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Intended Audience 1
1 Intended Audience
This manual is intended for the following personnel, who must also have
knowledge of electrical systems (an electrical engineer or the equivalent).
• Personnel in charge of installing automation systems.
• Personnel in charge of designing automation systems.
• Personnel in charge of managing automation systems and facilities.
2 General Precautions
The user must operate the V520 Bar Code Reader according to the
performance specifications described in the operation manuals.
Please use particular care before using the V520 Bar Code Reader under
conditions which are not described in the manual or applying the V520 Bar
Code Reader to nuclear control systems, railroad systems, aviation systems,
vehicles, combustion systems, medical equipment, amusement machines,
safety equipment, and other systems, machines, and equipment that may
have a serious influence on lives and property if used improperly.
Make sure that the ratings and performance characteristics of the V520 Bar
Code Reader are sufficient for the systems, machines, and equipment, and be
sure to provide the systems, machines, and equipment with double safety
mechanisms.
This manual provides information for installing and operating OMRON V520
Bar Code Readers. Be sure to read this manual before operation and keep
this manual close at hand for reference during operation.
!WARNING It is extremely important that a V520 Bar Code Reader be used for the speci-
fied purpose and under the specified conditions, especially in applications that
can directly or indirectly affect human life.
3 Application Precautions
!WARNING Do not touch the terminals while the power is ON. Doing so may cause an
electric shock.
!WARNING It may be necessary to install a power supply breaker to turn OFF the power
supply before working on the V520 Bar Code Reader. Not turning OFF the
power supply may result in electrical shock.
!WARNING Do not allow metal fragments or lead wire scraps to fall inside the V520 Bar
Code Reader. These may cause electric shock, fire, or malfunction.
!WARNING Do not use the V520 Bar Code Reader in flammable and explosive gas atmo-
spheres. There is danger of explosion.
!WARNING Never disassemble, repair, or modify the V520 Bar Code Reader. Doing so
may cause electric shock, fire or malfunction.
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