<1. Introduction>
1-1
IM 01C25T03-01E
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
efficiency, please read this manual carefully before
operating the instrument.
This manual describes the BRAIN protocol
communication functions of the transmitter and
explains how to set the parameters for the
transmitters using the BT200 handheld terminal.
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 transmitters in a Safety
Instrumented System application, refer to the
Functional Safety Manual (Document No.:
TI 01C25A05-01EN or TI 01C25A05-21EN for
option code SLT) and follow the instructions and
procedures described there.The document can
be downloaded from the website of Yokogawa.
(Website address:
https://www.yokogawa.com/solutions/products-
platforms/field-instruments/
)
In order to satisfy the requirement of Safety
Instrumented System, executing parameters
setting is required. Please refer to 3.2 “Setting
Parameters Using the BT200” for setting range.
Please also refer to the status output setting in
the same clause. After installing the transmitter,
confirm that the range and unit is set correctly.
Calibration of the transmitters shall be done after
completing the range setting.
Regarding This Manual
• This manual should be provided 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.
• 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 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.
