<1. Introduction>
3
IM 01F07A01-02EN
The following safety symbol marks are used on this product and in this manual.
WARNING
A WARNING sign denotes a hazard. It calls attention to procedure, practice, condition or the like,
which, if not correctly performed or adhered to, could result in injury or death of personnel. This
document presents precautions for avoiding such hazards should such a situation arise.
CAUTION
A CAUTION sign denotes a hazard. It calls attention to procedure, practice, condition or the
like, which, if not correctly performed or adhered to, could result in damage to or destruction of
the product. This document presents precautions for avoiding such hazards should there be a
physical risk to the user's well-being or damage to equipment.
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.
