Keysight Technologies N774 C Series, Руководство пользователя

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14 Keysight N774xC Series Multiport Power Meter User’s Guide
1 General Operating Considerations
General Information
The following general safety precautions must be observed during all
phases of operation, service, and repair of this instrument. Failure to
comply with these precautions or with specific warnings elsewhere in this
manual violates safety standards of design, manufacture, and intended
use of the instrument. Keysight Technologies assumes no liability for the
customer’s failure to comply with these requirements.
Before operation, you should review the instrument and manual for safety
markings and instructions. You must follow these to ensure safe operation
and to maintain the instrument in safe condition.
Some circuits are powered whenever the instrument is connected to the
AC power source. To disconnect from the line power, disconnect the
power cord either at the rear power inlet or at the AC line power source
(receptacle). One of these must always be accessible. If the instrument is
in a cabinet, it must be disconnected from the line power by the system’s
line power switch.
WARNING
Ensure the proper usage for the instrument. The protection provided
by the instrument may be impaired. The operator of this instrument is
advised to use the equipment in a manner as specified in this document
WARNING
To avoid hazardous electrical shock, do not perform electrical tests when
there are signs of shipping damage to any portion of the outer enclosure
(covers, panels, etc.).
WARNING
Please pay attention to the following laser safety warning:
Under no circumstances look into the end of an optical cable attached to
the optical output when the instrument is operational. The laser radiation
can seriously damage your eyesight. Do not enable the laser when there
is no fiber attached to the optical output connector. Refer servicing only
to qualified and authorized personnel.