Omron E5*D series User Manual page 7

 Safety Precautions
Minor injury due to electric shock may occasionally occur.
Do not touch the terminals while power is being supplied.
Electric shock, fire, or malfunction may occasionally occur.
Do not allow metal objects, conductors, debris (such as cuttings)
from installation work, moisture, or other foreign matter to enter the
Digital Controller, the Setup Tool ports, or between the pins on the
connectors on the Setup Tool cable.
Attach the cover to the front-panel Setup Tool port whenever you
are not using it to prevent foreign objects from entering the port.
Minor injury from explosion may occasionally occur.
Do not use the product where subject to flammable or explosive gas.
Minor electric shock or fire may occasionally occur.
Do not use a Digital Controller or cable that is damaged.
Minor electric shock, fire, or malfunction may occasionally occur.
Never disassemble, modify, or repair the product or touch any of the
internal parts.
If the output relays are used past their life expectancy, contact fusing
or burning may occasionally occur.
Always consider the application conditions and use the output relays
within their rated load and electrical life expectancy. The life
expectancy of output relays varies considerably with the output load
and switching conditions.
E5@D Digital Temperature Controllers User's Manual (H224)
CAUTION
Safety Precautions
5