Manual

<1. Introduction>
1-1
IM 01C25T01-06EN
1. Introduction
Thank you for purchasing the DPharp EJX
series pressure transmitter/EJA series pressure
transmitter(“transmitter”).
The transmitters are precisely calibrated at the
factory before shipment.
To ensure both safety and efciency, please
read this manual carefully before operating the
instrument.
This manual describes the HART protocol
communication functions of the transmitter
and explains how to set the parameters for the
transmitters using the HART conguration tool.
For information on the installation, wiring, and
maintenance of the transmitters, please refer to the
user’s manual of each model.
WARNING
When using the transmitter in a Safety
Instrumented Systems (SIS) application, refer
to Appendix 1 in this manual. The instructions
and procedures in the appendix must be strictly
followed in order to maintain the designed safety
integrity of the transmitter.
 Regarding This Manual
• This manual should be provided 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
tness 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
ofce.
• The specications covered by this manual are
limited to those for the standard type under the
specied model number break-down and do not
cover custom-made instruments.
• Please note that changes in the specications,
construction, or component parts of the
instrument may not immediately be reected
in this manual at the time of change, provided
that postponement of revisions will not cause
difculty to the user from a functional or
performance standpoint.
• The following safety symbols 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.