Yokogawa EJA438 User Manual

InstructionManualYokogawa Electric CorporationModel EJA438W and EJA438NDiaphragm Sealed GaugePressure Transmitters[Style: S2]IM 1C22J1-01EIM 1C22J1-01

IM 1C22J1-01E2-22. HANDLING CAUTIONS(b) Ambient AtmosphereAvoid installing the transmitter in a corrosiveatmosphere. If the transmitter must be insta

IM 1C22J1-01E2-32. HANDLING CAUTIONS4) After completing the test and being very careful notto touch exposed conductors disconnect theinsulation teste

IM 1C22J1-01E2-42. HANDLING CAUTIONS• Dust-tight conduit seal must be used when installedin a Class II, III, Group E, F and G environments.• Associat

IM 1C22J1-01E2-52. HANDLING CAUTIONS• Intrinsically Safe for Class I, Division 1, Groups A,B, C & D. Class II, Division 1, Groups E, F & Gand

IM 1C22J1-01E2-62. HANDLING CAUTIONSNon-hazardous Location Equipment42 V DC Max. 4 to 20 mA DC SignalNon-Hazardous LocationsHazardous Locations Divis

IM 1C22J1-01E2-72. HANDLING CAUTIONS• Supply voltage: 42 V dc max.• Output Signal: 4 to 20 mA• Ambient Temperature: –40 to 80°CNote 2. Wiring• All w

IM 1C22J1-01E2-82. HANDLING CAUTIONSc. IEC (KEMA) Type of Protection “n”Caution for IEC (KEMA) Type of Protection “n.”Note 1. Model EJA Series press

IM 1C22J1-01E2-92. HANDLING CAUTIONS2.10 EMC Conformity StandardsFor EMI (Emission): EN55011, AS/NZS 2064 1/2For EMS (Immunity): EN50082–2NOTEYOKOGAW

IM 1C22J1-01E3-13. COMPONENT NAMES3. COMPONENT NAMESTransmitter section**See below for details.Pressure-detector sectionCover flangeDiaphragm sealDia

IM 1C22J1-01E4-14. INSTALLATION4. INSTALLATION4.1 Precautionsj Before installing the transmitter, read the cautionarynotes in Section 2.4, “Selecting

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IM 1C22J1-01E4-24. INSTALLATIONHorizontal pipe mountingVertical pipe mountingTransmittermounting boltU-bolt nutMounting bracket50mm (2-inch) pipeU-bo

IM 1C22J1-01E4-34. INSTALLATION4.4 Affixing the Teflon FilmThe FEP Teflon option includes a teflon film andfluorinated oil.Before mounting the diaphr

IM 1C22J1-01E5-15. WIRING5. WIRING5.1 Wiring PrecautionsIMPORTANT• Lay wiring as far as possible from electricalnoise sources such as large capacity

IM 1C22J1-01E5-25. WIRING5.3.3 BRAIN TERMINAL BT200 Connec-tionConnect the BT200 to the SUPPLY + and – terminals(Use hooks).Transmitter terminal boxB

IM 1C22J1-01E5-35. WIRING5.4.2 Wiring Installation(1) General-use Type and Intrinsically SafeTypeMake cable wiring using metallic conduit or water-pr

IM 1C22J1-01E5-45. WIRINGj Flameproof metal conduit wiring• A seal fitting must be installed near the terminal boxconnection port for a sealed constr

IM 1C22J1-01E6-16. OPERATION6. OPERATION6.1 Preparation for Starting Op-erationThe Model EJA438W and EJA438N diaphragm sealedgauge pressure transmitt

IM 1C22J1-01E6-26. OPERATION6.2 Zero Point AdjustmentAdjust the zero point after operating preparation iscompleted.IMPORTANTDo not turn off the power

IM 1C22J1-01E6-36. OPERATION6.2.2 When you cannot obtain Low RangeValue from actual measured valueof 0%;Convert the actual measured value obtained b

IM 1C22J1-01E6-46. OPERATION6.5 Setting the Range Using theRange-setting SwitchWith actual pressure being applied to the transmitter,the range-settin

iCONTENTSIM 1C22J1-01EFD No. IM 1C22J1-01E10th Edition: Feb. 2000(YK)All Rights Reserved, Copyright © 1995, Yokogawa Electric CorporationCONTENTS1. IN

IM 1C22J1-01E7-17. BRAIN TERMINAL BT200 OPERATION7. BRAIN TERMINAL BT200OPERATIONThe DPharp is equipped with BRAIN communica-tions capabilities, so t

IM 1C22J1-01E7-27. BRAIN TERMINAL BT200 OPERATION7.2.2 Operating Key Functions(1) Alphanumeric Keys and Shift KeysYou can use the alphanumeric keys i

IM 1C22J1-01E7-37. BRAIN TERMINAL BT200 OPERATION7.2.3 Calling Up Menu Addresses Using the Operating KeysDATA DIAG PRNT ESCPARAM A60:SELF CHECK

IM 1C22J1-01E7-47. BRAIN TERMINAL BT200 OPERATION7.3 Setting Parameters Using the BT2007.3.1 Parameter SummaryInstruments to which applicable:F: Diff

IM 1C22J1-01E7-57. BRAIN TERMINAL BT200 OPERATIONT0706.EPSAuxiliary setting data 1D Menu nameAUX SET 1—NORMAL/REVERSENORMAL/REVERSE**Output reversalD

IM 1C22J1-01E7-67. BRAIN TERMINAL BT200 OPERATION7.3.2 Parameter Usage and SelectionBefore describing the procedure for setting param-eters, we prese

IM 1C22J1-01E7-77. BRAIN TERMINAL BT200 OPERATION7.3.3 Setting ParametersSet or change the parameters as necessary. Aftercompleting these, do not fai

IM 1C22J1-01E7-87. BRAIN TERMINAL BT200 OPERATIONb. Setting Calibration Range LowerRange Value and Higher Range Value(C21: LOW RANGE, C22: HIGHRANGE)

IM 1C22J1-01E7-97. BRAIN TERMINAL BT200 OPERATION(4) Output Signal Low Cut Mode Setup(D10: LOW CUT, D11: LOW CUT MODE)Low cut mode can be used to sta

IM 1C22J1-01E7-107. BRAIN TERMINAL BT200 OPERATION% indication and input pressure indicationTransmitter is set for “% display” when shipped.D20: DISP

iiCONTENTSIM 1C22J1-01E6. OPERATION... 6-16.1 Preparati

IM 1C22J1-01E7-117. BRAIN TERMINAL BT200 OPERATION(6) Unit Setup for Displayed Temperature(D30: TEMP UNIT)When the instrument is shipped, the tempera

IM 1C22J1-01E7-127. BRAIN TERMINAL BT200 OPERATION(10) Range Change while Applying ActualInputs (H10: AUTO LRV, H11: AUTOHRV)This feature allows the

IM 1C22J1-01E7-137. BRAIN TERMINAL BT200 OPERATION(a) Follow the procedure below when setting thepresent output to 0% (4 mA).FEED NO OKSET J10:ZERO A

IM 1C22J1-01E7-147. BRAIN TERMINAL BT200 OPERATION(12) Test Output Setup (K10: OUTPUT X%)This feature can be used to output a fixed currentfrom 3.2 m

IM 1C22J1-01E7-157. BRAIN TERMINAL BT200 OPERATION7.5 Self-Diagnostics7.5.1 Checking for Problems(1) Identifying Problems with BT200The following fou

IM 1C22J1-01E7-167. BRAIN TERMINAL BT200 OPERATION(2) Checking with Integral IndicatorNOTEIf an error is detected in the self-diagnostic, anerror num

IM 1C22J1-01E7-177. BRAIN TERMINAL BT200 OPERATION7.5.2 Errors and CountermeasuresThe table below shows a summary of error messages.Table 7.5.1 Error

IM 1C22J1-01E8-18. MAINTENANCE8. MAINTENANCE8.1 OverviewWARNINGSince the accumulated process fluid may betoxic or otherwise harmful, take appropriate

IM 1C22J1-01E8-28. MAINTENANCETable 8.2.1 Tools for Disassembly and ReassemblyName RemarksYokogawa-recommended InstrumentPower supplyModel SDBT or SD

IM 1C22J1-01E8-38. MAINTENANCE8.4 Disassembly and Reassem-blyThis section describes procedures for disassembly andreassembly for maintenance and comp

iiiCONTENTSIM 1C22J1-01E8.4 Disassembly and Reassembly ... 8-38.4.1 Replacing the Integral In

IM 1C22J1-01E8-48. MAINTENANCE8.4.2 Replacing the CPU AssemblyThis subsection describes the procedure for replacingthe CPU assembly. (See Figure 8.4.

IM 1C22J1-01E8-58. MAINTENANCE8.5 TroubleshootingIf any abnormality appears in the measured values, usethe troubleshooting flow chart below to isolat

IM 1C22J1-01E8-68. MAINTENANCEConnect BRAIN TERMINAL and check self-diagnostics.Does the self-diagnostic indicate problemlocation?Contact Yokogawa se

IM 1C22J1-01E9-19. GENERAL SPECIFICATIONS9. GENERAL SPECIFICATIONS9.1 Standard SpecificationsRefer to GS 1C22T2-E for Fieldbus communica-tion type ma

IM 1C22J1-01E9-29. GENERAL SPECIFICATIONSd Physical SpecificationsWetted Parts Materials:Diaphragm and other wetted parts;See ‘Model and Suffix Codes

IM 1C22J1-01E9-39. GENERAL SPECIFICATIONS9.2 Model and Suffix Codesd Model EJA438W [Style: S2]. . . . . . . . . . . . . . . . . . . . . . . . . . . .

IM 1C22J1-01E9-49. GENERAL SPECIFICATIONSd Model EJA438N [Style: S2]. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-D . . . . . .

IM 1C22J1-01E9-59. GENERAL SPECIFICATIONS9.3 Optional SpecificationsItem Description CodeFactory Mutual (FM)CSA Explosionproof ApprovalExplosionproof

IM 1C22J1-01E9-69. GENERAL SPECIFICATIONSItem Description CodeT0907.EPSGold-plated diaphragmTTeflon film (Note 2)With FEP film and fluorinated oilWor

IM 1C22J1-01E9-79. GENERAL SPECIFICATIONS9.4 Dimensionsd Model EJA438W [Style: S2]34(1.34)Wetted parts materialcode U (Titanium)333(13.11)140(5.51)94

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IM 1C22J1-01E9-89. GENERAL SPECIFICATIONSd Model EJA438N [Style: S2]øDøAøgøCn-øhtX2fø30(1.18) 120(4.72)14 (0.55) 333(13.11)140(5.51)94(3.70)197(7.76)

CustomerMaintenanceParts ListAll Rights Reserved, Copyright © 1995, Yokogawa Electric Corporation.Yokogawa Electric CorporationCMPL 1C22A1-02E6th Edit

2CMPL 1C22A1-01ESubject to change without notice. Printed in Japan.Blank Page

CustomerMaintenanceParts ListAll Rights Reserved, Copyright © 1995, Yokogawa Electric Corporation.Yokogawa Electric CorporationCMPL 1C22J3-01E3rd Edit

2CMPL 1C22J3-01EOct. 1999Subject to change without notice. Printed in Japan.S25C Carbon SteelSUS304 Stainless Steel50 mm JIS 10K50 mm JIS 20K50 mm JI

EX-A03E1INSTALLATION AND OPERATING PRECAUTIONS FOR JIS INTRINSICALLY SAFE EQUIPMENTINSTALLATION AND OPERATING PRECAUTIONS FORJIS INTRINSICALLY SAFE EQ

EX-A03E2INSTALLATION AND OPERATING PRECAUTIONS FOR JIS INTRINSICALLY SAFE EQUIPMENT— when up to two countable faults are applied and, inaddition,— whe

EX-A03E3INSTALLATION AND OPERATING PRECAUTIONS FOR JIS INTRINSICALLY SAFE EQUIPMENTintrinsically safe apparatus may be used at an ambienttemperature u

EX-B03E1INSTALLATION AND OPERATING PRECAUTIONS FOR JIS FLAMEPROOF EQUIPMENTINSTALLATION AND OPERATING PRECAUTIONS FORJIS FLAMEPROOF EQUIPMENTApparatus

EX-B03E2INSTALLATION AND OPERATING PRECAUTIONS FOR JIS FLAMEPROOF EQUIPMENT4. Installation of FlameproofApparatus(1) Installation AreaFlameproof appar

IM 1C22J1-01E1-11. INTRODUCTION1. INTRODUCTIONThank you for purchasing the DPharp electronicpressure transmitter.The DPharp Pressure Transmitters are

EX-B03E3INSTALLATION AND OPERATING PRECAUTIONS FOR JIS FLAMEPROOF EQUIPMENT6. Maintenance of FlameproofApparatusTo maintain the flameproof apparatus,

IM 1C22J1-01EREVISION RECORDTitle: Model EJA438W and EJA438N Diaphragm Sealed Gauge PressureTransmitterManual No.: IM 1C22J1-01EEdition Date Page Revi

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IM 1C22J1-01E1-21. INTRODUCTIONWARRANTY• The warranty shall cover the period noted on thequotation presented to the purchaser at the time ofpurchase.

IM 1C22J1-01E2-12. HANDLING CAUTIONS2. HANDLING CAUTIONSThis chapter describes important cautions regardinghow to handle the transmitter. Read carefu