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5. Pre-operation Inspection
Device Installation
Confirm whether the installation location is appropriate.
This communication conversion box has been designed for indoor use. Ensure
that it is installed level on a wall and in a location that is exposed neither to rain
nor to direct sunlight.
Electrical Work
Failure to observe electrical work warnings may lead to electrical leaks and electric
shock.
z
Confirm whether a dedicated power source has been provided.
The main power supply must be provided with a dedicated earth-leakage circuit
breaker (fitted with an overcurrent protection).
Ensure that such a breaker is not shared with other equipments. Furthermore,
ensure that the power supply can remain constantly turned on.
z
Confirm whether the device has been grounded.
At the very least, D-class grounding (with ground resistance of 100
Ω
or less)
must be carried out at the ground terminal. Failure to observe this precaution can
lead to electric shock and malfunction.
WARNING
Before operating the ML2-200 Water-processing Communication Conversion
Box, check the points below to ensure correct installation. Do not use the
ML2-200 if it is installed incorrectly. Failure to observe this precaution may
cause serious accidents.
WARNING
The power-supply voltage must always be inspected. If this voltage does not
match the ML2-200 specifications, there is a danger that malfunction, burnout,
the outbreak of fire, and other dangerous situations may develop.
