China Electronics Technology Instruments AV3672 Series, Руководство пользователя

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2 Overview
2.2 Safe Operation Guide
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The following safety warning signs are used in the product manual to remind the user to operate the instrument
safely and pay attention to relevant information.
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.
Attention
Attention sign: it indicates important prompts but no danger.
Prompt
Prompt sign: information of the instruction and operation.
2.2.2 Operation State and Location
Pay attention to the following items before operation:
1) Unless otherwise stated, AV3672 series vector network analyzers should be placed steadily and operated indoor
with protection of IP 2X. The maximum altitude must not exceed 2,000m in operation and 4,500m in transportation.
The actual power supply voltage may be the indicated voltage ± 10%, and the power supply frequency may be the
indicated frequency ± 5%. Both the overvoltage protection and the pollution intensity are Class 2.
2) Do not place the instrument on a wet surface, vehicle, cabinet, table and other objects which are not fixed and do
not conform to the load conditions. Place the instrument steadily and fix it on the solid object surface (such as the
anti-static workbench).
3) 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.
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. If
the power supply voltage is changed, replace the fuse of the instrument.
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.
4) If the power socket is not equipped with any ON/OFF switch, the power plug can be directly pulled off to power
off the instrument. In this case, ensure it is easy to plug and unplug the power line.
5) Do not use any damaged power cord. Before connecting the power cord to the instrument, check the power cord
for integrity and safety. Reasonably place the power cord to avoid the impact from human activities. For example,
the operator may fall over if the power cord extends over long distances.
6) The TN/TT power network is required. The maximum rated current of the fuse should be 16A (contact the
manufacturer if a fuse of higher current is required).
7) Keep the socket clean and the plug and the socket in good and firm contact.
8) The socket and power cord must not be overloaded; otherwise, fire or electric shock may be caused.
9) If the voltage Vrms is higher than 30V in the test, take appropriate protective measures (such as use of the
appropriate test instrument and fuse, limitation of the current, electrical isolation and insulation, etc.) to avoid
damage to the instrument.
10) The instrument shall conform to IEC60950-1/EN60950-1 or IEC61010-1/EN61010-1 so as to realize the