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User’s

Manual

Contents

1. Introduction

1.1 ForSafeUseofProduct..............................................2

1.2 Warranty......................................................................3

1.3 ATEXDocumentation..................................................4

2. HandlingCautions

2.1 ModelandSpecicationsCheck.................................6

2.2 SelectingtheInstallationLocation..............................6

2.3 PressureConnection..................................................6

2.4 InstallationofanExplosion-ProtectedInstrument......6

2.5 EMCConformityStandards..................................... 15

2.6 PressureEquipmentDirective(PED)...................... 16

2.7 LowVoltageDirective............................................... 17

3. Installation

3.1 Mounting................................................................... 18

3.2

MountingtheDiaphragmSeals......................................18

3.3 DiaphragmSealsInstallationConsideration............ 19

3.4 MountingtheFlushingConnectionRing.................. 20

3.5 AfxingtheTeonFilm............................................. 21

3.6 RotatingTransmitterSection.................................... 22

3.7 ChangingtheDirectionofIntegralIndicator............. 22

4. InstallingImpulsePiping

4.1 ImpulsePipingInstallationPrecautions................... 23

4.2 ImpulsePipingConnectionExamples..................... 25

4.3 ProcessPipingInstallationPrecautions(EJ115)26

5. Wiring

5.1 WiringPrecautions................................................... 28

5.2 ConnectionsofExternalWiringtoTerminalBox...... 28

5.3 Wiring....................................................................... 30

5.4 RTDCableConnection(EJX910A/EJX930A)......... 31

5.5 Grounding................................................................ 34

5.6 PowerSupplyVoltageandLoadResistance........... 34

6. Operation

6.1 PreparationforStartingOperation........................... 35

6.2 ZeroPointAdjustment.............................................. 36

7. ErrorsandCountermeasures

8. ParameterSummary

EJXandEJA-ESeries

DifferentialPressureand

PressureTransmitters

InstallationManual

IM01C25A01-01E

7thEdition

CD-ROMincluded

Brand	YOKOGAWA
Model	EJX Series
Category	Transmitter
Language	English

YOKOGAWA EJX Series User Manual

Table of Contents

Questions and Answers:

YOKOGAWA EJX Series Specifications

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