YOKOGAWA DP harp EJX Series - Default Chapter; Table of Contents

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IM 01C25B01-01E
Di󰀨erential Pressure and Pressure Transmitters
EJ

110

, EJ

120

, EJ

130

,
EJ

310

, EJ

430

, and EJ

440

IM 01C25B01-01E 21st Edition
21st Edition: Nov. 2019 (YK)
All Rights Reserved, Copyright © 2004, Yokogawa Electric Corporation
Contents
1. Introduction ............................................................................................... 1-1
 Regarding This Manual ................................................................................................ 1-2
 Trademarks ................................................................................................................... 1-2
1.1 Safe Use of This Product ................................................................................. 1-3
1.2 Warranty .............................................................................................................1-5
2. Handling Cautions .................................................................................... 2-1
2.1 Model and Specications Check ..................................................................... 2-1
2.2 Unpacking .......................................................................................................... 2-1
2.3 Storage ............................................................................................................... 2-1
2.4 Selecting the Installation Location ................................................................ 2-2
2.5 Pressure Connection ........................................................................................ 2-2
2.6 Waterproong of Cable Conduit Connections .............................................. 2-2
2.7 Restrictions on Use of Radio Transceivers ................................................... 2-2
2.8 Insulation Resistance and Dielectric Strength Test ...................................... 2-3
2.9 Installation of an Explosion-Protected Instrument ....................................... 2-3
2.9.1 FM Approval ....................................................................................... 2-4
2.9.2 CSACertication ................................................................................2-6
2.9.3 ATEXCertication ..............................................................................2-8
2.9.4 IECExCertication ...........................................................................2-13
2.10 EMC Conformity Standards ........................................................................... 2-15
2.11 Pressure Equipment Directive (PED) ........................................................... 2-15
2.12 EU RoHS Directive .......................................................................................... 2-16
2.13 Safety Requirement Standards ..................................................................... 2-16
3. Component Names .................................................................................. 3-1
4. Installation ................................................................................................. 4-1
4.1 Precautions ....................................................................................................... 4-1
4.2 Mounting ........................................................................................................... 4-1
4.3 Changing the Process Connection ................................................................. 4-2
4.4 Swapping the High/Low-pressure Side Connection ..................................... 4-3
4.4.1 Rotating Pressure-detector Section 180° ......................................... 4-3
4.4.2 Using the Communicator ................................................................... 4-3
4.5 Rotating Transmitter Section ........................................................................... 4-4
4.6 Changing the Direction of Integral Indicator ................................................. 4-4