Omron Programmable Terminals NT631C - Manual (Page 16)

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Safety Precautions 3
!WARNING Indicates information that, if not heeded, could possibly result in loss of life or
serious injury.
!Caution Indicates information that, if not heeded, could result in relatively serious or
minor injury, damage to the product, or faulty operation.
WARNING
Do not attempt to take the unit apart and do not touch any
internal parts while the power is being supplied. Doing either
of these may result in electrical shock.
WARNING
Switch OFF the NT631C power before replacing the
backlight. Otherwise you could sustain an electric shock.