Table of Contents
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1.
INTRODUCTION
This manual contains a description of the DPharp EJA
Series Differential Pressure/Pressure Transmitter
Fieldbus Communication Type. The Fieldbus commu-
nication type is based on the same silicon resonant
sensing features as that of the BRAIN communication
type, which is employed as the measurement principle,
and is similar to the BRAIN communication type in
terms of basic performance and operation. This manual
describes only those topics that are required for
operation of the Fieldbus communication type and that
are not contained in the BRAIN communication type
instruction manual. Refer to each of the following
instruction manuals for topics common to the BRAIN
communication and Fieldbus communication types.
Table 1.1 List of Individual User's Manuals
EJA110A, EJA120A, EJA130A
EJA210A, EJA220A
EJA310A, EJA430A, EJA440A
EJA510A, EJA530A
EJA118W, EJA118N, EJA118Y
EJA438W, EJA438N
EJA115
Regarding This Manual
• This manual should be passed on to the end user.
• The contents of this manual are subject to change
without prior notice.
• All rights reserved. No part of this manual may be
reproduced in any form without Yokogawa's written
permission.
• Yokogawa makes no warranty of any kind with
regard to this manual, including, but not limited to,
implied warranty of merchantability and fitness for a
particular purpose.
• If any question arises or errors are found, or if any
information is missing from this manual, please
inform the nearest Yokogawa sales office.
• The specifications covered by this manual are
limited to those for the standard type under the
specified model number break-down and do not
cover custom-made instruments.
IM 01C21B01-01E
IM 01C21C01-01E
IM 01C21D01-01E
IM 01C21F01-01E
IM 01C22H01-01E
IM 01C22J01-01E
IM 01C22K01-01E
T0101.EPS
1-1
• Please note that changes in the specifications,
construction, or component parts of the instrument
may not immediately be reflected in this manual at
the time of change, provided that postponement of
revisions will not cause difficulty to the user from a
functional or performance standpoint.
• The following safety symbol marks are used in this
manual:
WARNING
Indicates a potentially hazardous situation which,
if not avoided, could result in death or serious
injury.
CAUTION
Indicates a potentially hazardous situation which,
if not avoided, may result in minor or moderate
injury. It may also be used to alert against
unsafe practices .
IMPORTANT
Indicates that operating the hardware or software
in this manner may damage it or lead to system
failure.
NOTE
Draws attention to information essential for
understanding the operation and features.
1.1 For Safe Use of Product
For the protection and safety of the operator and the
instrument or the system including the instrument,
please be sure to follow the instructions on safety
described in this manual when handling this instru-
ment. In case the instrument is handled in contradiction
to these instructions, Yokogawa does not guarantee
safety. Please give your attention to the followings.
1. INTRODUCTION
IM 01C22T02-01E
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