4 CENELEC ATEX (KEMA) Certification ........................................ 2-82.9.5 TIIS Certification ......................................................................... 2-11

2.10 EMC Conformity Standards .............................................................. 2-122.11 PED (Pressure Equipment Directive) ............................................... 2-122.12 Low Voltage Directive ....................................................................... 2-12

3. COMPONENT NAMES.................................................................................. 3-1

4. INSTALLATION ............................................................................................. 4-14.1 Precautions ......................................................................................... 4-14.2 Mounting the Diaphragm Seals .......................................................... 4-14.3 Transmitter Mounting .......................................................................... 4-24.4 Affixing the Teflon Film ....................................................................... 4-34.5 Rotating Transmitter Section .............................................................. 4-34.6 Changing the Direction of Integral Indicator ....................................... 4-4

5. WIRING .......................................................................................................... 5-15.1 Wiring Precautions .............................................................................. 5-15.2 Selecting the Wiring Materials ............................................................ 5-15.3 Connections of External Wiring to Terminal Box ................................ 5-1

5.3.1 Power Supply Wiring Connection ................................................ 5-15.3.2 External Indicator Connection ...................................................... 5-15.3.3 BRAIN TERMINAL BT200 Connection ........................................ 5-25.3.4 Check Meter Connection.............................................................. 5-2

5.4 Wiring .................................................................................................. 5-25.4.1 Loop Configuration ....................................................................... 5-2

(1) General-use Type and Flameproof Type..................................... 5-2(2) Intrinsically Safe Type ................................................................. 5-2

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IM 01C22H01-01E

5.4.2 Wiring Installation ......................................................................... 5-3(1) General-use Type and Intrinsically Safe Type............................. 5-3(2) Flameproof Type (TIIS) ............................................................... 5-3

5.5 Grounding ............................................................................................ 5-45.6 Power Supply Voltage and Load Resistance ..................................... 5-4

6. OPERATION .................................................................................................. 6-16.1 Preparation for Starting Operation ...................................................... 6-16.2 Zero Point Adjustment ........................................................................ 6-2

6.2.1 When you can obtain Low Range Value from actualmeasured value of 0% (0 kPa, atmospheric pressure); .............. 6-2

6.2.2 When you cannot obtain Low Range Value from actualmeasured value of 0%; ................................................................ 6-2

6.3 Starting Operation ............................................................................... 6-36.4 Shutting Down Operation .................................................................... 6-36.5 Setting the Range Using the Range-setting Switch ........................... 6-4

7. BRAIN TERMINAL BT200 OPERATION ..................................................... 7-17.1 BT200 Operation Precautions ............................................................. 7-1

7.1.1 Connecting the BT200 ................................................................. 7-17.1.2 Conditions of Communication Line .............................................. 7-1

7.2 BT200 Operating Procedures ............................................................. 7-17.2.1 Key Layout and Screen Display ................................................... 7-17.2.2 Operating Key Functions.............................................................. 7-2

(1) Alphanumeric Keys and Shift Keys ............................................. 7-2(2) Function Keys ............................................................................. 7-2

7.2.3 Calling Up Menu Addresses Using the Operating Keys.............. 7-37.3 Setting Parameters Using the BT200 ................................................. 7-4

7.3.1 Parameter Summary .................................................................... 7-47.3.2 Parameter Usage and Selection .................................................. 7-67.3.3 Setting Parameters ....................................................................... 7-7

(1) Tag No. Setup ............................................................................. 7-7(2) Calibration Range Setup ............................................................. 7-7(3) Damping Time Constant Setup ................................................... 7-8(4) Output Mode and Integral Indicator Display Mode Setup ........... 7-9(5) Output Signal Low Cut Mode Setup ............................................ 7-9(6) Change Output Limits ................................................................. 7-9(7) Integral Indicator Scale Setup ................................................... 7-10(8) Unit Setup for Displayed Temperature ...................................... 7-11(9) Unit Setup for Displayed Static Pressure .................................. 7-12(10) Operation Mode Setup .............................................................. 7-12(11) Impulse Line Connection Orientation Setup ............................. 7-12(12) Output Status Display/Setup when a CPU Failure .................... 7-12(13) Output Status Setup when a Hardware Error Occurs ............... 7-12(14) Bi-directional Flow Measurement Setup ................................... 7-13(15) Range Change while Applying Actual Inputs ............................ 7-13(16) Zero Point Adjustment ............................................................... 7-14(17) Span Adjustment ....................................................................... 7-15(18) Test Output Setup ..................................................................... 7-16(19) Ambient Temperature Zero Shift Compensation ....................... 7-16(20) User Memo Fields ..................................................................... 7-17

7.4 Displaying Data Using the BT200 ..................................................... 7-187.4.1 Displaying Measured Data ......................................................... 7-187.4.2 Display Transmitter Model and Specifications ........................... 7-18

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IM 01C22H01-01E

7.5 Self-Diagnostics ................................................................................ 7-187.5.1 Checking for Problems ............................................................... 7-18

(1) Identifying Problems with BT200 .............................................. 7-18(2) Checking with Integral Indicator ................................................ 7-19

7.5.2 Errors and Countermeasures ..................................................... 7-20

8. MAINTENANCE............................................................................................. 8-18.1 Overview ............................................................................................. 8-18.2 Calibration Instruments Selection ....................................................... 8-18.3 Calibration ........................................................................................... 8-18.4 Disassembly and Reassembly ............................................................ 8-3

8.4.1 Replacing the Integral Indicator ................................................... 8-38.4.2 Replacing the CPU Assembly ...................................................... 8-4

8.5 Troubleshooting ................................................................................... 8-58.5.1 Basic Troubleshooting .................................................................. 8-58.5.2 Troubleshooting Flow Charts ....................................................... 8-5

9. GENERAL SPECIFICATIONS ...................................................................... 9-19.1 Standard Specifications ...................................................................... 9-19.2 Model and Suffix Codes ...................................................................... 9-39.3 Optional Specifications ........................................................................ 9-69.4 Dimensions .......................................................................................... 9-9

INSTALLATION AND OPERATING PRECAUTIONS FORTIIS INTRINSICALLY SAFE EQUIPMENT......................................... EX-A03E

INSTALLATION AND OPERATING PRECAUTIONS FORTIIS FLAMEPROOF EQUIPMENT...................................................... EX-B03E

Customer Maintenance Parts ListDPharp EJA Series Transmitter Section ........................CMPL 01C22A01-02EModel EJA118W, EJA118N and EJA118Y Diaphragm Sealed

Differential Pressure Transmitter ......................... CMPL 01C22H01-01E

REVISION RECORD

1-1

1. INTRODUCTION

IM 01C22H01-01E

1. INTRODUCTIONThank you for purchasing the DPharp electronicpressure transmitter.

The DPharp Pressure Transmitters are preciselycalibrated at the factory before shipment. To ensurecorrect and efficient use of the instrument, please readthis manual thoroughly and fully understand how tooperate 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 changewithout prior notice.

All rights reserved. No part of this manual may bereproduced in any form without Yokogawas writtenpermission.

Yokogawa makes no warranty of any kind withregard to this manual, including, but not limited to,implied warranty of merchantability and fitness for aparticular purpose.

If any question arises or errors are found, or if anyinformation is missing from this manual, pleaseinform the nearest Yokogawa sales office.

The specifications covered by this manual arelimited to those for the standard type under thespecified model number break-down and do notcover custom-made instruments.

Please note that changes in the specifications,construction, or component parts of the instrumentmay not immediately be reflected in this manual atthe time of change, provided that postponement ofrevisions will not cause difficulty to the user from afunctional or performance standpoint.

Yokogawa assumes no responsibilities for thisproduct except as stated in the warranty.

If the customer or any third party is harmed by theuse of this product, Yokogawa assumes no responsi-bility for any such harm owing to any defects in theproduct which were not predictable, or for anyindirect damages.

NOTEFor FOUNDATION FieldbusTM, PROFIBUS PA andHART protocol versions, please refer to IM01C22T02-01E, IM 01C22T03-00E and IM01C22T01-01E respectively, in addition to thismanual.

The following safety symbol marks are used in thismanual:

WARNING

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

CAUTION

Indicates a potentially hazardous situation which,if not avoided, may result in minor or moderateinjury. It may also be used to alert againstunsafe practices.

IMPORTANT

Indicates that operating the hardware or softwarein this manner may damage it or lead to systemfailure.

NOTEDraws attention to information essential forunderstanding the operation and features.

Direct current

1.1 For Safe Use of ProductFor the protection and safety of the operator and theinstrument or the system including the instrument,please be sure to follow the instructions on safetydescribed in this manual when handling this instru-ment. In case the instrument is handled in contradictionto these instructions, Yokogawa does not guaranteesafety. Please give your attention to the followings.

(a) Installation The instrument must be installed by an expert

engineer or a skilled personnel. The proceduresdescribed about INSTALLATION are not permittedfor operators.

1-2

1. INTRODUCTION

IM 01C22H01-01E

In case of high process temperature, care should betaken not to burn yourself because the surface ofbody and case reaches a high temperature.

The instrument installed in the process is underpressure. Never loosen the process connector bolts toavoid the dangerous spouting of process fluid.

During draining condensate from the pressure-detector section, take appropriate care to avoidcontact with the skin, eyes or body, or inhalation ofvapors, if the accumulated process fluid may betoxic or otherwise harmful.

When removing the instrument from hazardousprocesses, avoid contact with the fluid and theinterior of the meter.

All installation shall comply with local installationrequirement and local electrical code.

(b) Wiring The instrument must be installed by an expert

engineer or a skilled personnel. The proceduresdescribed about WIRING are not permitted foroperators.

Please confirm that voltages between the powersupply and the instrument before connecting thepower cables and that the cables are not poweredbefore connecting.

(c) Operation Wait 10 min. after power is turned off, before

opening the covers.

(d) Maintenance Please do not carry out except being written to a

maintenance descriptions. When these proceduresare needed, please contact nearest YOKOGAWAoffice.

Care should be taken to prevent the build up of drift,dust or other material on the display glass andname plate. In case of its maintenance, soft and drycloth is used.

(e) Explosion Protected Type Instrument Users of explosion proof instruments should refer

first to section 2.9 (Installation of an ExplosionProtected Instrument) of this manual.

The use of this instrument is restricted to those whohave received appropriate training in the device.

Take care not to create sparks when accessing theinstrument or peripheral devices in a hazardouslocation.

(f) Modification Yokogawa will not be liable for malfunctions or

damage resulting from any modification made to thisinstrument by the customer.

1.2 Warranty The warranty shall cover the period noted on the

quotation presented to the purchaser at the time ofpurchase. Problems occurred during the warrantyperiod shall basically be repaired free of charge.

In case of problems, the customer should contact theYokogawa representative from which the instrumentwas purchased, or the nearest Yokogawa office.

If a problem arises with this instrument, pleaseinform us of the nature of the problem and thecircumstances under which it developed, includingthe model specification and serial number. Anydiagrams, data and other information you caninclude in your communication will also be helpful.

Responsible party for repair cost for the problemsshall be determined by Yokogawa based on ourinvestigation.

The Purchaser shall bear the responsibility for repaircosts, even during the warranty period, if themalfunction is due to:

- Improper and/or inadequate maintenance by thepurchaser.

- Failure or damage due to improper handling, use orstorage which is out of design conditions.

- Use of the product in question in a location notconforming to the standards specified byYokogawa, or due to improper maintenance of theinstallation location.

- Failure or damage due to modification or repair byany party except Yokogawa or an approvedrepresentative of Yokogawa.

- Malfunction or damage from improper relocationof the product in question after delivery.

- Reason of force majeure such as fires, earthquakes,storms/floods, thunder/lightening, or other naturaldisasters, or disturbances, riots, warfare, orradioactive contamination.

1-3

1. INTRODUCTION

IM 01C22H01-01E

1.3 ATEX DocumentationThis procedure is only applicable to the countries inEuropean Union.

GB

All instruction manuals for ATEX Ex related productsare available in English, German and French. Shouldyou require Ex related instructions in your locallanguage, you are to contact your nearest Yokogawaoffice or representative.

DK

Alle brugervejledninger for produkter relateret tilATEX Ex er tilgngelige p engelsk, tysk og fransk.Skulle De nske yderligere oplysninger om hndteringaf Ex produkter p eget sprog, kan De rettehenvendelse herom til den nrmeste Yokogawaafdeling eller forhandler.

I

Tutti i manuali operativi di prodotti ATEXcontrassegnati con Ex sono disponibili in inglese,tedesco e francese. Se si desidera ricevere i manualioperativi di prodotti Ex in lingua locale, mettersi incontatto con lufficio Yokogawa pi vicino o con unrappresentante.

E

Todos los manuales de instrucciones para los productosantiexplosivos de ATEX estn disponibles en ingls,alemn y francs. Si desea solicitar las instrucciones deestos artculos antiexplosivos en su idioma local,deber ponerse en contacto con la oficina o elrepresentante de Yokogawa ms cercano.

NL

Alle handleidingen voor producten die te makenhebben met ATEX explosiebeveiliging (Ex) zijnverkrijgbaar in het Engels, Duits en Frans. Neem,indien u aanwijzingen op het gebied vanexplosiebeveiliging nodig hebt in uw eigen taal, contactop met de dichtstbijzijnde vestiging van Yokogawa ofmet een vertegenwoordiger.

SF

Kaikkien ATEX Ex -tyyppisten tuotteiden kytthjeetovat saatavilla englannin-, saksan- ja ranskankielisin.Mikli tarvitsette Ex -tyyppisten tuotteiden ohjeitaomalla paikallisella kielellnnne, ottakaa yhteyttlhimpn Yokogawa-toimistoon tai -edustajaan.

P

Todos os manuais de instrues referentes aos produtosEx da ATEX esto disponveis em Ingls, Alemo eFrancs. Se necessitar de instrues na sua lnguarelacionadas com produtos Ex, dever entrar emcontacto com a delegao mais prxima ou com umrepresentante da Yokogawa.

F

Tous les manuels dinstruction des produits ATEX Exsont disponibles en langue anglaise, allemande etfranaise. Si vous ncessitez des instructions relativesaux produits Ex dans votre langue, veuillez biencontacter votre reprsentant Yokogawa le plus proche.

D

Alle Betriebsanleitungen fr ATEX Ex bezogeneProdukte stehen in den Sprachen Englisch, Deutschund Franzsisch zur Verfgung. Sollten Sie dieBetriebsanleitungen fr Ex-Produkte in IhrerLandessprache bentigen, setzen Sie sich bitte mitIhrem rtlichen Yokogawa-Vertreter in Verbindung.

S

Alla instruktionsbcker fr ATEX Ex (explosionsskra)produkter r tillgngliga p engelska, tyska ochfranska. Om Ni behver instruktioner fr dessaexplosionsskra produkter p annat sprk, skall Nikontakta nrmaste Yokogawakontor eller representant.

GR

ATEX Ex

, .

Ex

Yokogawa .

1-4

1. INTRODUCTION

IM 01C22H01-01E

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IM 01C22H01-01E2-1

2. HANDLING CAUTIONS

2. HANDLING CAUTIONSThis chapter describes important cautions regardinghow to handle the transmitter. Read carefully beforeusing the transmitter.

The EJA Series pressure transmitters are thoroughlytested at the factory before shipment. When thetransmitter is delivered, visually check them to makesure that no damage occurred during shipment.

Also check that all transmitter mounting hardwareshown in Figure 2.1 is included. If the transmitter wasordered without the mounting bracket, the transmittermounting hardware is not included. After checking thetransmitter, repack it in the way it was delivered untilinstallation.

Mounting bracketU-bolt nut

U-bolt

Transmittermounting bolt

F0201.EPS

Figure 2.1 Transmitter Mounting Hardware

2.1 Model and SpecificationsCheck

The model name and specifications are indicated on thename plate attached to the case. If the reverse operat-ing mode was ordered (reverse signal), REVERSEwill be inscribed in field *1; if square root displaymode was ordered, SQRT is inscribed in field *2; ifsquare root output mode was ordered, SQRT isinscribed in field *3.

F0202.EPS

: Refer to USER'S MANUAL

Figure 2.2 Name Plate Example of TIIS Flameproof Type

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

2.3 StorageThe following precautions must be observed whenstoring the instrument, especially for a long period.

(a) Select a storage area which meets the followingconditions: 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 85C without integral indicator30 to 80C with integral indicator

Relative humidity:5% to 100% R.H. (at 40C)

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

(b) When storing the transmitter, repack it as nearly aspossible to the way it was packed when deliveredfrom the factory.

(c) If storing a transmitter that has been used, thor-oughly clean the diaphragm surface of the dia-phragm seal (pressure-detector section), so that nomeasured fluid remains on them. Also make surebefore storing that the pressure-detector andtransmitter assemblies are securely mounted.

2.4 Selecting the InstallationLocation

The transmitter is designed to withstand severeenvironmental conditions. However, to ensure stableand accurate operation for years, observe the followingprecautions when selecting an installation location.

(a) Ambient TemperatureAvoid locations subject to wide temperaturevariations or a significant temperature gradient. Ifthe location is exposed to radiant heat from plantequipments, provide adequate thermal insulationand/or ventilation.

IM 01C22H01-01E2-2


(b) Ambient AtmosphereAvoid installing the transmitter in a corrosiveatmosphere. If the transmitter must be installed in acorrosive atmosphere, there must be adequateventilation as well as measures to prevent intrusionor stagnation of rain water in conduits.

(c) Shock and VibrationSelect an installation site suffering minimum shockand vibration (although the transmitter is designedto be relatively resistant to shock and vibration).

(d) Installation of Explosion-protected TransmittersExplosion-protected transmitters can be installed inhazardous areas according to the types of gases forwhich they are certified. See Subsection 2.9 Instal-lation of Explosion Protected Type Transmitters.

2.5 Pressure Connection

WARNING

Instrument installed in the process is underpressure. Never loosen or tighten the flangebolts to avoid the dangerous spouting ofprocess fluid.

Since the accumulated process fluid may betoxic or otherwise harmful, take appropriatecare to avoid contact with the skin, eyes orbody, or inhalation of vapors even after dis-mounting the instrument from process line formaintenance.

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

(a) Never apply a pressure higher than the specifiedmaximum working pressure.

(b) Never loosen or tighten the bolts securing thediaphragm seal flanges when the assembly is underpressure. Do it after releasing the process pressureif required.

2.6 Waterproofing of CableConduit Connections

Apply a non-hardening sealant to the threads towaterproof the transmitter cable conduit connections.(See Figure 5.4.2a, 5.4.2b and 5.4.2d.)

2.7 Restrictions on Use of RadioTransceiver

IMPORTANT

Although the transmitter has been designed toresist high frequency electrical noise, if a radiotransceiver is used near the transmitter or itsexternal wiring, the transmitter may be affectedby high frequency noise pickup. To test for sucheffects, bring the transceiver in use slowly from adistance of several meters from the transmitter,and observe the measurement loop for noiseeffects. Thereafter, always use the transceiveroutside the area affected by noise.

2.8 Insulation Resistance andDielectric Strength Test

Since the transmitter has undergone insulation resis-tance and dielectric strength tests at the factory beforeshipment, normally these tests are not required.However, if required, observe the following precau-tions in the test procedures.

(a) Do not perform such tests more frequently than isabsolutely necessary. Even test voltages that do notcause visible damage to the insulation may degradethe insulation and reduce safety margins.

(b) Never apply a voltage exceeding 500 V DC (100 VDC with an internal lightning protector) for theinsulation resistance test, nor a voltage exceeding500 V AC (100 V AC with an internal lightningprotector) for the dielectric strength test.

(c) Before conducting these tests, disconnect all signallines from the transmitter terminals. Perform thetests in the following procedure:

Insulation Resistance Test1) 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 shortedSUPPLY terminals and the minus () leadwire tothe grounding terminal.

3) Turn ON the insulation tester power and measurethe insulation resistance. The voltage should beapplied short as possible to verify that the insula-tion resistance is at least 20 M.

IM 01C22H01-01E2-3


4) After completing the test and being very careful notto touch exposed conductors disconnect theinsulation tester and connect a 100 k resistorbetween the grounding terminal and the short-circuiting SUPPLY terminals. Leave this resistorconnected at least one second to discharge anystatic potential. Do not touch the terminals while itis discharging.

Dielectric Strength Test1) Short-circuit the + and SUPPLY terminals in the

terminal box.2) Turn OFF the dielectric strength tester. Then

connect the tester between the shorted SUPPLYterminals and the grounding terminal. Be sure toconnect the grounding lead of the dielectric strengthtester to the ground terminal.

3) Set the current limit on the dielectric strength testerto 10 mA, then turn ON the power and graduallyincrease the test voltage from 0 to the specifiedvoltage.

4) When the specified voltage is reached, hold it forone minute.

5) After completing this test, slowly decrease thevoltage to avoid any voltage surges.

2.9 Installation of ExplosionProtected Type

In this section, further requirements and differencesand for explosionproof type instrument are described.For explosionproof type instrument, the description inthis chapter is prior to other description in this usersmanual.

For the intrinsically safe equipment and explosionproofequipment, in case the instrument is not restored to itsoriginal condition after any repair or modificationundertaken by the customer, intrinsically safeconstruction or explosionproof construction is damagedand may cause dangerous condition. Please contactYokogawa for any repair or modification required tothe instrument.

NOTE

For FOUNDATION Fieldbus and PROFIBUS PAexplosion protected type, please refer to IM01C22T02-01E and IM 01C22T03-00E respec-tively.

CAUTION

This instrument is tested and certified as intrinsi-cally safe type or explosionproof type. Pleasenote that the construction of the instrument,installation, external wiring, maintenance orrepair is strictly restricted, and non-observanceor negligence of this restriction would result indangerous condition.

WARNING

To preserve the safety of explosionproof equip-ment requires great care during mounting,wiring, and piping. Safety requirements alsoplace restrictions on maintenance and repairactivities. Please read the following sections verycarefully.

2.9.1 FM Approval

a. FM Intrinsically Safe TypeCaution for FM intrinsically safe type. (Followingcontents refer DOC. No. IFM012-A12 P.1 and 2.)

Note 1. Model EJA Series pressure transmitterswith optional code /FS1 are applicable foruse 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 & Gand 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 andClass III, Division 1 Hazardous Locations.

Outdoor hazardous locations, NEMA 4X. Temperature Class: T4 Ambient temperature: 40 to 60C

Note 2. Entity Parameters Intrinsically Safe Apparatus Parameters

[Groups A, B, C, D, E, F and G]Vmax = 30 V Ci = 22.5 nFImax = 165 mA Li = 730 HPmax = 0.9 W

* Associated Apparatus Parameters(FM approved barriers)Voc 30 V Ca > 22.5 nFIsc 165 mA La > 730 HPmax 0.9W

IM 01C22H01-01E2-4


Intrinsically Safe Apparatus Parameters[Groups C, D, E, F and G]Vmax = 30 V Ci = 22.5 nFImax = 225 mA Li = 730 HPmax = 0.9 W

* Associated Apparatus Parameters(FM approved barriers)Voc 30 V Ca > 22.5 nFIsc 225 mA La > 730 HPmax 0.9 W

Entity Installation RequirementsVmax 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 forHazardous (Classified) Locations and the NationalElectric Code (ANSI/NFPA 70).

The configuration of associated apparatus must beFMRC Approved.

Dust-tight conduit seal must be used when installedin a Class II, III, Group E, F and G environments.

Associated apparatus manufacturers installationdrawing must be followed when installing thisapparatus.

The maximum power delivered from the barriermust not exceed 0.9 W.

Note a warning label worded SUBSTITUTION OFCOMPONENTS MAY IMPAIR INTRINSICSAFETY, and INSTALL IN ACCORDANCEWITH 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 YokogawaElectric Corporation is prohibited and will voidFactory Mutual Intrinsically safe and NonincendiveApproval.

F0203-1.EPS

Class I, II, III, Division 1,Groups A, B, C, D, E, F, GEJA Series Pressure Transmitters Safety Barrier

Supply

Hazardous Location Nonhazardous Location

General PurposeEquipment

+

+

+

+

[Intrinsically Safe]

F0203-2.EPS

EJA Series Pressure Transmitters

Supply


+

+

Class I, II, Division 2,Groups A, B, C, D, E, F, GClass III, Division 1.

Not UseSafety Barrier

[Nonincendive]


b. FM Explosionproof TypeCaution for FM explosionproof type.

Note 1. Model EJA Series differential, gauge,and absolute pressure transmitters withoptional code /FF1 are applicable foruse 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 60C 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 thetransmitter.CAUTION: OPEN CIRCUIT BEFORE REMOV-ING COVER. FACTORY SEALED, CONDUITSEAL NOT REQUIRED. INSTALL IN ACCOR-DANCE WITH THE INSTRUCTION MANUALIM 1C22.

Take care not to generate mechanical sparkingwhen accessing to the instrument and peripheraldevices in a hazardous location.

Note 4. Maintenance and Repair The instrument modification or parts replacement

by other than authorized representative ofYokogawa Electric Corporation is prohibited andwill void Factory Mutual Explosionproof Ap-proval.

IM 01C22H01-01E2-5


c. FM Intrinsically Safe Type/FMExplosionproof TypeModel EJA Series pressure transmitters withoptional code /FU1 can be selected the type ofprotection (FM Intrinsically Safe or FMExplosionproof) for use in hazardous locations.

Note 1. For the installation of this transmitter,once a particular type of protection isselected, any other type of protectioncannot be used. The installation must bein accordance with the description aboutthe type of protection in this instructionmanual.

Note 2. In order to avoid confusion, unnecessarymarking is crossed out on the label otherthan the selected type of protection whenthe transmitter is installed.

2.9.2 CSA Certification

a. CSA Intrinsically Safe TypeCaution for CSA Intrinsically safe type. (Followingcontents refer to DOC No. ICS003-A12 P.1-1 andP.1-2.)

Note 1. Model EJA Series differential, gauge, andabsolute pressure transmitters withoptional code /CS1 are applicable for usein 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 & Gand Class III, Division 1 Hazardous Locations.

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

Encl. Type 4X Temperature Class: T4 Ambient temperature: 40 to 60C Process Temperature: 120C max.

Note 2. Entity Parameters Intrinsically safe ratings are as follows:

Maximum Input Voltage (Vmax) = 30 VMaximum Input Current (Imax) = 165 mAMaximum Input Power (Pmax) = 0.9 WMaximum Internal Capacitance (Ci) = 22.5 nFMaximum Internal Inductance (Li) = 730 H

* Associated apparatus (CSA certified barriers)Maximum output voltage (Voc) 30 VMaximum output current (Isc) 165 mAMaximum 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 ofYokogawa Electric Corporation and YokogawaCorporation of America is prohibited and will voidCanadian Standards Intrinsically safe andnonincendive Certification.

F0204.EPS

Class I, II, III, Division 1,Groups A, B, C, D, E, F, GEJA Series Pressure Transmitters


Safety Barrier

Supply

Supply




+

+

+

+

+

+


Class I, II, Division 2,Groups A, B, C, D, E, F, GClass III


[Nonincendive]


b. CSA Explosionproof TypeCaution for CSA explosionproof type.

Note 1. Model EJA Series differential, gauge, andabsolute pressure transmitters withoptional code /CF1 are applicable for usein 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. Encl Type 4X Temperature Class: T6, T5, and T4 Process Temperature: 85C (T6), 100C (T5), and

120C (T4) Ambient Temperature: 40 to 80C Supply Voltage: 42 V dc max. Output Signal: 4 to 20 mA

Note 2. Wiring All wiring shall comply with Canadian Electrical

Code Part I and Local Electrical Codes.

IM 01C22H01-01E2-6


In hazardous location, wiring shall be in conduit asshown in the figure.

CAUTION: SEAL ALL CONDUITSWITHIN 50 cm OF THE ENCLOSURE.UN SCELLEMENT DOIT TREINSTALL MOINS DE 50 cm DUBTIER.

When installed in Division 2, SEALS NOTREQUIRED.

Note 3. Operation Keep the CAUTION label attached to the

transmitter.CAUTION: OPEN CIRCUIT BEFOREREMOVING COVER.OUVRIR LE CIRCUIT AVANTDNLEVER LE COUVERCLE.



by other than authorized representative ofYokogawa Electric Corporation and YokogawaCorporation of America is prohibited and will voidCanadian Standards Explosionproof Certification.

Non-hazardous Location Equipment

42 V DC Max. 4 to 20 mA DC Signal

Non-Hazardous Locations

Hazardous Locations Division 1

Non-Hazardous Locations

Hazardous Locations Division 2

50 cm Max.

Sealing FittingConduit

EJA Series

Non-hazardous Location Equipment

42 V DC Max. 4 to 20 mA DC Signal

Sealing FittingEJA Series

F0205.EPS

c. CSA Intrinsically Safe Type/CSAExplosionproof TypeModel EJA Series pressure transmitters withoptional code /CU1 can be selected the type ofprotection (CSA Intrinsically Safe or CSAExplosionproof) for use in hazardous locations.

Note 1. For the installation of this transmitter,once a particular type of protection isselected, any other type of protection

cannot be used. The installation must bein accordance with the description aboutthe type of protection in this instructionmanual.


2.9.3 IECEx CertificationModel EJA Series differential, gauge, andabsolute pressure transmitters withoptional code /SU2 can be selected the type ofprotection (IECEx Intrinsically Safe/type n orflameproof) for use in hazardous locations.

Note 1. For the installation of this transmitter,once a particular type of protection isselected, any other type of protectioncannot be used. The installation must bein accordance with the description aboutthe type of protection in this instructionmanual.


a. IECEx Intrinsically Safe Type / type nCaution for IECEx Intrinsically safe and type n.

Note 1. Model EJA Series differential, gauge, andabsolute pressure transmitters withoptional code /SU2 are applicable for usein 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 60C Max. Process Temp.: 120C Enclosure: IP67

Note 2. Entity Parameters Intrinsically safe ratings are as follows:

Maximum Input Voltage (Ui) = 30 VMaximum Input Current (Ii) = 165 mAMaximum Input Power (Pi) = 0.9 WMaximum Internal Capacitance (Ci) = 22.5 nFMaximum Internal Inductance (Li) = 730 H

Type "n" ratings are as follows:Maximum Input Voltage (Ui) = 30 VMaximum Internal Capacitance (Ci) = 22.5 nFMaximum Internal Inductance (Li) = 730 H

IM 01C22H01-01E2-7


Installation RequirementsUo Ui, Io Ii, Po Pi,Co Ci + Ccable, Lo Li + LcableUo, Io, Po, Co, and Lo are parameters ofbarrier.

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 ofYokogawa Electric Corporation and will voidIECEx Intrinsically safe and type n certification.

The cable entry devices and blanking elements fortype n shall be of a certified type providing a levelof ingress protection of at least IP54, suitable forthe conditions of use and correctly installed.

Electrical Connection:The type of electrical connection is stamped nearthe electrical connection port according to thefollowing marking.

T0202.EPS

F0213.EPS

Location of the marking

Note 4. Operation WARNING: WHEN AMBIENT TEMPERATURE 55C,

USE THE HEAT-RESISTING CABLES 90C.Note 5. Special Conditions for Safe Use

WARNING: IN THE CASE WHERE THE ENCLOSURE OF

THE PRESSURE TRANSMITTER IS MADE OFALUMINUM, IF IT IS MOUNTED IN AN AREAWHERE THE USE OF ZONE 0 IS REQUIRED,IT MUST BE INSTALLED SUCH, THAT, EVENIN THE EVENT OF RARE INCIDENTS, IGNI-TION SOURCES DUE TO IMPACT ANDFRICTION SPARKS ARE EXCLUDED.

F0214.EPS


IECEx certifiedSafety Barrier

Supply



+

+

+

+


Group I/IIC, Zone 0

F0215.EPS


Supply


+

+


[type n]

IECEx Certified Equipment [nL]

Group IIC, Zone 2

b. IECEx Flameproof TypeCaution for IECEx flameproof type.

Note 1. Model EJA Series differential, gauge, andabsolute pressure transmitters withoptional code /SU2 are applicable for usein 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: 120C (T4),

100C (T5), 85C (T6) Ambient Temperature: 40 to 75C (T4), 40 to

80C (T5), 40 to 75C (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 theconditions of use and correctly installed.

Unused apertures shall be closed with suitableflameproof certified blanking elements. (The plugattached is certificated as the flame proof IP67 as apart of this apparatus.)

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

Note 3. Operation WARNING: AFTER DE-ENERGIZING, DELAY 10 MINUTES

BEFORE OPENING.

IM 01C22H01-01E2-8


WARNING: WHEN AMBIENT TEMPERATURE 70C,

USE THE HEAT-RESISTING CABLES 90C. Take care not to generate mechanical sparking

when accessing to the instrument and peripheraldevices in a hazardous location.


by other than authorized representative ofYokogawa Electric Corporation is prohibited andwill void IECEx Certification.

2.9.4 CENELEC ATEX (KEMA)Certification

(1) Technical Dataa. CENELEC ATEX (KEMA) Intrinsically Safe

TypeCaution for CENELEC ATEX (KEMA)Intrinsically safe type.

Note 1. Model EJA Series differential, gauge, andabsolute pressure transmitters withoptional code /KS2 for potentially explo-sive 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: 120C max. Ambient Temperature: 40 to 60C

Note 2. Electrical Data In type of explosion protection intrinsic safety EEx

ia IIC only for connection to a certified intrinsicallysafe circuit with following maximum values:

Ui = 30 VIi = 165 mAPi = 0.9 WEffective internal capacitance; Ci = 22.5 nFEffective internal inductance; Li = 730 H

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 replacementby other than authorized representative ofYokogawa Electric Corporation is prohibited andwill 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 mountedin an area where the use of category 1 G apparatusis required, it must be installed such, that, even inthe event of rare incidents, ignition sources due toimpact and friction sparks are excluded.

Transmitter

Supply Safety Barrier *1

Nonhazardous Location

[Installation Diagram]Hazardous Location

+

+

F0208.EPS

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

b. CENELEC ATEX (KEMA) Flameproof TypeCaution for CENELEC ATEX (KEMA) flameprooftype.

Note 1. Model EJA Series differential, gauge, andabsolute pressure transmitters withoptional code /KF2 for potentially explo-sive atmospheres:

No. KEMA 02ATEX2148 Applicable Standard: EN50014:1997,

EN50018:2000 Type of Protection and Marking Code: EEx d IIC

T6T4 Temperature Class: T6, T5, and T4 Enclosure: IP67 Maximum Process Temperature:

85C (T6), 100C (T5), and 120C (T4) Ambient Temperature: T4 and T6; 40 to 75C,

T5; 40 to 80CNote 2. Electrical Data

Supply voltage: 42 V dc max. Output signal: 4 to 20 mA


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 BEFOREOPENING. WHEN THE AMBIENTTEMP.70C, USE HEAT-RESISTINGCABLES90C.

IM 01C22H01-01E2-9




by other than authorized representative ofYokogawa Electric Corporation is prohibited andwill void KEMA Flameproof Certification.

c. CENELEC ATEX (KEMA) Intrinsically SafeType/CENELEC ATEX (KEMA) FlameproofType/CENELEC ATEX Type nModel EJA Series pressure transmitters withoptional code /KU2 can be selected the type ofprotection CENELEC ATEX (KEMA) Intrinsi-cally Safe, Flameproof or CENELEC ATEXType n for use in hazardous locations.

Note 1. For the installation of this transmitter,once a particular type of protection isselected, any other type of protectioncannot be used. The installation must bein accordance with the description aboutthe type of protection in this usersmanual.


CENELEC ATEX Type of Protection n

WARNING

When using a power supply not having a non-incendive circuit, please pay attention not toignite in the surrounding flammable atmosphere.In such a case, we recommend using wiringmetal 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: 120C max. Ambient Temperature: 40 to 60C

Note 1. Electrical DataUi = 30 VEffective internal capacitance; Ci = 22.5 nFEffective internal inductance; Li = 730 H


requirements. (refer to the installation diagram)Note 3. Maintenance and Repair

The instrument modification or parts replacementby other than authorized representative ofYokogawa Electric Corporation is prohibited andwill void Type of Protection n.

Power Supply

(Zone 2 only)Transmitter

Supply

Nonhazardous Location

[Installation Diagram]Hazardous Location

+

+

F0209.EPS

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:

T65C (Tamb.: 40C), T85C (Tamb.: 60C), andT105C (Tamb.: 80C)

Note 1. Installation instructionsThe cable entry devices and blankingelements shall be of a certificated typeproviding a level of ingress protection ofat least IP6x, suitable for the conditionsof use and correctly installed.

(2) Electrical ConnectionThe type of electrical connection is stamped nearthe electrical connection port according to thefollowing marking.

F0200.EPS

Location of the marking

IM 01C22H01-01E2-10


(3) Installation

WARNING

All wiring shall comply with local installationrequirement and local electrical code.

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

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

(4) Operation

WARNING

OPEN CIRCUIT BEFORE REMOVINGCOVER. INSTALL IN ACCORDANCE WITHTHIS USERS MANUAL

Take care not to generate mechanical sparkingwhen access to the instrument and peripheraldevices in hazardous locations.

(5) Maintenance and Repair

WARNING

The instrument modification or parts replacementby other than authorized Representative ofYokogawa Electric orporation is prohibited andwill void the certification.

(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

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

F0298.EPS

D T65C (Tamb.: 40C), T85C (Tamb.: 60C),and T105C (Tamb.: 80C)

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 theaddress*2.

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

The year 2001

12A819857 132

*2: 180-8750 is a zip code which represents thefollowing address.

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

IM 01C22H01-01E2-11


2.9.5 TIIS Certification

a. TIIS Flameproof TypeThe model EJA Series pressure transmitter withoptional code /JF3, which has obtained certificationaccording to technical criteria for explosion-protectedconstruction of electric machinery and equipment(Standards Notification No. 556 from the JapaneseMinistry of Labor) conforming to IEC standards, isdesigned for hazardous areas where inflammable gasesor vapors may be present. (This allows installation inDivision 1 and 2 areas)To preserve the safety of flameproof equipmentrequires great care during mounting, wiring, andpiping. Safety requirements also place restrictions onmaintenance and repair activities. Users absolutelymust read Installation and Operating Precautions forTIIS Flameproof Equipment at the end of thismanual.

CAUTION(For TIIS flameproof type without integral indicator)

When the fill fluid near the sensor part movesfrom within, the instrument outputs a failuresignal either high or low of the specific signal. Inthat case, generate the alarm to identify that thefailure signal is output since the event mayinvalidate the flameproof approval.If the optional integral indicator is equipped, theindicator identifies the alarm on its display.Therefore, no other alarm generation is neces-sary.

Transmitter


PowerSupply

DCSDisplay

4 to 20 mA DC 1 to 5 V DC

F0210.EPS

Figure 2.3 Example of using DCS (Distributed ControlSystem)

b. TIIS Intrinsically Safe TypeThe model EJA Series pressure transmitter with optionalcode /JS3, which has obtained certification according totechnical criteria for explosionprotected construction ofelectric machinery and equipment (StandardsNotification No.556 from the Japanese Ministry ofLabor) conforming to IEC standards, is designed forhazardous areas where explosive or inflammable gasesor vapors may be present. (This allows installation inDivision 0, 1 and 2 areas)

To preserve the safety of flameproof equipment requiresgreat care during mounting,wiring, and piping. Safetyrequirements also place restrictions on maintenance andrepair activities. Users absolutely must read Installationand Operating Precautions for TIIS Intrinsically SafeEquipment at the end of this manual.

CAUTION

For using a safety-barrier with a pressuretransmitter, the safety-barrier must be certified asa safety-barrier itself.A safety-barrier must be used under thefollowing condition.

(1) Condition of the current and voltage limitsMaximum output voltage(Uo) 28VMaximum output current(Io) 94.3mAMaximum output power (Po) 0.66W

(2) Category and GroupCategory iaGroup II C

(3) Relations between a maximum allowedinductance and a field wiring inductance,between a maximum allowed capacitanceand a field wiring capacitance.

Lo Li + LwCo Ci + Cw(Li = 730H, Ci=11nF)

Lo = Maximum external inductanceLi = Maximum internal inductanceLw = Field wiring inductanceGo = Maximum external capacitanceCi = Maximum internal capacitanceCw = Field wiring capacitance

Transmitter


Safety Barrier4 to 20 mA DC

Lw, Cw

F0212.EPS

Li=730 HCi=11 nF

Lo, Co

Figure 2.5 Diagram for Connecting Safety Barrier

IM 01C22H01-01E2-12


2.10 EMC Conformity StandardsEN61326-1 Class A, Table 2 (For use in industriallocations)EN61326-2-3

CAUTION

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

NOTE

YOKOGAWA recommends customer to applythe Metal Conduit Wiring or to use the twistedpair Shield Cable for signal wiring to conform therequirement of EMC Regulation, when customerinstalls the EJA Series Transmitters to the plant.

2.11 PED (Pressure EquipmentDirective)

EJA series of pressure transmitters are categorized aspressure accessories of this directive 97/23/EC, whichcorresponds to Article 3, Paragraph 3 of PED, denotedas Sound Engineering Practice (SEP).

2.12 Low Voltage DirectiveApplicable standard : EN61010-1

(1) Pollution Degree 2 Pollution degree describes the degree to which asoild, liquid, or gas which deteriorates dielectricstrength or surface resistivity is adhering. 2 appliesto normal indoor atmosphere. Normally, only non-conductive pollution occurs. Occasionally, however,temporary conductivity caused by condenstaion mustbe expected.

(2) Installation Category IOvervoltage category (Installation category) de-scribes a number which defines a transient overvoltagecondition. It implies the regulattion for impulsewithstand voltage. I applies to electrical equipmentwhich is supplied from the circuit when appropriatetransient overvoltage control means (interfaces) areprovided.

IM 01C22H01-01E3-1

3. COMPONENT NAMES

3. COMPONENT NAMES

Transmitter section*

*See below for details.

Pressure-detector section

Cover flange

Diaphragm seal(high pressure side)

Diaphragm seal(low pressure side)Diaphragm Flange

Capillary tube

F0301.EPS

Figure 3.1.1 Component Names (Model EJA118W External View)

F0302.EPS

Transmitter section

Integralindicator (Note 1)

Mounting screw

Range-setting switch (Note 1)(See Subsection 6.5)Amplifier cover

Cover flange

Zero-adjustment screw

Conduit connection

Terminal box cover


Setting pin (CN4)position (Note 2)

Burn-outdirection

Output atburn-out

HLHL

HIGH

LOW

110% orhigher-5% or

lower (Note3)

External indicatorconduit connection (Note 1)

CPU assembly

Setting pin(CN4)

Note 1: Options depend on your order specifications. For details, see Subsection 9.2, Model and Suffix Codes.Note 2: Insert the pin (CN4) as shown in the above figure into the H or L side. The pin is set to the H side for delivery (unless

option code /C1 is otherwise specified in the order). The setting can be confirmed by calling up parameter D52 using the BRAIN TERMINAL. Refer to Subsection. 7.3.3 (11).

Note 3 : If optional code /F1 is specified, output signal is 2.5% or lower.

Display Symbol

%, Pa, kPa, MPa, kgf/cm2, gf/cm2, mbar, bar, atm, mmHg, mmH2O, inH2O, inHg, ftH2O, psi, Torr

Meaning of Display SymbolDisplay mode is square root. (Display is not lit when proportional mode.)The output signal being zero-adjusted is increasing.The output signal being zero-adjusted is decreasing.Select one of these sixteen available engineering units for the display.

T0301.EPS

Figure 3.1.2 Component Names (Transmitter Section Details)

IM 01C22H01-01E4-1

4. INSTALLATION

4. INSTALLATION

4.1 Precautions Before installing the transmitter, read the cautionary

notes in Section 2.4, Selecting the InstallationLocation. For additional information on theambient conditions allowed at the installationlocation, refer to Subsection 9.1 Standard Specifi-cations.

IMPORTANT

When welding piping during construction, takecare not to allow welding currents to flowthrough the transmitter.

Do not step on this instrument after installation.

4.2 Mounting the DiaphragmSeals

Mount the diaphragm seals using the flanges as shownin Figure 4.2.1. Figure 4.2.2 shows how to mount thediaphragm seals on a tank. The customer shouldprepare the mating flange, gasket, bolts and nuts.

NutFlangeDiaphragm

d

Gasket

F0401.EPS

Bolt

The product is shipped withthese parts assembled.

Correctly install the diaphragm seals onthe high and low pressure sides of theprocess, checking the label on each seal.

Figure 4.2.1 Mounting the Diaphragm Seals

IMPORTANT

Please use a gasket which has a bigger insidediameter than that of gasket facing (d) ondiaphragm seal. In case a gasket which has asmaller inside diameter than that of gasketfacing is used, it may cause an error as thegasket prevents diaphragm from working cor-rectly. (Refer to Subsection 9.4 Dimensions)

IMPORTANT

When measuring the liquid level of the tank,the minimum liquid level (zero point) must beset to a level at least 50 mm above the centerof the high pressure side diaphragm seal (seeFigure 4.2.2).

Correctly install the diaphragm seals on thehigh and low pressure sides of the process,checking the label on each seal.

To avoid measuring error duets temperaturedifference between the two diaphragm seals,capillary tube must be bound together. Thecapillary tube must be securely fixed to thetank wall to prevent movement by wind orvibration. If the capillary tube are too long,loosely coil the excess and secure usingsuitable clamps.

During the diaphragm seal installation, ensureas far as possible that no seal liquid head isapplied to the diaphragm seals.

Exercise care so as not to damage diaphragmsurfaces. Since the diaphragm protrudesapprox. 1mm from the flange surface, placingthe diaphragm seals with their diaphragmsurfaces facing downward may damage thediaphragm surfaces.

Do not sharply bend or twist capillary tube orapply excessive stress to them.

F0402.EPS

Low pressure side

Highpressureside 50mm minimum

Minimum liquid level

The transmitter should be installed as lowas possible below the position where thehigh pressure side diaphragm seal isinstalled.

IMPORTANTInstall the sealed diaphragm so that the shank positions downward.

Figure 4.2.2 Installing the Diaphragm Seals to a Tank

IM 01C22H01-01E4-2

4. INSTALLATION

4.3 Transmitter Mounting The transmitter can be mounted on a nominal 50

mm (2-inch) pipe using the mounting bracketsupplied, as shown in Figure 4.3.1. The transmittercan be mounted on either a horizontal or a verticalpipe.

When mounting the bracket on the transmitter,tighten the (four) bolts that hold the transmitter to atorque of approximately 39 Nm {4 kgfm}.

Horizontal pipe mounting

Vertical pipe mounting

Transmittermounting bolt

U-bolt nut

Mounting bracket

50mm (2-inch) pipeU-bolt

F0403.EPS

Figure 4.3.1 Transmitter Mounting

IMPORTANT

Never loosen the four screws securing the coverflange or the screws at the joints between thecapillary tube and cover flanges (if the seal liquidleaks, the transmitter cannot be used).

IMPORTANT

The transmitter should be installed at least 600mm below the high pressure (HP) processconnection to ensure a positive head pressure offill fluid. Pay special attention to vacuum applica-tions. If it can not be installed at least 600 mmbelow the HP process connection, please usethe equation below:

h= 7.5103 [mm](PP0)dHgds

h: Vertical height between the HP processconnection and the transmitter (mm)h0: Install the transmitter at least h (mm)

below the HP process connectionh>0: Install the transmitter at most h (mm)

above the HP process connectionP: Pressure in the tank (Pa abs)P0: Minimum working pressure limit of the

transmitter (Pa abs)If the ambient temperature range is10 to 50C.3178 (Wetted parts material code S)3596 (Wetted parts material code T)6074 (Wetted parts material code H)4711 (Wetted parts material code U)

ds: Specific gravity of fill fluid (at 25C), referto GS 01C22H01-00E.

dHg:Specific gravity of the Mercury 13.6(at 25C)

F0404.EPS

Ph

Low pressure side

0

Highpressureside

(+)

()

Figure 4.3.2 Example of Installation to Tank (Caution onInstallation)

IM 01C22H01-01E4-3

4. INSTALLATION

4.4 Affixing the Teflon FilmThe FEP Teflon option includes a teflon film andfluorinated oil.Before mounting the diaphragm seal to the processflange, affix the teflon film as follows:

IMPORTANT

(1) Position the diaphragm seal so that thediaphragm is in a upward position.

(2) Pour the fluorinated oil on the diaphragm andgasket area covering it completely andevenly. Be careful not to scratch the dia-phragm or change the its shape.

(3) Affix the teflon film over the diaphragm andgasket area.

(4) Next, carefully inspect the cover and try toidentify any entrapped air between thediaphragm and the teflon film. The air mustbe removed to ensure accuracy. If airpockets are present, use your fingers toremove the air by starting at the center of thediaphragm and work your way out.

(5) Place the gasket with the teflon film and affixto the process flange.

Teflon film

Diaphragm

Fluorinated oil[PART No.: F9145YN]

Gasket area

Diaphragm seal

PART No.F9347XAF9347YA

Process flange sizeFor 3inch (80 mm)For 2inch (50 mm)

F0405.EPS

Figure 4.4.1 Affixing the Teflon Film

4.5 Rotating Transmitter SectionThe DPharp transmitter section can be rotated in 90segments.

(1) Remove the two Allen screws that fasten thetransmitter section and pressure-detector section,using the Allen wrench supplied with the transmit-ter.

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

(3) Tighten the two Allen screws.

IMPORTANT

Do not rotate the transmitter section more than180.

F0406.EPS

Rotate 90 or 180 segments

Rotate 90 or 180 segments

Transmitter section


Conduit connectionZero-adjustment screw

Figure 4.5.1 Rotating Transmitter Section

IM 01C22H01-01E4-4

4. INSTALLATION

4.6 Changing the Direction ofIntegral Indicator

IMPORTANT

Always turn OFF power, release pressure andremove a transmitter to non-hazardous areabefore disassembling and reassmbling anindicator.

An integral indicator can be installed in the followingthree directions. Follow the instructions in section 8.4for removing and attaching the integral indicator.

F0407.EPS

Figure 4.6.1 Integral Indicator Direction

IM 01C22H01-01E5-1

5. WIRING

5. WIRING

5.1 Wiring Precautions

IMPORTANT

Lay wiring as far as possible from electricalnoise sources such as large capacity transform-ers, motors, and power supplies.

Remove electrical connection dust cap beforewiring.

All threaded parts must be treated with water-proofing sealant. (A non-hardening siliconegroup sealant is recommended.)

To prevent noise pickup, do not pass signaland power cables through the same ducts.

Explosion-protected instruments must be wiredin accordance with specific requirements (and,in certain countries, legal regulations) in orderto preserve the effectiveness of their explosion-protected features.

The terminal box cover is locked by an Allenhead bolt (a shrouding bolt) on CENELEC,IECEx, and TIIS flameproof type transmitters.When the shrouding bolt is driven clockwise byan Allen wrench, it is going in and cover lock isreleased, and then the cover can be opened.See Subsection 8.4 Disassembly and Reas-sembly for details.

Refer to The Installation and OperatingPrecautions for TIIS Flameproof Equipmentand Installation and Operating Precautionsfor TIIS Intrinsically Safe Equipment at theend of this manual for correct wiring.

5.2 Selecting the Wiring Materi-als

(a) Use stranded leadwires or cables which are thesame as or better than 600 V grade PVC insulatedwire (JIS C3307) or equivalent.

(b) Use shielded wires in areas that are susceptible toelectrical noise.

(c) In areas with higher or lower ambient temperatures,use appropriate wires or cables.

CAUTION

If the transmitter is flameproof and the ambienttemperature is 50C or more, use cables havinga maximum allowable heat resistance of at least75C in consideration of the instrument's genera-tion of heat or the cables' self-heating.

(d) In environment where oils, solvents, corrosive gasesor liquids may be present, use wires or cables thatare resistant to such substances.

(e) It is recommended that crimp-on solderless terminallugs (for 4 mm screws) with insulating sleeves beused for leadwire ends.

5.3 Connections of ExternalWiring to Terminal Box

5.3.1 Power Supply Wiring ConnectionConnect the power supply wiring to the SUPPLY +and terminals.

Power supply

+

Transmitter terminal box

F0501.EPS

Figure 5.3.1 Power Supply Wiring Connection

5.3.2 External Indicator ConnectionConnect wiring for external indicators to the CHECK +and terminals.(Note) Use a external indicator whose internal resistance is 10 or

less.


External indicator

F0502.EPS

Power supply

+

Figure 5.3.2 External Indicator Connection

IM 01C22H01-01E5-2

5. WIRING

5.3.3 BRAIN TERMINAL BT200 Connec-tion

Connect the BT200 to the SUPPLY + and terminals(Use hooks). The communication line requires areception resistor of 250 to 600 in series.


BT200F0503.EPS

Power supply

+

Ignore the polaritysince the BT200 isAC-coupled to theterminal box.

Figure 5.3.3 BT200 Connection

5.3.4 Check Meter ConnectionConnect 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 or less.

Transmitter terminal box F0504.EPS

Power supply

+

Check meter

Figure 5.3.4 Check Meter Connection

5.4 Wiring

CAUTION

For the intrinsically safe equipment and flame-proof equipment, wiring materials and wiringwork for these equipment including peripheralsare strictly restricted. Users absolutely must readInstallation and Operating Precautions for TIISIntrinsically Safe Equipment and Installationand Operating Precautions for TIIS FlameproofEquipment at the end of this manual prior to thework.

5.4.1 Loop ConfigurationSince the DPharp uses a two-wire transmission system,signal wiring is also used as power wiring.

DC power is required for the transmitter loop. Thetransmitter and distributor are connected as shownbelow.

For details of the power supply voltage and loadresistance, see Section 5.6; for communications linerequirements, see Subsection 7.1.2.

(1) General-use Type and Flameproof TypeHazardous Location Nonhazardous Location

Transmitter terminal box Distributor (Power supply unit)

Receiver instrument

F0605.EPS

+

Figure 5.4.1a Connection between Transmitter andDistributor

(2) Intrinsically Safe TypeFor intrinsically safe type, a safety barrier must beincluded in the loop.


Transmitter terminal boxDistributor (Power supply unit)

Receiver instrument

Safety barrier F0606.EPS

+

Figure 5.4.1b Connection between Transmitter andDistributor

IM 01C22H01-01E5-3

5. WIRING

5.4.2 Wiring Installation

(1) General-use Type and Intrinsically SafeType

Make cable wiring using metallic conduit or water-proof glands.

Apply a non-hardening sealant to the terminal boxconnection port and to the threads on the flexiblemetal conduit for waterproofing.

F0507.EPS

Flexible metal conduit

Wiring metalconduit

Tee

Drain plug

Apply a non-hardeningsealant to the threads forwaterproofing.

Figure 5.4.2a Typical Wiring Using Flexible Metal Conduit

(2) Flameproof Type (TIIS)Wire cables through a flameproof packing adapter, orusing a flameproof metal conduit.

Wiring cable through flameproof packing adapterfor only TIIS flameproof type (see Figure 5.4.2b). Use only flameproof packing adapters approved by

Yokogawa. Apply a nonhardening sealant to the terminal box

connection port and to the threads on the flameproofpacking adapter for waterproofing.

Flameproof packing adapter

Flexible metal conduit

Wiring metalconduit

Tee

Drain plug

Apply a non-hardeningsealant to the threads forwaterproofing.

F0508.EPS

Figure 5.4.2b Typical Cable Wiring Using FlameproofPacking Adapter

Measure the cable outer diameter in two directions towithin 1 mm.

Calculate the average of the two diameters, and usepacking with an internal diameter nearest to this value(see Table 5.4.2).

Table 5.4.2 Flameproof Packings and Applicable CableOuter Diameters

T0501.EPS

G9601AM8 to 1010.1 to 1216 8-1016 10-12G 1/2

G11G12

Optional Code

Wiring PortThread

Diameter

Applicable Cable OD

(mm)Identifying

MarkPart

Number

Mounting flameproof packing adapter body to conduitconnection (see Figure 5.4.2c)

1) Screw the flameproof packing adapter into theterminal box until the O-ring touches the wiringport (at least 6 full turns), and firmly tighten thelock nut.

2) Insert the cable through the union cover, the unioncoupling, the clamp nut, the clamp ring, the gland,the washer, the rubber packing, and the packingbox, in that order.

3) Insert the end of the cable into the terminal box.4) Tighten the union cover to grip the cable. When

tightening the union cover, tighten approximatelyone turn past the point where the cable will nolonger move up and down.Proper tightening is important. If it is too tight, acircuit break in the cable may occur; if not tightenough, the flameproof effectiveness will becompromised.

5) Fasten the cable by tightening the clamp nut.6) Tighten the lock nut on the union cover.7) Connect the cable wires to each terminal.

O-ringAdapter body

Lock nutWrench

Packing boxRubber packing

WasherGland

Clamp ring

Clamp nut

Union coupling

Lock nut

Wrench

Union cover

Cable

Apply a non-hardneningsealant to the threads forwaterproofing.

F0509.EPS

Figure 5.4.2c Installing Flameproof Packing Adapter

IM 01C22H01-01E5-4

5. WIRING

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 conduitand seal fitting for waterproofing.

F0510.EPS

Non-hazardous area

Hazardous areaFlameproofheavy-gaugesteel conduit

Tee

Drain plugSeal fitting

Gas sealing device

Flameproof flexiblemetal conduit

Apply a non-hardeningsealant to the threads ofthese fittings forwaterproofing

After wiring, impregnate the fittingwith a compound to seal tubing.

Figure 5.4.2d Typical Wiring Using Flameproof MetalConduit

5.5 GroundingGrounding is always required for the proper operationof transmitters. Follow the domestic electrical require-ments as regulated in each country. For a transmitterwith built-in lightning protector, grounding shouldsatisfy Class C requirements (ground resistance of 10or less).Ground terminals are located on the inside and outsideof the terminal box. Either of these terminals may beused.

WARNING

For TIIS flameproof type and intrinsically safe,grounding should satisfy Class D requirements(grounding resistance, 100 or less).

Ground terminal(Inside)

Ground terminal(Outside)


F0511.EPS

Figure 5.5 Ground Terminals

5.6 Power Supply Voltage andLoad Resistance

When configuring the loop, make sure that the externalload 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

250

0 10.5 16.4 24.7 42

External load

resistanceR ()

Power supply voltage E (V DC)F0512.EPS

Communication applicable range BRAIN and HART

R= E10.50.0236

Figure 5.6 Relationship between Power Supply Voltageand External Load Resistance

IM 01C22H01-01E6-1

6. OPERATION

6. OPERATION

6.1 Preparation for Starting Op-eration

The Model EJA118W, EJA118N and EJA118Ydiaphragm sealed differential pressure transmittermeasures the flow rates of liquids, gases, and steam,liquid levels, and liquid densities. This section de-scribes the operation procedure for the EJA118W asshown in Figure 6.1.1 when measuring liquid level in aclosed tank.

(a) Confirm that there is no leak in the connecting partof each diaphragm seal mounting flange.

(b) Turn ON power and connect the BT200.Open the terminal box cover and connect theBT200 to the SUPPLY + and terminals.

(c) Using the BT200, confirm that the transmitter isoperating properly. Check parameter values orchange the setpoints as necessary.For BT200 operating procedures, see Chapter 7. Ifthe transmitter is equipped with an integralindicator, its indication can be used to confirm thatthe transmitter is operating properly.

Closed tank

F0601.EPS

Transmitter mounting pipe50mm (2 inches)

Capillary tube

Diaphragm seal(high pressure side)

Diaphragm seal(low pressure side)

Figure 6.1.1 Liquid Level Measurement in a Closed Tank

Confirming that Transmitter is OperatingProperly

Confirmation 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.

Communication error (Faulty wiring)

Self-diagnostic error(Faulty transmitter)

communication error

PARAM C60:SELF CHECK ERROR

DATA DIAG PRNT ESC

F0602.EPS

Confirmation using the integral indicator If the wiring system is faulty, the display is blank. If the transmitter is faulty, an error number will

appear on the display according to the nature of theerror.

Self-diagnostic error(Faulty transmitter)

F0603.EPS

NOTE

If any of the error indications above appears onthe display of the integral indicator or BT200,refer to Subsection 7.5.2 for corrective action.

Verify and Change Transmitter ParameterSetting and Values

The following parameters are the minimum settingsrequired for operation. The transmitter has beenshipped with these parameters. To confirm or changethe values, see Subsection 7.3.3.

Measuring range ....... See Subsection 7.3.3 (2) Output/integral indicator mode .........

See Subsection 7.3.3 (4) Operation mode ......... See Subsection 7.3.3 (9)

IM 01C22H01-01E6-2

6. OPERATION

6.2 Zero Point AdjustmentAdjust the zero point after operating preparation iscompleted.

IMPORTANT

Do not turn off the power to the transmitterimmediately after a zero adjustment. Poweringoff within 30 seconds after a zero adjustment willreturn the adjustment back to the previoussettings.

The zero point adjustment can be made in either way:using the zero-adjustment screw of the transmitter orthe BT200 operation.

For output signal checking, display the parameter A10:OUTPUT (%) in the BT200.

Output signal (%)display

PARAM A10:OUTPUT(%) 0.0 % A11:ENGR OUTPUT

A20:AMP TEMP

DATA DIAG PRNT ESC

F0604.EPS

Zero-adjustmentscrew

BT200

Zero-adjustment Screw

When adjusting the transmitter zero point, the liquidlevel in a tank does not have to be set to the low limit(0%) of the measuring range. In such case, match thetransmitter output signal with the actual measuredvalue using a glass gauge, for example.

6.2.1 When you can obtain Low RangeValue from actual measured valueof 0% (0 kPa, atmospheric pres-sure);

Using the Transmitter Zero-adjustmentScrew

Before adjusting a screw, check that the parameterJ20: EXT ZERO ADJ displays ENABLE. SeeSubsection 7.3.3 (12) for the setting procedure.Use a slotted screwdriver to turn the zero-adjustmentscrew. Turn the screw clockwise to increase the outputor counterclockwise to decrease the output. The zeropoint adjustment can be made with a resolution of0.01% of the setting range. Since the degree of zeroadjustments varies with the screw turning speed, turnthe screw slowly for fine adjustment and quickly forcoarse adjustment.

Using the BT200Zero point can be adjusted by simple key operation ofthe BT200.

Select parameter J10: ZERO ADJ, and press theENTER key twice. The zero point will be adjustedautomatically to the output signal 0% (4 mA DC).Confirm that the setting value displayed for theparameter is 0.0% before pressing the ENTER key.See Subsection 7.3.3 (12) for BT200 operating proce-dures.

A display when parameter J10 is selected.Press key twice for 0% output 4 mA DC.

SET J10:ZERO ADJ 0.0 % + 000.0

CLR ESC

F0605.EPS

6.2.2 When you cannot obtain Low RangeValue from actual measured valueof 0%;

Convert the actual measured value obtained by a glassgauge into %.

[Example]The measuring range of 0 to 2 m and the actualmeasured value of 0.8 m.

0.82

Actual measured value= x 100=40.0%

IM 01C22H01-01E6-3

6. OPERATION

Using the Transmitter Zero-AdjustmentScrew

Turn the screw to match the output signal to the actualmeasured value in %.

Using the BT200Select the parameter J10: ZERO ADJ. Change theset point (%) displayed for the parameter to the actualmeasured value (%), and press the ENTER key twice.See Subsection 7.3.3 (12) for operation details.

Change setting to the actuallymeasured value (40.0%).Press key twicefor 40% output 10.4 mA DC.

SET J10:ZERO ADJ 0.0 % + 040.0

CLR ESCF0606.EPS

A display at J10SET J10:ZERO ADJ 0.0 % + 000.0

CLR ESC

6.3 Starting OperationAfter completing the zero point adjustment, use theprocedure below to start operation.

1) Confirm the operating status.There will be cases in which the output signalexhibits wide fluctuations (hunting) due to periodicvariation in the process pressure. In such cases,BT200 operation can dampen the transmitteroutput signal. Confirm the hunting using a receiv-ing instrument or the integral indicator, and set theoptimum damping time constant. See Subsection7.3.3 (3), Damping Time Constant Setup.

2) After confirming the operating status, perform thefollowing.

IMPORTANT

Remove the BT200 from the terminal box, andconfirm that none of the terminal screws areloosened.

Close the terminal box cover and the amplifiercover. Screw each cover in tightly until it willnot turn further.

Two covers are required to be locked on theCENELEC, IECEx, and TIIS Flameproof typetransmitters. An Allen head bolts (shroudingbolts) are provided under edge of the eachcover for locking. When a shrouding bolts aredriven counterclockwise by an Allen wrench, itis coming out and locks up a cover. (See page8-4)After locking, the covers shoud be confirmednot to be opened.

Tighten the zero-adjustment cover mountingscrew to fix the cover in position.

6.4 Shutting Down OperationTurn off the power.

NOTE

Whenever shutting down the transmitter for along period, detach the transmitter (diaphragmseals) from the tank.

IM 01C22H01-01E6-4

6. OPERATION

6.5 Setting the Range Using theRange-setting Switch

With actual pressure being applied to the transmitter,the range-setting switch (push-button) located on theoptional integral indicator plate and the external zero-adjustment screw allow users to change (re-range) thelow- and high-limit values for the measurement range(LRV and HRV) without using BT200. However, otherchanges in the display settings (scale range andengineering unit) for the integral indicator requiresBT200.

Follow the procedure below to change the LRV andHRV settings.

[Example]Rerange LRV to 0 and HRV to 3 MPa.

1) Connect the transmitter and apparatus as shown inFigure 8.3.1 and warm up for at least five minutes.

2) Press the range-setting push-button.The integral indicator then displays LSET.

3) Apply a pressure of 0 kPa (atmospheric pressure) tothe transmitter. (Note 1)

4) Turn the external zero-adjustment screw in thedesired direction. The integral indicator displays theoutput signal in %. (Note 2)

5) Adjust the output signal to 0% (1 V DC) by rotatingthe external zero-adjustment screw. Doing socompletes the LRV setting.

6) Press the range-setting push-button. The integralindicator then displays HSET.

7) Apply a pressure of 3 MPa to the transmitter. (Note 1)8) Turn the external zero-adjustment screw in the

desired direction. The integral indicator displays theoutput signal in %. (Note 2)

9) Adjust the output signal to 100% (5 V DC) byrotating the external zero-adjustment screw. Doingso completes the HRV setting.

10) Press the range-setting push-button. The transmitterthen switches back to the normal operation modewith the measurement range of 0 to 3 MPa.

Note 1: Wait until the pressure inside the pressure-detector sectionhas stabilized before proceeding to the next step.

Note 2: If the pressure applied to the transmitter exceeds the previousLRV (or HRV), the integral indicator may display errornumber Er.07 (In this case, the output signal percent andEr.07 are displayed alternately every two seconds).Although Er.07 is displayed, you may proceed to the nextstep. However, should any other error number be displayed,take the appropriate measure in reference to Subsection 7.5.2,Errors and Countermeasures.

IMPORTANT

Do not turn off the power to the transmitterimmediately after completion of the change inthe LRV (and/or HRV) setting(s). Note thatpowering off within thirty seconds after settingwill cause a return to the previous settings.

Changing LRV a utomatically changes HRV tothe following value.

HRV = previous HRV + (new LRV previous LRV) If the range-setting push-button and external

zero-adjustment screw are not touched during arange-change operation, the transmitter auto-matically switches back to the normal operationmode.

F0607.EPS

Integral indicator

Range-setting switch(Push-button)

Note : Use a thin bar which has a blunt tip, e.g., a hexagonal wrench, to press the range-setting push-button

Figure 6.5.1 Range-setting Switch

IM 01C22H01-01E7-1

7. BRAIN TERMINAL BT200 OPERATION

7. BRAIN TERMINAL BT200OPERATION

IM01C22H01-01EN_017

Documents

s2im 01c22h01

csa certification

iecex certification

tiis certification

pressure connection

installation of explosion

installation location

diaphragm seals