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Environment and Safety Instructions
I. Safety Protection
1. Safety precautions for the instrument
1) Use the designated packing box in instrument transportation and avoid damages arising
from falling or collision in handling.
2) Use a 220V AC three-core stabilized-voltage power supply to power the adapter, so as
to prevent damages to internal hardware arising from high-power peak pulse interference.
3) Ensure the good grounding of power supply as poor or wrong grounding may cause
damage to the instrument;
4) Take anti-electrostatic measures in operation, such as anti-electrostatic straps, to prevent
electrostatic damage to this instrument.
5) This instrument can be powered by the internal battery. If required, use the battery of
the same or recommended type for replacement; otherwise, explosion may occur.
6) The internal temperature is high during operation. In the design, heat is dissipated by the
casing. Keep at least 5cm of effective heat dissipation space for the instrument during
operation, especially in a cabinet. Ensure sufficient ventilation or use an effective thermal
conductor to transmit heat from the casing.
2. Safety precautions for other instrument & equipment
1) Check the working condition and turn off RF output before connecting the instrument,
otherwise it may output high power signal to damage the equipment to be tested;
2) The output power may be high in the self-test of this instrument. Please disconnect all
external devices.
3) If a fault alarm prompts during operation, indicating that the Radio Test Set is abnormal,
please turn off the RF switch or the power supply switch and disconnect all external
devices to avoid impacts on the device under test.
3. Personal safety precautions
1) Use appropriate handling tools and place this instrument with care to avoid personal
injuries caused by falling of this instrument.
2) Ensure that the power supply is well grounded, as poor or wrong grounding may result
in personal injuries.
3) Get the instrument cut off before wiping to prevent electric shock; only wipe the outside
of the instrument with dry or slightly wet soft cloth other than the inside.
4) This instrument has potential risks of microwave radiation in the high-power status.
Please take corresponding anti-radiation measures.
II. Environmental Protection
1. Disposal of packing container
Summary of Contents for 4992A
Page 1: ...I 4992A Radio Test Set User Manual China Electronics Technology Instruments Co Ltd...
Page 2: ......
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Page 23: ...Article I Handling Instructions 11 Article I Handling Instructions...
Page 93: ...81 Article II Technical Specifications...
Page 132: ...Article III Maintenance Instructions 120 Article III Maintenance Instructions...