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Yokogawa EJX930A User Manual

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IM 01C25R01-01E

EJX910A and EJX930A

Multivariable Transmitters

IM 01C25R01-01E 12th Edition

12th Edition: Nov. 2013 (KP)
All Rights Reserved, Copyright © 2005, Yokogawa Electric Corporation

Contents

1.

Introduction ............................................................................................... 1-1

Regarding This Manual ................................................................................................1-2

1.1

Safe Use of This Product .................................................................................1-2

1.2

Warranty .............................................................................................................1-3

1.3

ATEX Documentation .......................................................................................1-4

2.

About the EJX Multivariable Transmitter ............................................... 2-1

2.1

Features .............................................................................................................2-1

2.2

Initial Check and Installation Procedure ........................................................2-1

2.3

Flow Calculation (except Modbus Communication Type) ...........................2-3

2.4

Auto Compensation Mode (except Modbus Communication Type) ...........2-3
2.4.1

Configuration Procedure for Auto Compensation Mode ...................2-4

2.5

Basic Mode (except Modbus Communication Type) ....................................2-4
2.5.1

Configuration Procedure for Basic Mode ..........................................2-6

2.5.2

Calculation of the Basic mode parameters ........................................2-6

3.

Handling Cautions .................................................................................... 3-1

3.1

Model and Specifications Check .....................................................................3-1

3.2

Unpacking ..........................................................................................................3-1

3.3

Storage ...............................................................................................................3-1

3.4

Selecting the Installation Location ................................................................3-2

3.5

Pressure Connection ........................................................................................3-2

3.6

Waterproofing of Cable Conduit Connections ..............................................3-2

3.7

Restrictions on Use of Radio Transceivers ...................................................3-2

3.8

Insulation Resistance and Dielectric Strength Test ......................................3-3

3.9

Installation of an Explosion-Protected Instrument .......................................3-3
3.9.1

FM Approval .......................................................................................3-4

3.9.2

CSA Certification ................................................................................3-4

3.9.3

ATEX Certification ..............................................................................3-6

3.9.4

IECEx Certification ...........................................................................3-10

3.10

EMC Conformity Standards ...........................................................................3-10

3.11

Pressure Equipment Directive (PED) ........................................................... 3-11

3.12

Low Voltage Directive ..................................................................................... 3-11

4.

Component Names .................................................................................. 4-1

This manual is related to the following products: