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DN530
Operator Manual vii
Precautions
Before installing, setting up or operating this equipment please ensure that you have read
and fully understand all of this section and the “IMPORTANT SAFETY INSTRUCTIONS” at
the front of this manual.
This equipment is supplied by a mains voltage that can cause electric shock injury!
The following special limitations must be observed in order to maintain safety and electromagnetic
compatibility performance.
Safety warnings
This equipment is fitted with a mains
power socket. For safety reasons the
earth leads must not be disconnected.
Signal 0V is connected internally to the
chassis.
To completely disconnect this equipment
from the AC mains, while observing full
safety precautions (see “Power” on
page vii), switch off the mains at the
mains outlet. It is now safe to isolate the
unit by unplugging the mains lead from
its rear panel.
To avoid electrical shock do not remove
covers. Refer servicing to qualified
personnel only.
The power supplies — even the DC ones —
have a high current!
General precautions
The following information gives basic safety
precautions that should be observed to reduce
the risk of fire, electric shock and personal
injury:
• Never operate damaged equipment and
never operate equipment with damaged
cables.
• Do not remove, obscure or deface any
warnings or cautions.
Power
Please note that the system power supplies
contain LETHAL VOLTAGES greatly in excess of
the mains voltage and that its rails can
produce extremely large currents that could
burn out equipment and wiring if shorted. All
testing and servicing must ONLY be carried out
by approved service engineers.
This apparatus should only be operated with
the power supply connected to ground via the
ground in the mains connector.
The internal power supplies are of the switch
mode type that automatically sense the
incoming mains voltage and will work where
the nominal voltage is in the range 100VAC to
240VAC.
When removing the equipment’s electric plugs
from the outlets, always hold the plug itself
and not the cable. Pulling out the plug by the
cable can damage it.
Never insert or remove an electric plug with
wet hands.
Handling the equipment
Completely isolate the equipment electrically
and disconnect all cables from the equipment
before moving it.
When lifting or moving the equipment, always
take its size and weight into consideration.
Do not insert your fingers or hand in any gaps
or openings on the equipment, for example,
vents.
Avoid inserting or dropping foreign objects,
such as paper, plastic, metal etc., into any
gaps or openings on the equipment, for
example, vents. If this happens, immediately
disconnect the equipment from the mains (see
“Safety warnings” on page vii). Then, have
the equipment inspected by the
manufacturer's qualified service personnel.