ii
TI 33Q01J30-01E
Safety Precautions
Safety, Protection, and Modification of the Product
• In order to protect the system controlled by the product and the product itself and ensure
safe operation, observe the safety precautions described in the Technical Information (this
book and Installation Guidance) and the User’s Manuals. Yokogawa Electric Corporation
("YOKOGAWA") assume no liability for safety if users fail to observe these instructions
when operating the product.
• If this product is used in a manner not specified in the Technical Information (this book and
Installation Guidance) and the User’s Manuals, the protection provided by this product may
be impaired.
• If any protection or safety circuit is required for the system controlled by the product or for
the product itself, prepare it separately.
• Be sure to use the spare parts approved by YOKOGAWA when replacing parts or
consumables.
• Do not use the accessories (Power supply cord set, etc.) that came with the product for any
other products.
• Modification of the product is strictly prohibited.
• The following symbols are used in the product and instruction manual to indicate that there
are precautions for safety:
Indicates that caution is required. This symbol for the Product indicates the possibility
of dangers such as electric shock on personnel and equipment, and also indicates
that the user must refer to the User’s Manuals for necessary actions. In the
User’s Manuals, this symbol is used together with a word “CAUTION” or “WARNING”
at the locations where precautions for avoiding dangers are described.
Indicates that caution is required for hot surface. Note that the devices with this symbol
become hot. The risk of burn injury or some damages exists if the devices are touched or
contacted.
Identifies a protective conductor terminal. Before using the Product, you must
ground the protective conductor terminal to avoid electric shock.
Identifies a functional grounding terminal. A terminal marked “FG” also has the same
function. This terminal is used for grounding other than protective grounding. Before
using the Product, you must ground this terminal.
Indicates an AC supply.
Indicates a DC supply.
Indicates the ON state. The state of a power on/off switch and others is indicated.
Indicates the OFF state. The state of a power on/off switch and others is indicated.
Oct. 5, 2018-00
