KEYENCE BL-N90 Series - Manual (Page 2)

Introduction
This manual contains information about procedures for handling, operations, warnings, and
precautions about the "Wireless Hand-held Barcode Reader BL-N90 Series".
Be sure to read this section thoroughly before use. Keep this manual in a safe place for future
reference.
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Symbols
The following symbols and conventions alert you to important messages.
Be sure to read these messages carefully.
Indicates reference pages in this or another manual.
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General Cautions
• At startup and during operation, be sure to monitor the functions and performance of the
BL-N90 Series.
• We recommend that you take substantial safety measures to avoid any damage in the
event of a problem occurring.
• Do not modify the BL-N90 Series, or use it in any way other than described in the
specifications.
• When the BL-N90 Series is used in combination with other devices, functions and
performance may be degraded, depending on the operating conditions and
surrounding environment.
• Do not use the BL-N90 Series for the purpose of protecting the human body.
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Applications that Need Special Attention
When using the BL-N90 Series under the following conditions, be sure to use the BL-N90
Series under the specified rating or within the provided functions, or take sufficient safety
precautions such as providing a failsafe, and consult with KEYENCE sales staff.
• Under the conditions or environment not described in this manual
• For atomic controls, railway facilities, aviation facilities, vehicles, combustion devices,
medical equipment, amusement machines, or safety equipment
• For the applications that may affect human life or properties and particularly require
safety
DANGER
Failure to follow these instructions may lead to death or serious injury.
WARNING
Failure to follow instructions may lead to physical injury, such as electric shock
or burns.
CAUTION
Failure to follow instructions may lead to product damage.
Note Provides additional information on proper operations that can be easily mistaken.