Keysight Technologies N4373D, User Manual

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Introduction
10
Keysight
N4373D Lightwave Component Analyzer, User’s Guide
Instrument markings
The instruction manual symbol. The product is
marked with this warning symbol when it is necessary
for the user to refer to the instructions in the manual.
The laser radiation symbol. This warning symbol is
marked on products which have a laser output.
The Off-On symbols are used to mark the positions of
the instrument power operating switch.
The recycling symbol indicates the general ease with
which the instrument can be recycled.
The C-Tick mark is the certification mark of the
Australian Communications Authority.
The CE mark is the conformity marking of the
European Community.
The CSA mark is a the certification mark of the
Canadian Standards Association.
WA R N I N G
If this product is not used as specified, the protection provided by
the equipment could be impaired. This product must be used in a
normal condition (in which all means for protection are intact)
only.
WA R N I N G
No operator serviceable parts inside. Refer servicing to qualified
service personnel. To prevent electrical shock do not remove
covers.
WA R N I N G
This is a Safety Class 1 Product (provided with protective earth).
The mains plug shall only be inserted in a socket outlet provided
with a protective earth contact. Any interruption of the protective
conductor inside or outside of the instrument is likely to make the
instrument dangerous. Intentional interruption is prohibited.
WA R N I N G
To prevent electrical shock, disconnect the instrument from mains
before cleaning. Use a dry cloth or one slightly dampened with
water to clean the external case parts. Do not attempt to clean
internally.