Ceyear 4051 Series, User Manual

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2 General
2.2 Safe operating manual
7
Danger
Danger sign: personal injury and equipment damage may be caused if no
attention is paid.
Warning
Warning sign: personal injury and equipment damage may be caused if no
attention is paid.
Caution
Caution sign: minor or moderate personal injury and equipment damage may be
caused if no attention is paid.
Caution
Caution sign: it indicates important prompts but no danger.
Prompt
Prompt sign: information of the instruction and operation.
2.2.2 Operation Status and Location
Pay attention to the following items before operation:
1) Unless otherwise stated, the 4051 Series Signal/Spectrum Analyzer should be placed steadily and operated
indoor. The instrument should be operated and transported at places with an altitude no higher than 4,600
m. The actual power supply voltage may be the indicated voltage ± 10%, and the power supply frequency
may be the indicated frequency ± 5%.
2) Unless otherwise stated, the instrument is not allowed to be placed on a wet surface, vehicle, cabinet, table
and other objects which are not fixed and do not conform to the load conditions since it is has not gone
through waterproof treatment. Place the instrument steadily and fix it on the solid object surface (such as
the anti-static workbench).
3) The instrument must not be placed in misty environment. For example, if the instrument is handled in an
environment with temperature fluctuation, hazards such as electric shock may be caused by water drops
produced on the instrument.
4) Do not place the instrument on a heat dissipating surface (such as a radiator). The operating temperature
must not exceed the specified range of relevant indicators of the instrument. Overheating may result in
electric shock, fire, etc.
5) It is prohibited to tuck any article from the opening on the housing into the instrument or cover openings
or notches on the instrument for they are used for ventilation of the instrument and preventing overheating.
2.2.3 Power Safety
Precautions for the power supply of the instrument:
1) Ensure that the actual power supply voltage is the same as that marked on the instrument before
powering-on.
2) Refer to the power supply requirements on the rear panel of the instrument. Use three-core power cords.
Ensure that the power cord is grounded reliably. Floating or improper grounding may result in damage to
the instrument and even operator injuries.
3) Do not damage the power cord; otherwise, electrical leakage may be caused, resulting in instrument
damage and even operator injuries. If any, check the external power cord or terminal block before
operation to ensure the power safety.