Yokogawa EJX118A - Manual (Page 2)

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IM 01C25H01-01E
Diaphragm Sealed Differential Pressure and
Pressure Transmitters
EJ118 and EJ438
IM 01C25H01-01E 9th Edition
9th Edition: June 2013 (YK)
All Rights Reserved, Copyright © 2004, Yokogawa Electric Corporation
Contents
1. Introduction ............................................................................................... 1-1
 Regarding This Manual ................................................................................................1-1
1.1 Safe Use of This Product .................................................................................1-2
1.2 Warranty .............................................................................................................1-3
1.3 ATEX Documentation .......................................................................................1-4
2. Handling Cautions .................................................................................... 2-1
2.1 Model and Specifications 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 Waterproofing of Cable Conduit Connections ..............................................2-2
2.7 Restrictions on Use of Radio Transceivers ...................................................2-2
2.8 Insulation Resistance and Dielectric Strength Test ......................................2-2
2.9 Installation of an Explosion-Protected Instrument .......................................2-3
2.9.1
FM Approval .......................................................................................2-4
2.9.2 CSA Certification ................................................................................2-6
2.9.3 ATEX Certification ..............................................................................2-8
2.9.4 IECEx Certification ........................................................................... 2-11
2.10 EMC Conformity Standards ...........................................................................2-12
2.11 Pressure Equipment Directive (PED) ...........................................................2-13
2.12 Low Voltage Directive .....................................................................................2-13
3. Component Names .................................................................................. 3-1
4. Installation ................................................................................................. 4-1
4.1 Precautions .......................................................................................................4-1
4.2 Mounting the Diaphragm Seals .......................................................................4-1
4.3 Transmitter Mounting .......................................................................................4-2
4.4 Mounting the Flushing Connection Ring .......................................................4-4
4.4.1
Mounting to Pressure Detector Section .............................................4-4
4.4.2 Mounting to Process Flange ..............................................................4-4