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47DAC OPERATING MANUAL EM-9518-B Rev.4
1.2 SAFETY PRECAUTIONS
(that must be observed)
The following signs are used in this manual to provide precautions required to ensure safe usage of the unit. Please under-
stand these signs and graphic symbols, read the manual carefully and observe the description.
The following signs show seriousness of safety hazard or damage occurred when used wrongly with the signs ignored.
Indicates a potentially hazardous situation which, if not avoided, may result in
serious injury or death.
Indicates a potentially hazardous situation which, if not avoided, may result in
injury or in property damage.
Indicates prohibitions.
Indicates mandatory cautions.
Indicates cautions.
For safety, make sure that wiring is performed by qualified personnel only.
• Failure to do so may result in a fire, electric shock or injury.
Do not touch the terminals while the power is on.
• Doing so may result in electric shock.
Check the connection diagram carefully before wire connection.
• Failure to do so may result in malfunction, a fire or electric shock.
Provide safety measures outside of the unit to ensure safety in the whole system if an abnormality occurs due to mal-
function of the unit or another external factor affecting the unit’s operation.
Do not splash water on the unit except for the front panel installed correctly.
• Doing so may result in a fire, electric shock or injury.
Stop using the unit immediately if smokes, unusual smell or abnormal noises come(s) from it.
• Using the unit continuously may result in a fire or electric shock.
Stop using the unit if it is dropped or damaged.
• Using the unit continuously may result in a fire or electric shock.