YOKOGAWA UT55A - Safety, Protection, and Modification of the Product; Safety Symbols and General Precautions; WARNING Statements for Operation

iii
IM 05P01C31-01EN
Safety,Protection,andModificationoftheProduct
The following symbols are used in the product and user’s manuals to indicate safety
precautions:
AC
AC/DC
“Handle with Care” (This symbol is attached to the part(s) of the product to
indicate that the user’s manual should be referred to in order to protect the
operator and the instrument from harm.)
The equipment wholly protected by double insulation or reinforced insulation.
Functional grounding terminal (Do not use this terminal as a protective grounding terminal.)
• In order to protect the system controlled by this product and the product itself, and
to ensure safe operation, observe the safety precautions described in this user’s
manual. Use of the instrument in a manner not prescribed herein may compromise the
product’s functions and the protection features inherent in the device. We assume no
liability for safety, or responsibility for the product’s quality, performance or functionality
should users fail to observe these instructions when operating the product.
•
Installation of protection and/or safety circuits with respect to a lightning protector;
protective equipment for the system controlled by the product and the product itself;
foolproof or failsafe design of a process or line using the system controlled by the
product or the product itself; and/or the design and installation of other protective and
safety circuits are to be appropriately implemented as the customer deems necessary.
•
Be sure to use the spare parts approved by YOKOGAWA when replacing parts or consumables.
• 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.
•
Modicationof
theproductisstrictlyprohibited.
• This product is intended to be handled by skilled/trained personnel for electric devices.
• ThisproductisULRecognizedComponent.InordertocomplywithULstandards,
end-products are necessary to be designed by those who have knowledge of the
requirements.
WARNING
● PowerSupply
Ensure that the instrument’s supply voltage matches the voltage of the power
supply before turning ON the power.
● DoNot
UseinanExplosiveAtmosphere
Do not operate the instrument in locations with combustible or explosive gases
orsteam.Operationinsuchenvironmentsconstitutesanextremesafetyhazard.
Use of the instrument in environments with high concentrations of corrosive gas
(H
2
S, SO
X
, etc.) for extended periods of time may cause a failure.
● DoNotRemoveInternalUnit
The internal unit should not be removed by anyone other than YOKOGAWA’s
service personnel. There are dangerous high voltage parts inside. Additionally,
do not replace the fuse by yourself.
●
Damageto
theProtectiveConstruction
Operation of the instrument in a manner not specified in this user’s manual may
damage its protective construction.