For Safe Use - Optex DOS-20 Instruction Manual

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For Safe Use

Be sure to read this instruction manual in order to
use this Optical Dissolved Oxygen Sensor properly.
● Please thoroughly read "For Safe Use" before using this Optical
Dissolved Oxygen Sensor properly.
● Because these precautions are related to failure or malfunction, observe
the precautions for use without fail.
Do not use DOS-20 except for measurement of water
quality.
" " denotes "Prohibited action", and "
Turn off the Power
immediately in the unlikely
event that there occur any
abnormalities such as
smoke or abnormal noise.
Otherwise it may
cause fire or an electric
shock. Contact your
dealer after confirming that
smoke is no longer
being emitted.
Power
supply
OFF
" denotes "Required action".
Do not disassemble or
modify the product. The
unit contains high-voltage
parts that may cause
the outbreak of fire or
electric shocks. Contact
your dealer for internal
inspections, maintenance
and repairs.
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