Yokogawa EJA438 - Manual (Page 3)

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CONTENTS
IM 1C22J1-01E FD No. IM 1C22J1-01E
10th Edition: Feb. 2000(YK)
All Rights Reserved, Copyright © 1995, Yokogawa Electric Corporation
CONTENTS
1. INTRODUCTION ............................................................................................ 1-1
WARRANTY .................................................................................................. 1-2
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 ...................................................... 2-1
2.5 Pressure Connection ........................................................................... 2-2
2.6 Waterproofing of Cable Conduit Connections .................................... 2-2
2.7 Restrictions on Use of Radio Transceiver .......................................... 2-2
2.8 Insulation Resistance and Dielectric Strength Test ............................ 2-2
2.9 Installation of Explosion Protected Type ............................................ 2-3
2.9.1 FM Approval ................................................................................. 2-3
2.9.2 CSA Certification .......................................................................... 2-4
2.9.3 SAA Certification .......................................................................... 2-6
2.9.4 CENELEC (KEMA)/IEC (KEMA) Certification .............................. 2-7
2.9.5 JIS Certification ............................................................................ 2-8
2.10 EMC Conformity Standards ................................................................ 2-9
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 .......................................................................... 4-1
4.4 Affixing the Teflon Film ....................................................................... 4-3
4.5 Rotating Transmitter Section .............................................................. 4-3
5. WIRING .......................................................................................................... 5-1
5.1 Wiring Precautions .............................................................................. 5-1
5.2 Selecting the Wiring Materials ............................................................ 5-1
5.3 Connections of External Wiring to Terminal Box ................................ 5-1
5.3.1 Power Supply Wiring Connection ................................................ 5-1
5.3.2 External Indicator Connection ...................................................... 5-1
5.3.3 BRAIN TERMINAL BT200 Connection ........................................ 5-2
5.3.4 Check Meter Connection .............................................................. 5-2
5.4 Wiring .................................................................................................. 5-2
5.4.1 Loop Configuration ....................................................................... 5-2
(1) General-use Type and Flameproof Type ...................................... 5-2
(2) Intrinsically Safe Type ................................................................... 5-2
5.4.2 Wiring Installation ......................................................................... 5-3
(1) General-use Type and Intrinsically Safe Type .............................. 5-3
(2) Flameproof Type (JIS) .................................................................. 5-3
5.5 Grounding ............................................................................................ 5-4
5.6 Power Supply Voltage and Load Resistance ..................................... 5-4