Safety Precautions
ii
1. Safety precautions on installation
DANGER
Mandatory action
Always ground the device.
• Otherwise, an electric shock or fire may occur.
Caution
Mandatory action
Avoid installation or storage in the following environment.
• Place with dust
• Place with corrosive gases (SO
2
, H
2
S) or flammable gases
• Place with vibrations or shocks over tolerance
• Place with condensation due to rapid temperature changes
• Low or high temperature outside the installation conditions
• High humidity outside the installation conditions
• Place with a direct sunlight
• Near equipment generating strong radio waves and magnetic fields
Mandatory action
Install the device in a place where maintenance and
inspection are easy.
Otherwise, recovery upon failure may be difficult, resulting in a major
accident.
Prohibition
Do not block the airflow orifices, inlets, and outlets of the
device.
Fire or failure may occur due to overheat.
Prohibition
Do not apply any voltage or current over the specified
rating to the input-output terminals.
The device may be damaged.
Mandatory action
Place the input-output signal lines and transmission lines
away from the power line or equipment generating
magnetic and electric fields.
Otherwise, malfunction or failure of the device may occur due to noise.
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