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 Conguration Procedure for Auto Compensation Mode ...................2-4
2.5 Basic Mode (except Modbus Communication Type) ....................................2-4
2.5.1 Conguration 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 Specications 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 Waterproong 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 Certication ................................................................................3-4
3.9.3 ATEX Certication ..............................................................................3-6
3.9.4 IECEx Certication ...........................................................................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