IMPORTANT
An IMPORTANT sign denotes that attention is
required to avoid damage to the instrument or
system failure.
NOTE
A NOTE sign denotes information necessary for
essential understanding of operation and features.
Various symbols are marked on the instrument
itself. The meanings of these symbols are as
follows.
Functional ground terminal
Direct current
Handling precaution
This is attached to locations where this manual
must be referenced to protect personnel safety
and devices.
• When handling this instrument, follow the safety
precautions described in this document and
other precautions for the protection and safety
of this instrument and systems that incorporate
this product. When these precautions are not
complied with, the protection functions of this
instrument may be impaired or instrument
functions may not be fully demonstrated. In
this case, Yokogawa makes no guarantee
whatsoever for the quality, performance,
functions, and safety of the product.
• When performing the installation of protective
and safety circuits for this instrument or control
systems, such as lightning protection systems
or devices on this instrument or on systems
controlled by this instrument, or the foolproof
or failsafe design of processes and lines that
use this instrument or control systems, and the
design and installation of other protective and
safety circuits, the customer should implement
this appropriately at their own judgment. Also,
the customer should separately consider
achieving the above by devices other than this
instrument, and prepare devices accordingly.
• When replacing the parts of this instrument, be
sure to use only parts specified by Yokogawa.
• This product is not designed or manufactured
to be used in critical applications that
directly affect or threaten human lives. Such
applications include nuclear power equipment,
devices using radioactivity, railway facilities,
aviation equipment, air navigation facilities,
aviation facilities, and medical equipment. If so
used, it is the user’s responsibility to include in
the system additional equipment and devices
that ensure personnel safety.
• Modification of this instrument is strictly
forbidden.
• If this instrument is modified or replaced, each
explosion protection accreditation is invalidated.
• This instrument should be disposed of in
accordance with local and national legislation/
regulations.
<1. Introduction>
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IM 01F07A01-01EN
Introduction
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