Rigol DM858 - Safety Notices and Symbols

replacement especially to circuits or accessories must be performed by RIGOL
authorized personnel.
• Provide Adequate Ventilation.
Inadequate ventilation may cause an increase of temperature in the instrument,
which would cause damage to the instrument. So please keep the instrument
well ventilated and inspect the air outlet and the fan regularly.
• Do Not Operate in Wet Conditions.
To avoid short circuit inside the instrument or electric shock, never operate the
instrument in a humid environment.
• Do Not Operate in an Explosive Atmosphere.
To avoid personal injuries or damage to the instrument, never operate the
instrument in an explosive atmosphere.
• Keep instrument surfaces clean and dry.
To avoid dust or moisture from affecting the performance of the instrument,
keep the surfaces of the instrument clean and dry.
• Prevent Electrostatic Impact.
Operate the instrument in an electrostatic discharge protective environment to
avoid damage induced by static discharges. Always ground both the internal and
external conductors of cables to release static before making connections.
• Handle with Caution.
Please handle with care during transportation to avoid damage to keys, knobs,
interfaces, and other parts on the panels.
WARNING
Equipment meeting Class A requirements may not offer adequate protection to broadcast
services within residential environment.
1.2 Safety Notices and Symbols
Safety Notices in this Manual:
WARNING
Indicates a potentially hazardous situation or practice which, if not avoided, will result in
serious injury or death.
CAUTION
Indicates a potentially hazardous situation or practice which, if not avoided, could result
in damage to the product or loss of important data.
Safety Requirement
DM858 Series User Guide
2
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