Yokogawa EJA118 User Manual
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CONTENTS
IM 1C22H1-01E
FD No. IM 1C22H1-01E
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 ...................................................... 2-2
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 ............................ 2-3
2.9
Installation of Explosion Protected Type ............................................ 2-3
2.9.1
FM Approval ................................................................................. 2-3
2.9.2
CSA Certification .......................................................................... 2-5
2.9.3
SAA Certification .......................................................................... 2-6
2.9.4
CENELEC (KEMA)/IEC (KEMA) Certification .............................. 2-7
2.9.5
JIS Certification ............................................................................ 2-9
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 .......................................................................... 4-2
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